Redmine 3.4.4

app/controllers/watchers_controller.rb

@@ -0,0 +1,152 @@
+# Redmine - project management software
+# Copyright (C) 2006-2017  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class WatchersController < ApplicationController
+  before_action :require_login, :find_watchables, :only => [:watch, :unwatch]
+
+  def watch
+    set_watcher(@watchables, User.current, true)
+  end
+
+  def unwatch
+    set_watcher(@watchables, User.current, false)
+  end
+
+  before_action :find_project, :authorize, :only => [:new, :create, :append, :destroy, :autocomplete_for_user]
+  accept_api_auth :create, :destroy
+
+  def new
+    @users = users_for_new_watcher
+  end
+
+  def create
+    user_ids = []
+    if params[:watcher]
+      user_ids << (params[:watcher][:user_ids] || params[:watcher][:user_id])
+    else
+      user_ids << params[:user_id]
+    end
+    users = User.active.visible.where(:id => user_ids.flatten.compact.uniq)
+    users.each do |user|
+      @watchables.each do |watchable|
+        Watcher.create(:watchable => watchable, :user => user)
+      end
+    end
+    respond_to do |format|
+      format.html { redirect_to_referer_or {render :html => 'Watcher added.', :status => 200, :layout => true}}
+      format.js { @users = users_for_new_watcher }
+      format.api { render_api_ok }
+    end
+  end
+
+  def append
+    if params[:watcher]
+      user_ids = params[:watcher][:user_ids] || [params[:watcher][:user_id]]
+      @users = User.active.visible.where(:id => user_ids).to_a
+    end
+    if @users.blank?
+      head 200
+    end
+  end
+
+  def destroy
+    user = User.find(params[:user_id])
+    @watchables.each do |watchable|
+      watchable.set_watcher(user, false)
+    end
+    respond_to do |format|
+      format.html { redirect_to_referer_or {render :html => 'Watcher removed.', :status => 200, :layout => true} }
+      format.js
+      format.api { render_api_ok }
+    end
+  rescue ActiveRecord::RecordNotFound
+    render_404
+  end
+
+  def autocomplete_for_user
+    @users = users_for_new_watcher
+    render :layout => false
+  end
+
+  private
+
+  def find_project
+    if params[:object_type] && params[:object_id]
+      @watchables = find_objets_from_params
+      @projects = @watchables.map(&:project).uniq
+      if @projects.size == 1
+        @project = @projects.first
+      end
+    elsif params[:project_id]
+      @project = Project.visible.find_by_param(params[:project_id])
+    end
+  end
+
+  def find_watchables
+    @watchables = find_objets_from_params
+    unless @watchables.present?
+      render_404
+    end
+  end
+
+  def set_watcher(watchables, user, watching)
+    watchables.each do |watchable|
+      watchable.set_watcher(user, watching)
+    end
+    respond_to do |format|
+      format.html {
+        text = watching ? 'Watcher added.' : 'Watcher removed.'
+        redirect_to_referer_or {render :html => text, :status => 200, :layout => true}
+      }
+      format.js { render :partial => 'set_watcher', :locals => {:user => user, :watched => watchables} }
+    end
+  end
+
+  def users_for_new_watcher
+    scope = nil
+    if params[:q].blank? && @project.present?
+      scope = @project.users
+    else
+      scope = User.all.limit(100)
+    end
+    users = scope.active.visible.sorted.like(params[:q]).to_a
+    if @watchables && @watchables.size == 1
+      users -= @watchables.first.watcher_users
+    end
+    users
+  end
+
+  def find_objets_from_params
+    klass = Object.const_get(params[:object_type].camelcase) rescue nil
+    return unless klass && klass.respond_to?('watched_by')
+
+    scope = klass.where(:id => Array.wrap(params[:object_id]))
+    if klass.reflect_on_association(:project)
+      scope = scope.preload(:project => :enabled_modules)
+    end
+    objects = scope.to_a
+
+    raise Unauthorized if objects.any? do |w|
+      if w.respond_to?(:visible?)
+        !w.visible?
+      elsif w.respond_to?(:project) && w.project
+        !w.project.visible?
+      end
+    end
+    objects
+  end
+end