Remove implementation for updating tickets

* Redmine API doesn't support this behaviour through journals, just creation, as far as I research

lib/provider/comment.rb

@@ -24,15 +24,7 @@ def initialize(ticket_id, *object)
       end
 
       def save
-        issue = API.find(ticket_id)
-        journal = issue.journals.find { |jou| jou.id.to_i == id.to_i }
-        journal.notes = body
-        issue.journals.inject([]) do |arr, jour|
-          arr << jour unless jour.id == journal.id
-          arr
-        end
-        issue.journals << journal
-        issue.save
+        raise TaskMapper::Exception.new "Redmine API doesn't support comment updates"
       end
 
       def self.find_by_id(project_id, ticket_id, id)
@@ -63,5 +55,14 @@ def self.create_journal_for_issue(attributes)
         journal
       end
     end
+
+    class Net::HTTP
+      def send(*args)
+        puts "request: #{args.inspect}"
+        resp = super 
+        puts "response: #{resp.inspect}"
+        resp
+      end
+    end
   end
 end

spec/comments_spec.rb

@@ -79,8 +79,8 @@
     context "when #save" do 
       let(:comment) { ticket.comment(comment_id) }
       let(:changed_comment) { comment.body = 'change'; comment }
-      subject { changed_comment.save }
-      it { should be_true }
+      subject { lambda { changed_comment.save } }
+      it { should raise_error "Redmine API doesn't support comment updates" }
     end
   end
 end