# Redmine - project management software
# Copyright (C) 2006-2013  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 ProjectsController < ApplicationController
  # if @project.project_type == 1
  layout 'base_projects'# by young
  menu_item :overview
  menu_item :roadmap, :only => :roadmap
  menu_item :settings, :only => :settings
  
  menu_item l(:label_sort_by_time), :only => :index
  menu_item l(:label_sort_by_active), :only => :index
  menu_item l(:label_sort_by_influence), :only => :index
  
  # menu_item l(:label_homework), :only => :homework
  # menu_item l(:label_course_feedback), :only => :feedback
  menu_item :homework, :only => :homework
  menu_item :feedback, :only => :feedback
  menu_item l(:label_course_file), :only => :index
  menu_item l(:label_course_news), :only => :index
  # end
  
  
  # layout 'base_courses'# by young
  # menu_item :overview
  # menu_item l(:label_homework), :only => :homework
  # menu_item :files, :only => :files
#   
  # layout 'base_courses'
  # menu_item l(:label_homework), :only => homework
  # menu_item l(:label_course_file), :only => files  
  # menu_item l(:label_settings), :only => settings

  before_filter :find_project, :except => [ :index, :search,:list, :new, :create, :copy, :statistics, :new_join, :course, :enterprise_course, :course_enterprise]
  before_filter :authorize, :except => [:new_join, :new_homework, :homework, :statistics, :search, :watcherlist, :index, :list, :new, :create, :copy, :archive, :unarchive, :destroy, :member, :focus, :file, 
                :statistics, :feedback, :course, :enterprise_course, :course_enterprise, :project_respond, :share]
  before_filter :authorize_global, :only => [:new, :create]
  before_filter :require_admin, :only => [ :copy, :archive, :unarchive, :destroy, :calendar]
  #by young
  # before_filter :member, :file, :statistics, :watcherlist
  # modified by fq
  before_filter :file, :statistics, :watcherlist
  #
  accept_rss_auth :index
  accept_api_auth :index, :show, :create, :update, :destroy

  after_filter :only => [:create, :edit, :update, :archive, :unarchive, :destroy] do |controller|
    if controller.request.post?
      controller.send :expire_action, :controller => 'welcome', :action => 'robots'
    end
  end

  helper :bids
  include BidsHelper
  helper :sort
  include SortHelper
  helper :custom_fields
  include CustomFieldsHelper
  helper :issues
  helper :queries
  include QueriesHelper
  helper :repositories
  include RepositoriesHelper
  include ProjectsHelper
  helper :members
  helper :activities
  helper :documents
  helper :watchers
  # helper :watcherlist

  ### added by william
  include ActsAsTaggableOn::TagsHelper

  # Lists visible projects
  #  def index
  #    respond_to do |format|
  #      format.html {
  #        scope = Project
  #        unless params[:closed]
  #          scope = scope.active
  #        end
  #        @projects = scope.visible.order('lft').all
  #      }
  #      format.api  {
  #        @offset, @limit = api_offset_and_limit
  #        @project_count = Project.visible.count
  #        @projects = Project.visible.offset(@offset).limit(@limit).order('lft').all
  #      }
  #      format.atom {
  #        projects = Project.visible.order('created_on DESC').limit(Setting.feeds_limit.to_i).all
  #        render_feed(projects, :title => "#{Setting.app_title}: #{l(:label_project_latest)}")
  #      }
  #    end
  #  end
  def enterprise_course
    session[:enterprise_college] = 2
    respond_to do |format|
      format.html { redirect_to :back }
    #format.api { render_api_ok }
    end
  end
  
  def course_enterprise
    session[:enterprise_college] = 1
    respond_to do |format|
      format.html { redirect_to :back }
    #format.api { render_api_ok }
    end
  end

  def index
    #Modified by nie
    @project_type = params[:project_type]
    @limit = 10
    @project_count = Project.visible.where("project_type = ?", 0).count
    @project_pages = Paginator.new @project_count, @limit, params['page']
    if params[:project_sort_type].present?
      case params[:project_sort_type]
      when '0'
        @projects =  @projects = Project.visible.where("project_type = ?", 0).order("created_on desc").offset(@project_pages.offset).limit(@limit).all
        @s_type = 0
      when '1'
        @projects = sort_project_demo project_type = 0, order_by="grade desc", @project_pages.offset, @limit
        @s_type = 1
      when '2'
        @projects = sort_project_demo project_type = 0, order_by="watchers_count desc", @project_pages.offset, @limit
        @s_type = 2
      end
    else
        @projects = sort_project_demo project_type = 0, order_by="grade desc", @project_pages.offset, @limit
        @s_type = 1
    end
    respond_to do |format|
      format.html {
        render :layout => 'base'
        scope = Project
        unless params[:closed]
        scope = scope.active
        end
      }
      format.api  {
      #        @offset, @limit = api_offset_and_limit
      #        @project_count = Project.visible.count
      #        @projects = Project.visible.offset(@offset).limit(@limit).order('lft').all
      }
      format.atom {
        projects = Project.visible.order('created_on DESC').limit(Setting.feeds_limit.to_i).all
        render_feed(projects, :title => "#{Setting.app_title}: #{l(:label_project_latest)}")
      }
    end
  end
  
  def course
    @project_type = params[:project_type]
    @limit = 10;
    @project_count = Project.visible.where("project_type = 1").count
    @project_pages = Paginator.new @project_count, @limit, params['page']
    if params[:project_sort_type].present?
      case params[:project_sort_type]
      when '0'
        @projects = Project.visible.where("project_type = ?", 1).order("created_on desc").offset(@project_pages.offset).limit(@limit).all
        @s_type = 0
      when '1'
        @projects =  sort_project_demo 1, "course_ac_para desc", @project_pages.offset, @limit
        @s_type = 1
      when '2'
        @projects = sort_project_demo 1, "watchers_count desc", @project_pages.offset, @limit
        @s_type = 2
      end
    else
        logger.debug("-------------------------------------------------")
        @projects = Project.visible.where("project_type = ?", 1).order("created_on desc").offset(@project_pages.offset).limit(@limit).all
        logger.debug("-------------------------------------------------")
        @s_type =  0
    end
    respond_to do |format|
      format.html {
        render :layout => 'base'
        scope = Project
        unless params[:closed]
        scope = scope.active
        end
      }
      format.api  {
      #        @offset, @limit = api_offset_and_limit
      #        @project_count = Project.visible.count
      #        @projects = Project.visible.offset(@offset).limit(@limit).order('lft').all
      }
      format.atom {
        projects = Project.visible.order('created_on DESC').limit(Setting.feeds_limit.to_i).all
        render_feed(projects, :title => "#{Setting.app_title}: #{l(:label_project_latest)}")
      }
    end
  end
  
  def sort_project_demo project_type, order_by, offset, limit
    #Project.visible.joins(:project_status).where("#{Project.table_name}.project_type = ?", project_type).order(order_by).offset(offset).limit(limit).all
    Project.visible.find_by_sql("
      SELECT *
      FROM projects AS p RIGHT OUTER JOIN (
        SELECT project_id,grade FROM project_statuses
        WHERE project_type = #{project_type} ORDER BY #{order_by} LIMIT #{limit} OFFSET #{offset}) AS t ON p.id = t.project_id ")
  end
  
   def search
    #modified by nie
    @projects = Project.visible
    @projects = @projects.visible.where('project_type = ?', params[:project_type]).like(params[:name]) if params[:name].present? 
    @offset, @limit = api_offset_and_limit({:limit => 10})
    @project_count = @projects.visible.count
    @project_pages = Paginator.new @project_count, @limit, params['page']
    @offset ||= @project_pages.offset
    @projects = @projects.visible.offset(@offset).limit(@limit).all
    respond_to do |format|
      format.html {
        render :layout => 'base'
        scope = Project
        unless params[:closed]
        scope = scope.active
        end
      }
      format.api  {
      #        @offset, @limit = api_offset_and_limit
      #        @project_count = Project.visible.count
      #        @projects = Project.visible.offset(@offset).limit(@limit).order('lft').all
      }
      format.atom {
        projects = Project.visible.order('created_on DESC').limit(Setting.feeds_limit.to_i).all
        render_feed(projects, :title => "#{Setting.app_title}: #{l(:label_project_latest)}")
      }
    end 
  end

  # added by fq
  def new_join
    @course = Project.find(params[:object_id])
  end

  #Added by young
  def homework
    @offset, @limit = api_offset_and_limit({:limit => 10})
    @bids = @project.homeworks
    @bids = @bids.like(params[:name]) if params[:name].present?
    @bid_count = @bids.count
    @bid_pages = Paginator.new @bid_count, @limit, params['page']

    @offset ||= @bid_pages.reverse_offset
    #@bids = @bids.offset(@offset).limit(@limit).all.reverse
    unless @offset == 0
      @bids = @bids.offset(@offset).limit(@limit).all.reverse
    else
      limit = @bid_count % @limit
      @bids = @bids.offset(@offset).limit(limit).all.reverse
    end
    render :layout => 'base_courses'
   
  end

  def new_homework
    if User.current.logged? && (User.current.admin? || (!Member.where('user_id = ? and project_id = ?', User.current.id, @project.id).first.nil? && (Member.where('user_id = ? and project_id = ?', User.current.id, @project.id).first.roles&Role.where('id = ? or id = ?', 3, 7)).size >0))
    @homework = Bid.new
    @homework.safe_attributes = params[:bid]
    render :layout => 'base_courses'
    else
      render_404
    end
      
  end
  #Ended by young

  def feedback
    @jours = @project.journals_for_messages.where('m_parent_id IS NULL').reverse
    @limit =  10
    @feedback_count = @jours.count
    @feedback_pages = Paginator.new @feedback_count, @limit, params['page']
    @offset ||= @feedback_pages.offset
    @jour = @jours[@offset, @limit]
    @state = false
    @base_courses_tag = @project.project_type
    respond_to do |format|
      format.html{render :layout => 'base_courses' if @base_courses_tag==1}
      format.api
    end
  end

  def project_respond
    # will_reply = JournalsForMessage.find(params[:reference_id]) if params[:reference_id]
    project_id = request.headers["Referer"].match((%r|/([0-9]{1,})/|))[1]
    @project = Project.find(project_id)
    parent_id = params[:reference_id]
    author_id = User.current.id
    reply_user_id = params[:reference_user_id]
    reply_id = params[:reference_message_id]
    content = params[:project_respond]
    options = {:user_id => author_id, 
              :m_parent_id => parent_id,
              :m_reply_id => reply_id,
              :reply_id => reply_user_id,
              :notes => content, 
              :is_readed => false}

    @jfm = @project.add_new_jour(nil, nil, nil, options)

    # flash[:notice]=l(:label_projects_feedback_respond_success)


    respond_to do |format|
      format.html { redirect_to :back }
    #format.api { render_api_ok }
    end
  end

  def new
    @project_type        = params[:project_type]
    @issue_custom_fields = IssueCustomField.sorted.all
    @trackers            = Tracker.sorted.all

    case @project_type
    when '0' # Project
      @project                 = Project.new
      @project.safe_attributes = params[:project]
    when '1' # Course
      @project                 = Project.new
      @project.safe_attributes = params[:project]
      @course_tag              = params[:course]
      @course                  = Course.new
      @course.safe_attributes  = params[:course]
    else
      render_404
      return -1
    end
    render :layout => 'base'
  end
  
  def share
    @shares = @project.shares.reverse
    @base_courses_tag = @project.project_type
    respond_to do |format|
      format.html{render :layout => 'base_courses' if @base_courses_tag==1}
      format.api
    end
  end

  def create  
       
    @course_tag = params[:project][:project_type]
    if(@course_tag=="1")
      if User.current.user_extensions.identity == 0
      @course = Course.new
      @course.extra='course' + DateTime.parse(Time.now.to_s).strftime('%Y-%m-%d_%H-%M-%S').to_s
      @course.safe_attributes = params[:project][:course]
      @course.tea_id = User.current.id
      # added by bai
      @course.term = params[:term]
      @course.time = params[:time]
      @course.setup_time = params[:setup_time]
      @course.endup_time = params[:endup_time]
      @course.class_period = params[:class_period]
      end
    end
    @issue_custom_fields = IssueCustomField.sorted.all
    @trackers = Tracker.sorted.all
    @project = Project.new
    @project.safe_attributes = params[:project]
    if @course_tag == '1'
      @project.identifier = @course.extra
    end
    if @course_tag == '1' 
      if User.current.user_extensions.identity == 0
        if@course.save
          if validate_parent_id && @project.save
            @project.set_allowed_parent!(params[:project]['parent_id']) if params[:project].has_key?('parent_id')
            # Add current user as a project member if he is not admin
            unless User.current.admin?
              r = Role.givable.find_by_id(Setting.new_project_user_role_id.to_i) || Role.givable.first
              m = Member.new(:user => User.current, :roles => [r])
              project = ProjectInfo.new(:user_id => User.current.id, :project_id => @project.id)
              user_grades =  UserGrade.create(:user_id => User.current.id, :project_id => @project.id)
              if params[:project][:is_public] == '1' 
                 project_status = ProjectStatus.create(:project_id => @project.id, :watchers_count => 0, :changesets_count => 0, :grade => 0, :project_type => @course_tag)
              end
            @project.members << m
            @project.project_infos << project
            end
            respond_to do |format|
              format.html {
                flash[:notice] = l(:notice_successful_create)
                if params[:continue]
                  attrs = {:parent_id => @project.parent_id}.reject {|k,v| v.nil?}
                  redirect_to new_project_path(attrs, :course => '0')
                #Added by young
      
                elsif params[:course_continue]
                  redirect_to new_project_path(:course => '1')
                #Ended by young
                else
                  redirect_to settings_project_path(@project,:project_type => 1)
                end
              }
              format.api  { render :action => 'show', :status => :created, :location => url_for(:controller => 'projects', :action => 'show', :id => @project.id) }
            end
          else
            @course.destroy
            respond_to do |format|
              format.html { render :action => 'new', :layout => 'base'}#Added by young
              format.api  { render_validation_errors(@project) }
            end
          end
        else
          if validate_parent_id && @project.save
            @project.delete
            respond_to do |format|
              format.html { render :action => 'new', :layout => 'base'}#Added by young
              format.api  { render_validation_errors(@project) }
            end
          else
            respond_to do |format|
              format.html { render :action => 'new', :layout => 'base'}#Added by young
              format.api  { render_validation_errors(@project) }
            end
          end
        end
      end
    else
      if validate_parent_id && @project.save
          @project.set_allowed_parent!(params[:project]['parent_id']) if params[:project].has_key?('parent_id')
          # Add current user as a project member if he is not admin
          unless User.current.admin?
            r = Role.givable.find_by_id(Setting.new_project_user_role_id.to_i) || Role.givable.first
            m = Member.new(:user => User.current, :roles => [r])
            project = ProjectInfo.new(:user_id => User.current.id, :project_id => @project.id)
            user_grades =  UserGrade.create(:user_id => User.current.id, :project_id => @project.id)
            if params[:project][:is_public] == '1' || @course_tag=="1"
               project_status = ProjectStatus.create(:project_id => @project.id, :watchers_count => 0, :changesets_count => 0)
            end
          @project.members << m
          @project.project_infos << project
          end
          respond_to do |format|
            format.html {
              flash[:notice] = l(:notice_successful_create)
              if params[:continue]
                attrs = {:parent_id => @project.parent_id}.reject {|k,v| v.nil?}
                redirect_to new_project_path(attrs, :course => '0')
              #Added by young
    
              elsif params[:course_continue]
                redirect_to new_project_path(:course => '1')
              #Ended by young
              else
                redirect_to settings_project_path(@project)
              end
            }
            format.api  { render :action => 'show', :status => :created, :location => url_for(:controller => 'projects', :action => 'show', :id => @project.id) }
          end
        else
          respond_to do |format|
            format.html { render :action => 'new', :layout => 'base'}#Added by young
            format.api  { render_validation_errors(@project) }
          end
        end
    end
  end

  def copy
    @issue_custom_fields = IssueCustomField.sorted.all
    @trackers = Tracker.sorted.all
    @source_project = Project.find(params[:id])
    if request.get?
      @project = Project.copy_from(@source_project)
      @project.identifier = Project.next_identifier if Setting.sequential_project_identifiers?
    else
      Mailer.with_deliveries(params[:notifications] == '1') do
        @project = Project.new
        @project.safe_attributes = params[:project]
        if validate_parent_id && @project.copy(@source_project, :only => params[:only])
          @project.set_allowed_parent!(params[:project]['parent_id']) if params[:project].has_key?('parent_id')
          flash[:notice] = l(:notice_successful_create)
          redirect_to settings_project_path(@project)
        elsif !@project.new_record?
          # Project was created
          # But some objects were not copied due to validation failures
          # (eg. issues from disabled trackers)
          # TODO: inform about that
          redirect_to settings_project_path(@project)
        end
      end
    end
  rescue ActiveRecord::RecordNotFound
  # source_project not found
    render_404
    end

  # Show @project
  def show
    
    @project_type = params[:project_type]
    
    # try to redirect to the requested menu item
    if params[:jump] && redirect_to_project_menu_item(@project, params[:jump])
    return
    end

    @users_by_role = @project.users_by_role
    @subprojects = @project.children.visible.all
    @news = @project.news.limit(5).includes(:author, :project).reorder("#{News.table_name}.created_on DESC").all
    @trackers = @project.rolled_up_trackers
    if(User.find_by_id(ProjectInfo.find_by_project_id(@project.id).user_id))
	     @user = User.find_by_id(ProjectInfo.find_by_project_id(@project.id).user_id)
	  end
    cond = @project.project_condition(Setting.display_subprojects_issues?)
    @open_issues_by_tracker = Issue.visible.open.where(cond).count(:group => :tracker)
    @total_issues_by_tracker = Issue.visible.where(cond).count(:group => :tracker)

    if User.current.allowed_to?(:view_time_entries, @project)
      @total_hours = TimeEntry.visible.sum(:hours, :include => :project, :conditions => cond).to_f
    end

    @key = User.current.rss_key
    #新增内容
    @days = Setting.activity_days_default.to_i

    if params[:from]
      begin; @date_to = params[:from].to_date + 1; rescue; end
    end

    has = {
      "show_issues" => true,
      "show_files" => true,
      "show_documents" => true,
      "show_messages" => true,
      "show_news" => true,
      "show_bids" => true
    }
    @date_to ||= Date.today + 1
    @date_from = @date_to - @days
    @with_subprojects = params[:with_subprojects].nil? ? Setting.display_subprojects_issues? : (params[:with_subprojects] == '1')
    @author = (params[:user_id].blank? ? nil : User.active.find(params[:user_id]))
    # 决定显示所用用户或单个用户活动
    @activity = Redmine::Activity::Fetcher.new(User.current, :project => @project,
                                                             :with_subprojects => @with_subprojects,
                                                             :author => @author)
    @activity.scope_select {|t| !has["show_#{t}"].nil?}
    #   @activity.scope = (@author.nil? ? :default : :all) if @activity.scope.empty?
    #Added by young
    events = @activity.events(@date_from, @date_to)

    @offset, @limit = api_offset_and_limit({:limit => 10})
    @events_count = events.count
    @events_pages = Paginator.new @events_count, @limit, params['page']
    @offset ||= @events_pages.offset
    events = events.slice(@offset,@limit)
    #Ended by young
    @events_by_day = events.group_by {|event| User.current.time_to_date(event.event_datetime)}
    #  documents
    @sort_by = %w(category date title author).include?(params[:sort_by]) ? params[:sort_by] : 'category'
    documents = @project.documents.includes(:attachments, :category).all
    case @sort_by
    when 'date'
      @grouped = documents.group_by {|d| d.updated_on.to_date }
    when 'title'
      @grouped = documents.group_by {|d| d.title.first.upcase}
    when 'author'
      @grouped = documents.select{|d| d.attachments.any?}.group_by {|d| d.attachments.last.author}
    else
    @grouped = documents.group_by(&:category)
    end
    @document = @project.documents.build
    #
    @base_courses_tag = @project.project_type
    respond_to do |format|
      format.html{render :layout => 'base_courses' if @base_courses_tag==1}
      format.api
    end
  end

  def settings
    @issue_custom_fields = IssueCustomField.sorted.all
    @issue_category ||= IssueCategory.new
    @member ||= @project.members.new
    @trackers = Tracker.sorted.all
    @wiki ||= @project.wiki
    #Added by young
    # @course_tag = params[:course]
    # if @course_tag == '1'
    if @project.project_type == 1
       @course = Course.find_by_extra(@project.identifier)
      render :layout => 'base_courses'
    else
      render :layout => 'base_projects'
    end
  #Ended by young
  end

  def edit
  end

  #by young
  include CoursesHelper
  def member
    ## 有角色参数的才是课程，没有的就是项目
    @render_file = 'member_list'
    # 判断是否课程
    if @project.project_type == 1
      case params[:role]
      when '1'
        @subPage_title = l :label_teacher_list
        @members = searchTeacherAndAssistant(@project) 
      when '2'
        @subPage_title = l :label_student_list 
        @members = searchStudent(@project)
      else
        @subPage_title = ''
        @members = @project.member_principals.includes(:roles, :principal).all.sort
      end
    else
      roles = Role.find_all_givable
      @subPage_title = l :label_member_list
      @members = @project.member_principals.includes(:roles, :principal).all
      @members = sort_project_members(@project, @members)
    end
    @members = paginateHelper @members
    render :layout => 'base_courses' if @project.project_type == 1
  end

  def sort_project_members project, members
    #userGrade = UserGrade.where(:project_id => project.id)
    users = UserGrade.where(:project_id => project.id).order('grade DESC').joins("LEFT JOIN users ON users.id = user_grades.id")
    memberlist = []
    users.each do |user|
      members.each do |member|
        if member[:user_id] == user[:user_id]
          memberlist << member
        end
      end
    end
    memberlist
  end
  
   # def news
    # if @project.project_type == 1
      # render :layout => 'base_courses'
    # end
  # end

  def file
    # if @project.project_type == 1
      # render :layout => 'base_courses'
    # end
    # @course_tag = params[:course]
    # if @course_tag == '1'
      # render :layout => 'base_courses'
    # end
    
    # User.current
  end

  def statistics

  end
  #end

  def update
    @project.safe_attributes = params[:project]
    if validate_parent_id && @project.save
      @course = Course.find_by_extra(@project.identifier)
      unless @course.nil?
      @course.password = params[:project][:course][:password]
   # added by bai
      @course.term = params[:term]
      @course.time = params[:time]
      @course.setup_time = params[:setup_time]
      @course.endup_time = params[:endup_time]
      @course.class_period = params[:class_period]
   # end
      @course.save
      end           
      @project.set_allowed_parent!(params[:project]['parent_id']) if params[:project].has_key?('parent_id')
            
      if params[:project][:is_public] == '0'
        project_status = ProjectStatus.find_by_project_id(@project.id)
        project_status.destroy
      elsif params[:project][:is_public] == '1'
        project_status = ProjectStatus.create(:project_id => @project.id, :watchers_count => @project.watchers.count, :changesets_count => @project.changesets.count,:grade => 0, :project_type => @project.project_type)
      end

      respond_to do |format|
        format.html {
          flash[:notice] = l(:notice_successful_update)
          redirect_to settings_project_path(@project,:course => @project.project_type)
        }
        format.api  { render_api_ok }
      end
    else
      respond_to do |format|
        format.html {
          settings
          render :action => 'settings'
        }
        format.api  { render_validation_errors(@project) }
      end
    end
  end

  def modules
    @project.enabled_module_names = params[:enabled_module_names]
    flash[:notice] = l(:notice_successful_update)
    redirect_to settings_project_path(@project, :tab => 'modules')
  end

  def archive
    if request.post?
      unless @project.archive
        flash[:error] = l(:error_can_not_archive_project)
      end
    end
    redirect_to admin_projects_path(:status => params[:status])
  end

  def unarchive
    @project.unarchive if request.post? && !@project.active?
    redirect_to admin_projects_path(:status => params[:status])
  end

  def close
    @project.close
    redirect_to project_path(@project)
  end

  def reopen
    @project.reopen
    redirect_to project_path(@project)
  end

  # Delete @project
  def destroy
    @project_to_destroy = @project
    if api_request? || params[:confirm]
      @project_to_destroy.destroy
      respond_to do |format|
        format.html { redirect_to admin_projects_path }
        format.api  { render_api_ok }
      end
    else
      render :layout => "base"
    end
    # hide project in layout
    @project = nil
  end

  private

  # Validates parent_id param according to user's permissions
  # TODO: move it to Project model in a validation that depends on User.current
  def validate_parent_id
    return true if User.current.admin?
    parent_id = params[:project] && params[:project][:parent_id]
    if parent_id || @project.new_record?
      parent = parent_id.blank? ? nil : Project.find_by_id(parent_id.to_i)
      unless @project.allowed_parents.include?(parent)
        @project.errors.add :parent_id, :invalid
      return false
      end
    end
    true
  end

  # added by huang

  def watcherlist
    if @watched
       @users -= watched.watcher_users
    end
  end
end