Support for choosing a destination category when splitting topics.

app/assets/javascripts/discourse/controllers/merge_topic_controller.js

@@ -25,6 +25,10 @@ Discourse.MergeTopicController = Discourse.ObjectController.extend(Discourse.Sel
     return I18n.t('topic.merge_topic.title');
   }.property('saving'),
 
+  onShow: function() {
+    this.set('controllers.modal.modalClass', 'split-modal');
+  },
+
   movePostsToExistingTopic: function() {
     this.set('saving', true);
 

app/assets/javascripts/discourse/controllers/split_topic_controller.js

@@ -25,21 +25,31 @@ Discourse.SplitTopicController = Discourse.ObjectController.extend(Discourse.Sel
   }.property('saving'),
 
   onShow: function() {
-    this.set('saving', false);
+    this.setProperties({
+      'controllers.modal.modalClass': 'split-modal',
+      saving: false,
+      categoryId: null,
+      topicName: ''
+    });
   },
 
+  actions: {
     movePostsToNewTopic: function() {
       this.set('saving', true);
 
       var postIds = this.get('selectedPosts').map(function(p) { return p.get('id'); }),
           replyPostIds = this.get('selectedReplies').map(function(p) { return p.get('id'); }),
-        self = this;
-
-    Discourse.Topic.movePosts(this.get('id'), {
+          self = this,
+          categoryId = this.get('categoryId'),
+          saveOpts = {
             title: this.get('topicName'),
             post_ids: postIds,
             reply_post_ids: replyPostIds
-    }).then(function(result) {
+          };
+
+      if (!Ember.isNone(categoryId)) { saveOpts.category_id = categoryId; }
+
+      Discourse.Topic.movePosts(this.get('id'), saveOpts).then(function(result) {
         // Posts moved
         self.send('closeModal');
         self.get('topicController').send('toggleMultiSelect');
@@ -51,5 +61,7 @@ Discourse.SplitTopicController = Discourse.ObjectController.extend(Discourse.Sel
       });
       return false;
     }
+  }
+
 
 });

app/assets/javascripts/discourse/templates/modal/merge_topic.js.handlebars

@@ -7,7 +7,9 @@
 
   <p>{{{i18n topic.merge_topic.instructions count="selectedPostsCount"}}}</p>
 
+  <form>
     {{chooseTopic selectedTopicId=selectedTopicId}}
+  </form>
 </div>
 
 <div class="modal-footer">

app/assets/javascripts/discourse/templates/modal/split_topic.js.handlebars

@@ -9,7 +9,10 @@
 
   <form>
     <label>{{i18n topic.split_topic.topic_name}}</label>
-    {{textField value=topicName placeholderKey="composer.title_placeholder"}}
+    {{textField value=topicName placeholderKey="composer.title_placeholder" elementId='split-topic-name'}}
+
+    <label>{{i18n categories.category}}</label>
+    {{categoryChooser value=categoryId}}
   </form>
 
 </div>

app/assets/stylesheets/desktop/modal.scss

@@ -175,6 +175,10 @@
     .chzn-search input {
       width: 378px;
     }
+
+    .chzn-search-icon {
+      margin-top: 8px;
+    }
   }
 
   &.hidden {
@@ -208,28 +212,6 @@
   }
 }
 
-#move-selected {
-  p {
-    margin-top: 0;
-  }
-
-  input[type=radio] {
-    margin-right: 10px;
-  }
-
-  button {
-    margin-top: 10px;
-    display: block;
-    width: 300px;
-  }
-
-  form {
-    margin-top: 20px;
-    input[type=text] {
-      width: 500px;
-    }
-  }
-}
 
 .flag-modal {
   max-height: 450px;
@@ -282,6 +264,37 @@
   position: absolute;
 }
 
+.split-modal {
+  .modal-body {
+    position: relative;
+    height: 350px;
+  }
+
+
+  #move-selected {
+    p {
+      margin-top: 0;
+    }
+
+    input[type=radio] {
+      margin-right: 10px;
+    }
+
+    button {
+      margin-top: 10px;
+      display: block;
+      width: 300px;
+    }
+
+    form {
+      margin-top: 20px;
+      #split-topic-name, #choose-topic-title {
+        width: 520px;
+      }
+    }
+  }
+}
+
 .invite-modal {
   overflow: visible;
   .ember-text-field {

app/assets/stylesheets/vendor/chosen.css.erb

@@ -20,6 +20,7 @@
   box-shadow        : 0 4px 5px rgba(0,0,0,.15);
   z-index: 1010;
 }
+
 /* @end */
 
 /* @group Single Chosen */

app/controllers/topics_controller.rb

@@ -227,6 +227,8 @@ class TopicsController < ApplicationController
 
   def move_posts
     params.require(:post_ids)
+    params.require(:topic_id)
+    params.permit(:category_id)
 
     topic = Topic.where(id: params[:topic_id]).first
     guardian.ensure_can_move_posts!(topic)
@@ -325,6 +327,7 @@ class TopicsController < ApplicationController
     args = {}
     args[:title] = params[:title] if params[:title].present?
     args[:destination_topic_id] = params[:destination_topic_id].to_i if params[:destination_topic_id].present?
+    args[:category_id] = params[:category_id].to_i if params[:category_id].present?
 
     topic.move_posts(current_user, post_ids_including_replies, args)
   end

app/models/post_mover.rb

@@ -19,14 +19,14 @@ class PostMover
     end
   end
 
-  def to_new_topic(title)
+  def to_new_topic(title, category_id=nil)
     @move_type = PostMover.move_types[:new_topic]
 
     Topic.transaction do
       move_posts_to Topic.create!(
         user: user,
         title: title,
-        category: original_topic.category
+        category_id: category_id
       )
     end
   end

app/models/topic.rb

@@ -486,7 +486,7 @@ class Topic < ActiveRecord::Base
     if opts[:destination_topic_id]
       post_mover.to_topic opts[:destination_topic_id]
     elsif opts[:title]
-      post_mover.to_new_topic opts[:title]
+      post_mover.to_new_topic(opts[:title], opts[:category_id])
     end
   end
 

config/locales/client.en.yml

@@ -763,7 +763,7 @@ en:
       split_topic:
         title: "Move to New Topic"
         action: "move to new topic"
-        topic_name: "New Topic Name:"
+        topic_name: "New Topic Name"
         error: "There was an error moving posts to the new topic."
         instructions:
           one: "You are about to create a new topic and populate it with the post you've selected."

config/locales/client.id.yml

@@ -469,7 +469,7 @@ id:
 
       move_selected:
         title: "Move Selected Posts"
-        topic_name: "New Topic Name:"
+        topic_name: "New Topic Name"
         error: "Sorry, there was an error moving those posts."
         instructions:
           one: "You are about to create a new topic and populate it with the post you've selected."

spec/controllers/topics_controller_spec.rb

@@ -62,8 +62,8 @@ describe TopicsController do
         let(:p2) { Fabricate(:post, user: user) }
 
         before do
-          Topic.any_instance.expects(:move_posts).with(user, [p2.id], title: 'blah').returns(topic)
-          xhr :post, :move_posts, topic_id: topic.id, title: 'blah', post_ids: [p2.id]
+          Topic.any_instance.expects(:move_posts).with(user, [p2.id], title: 'blah', category_id: 123).returns(topic)
+          xhr :post, :move_posts, topic_id: topic.id, title: 'blah', post_ids: [p2.id], category_id: 123
         end
 
         it "returns success" do

spec/models/post_mover_spec.rb

@@ -6,7 +6,7 @@ describe PostMover do
     let(:user) { Fabricate(:user) }
     let(:another_user) { Fabricate(:evil_trout) }
     let(:category) { Fabricate(:category, user: user) }
-    let!(:topic) { Fabricate(:topic, user: user, category: category) }
+    let!(:topic) { Fabricate(:topic, user: user) }
     let!(:p1) { Fabricate(:post, topic: topic, user: user) }
     let!(:p2) { Fabricate(:post, topic: topic, user: another_user, raw: "Has a link to [evil trout](http://eviltrout.com) which is a cool site.")}
     let!(:p3) { Fabricate(:post, topic: topic, user: user)}
@@ -58,7 +58,7 @@ describe PostMover do
       end
 
       context "to a new topic" do
-        let!(:new_topic) { topic.move_posts(user, [p2.id, p4.id], title: "new testing topic name") }
+        let!(:new_topic) { topic.move_posts(user, [p2.id, p4.id], title: "new testing topic name", category_id: category.id) }
 
         it "works correctly" do
           TopicUser.where(user_id: user.id, topic_id: topic.id).first.last_read_post_number.should == p3.post_number