Adds permission to edit and delete issues by role/tracker (#285).

git-svn-id: http://svn.redmine.org/redmine/trunk@15466 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/issues_controller.rb

@@ -211,6 +211,10 @@ class IssuesController < ApplicationController
       unless User.current.allowed_to?(:copy_issues, @projects)
         raise ::Unauthorized
       end
+    else
+      unless @issues.all?(&:attributes_editable?)
+        raise ::Unauthorized
+      end
     end
 
     @allowed_projects = Issue.allowed_target_projects
@@ -263,6 +267,10 @@ class IssuesController < ApplicationController
       unless User.current.allowed_to?(:add_issues, target_projects)
         raise ::Unauthorized
       end
+    else
+      unless @issues.all?(&:attributes_editable?)
+        raise ::Unauthorized
+      end
     end
 
     unsaved_issues = []
@@ -316,6 +324,7 @@ class IssuesController < ApplicationController
   end
 
   def destroy
+    raise Unauthorized unless @issues.all?(&:deletable?)
     @hours = TimeEntry.where(:issue_id => @issues.map(&:id)).sum(:hours).to_f
     if @hours > 0
       case params[:todo]