Warn about subtasks before deleting a parent issue (#6562).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@5495 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/context_menus_controller.rb

@@ -1,5 +1,6 @@
 class ContextMenusController < ApplicationController
   helper :watchers
+  helper :issues
   
   def issues
     @issues = Issue.visible.all(:conditions => {:id => params[:ids]}, :include => :project)

app/helpers/issues_helper.rb

@@ -109,6 +109,24 @@ module IssuesHelper
     s
   end
   
+  def issues_destroy_confirmation_message(issues)
+    issues = [issues] unless issues.is_a?(Array)
+    message = l(:text_issues_destroy_confirmation)
+    descendant_count = issues.inject(0) {|memo, i| memo += (i.right - i.left - 1)/2}
+    if descendant_count > 0
+      issues.each do |issue|
+        next if issue.root?
+        issues.each do |other_issue|
+          descendant_count -= 1 if issue.is_descendant_of?(other_issue)
+        end
+      end
+      if descendant_count > 0
+        message << "\n" + l(:text_issues_destroy_descendants_confirmation, :count => descendant_count)
+      end
+    end
+    message
+  end
+  
   def sidebar_queries
     unless @sidebar_queries
       # User can see public queries and his own queries

app/views/context_menus/issues.html.erb

@@ -115,7 +115,7 @@
   <li><%= context_menu_link l(:button_move), new_issue_move_path(:ids => @issues.collect(&:id)),
 	                        :class => 'icon-move', :disabled => !@can[:move]  %></li>
   <li><%= context_menu_link l(:button_delete), {:controller => 'issues', :action => 'destroy', :ids => @issues.collect(&:id), :back_url => @back},
-                            :method => :post, :confirm => l(:text_issues_destroy_confirmation), :class => 'icon-del', :disabled => !@can[:delete] %></li>
+                            :method => :post, :confirm => issues_destroy_confirmation_message(@issues), :class => 'icon-del', :disabled => !@can[:delete] %></li>
 
   <%= call_hook(:view_issues_context_menu_end, {:issues => @issues, :can => @can, :back => @back }) %>
 </ul>

app/views/issues/_action_menu.rhtml

@@ -5,5 +5,5 @@
 <%= link_to_if_authorized l(:button_duplicate), {:controller => 'issues', :action => 'new', :project_id => @project, :copy_from => @issue }, :class => 'icon icon-duplicate' %>
 <%= link_to_if_authorized l(:button_copy), {:controller => 'issue_moves', :action => 'new', :id => @issue, :copy_options => {:copy => 't'}}, :class => 'icon icon-copy' %>
 <%= link_to_if_authorized l(:button_move), {:controller => 'issue_moves', :action => 'new', :id => @issue}, :class => 'icon icon-move' %>
-<%= link_to_if_authorized l(:button_delete), {:controller => 'issues', :action => 'destroy', :id => @issue}, :confirm => (@issue.leaf? ? l(:text_are_you_sure) : l(:text_are_you_sure_with_children)), :method => :post, :class => 'icon icon-del' %>
+<%= link_to_if_authorized l(:button_delete), {:controller => 'issues', :action => 'destroy', :id => @issue}, :confirm => issues_destroy_confirmation_message(@issue), :method => :post, :class => 'icon icon-del' %>
 </div>