FIX: polls with votes were preventing users from updating the post

plugins/poll/plugin.rb

@@ -17,6 +17,9 @@ PLUGIN_NAME ||= "discourse_poll".freeze
 POLLS_CUSTOM_FIELD ||= "polls".freeze
 VOTES_CUSTOM_FIELD ||= "polls-votes".freeze
 
+DATA_PREFIX ||= "data-poll-".freeze
+DEFAULT_POLL_NAME ||= "poll".freeze
+
 after_initialize do
 
   # remove "Vote Now!" & "Show Results" links in emails
@@ -157,6 +160,7 @@ after_initialize do
   end
 
   require_dependency "application_controller"
+
   class DiscoursePoll::PollsController < ::ApplicationController
     requires_plugin PLUGIN_NAME
 
@@ -217,9 +221,6 @@ after_initialize do
     end
   end
 
-  DATA_PREFIX ||= "data-poll-".freeze
-  DEFAULT_POLL_NAME ||= "poll".freeze
-
   validate(:post, :validate_polls) do
     # only care when raw has changed!
     return unless self.raw_changed?
@@ -285,9 +286,12 @@ after_initialize do
         # load previous polls
         previous_polls = post.custom_fields[POLLS_CUSTOM_FIELD] || {}
 
+        # extract options
+        current_options = polls.values.map { |p| p["options"].map { |o| o["id"] } }.flatten.sort
+        previous_options = previous_polls.values.map { |p| p["options"].map { |o| o["id"] } }.flatten.sort
+
         # are the polls different?
-        if polls.keys != previous_polls.keys ||
-           polls.values.map { |p| p["options"] } != previous_polls.values.map { |p| p["options"] }
+        if polls.keys != previous_polls.keys || current_options != previous_options
 
           # outside of the 5-minute edit window?
           if post.created_at < 5.minutes.ago

plugins/poll/spec/controllers/posts_controller_spec.rb

@@ -10,7 +10,6 @@ describe PostsController do
 
   describe "polls" do
 
-
     it "works" do
       xhr :post, :create, { title: title, raw: "[poll]\n- A\n- B\n[/poll]" }
       expect(response).to be_success
@@ -91,7 +90,7 @@ describe PostsController do
       describe "within the first 5 minutes" do
 
         let(:post_id) do
-          Timecop.freeze(3.minutes.ago) do
+          Timecop.freeze(4.minutes.ago) do
             xhr :post, :create, { title: title, raw: "[poll]\n- A\n- B\n[/poll]" }
             ::JSON.parse(response.body)["id"]
           end
@@ -116,30 +115,54 @@ describe PostsController do
 
       describe "after the first 5 minutes" do
 
+        let(:poll) { "[poll]\n- A\n- B[/poll]" }
+        let(:new_option) { "[poll]\n- A\n- C[/poll]" }
+        let(:updated) { "before\n\n[poll]\n- A\n- B[/poll]\n\nafter" }
+
         let(:post_id) do
           Timecop.freeze(6.minutes.ago) do
-            xhr :post, :create, { title: title, raw: "[poll]\n- A\n- B\n[/poll]" }
+            xhr :post, :create, { title: title, raw: poll }
             ::JSON.parse(response.body)["id"]
           end
         end
 
-        let(:new_raw) { "[poll]\n- A\n- C[/poll]" }
-
-        it "cannot be changed by OP" do
-          xhr :put, :update, { id: post_id, post: { raw: new_raw } }
+        it "OP cannot change the options" do
+          xhr :put, :update, { id: post_id, post: { raw: new_option } }
           expect(response).not_to be_success
           json = ::JSON.parse(response.body)
           expect(json["errors"][0]).to eq(I18n.t("poll.op_cannot_edit_options_after_5_minutes"))
         end
 
-        it "can be edited by staff" do
+        it "staff can change the options" do
           log_in_user(Fabricate(:moderator))
-          xhr :put, :update, { id: post_id, post: { raw: new_raw } }
+          xhr :put, :update, { id: post_id, post: { raw: new_option } }
           expect(response).to be_success
           json = ::JSON.parse(response.body)
           expect(json["post"]["polls"]["poll"]["options"][1]["html"]).to eq("C")
         end
 
+        it "support changes on the post" do
+          xhr :put, :update, { id: post_id, post: { raw: updated } }
+          expect(response).to be_success
+          json = ::JSON.parse(response.body)
+          expect(json["post"]["cooked"]).to match("before")
+        end
+
+        describe "with at least one vote" do
+
+          before do
+            DiscoursePoll::Poll.vote(post_id, "poll", ["5c24fc1df56d764b550ceae1b9319125"], user.id)
+          end
+
+          it "support changes on the post" do
+            xhr :put, :update, { id: post_id, post: { raw: updated } }
+            expect(response).to be_success
+            json = ::JSON.parse(response.body)
+            expect(json["post"]["cooked"]).to match("before")
+          end
+
+        end
+
       end
 
     end