Redmine

      :delete_watchers => User.current.allowed_to?(:delete_issue_watchers, @projects),

  before_action :require_login, :find_watchables, :only => [:watch, :unwatch, :bulk_delete]

  def bulk_delete

    if request.method == "POST"

      return unless params[:watcher].present?

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

      @users = Principal.where(:id => user_ids).to_a

      @users.each do |user|

        @watchables.each do |watchable|

          watchable.set_watcher(user, false)

        end

      end

      respond_to do |format|

        format.js

        format.api {render_api_ok}

      end

    elsif request.method == "GET"

      if params["object_id"].present?

        @users = Watcher.where(watchable_id: params["object_id"]).all.map { |w| w.user }.uniq

      else

        @users = Principal.assignable_watchers

      end

    end

  end

      <li><%= context_menu_link l(:button_delete),

                bulk_delete_watchers_dialog_path(:object_type => 'issue', :object_id => @issue_ids),

                :remote => true,

                :class => 'icon icon-del' %></li>

<%

title =

  if watchables.present?

    l(:"permission_delete_#{watchables.first.class.name.underscore}_watchers")

  else

    l(:permission_delete_issue_watchers)

  end

-%>

<h3 class="title"><%= title %></h3>

<%= form_tag(bulk_delete_watchers_path,

             :remote => true,

             :method => :post,

             :id => 'new-watcher-form') do %>

  <% if watchables.present? %>

    <%= hidden_field_tag 'object_type', watchables.first.class.name.underscore %>

    <% watchables.each do |watchable| %>

      <%= hidden_field_tag 'object_id[]', watchable.id %>

    <% end  %>

  <% end %>

  <%= hidden_field_tag 'project_id', @project.id if @project %>

  <p><%= label_tag 'user_search', l(:label_user_search) %><%= text_field_tag 'user_search', nil %></p>

  <%= javascript_tag(

        "observeSearchfield(

          'user_search',

          'users_for_watcher',

          '#{escape_javascript(

               url_for(

                 :controller => 'watchers',

                 :action => 'autocomplete_for_user',

                 :object_type => (watchables.present? ? watchables.first.class.name.underscore : nil),

                 :object_id => (watchables.present? ? watchables.map(&:id) : nil),

                 :project_id => @project

               )

             )}'

         )"

       ) %>

  <div id="users_for_watcher">

    <%= principals_check_box_tags('watcher[user_ids][]', users) %>

  </div>

  <p class="buttons">

    <%= submit_tag l(:button_delete), :name => nil, :onclick => "hideModal(this);" %>

    <%= link_to_function l(:button_cancel), "hideModal(this);" %>

  </p>

<% end %>

<% if request.method == "GET" %>

  $('#ajax-modal').html(

  '<%= escape_javascript(

         render(:partial => 'watchers/bulk_delete',

                :locals => { :watchables => @watchables, :users => @users })

       ) %>');

  showModal('ajax-modal', '400px');

  $('#ajax-modal').addClass('delete-watchers');

<% end %>

  get 'watchers/delete', :to => 'watchers#bulk_delete', :as => 'bulk_delete_watchers_dialog'

  post 'watchers/bulk_delete', :to => 'watchers#bulk_delete', :as => 'bulk_delete_watchers'