SoundSoftware Code Site

# Redmine - project management software

# Copyright (C) 2006-2014  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_filter :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_filter :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].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)

    end

    respond_to do |format|

      format.html { redirect_to_referer_or {render :text => 'Watcher added.', :layout => true}}

      format.js { @users = users_for_new_watcher }

      format.api { render_api_ok }

    end

  end

  def append

    if params[:watcher].is_a?(Hash)

      user_ids = params[:watcher][:user_ids] || [params[:watcher][:user_id]]

      @users = User.active.where(:id => user_ids).all

    end

    if @users.blank?

      render :nothing => true

    end

  end

  def destroy

    @watched.set_watcher(User.find(params[:user_id]), false)

    respond_to do |format|

      format.html { redirect_to :back }

      format.js

      format.api { render_api_ok }

    end

  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]

      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]

      @project = Project.visible.find_by_param(params[:project_id])

    end

  rescue

    render_404

  end

  def find_watchables

    klass = Object.const_get(params[:object_type].camelcase) rescue nil

    if klass && klass.respond_to?('watched_by')

      @watchables = klass.where(:id => Array.wrap(params[:object_id])).all

      raise Unauthorized if @watchables.any? {|w|

        if w.respond_to?(:visible?)

          !w.visible?

        elsif w.respond_to?(:project) && w.project

          !w.project.visible?

        end

      }

    end

    render_404 unless @watchables.present?

  end

  def set_watcher(watchables, user, watching)

    watchables.each do |watchable|

      watchable.set_watcher(user, watching)

    end

    respond_to do |format|

      format.html { redirect_to_referer_or {render :text => (watching ? 'Watcher added.' : 'Watcher removed.'), :layout => true}}

      format.js { render :partial => 'set_watcher', :locals => {:user => user, :watched => watchables} }

    end

  end

  def users_for_new_watcher

    users = []

    if params[:q].blank? && @project.present?

      users = @project.users.sorted

    else

      users = User.active.sorted.like(params[:q]).limit(100)

    end

    if @watched

      users -= @watched.watcher_users

    end

    users

  end

end