回帖内容里面包含 +1, :plus1:, 以及表情符号的手势等赞有关的字符时，赞帖子。#460

app/models/reply.rb

@@ -9,6 +9,8 @@ class Reply
   include Mongoid::Mentionable
   include Mongoid::Likeable
 
+  UPVOTES = %w(+1 :+1: :thumbsup: :plus1: 👍 👍🏻 👍🏼 👍🏽 👍🏾 👍🏿)
+
   field :body
   field :body_html
 
@@ -54,6 +56,13 @@ def update_parent_topic_updated_at
     Reply.delay.notify_reply_created(id)
   end
 
+  after_create :check_vote_chars_for_like_topic
+  def check_vote_chars_for_like_topic
+    return unless self.upvote?
+    user.like(topic)
+  end
+
+
   def self.per_page
     50
   end
@@ -92,6 +101,10 @@ def popular?
     likes_count >= 5
   end
 
+  def upvote?
+    body.strip.start_with?(*UPVOTES)
+  end
+
   def destroy
     super
     notifications.delete_all

app/views/replies/create.js.erb

@@ -1,17 +1,21 @@
 <% if @reply.errors.blank? %>
-<% @page = 1 %>
-  if($("#replies").length == 0){
+  <% if @reply.upvote? %>
     Turbolinks.visit(location.href);
-  }
-  else {
-    var current_floor = parseInt($("#replies").data("last-floor")) + 1;
-    $("#replies .items").append('<%= j(render("reply", reply: @reply, reply_counter: @topic.replies_count - 1, display_edit: true)) %>')
-      .find(".total b").text('<%= @topic.replies_count %>');
-    $("#replies .items .reply:last .reply-floor").text(current_floor + " 楼");
-    $("#replies").data("last-floor", current_floor);
-    $("#replies .reply a.edit:last").css("display","inline-block");
-    _topicView.replyCallback(1,'<%= j(@msg) %>');
-  }
+  <% else %>
+    <% @page = 1 %>
+    if($("#replies").length == 0){
+      Turbolinks.visit(location.href);
+    }
+    else {
+      var current_floor = parseInt($("#replies").data("last-floor")) + 1;
+      $("#replies .items").append('<%= j(render("reply", reply: @reply, reply_counter: @topic.replies_count - 1, display_edit: true)) %>')
+        .find(".total b").text('<%= @topic.replies_count %>');
+      $("#replies .items .reply:last .reply-floor").text(current_floor + " 楼");
+      $("#replies").data("last-floor", current_floor);
+      $("#replies .reply a.edit:last").css("display", "inline-block");
+      _topicView.replyCallback(1, '<%= j(@msg) %>');
+    }
+  <% end %>
 <% else %>
-  _topicView.replyCallback(0,'<%= j(@msg) %>');
+  _topicView.replyCallback(0, '<%= j(@msg) %>');
 <% end %>

spec/models/reply_spec.rb

@@ -142,4 +142,51 @@
       r.destroy
     end
   end
+
+  describe 'Vote by content' do
+    let(:reply) { build :reply }
+
+    describe '.upvote?' do
+      let(:chars) { %w(+1 :+1: :thumbsup: :plus1: 👍 👍🏻 👍🏼 👍🏽 👍🏾 👍🏿) }
+      it 'should work' do
+        chars.each do |key|
+          reply.body = key
+          expect(reply.upvote?).to eq(true)
+        end
+
+        reply.body = 'Ok +1'
+        expect(reply.upvote?).to eq(false)
+      end
+    end
+
+    describe '.check_vote_chars_for_like_topic' do
+      let(:user) { create :user }
+      let(:topic) { create :topic }
+      let(:reply) { build :reply, user: user, topic: topic }
+
+      context 'UpVote' do
+        it 'should work' do
+          expect(user).to receive(:like).with(topic).once
+          allow(reply).to receive(:upvote?).and_return(true)
+          reply.check_vote_chars_for_like_topic
+        end
+      end
+
+      context 'None' do
+        it 'should work' do
+          expect(user).to receive(:like).with(topic).at_most(0).times
+          allow(reply).to receive(:upvote?).and_return(false)
+          reply.check_vote_chars_for_like_topic
+        end
+      end
+
+      context 'callback on created' do
+        it 'should work' do
+          expect(reply).to receive(:check_vote_chars_for_like_topic).once
+          reply.save
+        end
+      end
+    end
+  end
+
 end