[#2766] When an issue is destroyed, any KanbanIssues related to it wi…

…ll also be.

app/views/kanbans/_issue.html.erb

@@ -1,6 +1,8 @@
+<% if issue %>
 <li id="issue_<%= issue.id %>" class="kanban-issue issue <%= over_pane_limit?(limit, issue_counter) if defined?(limit) -%>">
   <div class="issue-details">
     <%= link_to(image_tag('ticket.png'), :controller => 'issues', :action => 'show', :id => issue) %>
     #<%= h(issue.id) %> - <%= h(issue.project.name) %> - <%= h(issue.subject) %>
   </div>
-</li>
+</li>
+<% end %>

lib/redmine_kanban/issue_patch.rb

@@ -11,6 +11,7 @@ def self.included(base) # :nodoc:
         unloadable # Send unloadable so it will not be unloaded in development
 
         after_save :update_kanban_from_issue
+        after_destroy :remove_kanban_issues
 
         # Add visible to Redmine 0.8.x
         unless respond_to?(:visible)
@@ -31,6 +32,10 @@ def update_kanban_from_issue
         KanbanIssue.update_from_issue(self)
         return true
       end
+
+      def remove_kanban_issues
+        KanbanIssue.destroy_all(['issue_id = (?)', self.id]) if self.id
+      end
     end    
   end
 end

test/unit/issue_test.rb

@@ -5,4 +5,21 @@ def shared_setup
     configure_plugin
   end
 
+  context 'after_destroy' do
+    should 'destroy any associated KanbanIssues' do
+      shared_setup
+      project = make_project_with_trackers
+      issue = Issue.make(:project => project,
+                         :tracker => project.trackers.first,
+                         :status => IssueStatus.find_by_name('Active')
+                         )
+
+      assert KanbanIssue.find_by_issue_id(issue.id)
+      assert_difference('KanbanIssue.count',-1) do
+        issue.destroy
+      end
+      assert_nil KanbanIssue.find_by_issue_id(issue.id)
+    end
+  end
+
 end