show autofollow on client and mute on unfollow

app/models/user.rb

@@ -58,8 +58,8 @@ class User < ApplicationRecord
       admin: admin }
     if (_options[:follows])
       json['follows'] = {
-        topics: following.where(followed_type: 'Topic').to_a.map(&:followed_id),
+        topics: following.where(muted: false, followed_type: 'Topic').to_a.map(&:followed_id),
-        maps: following.where(followed_type: 'Map').to_a.map(&:followed_id)
+        maps: following.where(muted: false, followed_type: 'Map').to_a.map(&:followed_id)
       }
     end
     if (_options[:follow_settings])

app/services/follow_service.rb

@@ -8,13 +8,15 @@ class FollowService
       return if (reason == 'created' || reason == 'contributed') && !should_auto_follow(entity, user, reason)
 
       follow = Follow.where(followed: entity, user: user).first_or_create
+      follow.update_attribute('muted', false)
       if FollowReason::REASONS.include?(reason) && !follow.follow_reason.read_attribute(reason)
         follow.follow_reason.update_attribute(reason, true)
       end
     end
 
     def unfollow(entity, user)
-      Follow.where(followed: entity, user: user).destroy_all
+      follow = Follow.where(followed: entity, user: user).first
+      follow.update_attribute('muted', true)
     end
 
     def remove_reason(entity, user, reason)
@@ -31,6 +33,8 @@ class FollowService
     protected
 
     def should_auto_follow(entity, user, reason)
+      follow = Follow.where(followed: entity, user: user).first
+      return false if follow && follow.muted
       if entity.class == Topic
         if reason == 'created'
           return user.settings.follow_topic_on_created == '1'

app/services/notification_service.rb

@@ -51,7 +51,8 @@ class NotificationService
 
   def self.notify_followers(entity, event_type, event, reason_filter = nil, exclude_follows = nil)
     follows = entity.follows.where.not(user_id: event.user.id)
-    
+    follows = follows.where(muted: false)
+
     if !exclude_follows.nil?
       follows = follows.where.not(id: exclude_follows)
     end

db/migrate/20170903180840_add_muted_to_follows.rb

@@ -0,0 +1,5 @@
+class AddMutedToFollows < ActiveRecord::Migration[5.0]
+  def change
+    add_column :follows, :muted, :boolean 
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170209215911) do
+ActiveRecord::Schema.define(version: 20170903180840) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -86,6 +86,7 @@ ActiveRecord::Schema.define(version: 20170209215911) do
     t.integer  "followed_id"
     t.datetime "created_at",    null: false
     t.datetime "updated_at",    null: false
+    t.boolean  "muted"
     t.index ["followed_type", "followed_id"], name: "index_follows_on_followed_type_and_followed_id", using: :btree
     t.index ["user_id"], name: "index_follows_on_user_id", using: :btree
   end

frontend/src/Metamaps/DataModel/Topic.js

@@ -105,6 +105,10 @@ const Topic = Backbone.Model.extend({
     var onPageWithTopicCard = Active.Map || Active.Topic
     var node = this.get('node')
 
+    if (Active.Mapper.get('follow_topic_on_contributed')) {
+      Active.Mapper.followTopic(this.id)
+    }
+
     // update the node on the map
     if (onPageWithTopicCard && node) {
       node.name = this.get('name')