2123 lines
61 KiB
PHP
2123 lines
61 KiB
PHP
<?php
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/**
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* @file view.inc
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* Provides the view object type and associated methods.
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*/
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/**
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* @defgroup views_objects Objects that represent a View or part of a view.
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* @{
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* These objects are the core of Views do the bulk of the direction and
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* storing of data. All database activity is in these objects.
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*/
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/**
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* An object to contain all of the data to generate a view, plus the member
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* functions to build the view query, execute the query and render the output.
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*/
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class view extends views_db_object {
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var $db_table = 'views_view';
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var $base_table = 'node';
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// State variables
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var $built = FALSE;
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var $executed = FALSE;
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var $args = array();
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var $build_info = array();
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var $use_ajax = FALSE;
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// Where the results of a query will go.
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var $result = array();
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// pager variables
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var $pager = array(
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'use_pager' => FALSE,
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'items_per_page' => 10,
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'element' => 0,
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'offset' => 0,
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'current_page' => 0,
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);
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// Places to put attached renderings:
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var $attachment_before = '';
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var $attachment_after = '';
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// Exposed widget input
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var $exposed_data = array();
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var $exposed_input = array();
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// Used to store views that were previously running if we recurse.
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var $old_view = array();
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/**
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* Identifier of the current display.
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*
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* @var string
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*/
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var $current_display;
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/**
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* Stores all the views substitutions.
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*/
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var $substitutions = array();
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/**
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* Constructor
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*/
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function view() {
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parent::init();
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// Make sure all of our sub objects are arrays.
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foreach ($this->db_objects() as $object) {
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$this->$object = array();
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}
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$this->query = new stdClass();
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}
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/**
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* Returns a list of the sub-object types used by this view. These types are
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* stored on the display, and are used in the build process.
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*/
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function display_objects() {
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return array('argument', 'field', 'sort', 'filter', 'relationship');
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}
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/**
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* Returns the complete list of dependent objects in a view, for the purpose
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* of initialization and loading/saving to/from the database.
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*/
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public static function db_objects() {
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return array('display');
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}
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/**
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* Set the arguments that come to this view. Usually from the URL
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* but possibly from elsewhere.
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*/
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function set_arguments($args) {
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$this->args = $args;
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}
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/**
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* Set the page size for ranged or pager queries
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*/
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function set_items_per_page($items_per_page) {
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$this->pager['items_per_page'] = $items_per_page;
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if (empty($items_per_page)) {
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$this->pager['use_pager'] = FALSE;
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}
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}
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/**
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* Change/Set the current page for the pager.
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*/
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function set_current_page($page) {
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$this->pager['current_page'] = $page;
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}
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/**
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* Whether or not the pager should be used.
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*/
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function set_use_pager($use_pager) {
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$this->pager['use_pager'] = $use_pager;
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}
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/**
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* The pager element id to use if use_apger is on
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*/
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function set_pager_element($pager_element) {
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$this->pager['element'] = $pager_element;
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}
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/**
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* Synchronize views pager with global pager variables
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*
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*/
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function synchronize_pager() {
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if (!empty($this->pager['use_pager'])) {
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// dump information about what we already know into the globals
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global $pager_page_array, $pager_total, $pager_total_items;
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// total rows in query
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$pager_total_items[$this->pager['element']] = $this->total_rows;
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// total pages
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$pager_total[$this->pager['element']] = ceil($pager_total_items[$this->pager['element']] / $this->pager['items_per_page']);
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// What page was requested:
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$pager_page_array = isset($_GET['page']) ? explode(',', $_GET['page']) : array();
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// If the requested page was within range. $this->pager['current_page']
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// defaults to 0 so we don't need to set it in an out-of-range condition.
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if (!empty($pager_page_array[$this->pager['element']])) {
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$page = intval($pager_page_array[$this->pager['element']]);
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if ($page > 0 && $page < $pager_total[$this->pager['element']]) {
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$this->pager['current_page'] = $page;
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}
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}
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$pager_page_array[$this->pager['element']] = $this->pager['current_page'];
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}
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}
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/**
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* How many records to skip. This does not function if use_pager is
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* set.
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*/
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function set_offset($offset) {
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$this->pager['offset'] = $offset;
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}
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/**
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* Whether or not AJAX should be used. If AJAX is used, paging,
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* tablesorting and exposed filters will be fetched via an AJAX call
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* rather than a page refresh.
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*/
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function set_use_ajax($use_ajax) {
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$this->use_ajax = $use_ajax;
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}
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/**
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* Set the exposed filters input to an array. If unset they will be taken
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* from $_GET when the time comes.
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*/
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function set_exposed_input($filters) {
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$this->exposed_input = $filters;
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}
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/**
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* Figure out what the exposed input for this view is.
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*/
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function get_exposed_input() {
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// Fill our input either from $_GET or from something previously set on the
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// view.
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if (empty($this->exposed_input)) {
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$this->exposed_input = $_GET;
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// unset items that are definitely not our input:
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foreach (array('page', 'q') as $key) {
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if (isset($this->exposed_input[$key])) {
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unset($this->exposed_input[$key]);
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}
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}
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// If we have no input at all, check for remembered input via session.
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// If filters are not overridden, store the 'remember' settings on the
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// default display. If they are, store them on this display. This way,
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// multiple displays in the same view can share the same filters and
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// remember settings.
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$display_id = ($this->display_handler->is_defaulted('filters')) ? 'default' : $this->current_display;
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if (empty($this->exposed_input) && !empty($_SESSION['views'][$this->name][$display_id])) {
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$this->exposed_input = $_SESSION['views'][$this->name][$display_id];
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}
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}
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return $this->exposed_input;
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}
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/**
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* Set the display for this view and initialize the display handler.
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*/
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function init_display($reset = FALSE) {
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// The default display is always the first one in the list.
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if (isset($this->current_display)) {
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return TRUE;
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}
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// Instantiate all displays
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foreach (array_keys($this->display) as $id) {
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// Correct for shallow cloning
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// Often we'll have a cloned view so we don't mess up each other's
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// displays, but the clone is pretty shallow and doesn't necessarily
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// clone the displays. We can tell this by looking to see if a handler
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// has already been set; if it has, but $this->current_display is not
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// set, then something is dreadfully wrong.
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if (!empty($this->display[$id]->handler)) {
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$this->display[$id] = drupal_clone($this->display[$id]);
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unset($this->display[$id]->handler);
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}
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$this->display[$id]->handler = views_get_plugin('display', $this->display[$id]->display_plugin);
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if (!empty($this->display[$id]->handler)) {
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// Initialize the new display handler with data.
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$this->display[$id]->handler->init($this, $this->display[$id]);
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// If this is NOT the default display handler, let it know which is
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// since it may well utilize some data from the default.
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// This assumes that the 'default' handler is always first. It always
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// is. Make sure of it.
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if ($id != 'default') {
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$this->display[$id]->handler->default_display = &$this->display['default']->handler;
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}
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}
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}
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$this->current_display = 'default';
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$this->display_handler = &$this->display['default']->handler;
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return TRUE;
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}
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/**
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* Get the first display that is accessible to the user.
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*
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* @param $displays
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* Either a single display id or an array of display ids.
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*/
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function choose_display($displays) {
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if (!is_array($displays)) {
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return $displays;
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}
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$this->init_display();
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foreach ($displays as $display_id) {
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if ($this->display[$display_id]->handler->access()) {
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return $display_id;
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}
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}
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return 'default';
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}
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/**
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* Set the display as current.
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*
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* @param $display_id
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* The id of the display to mark as current.
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*/
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function set_display($display_id = NULL) {
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// If we have not already initialized the display, do so. But be careful.
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if (empty($this->current_display)) {
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$this->init_display();
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// If handlers were not initialized, and no argument was sent, set up
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// to the default display.
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if (empty($display_id)) {
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$display_id = 'default';
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}
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}
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$display_id = $this->choose_display($display_id);
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// If no display id sent in and one wasn't chosen above, we're finished.
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if (empty($display_id)) {
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return FALSE;
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}
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// Ensure the requested display exists.
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if (empty($this->display[$display_id])) {
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$display_id = 'default';
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if (empty($this->display[$display_id])) {
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vpr(t('set_display() called with invalid display id @display.', array('@display' => $display_id)));
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return FALSE;
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}
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}
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// Set the current display.
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$this->current_display = $display_id;
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// Ensure requested display has a working handler.
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if (empty($this->display[$display_id]->handler)) {
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return FALSE;
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}
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// Set a shortcut
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$this->display_handler = &$this->display[$display_id]->handler;
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return TRUE;
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}
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/**
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* Find and initialize the style plugin.
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*
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* Note that arguments may have changed which style plugin we use, so
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* check the view object first, then ask the display handler.
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*/
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function init_style() {
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if (isset($this->style_plugin)) {
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return is_object($this->style_plugin);
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}
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if (!isset($this->plugin_name)) {
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$this->plugin_name = $this->display_handler->get_option('style_plugin');
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$this->style_options = $this->display_handler->get_option('style_options');
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}
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$this->style_plugin = views_get_plugin('style', $this->plugin_name);
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if (empty($this->style_plugin)) {
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return FALSE;
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}
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// init the new style handler with data.
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$this->style_plugin->init($this, $this->display[$this->current_display], $this->style_options);
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return TRUE;
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}
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/**
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* Acquire and attach all of the handlers.
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*/
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function init_handlers() {
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if (empty($this->inited)) {
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foreach (views_object_types() as $key => $info) {
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$this->_init_handler($key, $info);
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}
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$this->inited = TRUE;
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}
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}
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/**
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* Create a list of base tables eligible for this view. Used primarily
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* for the UI. Display must be already initialized.
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*/
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function get_base_tables() {
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$base_tables = array(
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$this->base_table => TRUE,
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'#global' => TRUE,
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);
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foreach ($this->display_handler->get_handlers('relationship') as $handler) {
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$base_tables[$handler->definition['base']] = TRUE;
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}
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return $base_tables;
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}
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/**
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* Run the pre_query() on all active handlers.
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*/
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function _pre_query() {
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foreach (views_object_types() as $key => $info) {
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$handlers = &$this->$key;
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$position = 0;
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foreach ($handlers as $id => $handler) {
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$handlers[$id]->position = $position;
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$handlers[$id]->pre_query();
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$position++;
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}
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}
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}
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/**
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* Get's all the substitutions and store them.
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*/
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function substitutions($reset = FALSE) {
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if ($reset || empty($this->substitutions)) {
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$this->substitutions = module_invoke_all('views_query_substitutions', $this);
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}
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return $this->substitutions;
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}
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/**
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* Attach all of the handlers for each type.
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*
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* @param $key
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* One of 'argument', 'field', 'sort', 'filter', 'relationship'
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* @param $info
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* The $info from views_object_types for this object.
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*/
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function _init_handler($key, $info) {
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// Load the requested items from the display onto the object.
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$this->$key = &$this->display_handler->get_handlers($key);
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// This reference deals with difficult PHP indirection.
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$handlers = &$this->$key;
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// Run through and test for accessibility.
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foreach ($handlers as $id => $handler) {
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if (!$handler->access()) {
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unset($handlers[$id]);
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}
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}
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}
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/**
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* Render the exposed filter form.
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*
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* This actually does more than that; because it's using FAPI, the form will
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* also assign data to the appropriate handlers for use in building the
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* query.
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*/
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function render_exposed_form($block = FALSE) {
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// Deal with any exposed filters we may have, before building.
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$form_state = array(
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'view' => &$this,
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'display' => &$this->display_handler->display,
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'method' => 'get',
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'rerender' => TRUE,
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'no_redirect' => TRUE,
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);
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// Some types of displays (eg. attachments) may wish to use the exposed
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// filters of their parent displays instead of showing an additional
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// exposed filter form for the attachment as well as that for the parent.
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if (!$this->display_handler->displays_exposed() || (!$block && $this->display_handler->get_option('exposed_block'))) {
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unset($form_state['rerender']);
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}
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if (!empty($this->ajax)) {
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$form_state['ajax'] = TRUE;
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}
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$output = drupal_build_form('views_exposed_form', $form_state);
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if (!empty($form_state['js settings'])) {
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$this->js_settings = $form_state['js settings'];
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}
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// Don't render exposed filter form when there's form errors.
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// Applies when filters are in a block ("exposed_block" option).
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if (form_get_errors() && empty($form_state['rerender'])) {
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return NULL;
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}
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return $output;
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}
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/**
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* Build all the arguments.
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*/
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function _build_arguments() {
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// Initially, we want to build sorts and fields. This can change, though,
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// if we get a summary view.
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if (empty($this->argument)) {
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return TRUE;
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}
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// build arguments.
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$position = -1;
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// Create a title for use in the breadcrumb trail.
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$title = $this->display_handler->get_option('title');
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$this->build_info['breadcrumb'] = array();
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$breadcrumb_args = array();
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$substitutions = array();
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$status = TRUE;
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// Iterate through each argument and process.
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foreach ($this->argument as $id => $arg) {
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$position++;
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$argument = &$this->argument[$id];
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if ($argument->broken()) {
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continue;
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}
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$argument->set_relationship();
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$arg = isset($this->args[$position]) ? $this->args[$position] : NULL;
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$argument->position = $position;
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if (isset($arg) || $argument->has_default_argument()) {
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if (!isset($arg)) {
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$arg = $argument->get_default_argument();
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// make sure default args get put back.
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if (isset($arg)) {
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$this->args[$position] = $arg;
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}
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}
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// Set the argument, which will also validate that the argument can be set.
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if (!$argument->set_argument($arg)) {
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$status = $argument->validate_fail($arg);
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break;
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}
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if ($argument->is_wildcard()) {
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$arg_title = $argument->wildcard_title();
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}
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else {
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$arg_title = $argument->get_title();
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$argument->query();
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}
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// Add this argument's substitution
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$substitutions['%' . ($position + 1)] = $arg_title;
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// Since we're really generating the breadcrumb for the item above us,
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// check the default action of this argument.
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if ($this->display_handler->uses_breadcrumb() && $argument->uses_breadcrumb()) {
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$path = $this->get_url($breadcrumb_args);
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if (strpos($path, '%') === FALSE) {
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$breadcrumb = !empty($argument->options['breadcrumb'])? $argument->options['breadcrumb'] : $title;
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$this->build_info['breadcrumb'][$path] = str_replace(array_keys($substitutions), $substitutions, $breadcrumb);
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}
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}
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// Allow the argument to muck with this breadcrumb.
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$argument->set_breadcrumb($this->build_info['breadcrumb']);
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// Test to see if we should use this argument's title
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if (!empty($argument->options['title'])) {
|
|
$title = $argument->options['title'];
|
|
}
|
|
|
|
$breadcrumb_args[] = $arg;
|
|
}
|
|
else {
|
|
// determine default condition and handle.
|
|
$status = $argument->default_action();
|
|
break;
|
|
}
|
|
|
|
// Be safe with references and loops:
|
|
unset($argument);
|
|
}
|
|
|
|
// set the title in the build info.
|
|
if (!empty($title)) {
|
|
$this->build_info['title'] = str_replace(array_keys($substitutions), $substitutions, $title);
|
|
}
|
|
|
|
// Store the arguments for later use.
|
|
$this->build_info['substitutions'] = $substitutions;
|
|
|
|
return $status;
|
|
}
|
|
|
|
/**
|
|
* Do some common building initialization.
|
|
*/
|
|
function init_query() {
|
|
// Create and initialize the query object.
|
|
$views_data = views_fetch_data($this->base_table);
|
|
$this->base_field = $views_data['table']['base']['field'];
|
|
if (!empty($views_data['table']['base']['database'])) {
|
|
$this->base_database = $views_data['table']['base']['database'];
|
|
}
|
|
views_include('query');
|
|
$this->query = new views_query($this->base_table, $this->base_field);
|
|
}
|
|
|
|
/**
|
|
* Build the query for the view.
|
|
*/
|
|
function build($display_id = NULL) {
|
|
if (!empty($this->built)) {
|
|
return;
|
|
}
|
|
|
|
if (empty($this->current_display) || $display_id) {
|
|
if (!$this->set_display($display_id)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
// Let modules modify the view just prior to building it.
|
|
foreach (module_implements('views_pre_build') as $module) {
|
|
$function = $module . '_views_pre_build';
|
|
$function($this);
|
|
}
|
|
|
|
// Attempt to load from cache.
|
|
// @todo Load a build_info from cache.
|
|
|
|
$start = views_microtime();
|
|
// If that fails, let's build!
|
|
$this->build_info = array(
|
|
'query' => '',
|
|
'count_query' => '',
|
|
'query_args' => array(),
|
|
);
|
|
|
|
$this->init_query();
|
|
|
|
// Call a module hook and see if it wants to present us with a
|
|
// pre-built query or instruct us not to build the query for
|
|
// some reason.
|
|
// @todo: Implement this. Use the same mechanism Panels uses.
|
|
|
|
// Run through our handlers and ensure they have necessary information.
|
|
$this->init_handlers();
|
|
|
|
// Let the handlers interact with each other if they really want.
|
|
$this->_pre_query();
|
|
|
|
if ($this->display_handler->uses_exposed()) {
|
|
$this->exposed_widgets = $this->render_exposed_form();
|
|
if (form_set_error() || !empty($this->build_info['abort'])) {
|
|
$this->built = TRUE;
|
|
// Don't execute the query, but rendering will still be executed to display the empty text.
|
|
$this->executed = TRUE;
|
|
return empty($this->build_info['fail']);
|
|
}
|
|
}
|
|
|
|
// Build all the relationships first thing.
|
|
$this->_build('relationship');
|
|
|
|
// Build all the filters.
|
|
$this->_build('filter');
|
|
|
|
$this->build_sort = TRUE;
|
|
|
|
// Arguments can, in fact, cause this whole thing to abort.
|
|
if (!$this->_build_arguments()) {
|
|
$this->build_time = views_microtime() - $start;
|
|
$this->attach_displays();
|
|
return $this->built;
|
|
}
|
|
|
|
// Initialize the style; arguments may have changed which style we use,
|
|
// so waiting as long as possible is important. But we need to know
|
|
// about the style when we go to build fields.
|
|
if (!$this->init_style()) {
|
|
$this->build_info['fail'] = TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
if ($this->style_plugin->uses_fields()) {
|
|
$this->_build('field');
|
|
}
|
|
|
|
// Build our sort criteria if we were instructed to do so.
|
|
if (!empty($this->build_sort)) {
|
|
// Allow the style handler to deal with sorting.
|
|
if ($this->style_plugin->build_sort()) {
|
|
$this->_build('sort');
|
|
}
|
|
// allow the plugin to build second sorts as well.
|
|
$this->style_plugin->build_sort_post();
|
|
}
|
|
|
|
// Allow display handler to affect the query:
|
|
$this->display_handler->query();
|
|
|
|
// Allow style handler to affect the query:
|
|
$this->style_plugin->query();
|
|
|
|
if (variable_get('views_sql_signature', FALSE)) {
|
|
$this->query->add_field(NULL, "'" . $this->name . ':' . $this->current_display . "'", 'view_name');
|
|
}
|
|
|
|
// Let modules modify the query just prior to finalizing it.
|
|
foreach (module_implements('views_query_alter') as $module) {
|
|
$function = $module . '_views_query_alter';
|
|
$function($this, $this->query);
|
|
}
|
|
|
|
$this->build_info['query'] = $this->query->query();
|
|
$this->build_info['count_query'] = $this->query->query(TRUE);
|
|
$this->build_info['query_args'] = $this->query->get_where_args();
|
|
$this->built = TRUE;
|
|
$this->build_time = views_microtime() - $start;
|
|
|
|
// Attach displays
|
|
$this->attach_displays();
|
|
|
|
// Let modules modify the view just after building it.
|
|
foreach (module_implements('views_post_build') as $module) {
|
|
$function = $module . '_views_post_build';
|
|
$function($this);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Internal method to build an individual set of handlers.
|
|
*/
|
|
function _build($key) {
|
|
$handlers = &$this->$key;
|
|
foreach ($handlers as $id => $data) {
|
|
if (!empty($handlers[$id]) && is_object($handlers[$id])) {
|
|
// Give this handler access to the exposed filter input.
|
|
if (!empty($this->exposed_data)) {
|
|
$rc = $handlers[$id]->accept_exposed_input($this->exposed_data);
|
|
$handlers[$id]->store_exposed_input($this->exposed_data, $rc);
|
|
if (!$rc) {
|
|
continue;
|
|
}
|
|
}
|
|
$handlers[$id]->set_relationship();
|
|
$handlers[$id]->query();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Execute the view's query.
|
|
*/
|
|
function execute($display_id = NULL) {
|
|
if (empty($this->built)) {
|
|
if (!$this->build($display_id)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
if (!empty($this->executed)) {
|
|
return TRUE;
|
|
}
|
|
|
|
// Let modules modify the view just prior to executing it.
|
|
foreach (module_implements('views_pre_execute') as $module) {
|
|
$function = $module . '_views_pre_execute';
|
|
$function($this);
|
|
}
|
|
|
|
$query = db_rewrite_sql($this->build_info['query'], $this->base_table, $this->base_field, array('view' => &$this));
|
|
$count_query = db_rewrite_sql($this->build_info['count_query'], $this->base_table, $this->base_field, array('view' => &$this));
|
|
|
|
$args = $this->build_info['query_args'];
|
|
|
|
vpr($query);
|
|
|
|
|
|
// Check for already-cached results.
|
|
if (!empty($this->live_preview)) {
|
|
$cache = FALSE;
|
|
}
|
|
else {
|
|
$cache = $this->display_handler->get_cache_plugin();
|
|
}
|
|
if ($cache && $cache->cache_get('results')) {
|
|
$this->synchronize_pager();
|
|
vpr('Used cached results');
|
|
}
|
|
else {
|
|
$items = array();
|
|
if ($query) {
|
|
$replacements = $this->substitutions();
|
|
$query = str_replace(array_keys($replacements), $replacements, $query);
|
|
$count_query = 'SELECT COUNT(*) FROM (' . str_replace(array_keys($replacements), $replacements, $count_query) . ') count_alias';
|
|
|
|
if (is_array($args)) {
|
|
foreach ($args as $id => $arg) {
|
|
$args[$id] = str_replace(array_keys($replacements), $replacements, $arg);
|
|
}
|
|
}
|
|
|
|
// Allow for a view to query an external database.
|
|
if (isset($this->base_database)) {
|
|
db_set_active($this->base_database);
|
|
$external = TRUE;
|
|
}
|
|
|
|
$start = views_microtime();
|
|
if (!empty($this->pager['items_per_page'])) {
|
|
// We no longer use pager_query() here because pager_query() does not
|
|
// support an offset. This is fine as we don't actually need pager
|
|
// query; we've already been doing most of what it does, and we
|
|
// just need to do a little more playing with globals.
|
|
if (!empty($this->pager['use_pager']) || !empty($this->get_total_rows)) {
|
|
$this->total_rows = db_result(db_query($count_query, $args)) - $this->pager['offset'];
|
|
}
|
|
|
|
$this->synchronize_pager();
|
|
$offset = $this->pager['current_page'] * $this->pager['items_per_page'] + $this->pager['offset'];
|
|
$result = db_query_range($query, $args, $offset, $this->pager['items_per_page']);
|
|
|
|
}
|
|
else {
|
|
$result = db_query($query, $args);
|
|
}
|
|
|
|
$this->result = array();
|
|
while ($item = db_fetch_object($result)) {
|
|
$this->result[] = $item;
|
|
}
|
|
|
|
// If we already know how many items we have even if we did not run the
|
|
// count query, go ahead and set that value:
|
|
if (empty($this->pager['items_per_page'])) {
|
|
$this->total_rows = count($this->result);
|
|
}
|
|
|
|
if (!empty($external)) {
|
|
db_set_active();
|
|
}
|
|
$this->execute_time = views_microtime() - $start;
|
|
}
|
|
if ($cache) {
|
|
$cache->cache_set('results');
|
|
}
|
|
}
|
|
|
|
// Let modules modify the view just after executing it.
|
|
foreach (module_implements('views_post_execute') as $module) {
|
|
$function = $module . '_views_post_execute';
|
|
$function($this);
|
|
}
|
|
|
|
$this->executed = TRUE;
|
|
}
|
|
|
|
/**
|
|
* Render this view for display.
|
|
*/
|
|
function render($display_id = NULL) {
|
|
$this->execute($display_id);
|
|
|
|
// Check to see if the build failed.
|
|
if (!empty($this->build_info['fail'])) {
|
|
return;
|
|
}
|
|
|
|
init_theme();
|
|
|
|
$start = views_microtime();
|
|
if (!empty($this->live_preview) && variable_get('views_show_additional_queries', FALSE)) {
|
|
$this->start_query_capture();
|
|
}
|
|
|
|
// Check for already-cached output.
|
|
if (!empty($this->live_preview)) {
|
|
$cache = FALSE;
|
|
}
|
|
else {
|
|
$cache = $this->display_handler->get_cache_plugin();
|
|
}
|
|
if ($cache && $cache->cache_get('output')) {
|
|
vpr('Used cached output');
|
|
}
|
|
else {
|
|
if ($cache) {
|
|
$cache->cache_start();
|
|
}
|
|
|
|
// Initialize the style plugin.
|
|
$this->init_style();
|
|
|
|
$this->style_plugin->pre_render($this->result);
|
|
|
|
// Let modules modify the view just prior to rendering it.
|
|
foreach (module_implements('views_pre_render') as $module) {
|
|
$function = $module . '_views_pre_render';
|
|
$function($this);
|
|
}
|
|
|
|
// Let the theme play too, because pre render is a very themey thing.
|
|
$function = $GLOBALS['theme'] . '_views_pre_render';
|
|
if (function_exists($function)) {
|
|
$function($this);
|
|
}
|
|
|
|
// Give field handlers the opportunity to perform additional queries
|
|
// using the entire resultset prior to rendering.
|
|
if ($this->style_plugin->uses_fields()) {
|
|
foreach ($this->field as $id => $handler) {
|
|
if (!empty($this->field[$id])) {
|
|
$this->field[$id]->pre_render($this->result);
|
|
}
|
|
}
|
|
}
|
|
$this->display_handler->output = $this->display_handler->render();
|
|
if ($cache) {
|
|
$cache->cache_set('output');
|
|
}
|
|
}
|
|
|
|
if ($cache) {
|
|
$cache->post_render($this->display_handler->output);
|
|
}
|
|
|
|
// Let modules modify the view output after it is rendered.
|
|
foreach (module_implements('views_post_render') as $module) {
|
|
$function = $module . '_views_post_render';
|
|
$function($this, $this->display_handler->output, $cache);
|
|
}
|
|
|
|
// Let the theme play too, because post render is a very themey thing.
|
|
$function = $GLOBALS['theme'] . '_views_post_render';
|
|
if (function_exists($function)) {
|
|
$function($this, $this->display_handler->output, $cache);
|
|
}
|
|
|
|
if (!empty($this->live_preview) && variable_get('views_show_additional_queries', FALSE)) {
|
|
$this->end_query_capture();
|
|
}
|
|
$this->render_time = views_microtime() - $start;
|
|
|
|
return $this->display_handler->output;
|
|
}
|
|
|
|
/**
|
|
* Render a specific field via the field ID and the row #.
|
|
*/
|
|
function render_field($field, $row) {
|
|
if (isset($this->field[$field]) && isset($this->result[$row])) {
|
|
return $this->field[$field]->advanced_render($this->result[$row]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Execute the given display, with the given arguments.
|
|
* To be called externally by whatever mechanism invokes the view,
|
|
* such as a page callback, hook_block, etc.
|
|
*
|
|
* This function should NOT be used by anything external as this
|
|
* returns data in the format specified by the display. It can also
|
|
* have other side effects that are only intended for the 'proper'
|
|
* use of the display, such as setting page titles and breadcrumbs.
|
|
*
|
|
* If you simply want to view the display, use view::preview() instead.
|
|
*/
|
|
function execute_display($display_id = NULL, $args = array()) {
|
|
if (empty($this->current_display) || $this->current_display != $this->choose_display($display_id)) {
|
|
if (!$this->set_display($display_id)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
$this->pre_execute($args);
|
|
|
|
// Execute the view
|
|
$output = $this->display_handler->execute();
|
|
|
|
$this->post_execute();
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Preview the given display, with the given arguments.
|
|
*
|
|
* To be called externally, probably by an AJAX handler of some flavor.
|
|
* Can also be called when views are embedded, as this guarantees
|
|
* normalized output.
|
|
*/
|
|
function preview($display_id = NULL, $args = array()) {
|
|
if (empty($this->current_display) || ((!empty($display_id)) && $this->current_display != $display_id)) {
|
|
if (!$this->set_display($display_id)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
$this->preview = TRUE;
|
|
$this->pre_execute($args);
|
|
// Preview the view.
|
|
$output = $this->display_handler->preview();
|
|
|
|
$this->post_execute();
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Run attachments and let the display do what it needs to do prior
|
|
* to running.
|
|
*/
|
|
function pre_execute($args = array()) {
|
|
$this->old_view[] = views_get_current_view();
|
|
views_set_current_view($this);
|
|
$display_id = $this->current_display;
|
|
|
|
// Let modules modify the view just prior to executing it.
|
|
foreach (module_implements('views_pre_view') as $module) {
|
|
$function = $module . '_views_pre_view';
|
|
$function($this, $display_id, $args);
|
|
}
|
|
|
|
// Prepare the view with the information we have, but only if we were
|
|
// passed arguments, as they may have been set previously.
|
|
if ($args) {
|
|
$this->set_arguments($args);
|
|
}
|
|
|
|
// $this->attach_displays();
|
|
|
|
// Allow the display handler to set up for execution
|
|
$this->display_handler->pre_execute();
|
|
}
|
|
|
|
/**
|
|
* Unset the current view, mostly.
|
|
*/
|
|
function post_execute() {
|
|
// unset current view so we can be properly destructed later on.
|
|
// Return the previous value in case we're an attachment.
|
|
|
|
if ($this->old_view) {
|
|
$old_view = array_pop($this->old_view);
|
|
}
|
|
|
|
views_set_current_view(isset($old_view) ? $old_view : FALSE);
|
|
}
|
|
|
|
/**
|
|
* Run attachment displays for the view.
|
|
*/
|
|
function attach_displays() {
|
|
if (!empty($this->is_attachment)) {
|
|
return;
|
|
}
|
|
|
|
if (!$this->display_handler->accept_attachments()) {
|
|
return;
|
|
}
|
|
|
|
$this->is_attachment = TRUE;
|
|
// Give other displays an opportunity to attach to the view.
|
|
foreach ($this->display as $id => $display) {
|
|
if (!empty($this->display[$id]->handler)) {
|
|
$this->display[$id]->handler->attach_to($this->current_display);
|
|
}
|
|
}
|
|
$this->is_attachment = FALSE;
|
|
}
|
|
|
|
/**
|
|
* Called to get hook_menu() information from the view and the named display handler.
|
|
*
|
|
* @param $display_id
|
|
* A display id.
|
|
* @param $callbacks
|
|
* A menu callback array passed from views_menu_alter().
|
|
*/
|
|
function execute_hook_menu($display_id = NULL, $callbacks = array()) {
|
|
// Prepare the view with the information we have.
|
|
|
|
// This was probably already called, but it's good to be safe.
|
|
if (!$this->set_display($display_id)) {
|
|
return FALSE;
|
|
}
|
|
|
|
// Execute the view
|
|
if (isset($this->display_handler)) {
|
|
return $this->display_handler->execute_hook_menu($callbacks);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Called to get hook_block information from the view and the
|
|
* named display handler.
|
|
*/
|
|
function execute_hook_block($display_id = NULL) {
|
|
// Prepare the view with the information we have.
|
|
|
|
// This was probably already called, but it's good to be safe.
|
|
if (!$this->set_display($display_id)) {
|
|
return FALSE;
|
|
}
|
|
|
|
// Execute the view
|
|
if (isset($this->display_handler)) {
|
|
return $this->display_handler->execute_hook_block();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Determine if the given user has access to the view. Note that
|
|
* this sets the display handler if it hasn't been.
|
|
*/
|
|
function access($displays = NULL, $account = NULL) {
|
|
// Noone should have access to disabled views.
|
|
if (!empty($this->disabled)) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!isset($this->current_display)) {
|
|
$this->init_display();
|
|
}
|
|
|
|
if (!$account) {
|
|
$account = $GLOBALS['user'];
|
|
}
|
|
|
|
// We can't use choose_display() here because that function
|
|
// calls this one.
|
|
$displays = (array)$displays;
|
|
foreach ($displays as $display_id) {
|
|
if (!empty($this->display[$display_id]->handler)) {
|
|
if ($this->display[$display_id]->handler->access($account)) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* Get the view's current title. This can change depending upon how it
|
|
* was built.
|
|
*/
|
|
function get_title() {
|
|
if (empty($this->display_handler)) {
|
|
if (!$this->set_display('default')) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
// During building, we might find a title override. If so, use it.
|
|
if (!empty($this->build_info['title'])) {
|
|
$title = $this->build_info['title'];
|
|
}
|
|
else {
|
|
$title = $this->display_handler->get_option('title');
|
|
}
|
|
|
|
return $title;
|
|
}
|
|
|
|
/**
|
|
* Force the view to build a title.
|
|
*/
|
|
function build_title() {
|
|
$this->init_display();
|
|
if (empty($this->built)) {
|
|
$this->init_query();
|
|
}
|
|
$this->init_handlers();
|
|
|
|
$this->_build_arguments();
|
|
}
|
|
|
|
/**
|
|
* Get the URL for the current view.
|
|
*
|
|
* This URL will be adjusted for arguments.
|
|
*/
|
|
function get_url($args = NULL, $path = NULL) {
|
|
if (!isset($path)) {
|
|
$path = $this->get_path();
|
|
}
|
|
if (!isset($args)) {
|
|
$args = $this->args;
|
|
}
|
|
// Don't bother working if there's nothing to do:
|
|
if (empty($path) || (empty($args) && strpos($path, '%') === FALSE)) {
|
|
return $path;
|
|
}
|
|
|
|
$pieces = array();
|
|
$arguments = isset($arguments) ? $arguments : $this->display_handler->get_option('arguments');
|
|
$argument_keys = isset($arguments) ? array_keys($arguments) : array();
|
|
$id = current($argument_keys);
|
|
foreach (explode('/', $path) as $piece) {
|
|
if ($piece != '%') {
|
|
$pieces[] = $piece;
|
|
}
|
|
else {
|
|
if (empty($args)) {
|
|
// Try to never put % in a url; use the wildcard instead.
|
|
if ($id && !empty($arguments[$id]['wildcard'])) {
|
|
$pieces[] = $arguments[$id]['wildcard'];
|
|
}
|
|
else {
|
|
$pieces[] = '*'; // gotta put something if there just isn't one.
|
|
}
|
|
|
|
}
|
|
else {
|
|
$pieces[] = array_shift($args);
|
|
}
|
|
|
|
if ($id) {
|
|
$id = next($argument_keys);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!empty($args)) {
|
|
$pieces = array_merge($pieces, $args);
|
|
}
|
|
return implode('/', $pieces);
|
|
}
|
|
|
|
/**
|
|
* Get the base path used for this view.
|
|
*/
|
|
function get_path() {
|
|
if (!empty($this->override_path)) {
|
|
return $this->override_path;
|
|
}
|
|
|
|
if (empty($this->display_handler)) {
|
|
if (!$this->set_display('default')) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
return $this->display_handler->get_path();
|
|
}
|
|
|
|
/**
|
|
* Get the breadcrumb used for this view.
|
|
*
|
|
* @param $set
|
|
* If true, use drupal_set_breadcrumb() to install the breadcrumb.
|
|
*/
|
|
function get_breadcrumb($set = FALSE) {
|
|
// Now that we've built the view, extract the breadcrumb.
|
|
$base = TRUE;
|
|
$breadcrumb = array();
|
|
|
|
if (!empty($this->build_info['breadcrumb'])) {
|
|
foreach ($this->build_info['breadcrumb'] as $path => $title) {
|
|
// Check to see if the frontpage is in the breadcrumb trail; if it
|
|
// is, we'll remove that from the actual breadcrumb later.
|
|
if ($path == variable_get('site_frontpage', 'node')) {
|
|
$base = FALSE;
|
|
$title = t('Home');
|
|
}
|
|
if ($title) {
|
|
$breadcrumb[] = l($title, $path, array('html' => true));
|
|
}
|
|
}
|
|
|
|
if ($set) {
|
|
if ($base) {
|
|
$breadcrumb = array_merge(drupal_get_breadcrumb(), $breadcrumb);
|
|
}
|
|
drupal_set_breadcrumb($breadcrumb);
|
|
}
|
|
}
|
|
return $breadcrumb;
|
|
}
|
|
|
|
/**
|
|
* Is this view cacheable?
|
|
*/
|
|
function is_cacheable() {
|
|
return $this->is_cacheable;
|
|
}
|
|
|
|
/**
|
|
* Set up query capturing.
|
|
*
|
|
* db_query() stores the queries that it runs in global $queries,
|
|
* bit only if dev_query is set to true. In this case, we want
|
|
* to temporarily override that setting if it's not and we
|
|
* can do that without forcing a db rewrite by just manipulating
|
|
* $conf. This is kind of evil but it works.
|
|
*/
|
|
function start_query_capture() {
|
|
global $conf, $queries;
|
|
if (empty($conf['dev_query'])) {
|
|
$this->fix_dev_query = TRUE;
|
|
$conf['dev_query'] = TRUE;
|
|
}
|
|
|
|
// Record the last query key used; anything already run isn't
|
|
// a query that we are interested in.
|
|
$this->last_query_key = NULL;
|
|
|
|
if (!empty($queries)) {
|
|
$keys = array_keys($queries);
|
|
$this->last_query_key = array_pop($keys);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add the list of queries run during render to buildinfo.
|
|
*
|
|
* @see view::start_query_capture()
|
|
*/
|
|
function end_query_capture() {
|
|
global $conf, $queries;
|
|
if (!empty($this->fix_dev_query)) {
|
|
$conf['dev_query'] = FALSE;
|
|
}
|
|
|
|
// make a copy of the array so we can manipulate it with array_splice.
|
|
$temp = $queries;
|
|
|
|
// Scroll through the queries until we get to our last query key.
|
|
// Unset anything in our temp array.
|
|
if (isset($this->last_query_key)) {
|
|
while (list($id, $query) = each($queries)) {
|
|
if ($id == $this->last_query_key) {
|
|
break;
|
|
}
|
|
|
|
unset($temp[$id]);
|
|
}
|
|
}
|
|
|
|
$this->additional_queries = $temp;
|
|
}
|
|
|
|
/**
|
|
* Load a view from the database based upon either vid or name.
|
|
*
|
|
* This is a static factory method that implements internal caching for
|
|
* view objects.
|
|
*
|
|
* @param $arg
|
|
* The name of the view or its internal view id (vid)
|
|
* @param $reset
|
|
* If TRUE, reset this entry in the load cache.
|
|
* @return A view object or NULL if it was not available.
|
|
*/
|
|
public static function &load($arg, $reset = FALSE) {
|
|
static $cache = array();
|
|
|
|
// We want a NULL value to return TRUE here, so we can't use isset() or empty().
|
|
if (!array_key_exists($arg, $cache) || $reset) {
|
|
$where = (is_numeric($arg) ? "vid = %d" : "name = '%s'");
|
|
$data = db_fetch_object(db_query("SELECT * FROM {views_view} WHERE $where", $arg));
|
|
if (empty($data)) {
|
|
$cache[$arg] = NULL;
|
|
}
|
|
else {
|
|
$view = new view();
|
|
$view->load_row($data);
|
|
$view->type = t('Normal');
|
|
// Load all of our subtables.
|
|
foreach ($view->db_objects() as $key) {
|
|
$object_name = "views_$key";
|
|
$result = db_query("SELECT * FROM {{$object_name}} WHERE vid = %d ORDER BY position", $view->vid);
|
|
|
|
while ($data = db_fetch_object($result)) {
|
|
$object = new $object_name(FALSE);
|
|
$object->load_row($data);
|
|
|
|
// Because it can get complicated with this much indirection,
|
|
// make a shortcut reference.
|
|
$location = &$view->$key;
|
|
|
|
// If we have a basic id field, load the item onto the view based on
|
|
// this ID, otherwise push it on.
|
|
if (!empty($object->id)) {
|
|
$location[$object->id] = $object;
|
|
}
|
|
else {
|
|
$location[] = $object;
|
|
}
|
|
}
|
|
}
|
|
|
|
$view->loaded = TRUE;
|
|
$cache[$arg] = $view;
|
|
}
|
|
}
|
|
|
|
return $cache[$arg];
|
|
}
|
|
|
|
/**
|
|
* Static factory method to load a list of views based upon a $where clause.
|
|
*
|
|
* Although this method could be implemented to simply iterate over views::load(),
|
|
* that would be very slow. Buiding the views externally from unified queries is
|
|
* much faster.
|
|
*/
|
|
public static function load_views() {
|
|
$result = db_query("SELECT DISTINCT v.* FROM {views_view} v");
|
|
$views = array();
|
|
$vids = array();
|
|
|
|
// Load all the views.
|
|
while ($data = db_fetch_object($result)) {
|
|
$view = new view;
|
|
$view->load_row($data);
|
|
$view->loaded = TRUE;
|
|
$view->type = t('Normal');
|
|
$views[$view->name] = $view;
|
|
$names[$view->vid] = $view->name;
|
|
}
|
|
|
|
// Stop if we didn't get any views.
|
|
if (!$views) {
|
|
return array();
|
|
}
|
|
|
|
$vids = implode(', ', array_keys($names));
|
|
// Now load all the subtables:
|
|
foreach (view::db_objects() as $key) {
|
|
$object_name = "views_$key";
|
|
$result = db_query("SELECT * FROM {{$object_name}} WHERE vid IN ($vids) ORDER BY vid, position");
|
|
|
|
while ($data = db_fetch_object($result)) {
|
|
$object = new $object_name(FALSE);
|
|
$object->load_row($data);
|
|
|
|
// Because it can get complicated with this much indirection,
|
|
// make a shortcut reference.
|
|
$location = &$views[$names[$object->vid]]->$key;
|
|
|
|
// If we have a basic id field, load the item onto the view based on
|
|
// this ID, otherwise push it on.
|
|
if (!empty($object->id)) {
|
|
$location[$object->id] = $object;
|
|
}
|
|
else {
|
|
$location[] = $object;
|
|
}
|
|
}
|
|
}
|
|
return $views;
|
|
}
|
|
|
|
/**
|
|
* Save the view to the database. If the view does not already exist,
|
|
* A vid will be assigned to the view and also returned from this function.
|
|
*/
|
|
function save() {
|
|
if ($this->vid == 'new') {
|
|
$this->vid = NULL;
|
|
}
|
|
|
|
// If we have no vid or our vid is a string, this is a new view.
|
|
if (!empty($this->vid)) {
|
|
// remove existing table entries
|
|
foreach ($this->db_objects() as $key) {
|
|
db_query("DELETE from {views_" . $key . "} WHERE vid = %d", $this->vid);
|
|
}
|
|
}
|
|
|
|
$this->save_row(!empty($this->vid) ? 'vid' : FALSE);
|
|
|
|
// Save all of our subtables.
|
|
foreach ($this->db_objects() as $key) {
|
|
$this->_save_rows($key);
|
|
}
|
|
|
|
cache_clear_all('views_urls', 'cache_views');
|
|
cache_clear_all(); // clear the page cache as well.
|
|
}
|
|
|
|
/**
|
|
* Save a row to the database for the given key, which is one of the
|
|
* keys from view::db_objects()
|
|
*/
|
|
function _save_rows($key) {
|
|
$count = 0;
|
|
foreach ($this->$key as $position => $object) {
|
|
$object->position = ++$count;
|
|
$object->vid = $this->vid;
|
|
$object->save_row();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Delete the view from the database.
|
|
*/
|
|
function delete($clear = TRUE) {
|
|
if (empty($this->vid)) {
|
|
return;
|
|
}
|
|
|
|
db_query("DELETE FROM {views_view} WHERE vid = %d", $this->vid);
|
|
// Delete from all of our subtables as well.
|
|
foreach ($this->db_objects() as $key) {
|
|
db_query("DELETE from {views_" . $key . "} WHERE vid = %d", $this->vid);
|
|
}
|
|
|
|
cache_clear_all('views_query:' . $this->name, 'cache_views');
|
|
|
|
if ($clear) {
|
|
cache_clear_all(); // this clears the block and page caches only.
|
|
menu_rebuild(); // force a menu rebuild when a view is deleted.
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Export a view as PHP code.
|
|
*/
|
|
function export($indent = '') {
|
|
$this->init_display();
|
|
$output = '';
|
|
$output .= $this->export_row('view', $indent);
|
|
// Set the API version
|
|
$output .= $indent . '$view->api_version = \'' . views_api_version() . "';\n";
|
|
$output .= $indent . '$view->disabled = FALSE; /* Edit this to true to make a default view disabled initially */' . "\n";
|
|
|
|
foreach ($this->display as $id => $display) {
|
|
$output .= $indent . '$handler = $view->new_display(' . views_var_export($display->display_plugin, $indent) . ', ' . views_var_export($display->display_title, $indent) . ', \'' . $id . "');\n";
|
|
if (empty($display->handler)) {
|
|
// @todo -- probably need a method of exporting broken displays as
|
|
// they may simply be broken because a module is not installed. That
|
|
// does not invalidate the display.
|
|
continue;
|
|
}
|
|
|
|
foreach ($display->handler->option_definition() as $option => $definition) {
|
|
// Special handling for some items
|
|
switch ($option) {
|
|
case 'defaults':
|
|
// skip these
|
|
break;
|
|
default:
|
|
if (!$display->handler->is_defaulted($option)) {
|
|
$value = $display->handler->get_option($option);
|
|
if ($id == 'default') {
|
|
$default = isset($definition['default']) ? $definition['default'] : NULL;
|
|
}
|
|
else {
|
|
$default = $this->display['default']->handler->get_option($option);
|
|
}
|
|
|
|
if ($value !== $default) {
|
|
$output .= $indent . '$handler->override_option(\'' . $option . '\', ' . views_var_export($value, $indent) . ");\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Make a copy of this view that has been sanitized of all database IDs
|
|
* and handlers and other stuff.
|
|
*
|
|
* I'd call this clone() but it's reserved.
|
|
*/
|
|
function copy() {
|
|
$code = $this->export();
|
|
eval($code);
|
|
return $view;
|
|
}
|
|
|
|
/**
|
|
* Safely clone a view.
|
|
*
|
|
* Because views are complicated objects within objects, and PHP loves to
|
|
* do references to everything, if a View is not properly and safely
|
|
* cloned it will still have references to the original view, and can
|
|
* actually cause the original view to point to objects in the cloned
|
|
* view. This gets ugly fast.
|
|
*
|
|
* This will completely wipe a view clean so it can be considered fresh.
|
|
*/
|
|
function clone_view() {
|
|
$clone = version_compare(phpversion(), '5.0') < 0 ? $this : clone($this);
|
|
|
|
$keys = array('current_display', 'display_handler', 'build_info', 'built', 'executed', 'attachment_before', 'attachment_after', 'field', 'argument', 'filter', 'sort', 'relationship', 'query', 'inited', 'style_plugin', 'plugin_name', 'exposed_data', 'exposed_input', 'exposed_widgets', 'many_to_one_tables', 'feed_icon');
|
|
foreach ($keys as $key) {
|
|
if (isset($clone->$key)) {
|
|
unset($clone->$key);
|
|
}
|
|
}
|
|
$clone->built = $clone->executed = FALSE;
|
|
$clone->build_info = array();
|
|
$clone->attachment_before = '';
|
|
$clone->attachment_after = '';
|
|
$clone->result = array();
|
|
|
|
// shallow cloning means that all the display objects
|
|
// *were not cloned*. We must clone them ourselves.
|
|
$displays = array();
|
|
foreach ($clone->display as $id => $display) {
|
|
$displays[$id] = drupal_clone($display);
|
|
if (isset($displays[$id]->handler)) {
|
|
unset($displays[$id]->handler);
|
|
}
|
|
}
|
|
$clone->display = $displays;
|
|
|
|
return $clone;
|
|
}
|
|
|
|
/**
|
|
* Unset references so that a $view object may be properly garbage
|
|
* collected.
|
|
*/
|
|
function destroy() {
|
|
foreach (array_keys($this->display) as $display_id) {
|
|
if (isset($this->display[$display_id]->handler)) {
|
|
$this->display[$display_id]->handler->destroy();
|
|
unset($this->display[$display_id]->handler);
|
|
}
|
|
}
|
|
|
|
foreach (views_object_types() as $type => $info) {
|
|
if (isset($this->$type)) {
|
|
$handlers = &$this->$type;
|
|
foreach ($handlers as $id => $item) {
|
|
$handlers[$id]->destroy();
|
|
}
|
|
unset($handlers);
|
|
}
|
|
}
|
|
|
|
if (isset($this->style_plugin)) {
|
|
$this->style_plugin->destroy();
|
|
unset($this->style_plugin);
|
|
}
|
|
|
|
// Clear these to make sure the view can be processed/used again.
|
|
if (isset($this->display_handler)) {
|
|
unset($this->display_handler);
|
|
}
|
|
|
|
if (isset($this->current_display)) {
|
|
unset($this->current_display);
|
|
}
|
|
|
|
if (isset($this->query)) {
|
|
unset($this->query);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Make sure the view is completely valid.
|
|
*
|
|
* @return
|
|
* TRUE if the view is valid; an array of error strings if it is not.
|
|
*/
|
|
function validate() {
|
|
$this->init_display();
|
|
|
|
$errors = array();
|
|
|
|
$current_display = $this->current_display;
|
|
foreach ($this->display as $id => $display) {
|
|
if ($display->handler) {
|
|
if (!empty($display->deleted)) {
|
|
continue;
|
|
}
|
|
$this->set_display($id);
|
|
|
|
$result = $this->display[$id]->handler->validate();
|
|
if (!empty($result) && is_array($result)) {
|
|
$errors = array_merge($errors, $result);
|
|
}
|
|
}
|
|
}
|
|
|
|
$this->set_display($current_display);
|
|
return $errors ? $errors : TRUE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Base class for views' database objects.
|
|
*/
|
|
class views_db_object {
|
|
/**
|
|
* Initialize this object, setting values from schema defaults.
|
|
*
|
|
* @param $init
|
|
* If an array, this is a set of values from db_fetch_object to
|
|
* load. Otherwse, if TRUE values will be filled in from schema
|
|
* defaults.
|
|
*/
|
|
function init($init = TRUE) {
|
|
if (is_array($init)) {
|
|
return $this->load_row($init);
|
|
}
|
|
|
|
if (!$init) {
|
|
return;
|
|
}
|
|
|
|
$schema = drupal_get_schema($this->db_table);
|
|
|
|
if (!$schema) {
|
|
return;
|
|
}
|
|
|
|
// Go through our schema and build correlations.
|
|
foreach ($schema['fields'] as $field => $info) {
|
|
if ($info['type'] == 'serial') {
|
|
$this->$field = NULL;
|
|
}
|
|
if (!isset($this->$field)) {
|
|
if (!empty($info['serialize']) && isset($info['serialized default'])) {
|
|
$this->$field = unserialize($info['serialized default']);
|
|
}
|
|
else if (isset($info['default'])) {
|
|
$this->$field = $info['default'];
|
|
}
|
|
else {
|
|
$this->$field = '';
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Write the row to the database.
|
|
*
|
|
* @param $update
|
|
* If true this will be an UPDATE query. Otherwise it will be an INSERT.
|
|
*/
|
|
function save_row($update = NULL) {
|
|
$schema = drupal_get_schema($this->db_table);
|
|
$fields = $defs = $values = $serials = array();
|
|
|
|
// Go through our schema and build correlations.
|
|
foreach ($schema['fields'] as $field => $info) {
|
|
// special case -- skip serial types if we are updating.
|
|
if ($info['type'] == 'serial') {
|
|
$serials[] = $field;
|
|
continue;
|
|
}
|
|
$fields[] = $field;
|
|
switch ($info['type']) {
|
|
case 'blob':
|
|
$defs[] = '%b';
|
|
break;
|
|
case 'int':
|
|
$defs[] = '%d';
|
|
break;
|
|
case 'float':
|
|
case 'numeric':
|
|
$defs[] = '%f';
|
|
break;
|
|
default:
|
|
$defs[] = "'%s'";
|
|
}
|
|
if (empty($info['serialize'])) {
|
|
$values[] = $this->$field;
|
|
}
|
|
else {
|
|
$values[] = serialize($this->$field);
|
|
}
|
|
}
|
|
$query = '';
|
|
if (!$update) {
|
|
$query = "INSERT INTO {" . $this->db_table . "} (" . implode(', ', $fields) . ') VALUES (' . implode(', ', $defs) . ')';
|
|
}
|
|
else {
|
|
$query = '';
|
|
foreach ($fields as $id => $field) {
|
|
if ($query) {
|
|
$query .= ', ';
|
|
}
|
|
$query .= $field . ' = ' . $defs[$id];
|
|
}
|
|
$query = "UPDATE {" . $this->db_table . "} SET " . $query . " WHERE $update = " . $this->$update;
|
|
}
|
|
db_query($query, $values);
|
|
|
|
if ($serials && !$update) {
|
|
// get last insert ids and fill them in.
|
|
foreach ($serials as $field) {
|
|
$this->$field = db_last_insert_id($this->db_table, $field);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Load the object with a row from the database.
|
|
*
|
|
* This method is separate from the constructor in order to give us
|
|
* more flexibility in terms of how the view object is built in different
|
|
* contexts.
|
|
*
|
|
* @param $data
|
|
* An object from db_fetch_object. It should contain all of the fields
|
|
* that are in the schema.
|
|
*/
|
|
function load_row($data) {
|
|
$schema = drupal_get_schema($this->db_table);
|
|
|
|
// Go through our schema and build correlations.
|
|
foreach ($schema['fields'] as $field => $info) {
|
|
$this->$field = empty($info['serialize']) ? $data->$field : unserialize(db_decode_blob($data->$field));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Export a loaded row, such as an argument, field or the view itself to PHP code.
|
|
*
|
|
* @param $identifier
|
|
* The variable to assign the PHP code for this object to.
|
|
* @param $indent
|
|
* An optional indentation for prettifying nested code.
|
|
*/
|
|
function export_row($identifier = NULL, $indent = '') {
|
|
if (!$identifier) {
|
|
$identifier = $this->db_table;
|
|
}
|
|
$schema = drupal_get_schema($this->db_table);
|
|
|
|
$output = $indent . '$' . $identifier . ' = new ' . get_class($this) . ";\n";
|
|
// Go through our schema and build correlations.
|
|
foreach ($schema['fields'] as $field => $info) {
|
|
if (!empty($info['no export'])) {
|
|
continue;
|
|
}
|
|
if (!isset($this->$field)) {
|
|
if (isset($info['default'])) {
|
|
$this->$field = $info['default'];
|
|
}
|
|
else {
|
|
$this->$field = '';
|
|
}
|
|
|
|
// serialized defaults must be set as serialized.
|
|
if (isset($info['serialize'])) {
|
|
$this->$field = unserialize(db_decode_blob($this->$field));
|
|
}
|
|
}
|
|
$value = $this->$field;
|
|
if ($info['type'] == 'int') {
|
|
$value = ($info['size'] == 'tiny') ? (bool) $value : (int) $value;
|
|
}
|
|
|
|
$output .= $indent . '$' . $identifier . '->' . $field . ' = ' . views_var_export($value, $indent) . ";\n";
|
|
}
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Add a new display handler to the view, automatically creating an id.
|
|
*
|
|
* @param $type
|
|
* The plugin type from the views plugin data. Defaults to 'page'.
|
|
* @param $title
|
|
* The title of the display; optional, may be filled in from default.
|
|
* @param $id
|
|
* The id to use.
|
|
* @return
|
|
* The key to the display in $view->display, so that the new display
|
|
* can be easily located.
|
|
*/
|
|
function add_display($type = 'page', $title = NULL, $id = NULL) {
|
|
if (empty($type)) {
|
|
return FALSE;
|
|
}
|
|
|
|
$plugin = views_fetch_plugin_data('display', $type);
|
|
if (empty($plugin)) {
|
|
$plugin['title'] = t('Broken');
|
|
}
|
|
|
|
|
|
if (empty($id)) {
|
|
$title = $plugin['title'];
|
|
|
|
$id = $this->generate_display_id($type);
|
|
$count = str_replace($type . '_', '', $id);
|
|
if (empty($title)) {
|
|
$title = $plugin['title'] . ' ' . $count;
|
|
}
|
|
}
|
|
|
|
// Create the new display object
|
|
$display = new views_display;
|
|
$display->options($type, $id, $title);
|
|
|
|
// Add the new display object to the view.
|
|
$this->display[$id] = $display;
|
|
return $id;
|
|
}
|
|
|
|
/**
|
|
* Generate a display id of a certain plugin type.
|
|
*
|
|
* @param $type
|
|
* Which plugin should be used for the new display id.
|
|
*/
|
|
function generate_display_id($type) {
|
|
// 'default' is singular and is unique, so just go with 'default'
|
|
// for it. For all others, start counting.
|
|
if ($type == 'default') {
|
|
return 'default';
|
|
}
|
|
// Initial id.
|
|
$id = $type . '_1';
|
|
$count = 1;
|
|
|
|
// Loop through IDs based upon our style plugin name until
|
|
// we find one that is unused.
|
|
while (!empty($this->display[$id])) {
|
|
$id = $type . '_' . ++$count;
|
|
}
|
|
|
|
return $id;
|
|
}
|
|
|
|
/**
|
|
* Create a new display and a display handler for it.
|
|
* @param $type
|
|
* The plugin type from the views plugin data. Defaults to 'page'.
|
|
* @param $title
|
|
* The title of the display; optional, may be filled in from default.
|
|
* @param $id
|
|
* The id to use.
|
|
* @return
|
|
* A reference to the new handler object.
|
|
*/
|
|
function &new_display($type = 'page', $title = NULL, $id = NULL) {
|
|
$id = $this->add_display($type, $title, $id);
|
|
|
|
// Create a handler
|
|
$this->display[$id]->handler = views_get_plugin('display', $this->display[$id]->display_plugin);
|
|
if (empty($this->display[$id]->handler)) {
|
|
// provide a 'default' handler as an emergency. This won't work well but
|
|
// it will keep things from crashing.
|
|
$this->display[$id]->handler = views_get_plugin('display', 'default');
|
|
}
|
|
|
|
if (!empty($this->display[$id]->handler)) {
|
|
// Initialize the new display handler with data.
|
|
$this->display[$id]->handler->init($this, $this->display[$id]);
|
|
// If this is NOT the default display handler, let it know which is
|
|
if ($id != 'default') {
|
|
$this->display[$id]->handler->default_display = &$this->display['default']->handler;
|
|
}
|
|
}
|
|
|
|
return $this->display[$id]->handler;
|
|
}
|
|
|
|
/**
|
|
* Add an item with a handler to the view.
|
|
*
|
|
* These items may be fields, filters, sort criteria, or arguments.
|
|
*/
|
|
function add_item($display_id, $type, $table, $field, $options = array(), $id = NULL) {
|
|
$types = views_object_types();
|
|
$this->set_display($display_id);
|
|
|
|
$fields = $this->display[$display_id]->handler->get_option($types[$type]['plural']);
|
|
|
|
if (empty($id)) {
|
|
$count = 0;
|
|
$id = $field;
|
|
while (!empty($fields[$id])) {
|
|
$id = $field . '_' . ++$count;
|
|
}
|
|
}
|
|
|
|
$new_item = array(
|
|
'id' => $id,
|
|
'table' => $table,
|
|
'field' => $field,
|
|
) + $options;
|
|
|
|
$handler = views_get_handler($table, $field, $type);
|
|
|
|
$fields[$id] = $new_item;
|
|
$this->display[$display_id]->handler->set_option($types[$type]['plural'], $fields);
|
|
|
|
return $id;
|
|
}
|
|
|
|
/**
|
|
* Get an array of items for the current display.
|
|
*/
|
|
function get_items($type, $display_id = NULL) {
|
|
$this->set_display($display_id);
|
|
|
|
if (!isset($display_id)) {
|
|
$display_id = $this->current_display;
|
|
}
|
|
|
|
// Get info about the types so we can get the right data.
|
|
$types = views_object_types();
|
|
return $this->display[$display_id]->handler->get_option($types[$type]['plural']);
|
|
}
|
|
|
|
/**
|
|
* Get the configuration of an item (field/sort/filter/etc) on a given
|
|
* display.
|
|
*/
|
|
function get_item($display_id, $type, $id) {
|
|
// Get info about the types so we can get the right data.
|
|
$types = views_object_types();
|
|
// Initialize the display
|
|
$this->set_display($display_id);
|
|
|
|
// Get the existing configuration
|
|
$fields = $this->display[$display_id]->handler->get_option($types[$type]['plural']);
|
|
|
|
return isset($fields[$id]) ? $fields[$id] : NULL;
|
|
}
|
|
|
|
/**
|
|
* Get the configuration of an item (field/sort/filter/etc) on a given
|
|
* display.
|
|
*
|
|
* Pass in NULL for the $item to remove an item.
|
|
*/
|
|
function set_item($display_id, $type, $id, $item) {
|
|
// Get info about the types so we can get the right data.
|
|
$types = views_object_types();
|
|
// Initialize the display
|
|
$this->set_display($display_id);
|
|
|
|
// Get the existing configuration
|
|
$fields = $this->display[$display_id]->handler->get_option($types[$type]['plural']);
|
|
if (isset($item)) {
|
|
$fields[$id] = $item;
|
|
}
|
|
else {
|
|
unset($fields[$id]);
|
|
}
|
|
|
|
// Store.
|
|
$this->display[$display_id]->handler->set_option($types[$type]['plural'], $fields);
|
|
}
|
|
|
|
/**
|
|
* Set an option on an item.
|
|
*
|
|
* Use this only if you have just 1 or 2 options to set; if you have
|
|
* many, consider getting the item, adding the options and doing
|
|
* set_item yourself.
|
|
*/
|
|
function set_item_option($display_id, $type, $id, $option, $value) {
|
|
$item = $this->get_item($display_id, $type, $id);
|
|
$item[$option] = $value;
|
|
$this->set_item($display_id, $type, $id, $item);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* A display type in a view.
|
|
*
|
|
* This is just the database storage mechanism, and isn't terribly important
|
|
* to the behavior of the display at all.
|
|
*/
|
|
class views_display extends views_db_object {
|
|
var $db_table = 'views_display';
|
|
function views_display($init = TRUE) {
|
|
parent::init($init);
|
|
}
|
|
|
|
function options($type, $id, $title) {
|
|
$this->display_plugin = $type;
|
|
$this->id = $id;
|
|
$this->display_title = $title;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Provide a list of views object types used in a view, with some information
|
|
* about them.
|
|
*/
|
|
function views_object_types() {
|
|
static $retval = NULL;
|
|
|
|
// statically cache this so t() doesn't run a bajillion times.
|
|
if (!isset($retval)) {
|
|
$retval = array(
|
|
'field' => array(
|
|
'title' => t('Fields'), // title
|
|
'ltitle' => t('fields'), // lowercase title for mid-sentence
|
|
'stitle' => t('Field'), // singular title
|
|
'lstitle' => t('field'), // singular lowercase title for mid sentence
|
|
'plural' => 'fields',
|
|
),
|
|
'argument' => array(
|
|
'title' => t('Arguments'),
|
|
'ltitle' => t('arguments'),
|
|
'stitle' => t('Argument'),
|
|
'lstitle' => t('Argument'),
|
|
'plural' => 'arguments',
|
|
),
|
|
'sort' => array(
|
|
'title' => t('Sort criteria'),
|
|
'ltitle' => t('sort criteria'),
|
|
'stitle' => t('Sort criterion'),
|
|
'lstitle' => t('sort criterion'),
|
|
'plural' => 'sorts',
|
|
),
|
|
'filter' => array(
|
|
'title' => t('Filters'),
|
|
'ltitle' => t('filters'),
|
|
'stitle' => t('Filter'),
|
|
'lstitle' => t('filter'),
|
|
'plural' => 'filters',
|
|
'options' => 'views_ui_config_filters_form',
|
|
),
|
|
'relationship' => array(
|
|
'title' => t('Relationships'),
|
|
'ltitle' => t('relationships'),
|
|
'stitle' => t('Relationship'),
|
|
'lstitle' => t('Relationship'),
|
|
'plural' => 'relationships',
|
|
),
|
|
);
|
|
}
|
|
|
|
return $retval;
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|