watchers_controller.rb 3.45 KB
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# Redmine - project management software
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# Copyright (C) 2006-2013  Jean-Philippe Lang
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#
# 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.
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#
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# 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.
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#
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# 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
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  before_filter :require_login, :find_watchables, :only => [:watch, :unwatch]
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  def watch
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    set_watcher(@watchables, User.current, true)
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  end
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  def unwatch
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    set_watcher(@watchables, User.current, false)
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  end
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  before_filter :find_project, :authorize, :only => [:new, :create, :append, :destroy, :autocomplete_for_user]
  accept_api_auth :create, :destroy

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  def new
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  end

  def create
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    user_ids = []
    if params[:watcher].is_a?(Hash)
      user_ids << (params[:watcher][:user_ids] || params[:watcher][:user_id])
    else
      user_ids << params[:user_id]
    end
    user_ids.flatten.compact.uniq.each do |user_id|
      Watcher.create(:watchable => @watched, :user_id => user_id)
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    end
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    respond_to do |format|
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      format.html { redirect_to_referer_or {render :text => 'Watcher added.', :layout => true}}
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      format.js
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      format.api { render_api_ok }
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    end
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  end
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  def append
    if params[:watcher].is_a?(Hash)
      user_ids = params[:watcher][:user_ids] || [params[:watcher][:user_id]]
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      @users = User.active.where(:id => user_ids).all
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    end
  end

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  def destroy
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    @watched.set_watcher(User.find(params[:user_id]), false)
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    respond_to do |format|
      format.html { redirect_to :back }
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      format.js
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      format.api { render_api_ok }
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    end
  end
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  def autocomplete_for_user
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    @users = User.active.sorted.like(params[:q]).limit(100).all
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    if @watched
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      @users -= @watched.watcher_users
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    end
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    render :layout => false
  end

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  private

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  def find_project
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    if params[:object_type] && params[:object_id]
      klass = Object.const_get(params[:object_type].camelcase)
      return false unless klass.respond_to?('watched_by')
      @watched = klass.find(params[:object_id])
      @project = @watched.project
    elsif params[:project_id]
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      @project = Project.visible.find_by_param(params[:project_id])
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    end
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  rescue
    render_404
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  end
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  def find_watchables
    klass = Object.const_get(params[:object_type].camelcase) rescue nil
    if klass && klass.respond_to?('watched_by')
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      @watchables = klass.where(:id => Array.wrap(params[:object_id])).all
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      raise Unauthorized if @watchables.any? {|w| w.respond_to?(:visible?) && !w.visible?}
    end
    render_404 unless @watchables.present?
  end

  def set_watcher(watchables, user, watching)
    watchables.each do |watchable|
      watchable.set_watcher(user, watching)
    end
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    respond_to do |format|
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      format.html { redirect_to_referer_or {render :text => (watching ? 'Watcher added.' : 'Watcher removed.'), :layout => true}}
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      format.js { render :partial => 'set_watcher', :locals => {:user => user, :watched => watchables} }
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    end
  end
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end