Merge pull request #5705 from discourse/new_webhooks

FEATURE: Webhook for group and category events

app/controllers/admin/groups_controller.rb

@@ -55,7 +55,10 @@ class Admin::GroupsController < Admin::AdminController
 
     # group rename is ignored for automatic groups
     group.name = group_params[:name] if group_params[:name] && !group.automatic
-    save_group(group) { |g| GroupActionLogger.new(current_user, g).log_change_group_settings }
+    save_group(group) do |group|
+      GroupActionLogger.new(current_user, group).log_change_group_settings
+      DiscourseEvent.trigger(:group_updated, group)
+    end
   end
 
   def save_group(group)

app/controllers/categories_controller.rb

@@ -149,6 +149,7 @@ class CategoriesController < ApplicationController
       old_permissions = cat.permissions_params
 
       if result = cat.update(category_params)
+        DiscourseEvent.trigger(:category_updated, cat)
         Scheduler::Defer.later "Log staff action change category settings" do
           @staff_action_logger.log_category_settings_change(@category, category_params, old_permissions)
         end
@@ -165,6 +166,7 @@ class CategoriesController < ApplicationController
     custom_slug = params[:slug].to_s
 
     if custom_slug.present? && @category.update_attributes(slug: custom_slug)
+      DiscourseEvent.trigger(:category_updated, @category)
       render json: success_json
     else
       render_json_error(@category)

app/controllers/groups_controller.rb

@@ -137,6 +137,7 @@ class GroupsController < ApplicationController
 
     if group.update_attributes(group_params)
       GroupActionLogger.new(current_user, group).log_change_group_settings
+      DiscourseEvent.trigger(:group_updated, group)
 
       render json: success_json
     else

app/jobs/regular/emit_web_hook_event.rb

@@ -50,6 +50,18 @@ module Jobs
       args[:payload] = WebHookUserSerializer.new(user, scope: guardian, root: false).as_json
     end
 
+    def setup_group(args)
+      group = Group.find(args[:group_id])
+      return if group.blank?
+      args[:payload] = WebHookGroupSerializer.new(group, scope: guardian, root: false).as_json
+    end
+
+    def setup_category(args)
+      category = Category.find(args[:category_id])
+      return if category.blank?
+      args[:payload] = WebHookCategorySerializer.new(category, scope: guardian, root: false).as_json
+    end
+
     def ping_event?(event_type)
       event_type.to_s == 'ping'.freeze
     end

app/models/category.rb

@@ -61,6 +61,9 @@ class Category < ActiveRecord::Base
   after_update :rename_category_definition, if: :saved_change_to_name?
   after_update :create_category_permalink, if: :saved_change_to_slug?
 
+  after_commit :trigger_category_created_event, on: :create
+  after_commit :trigger_category_destroyed_event, on: :destroy
+
   belongs_to :parent_category, class_name: 'Category'
   has_many :subcategories, class_name: 'Category', foreign_key: 'parent_category_id'
 
@@ -508,6 +511,16 @@ SQL
   def subcategory_list_includes_topics?
     subcategory_list_style.end_with?("with_featured_topics")
   end
+
+  def trigger_category_created_event
+    DiscourseEvent.trigger(:category_created, self)
+    true
+  end
+
+  def trigger_category_destroyed_event
+    DiscourseEvent.trigger(:category_destroyed, self)
+    true
+  end
 end
 
 # == Schema Information

app/models/group.rb

@@ -35,6 +35,9 @@ class Group < ActiveRecord::Base
   after_save :expire_cache
   after_destroy :expire_cache
 
+  after_commit :trigger_group_created_event, on: :create
+  after_commit :trigger_group_destroyed_event, on: :destroy
+
   def expire_cache
     ApplicationSerializer.expire_cache_fragment!("group_names")
   end
@@ -580,6 +583,16 @@ class Group < ActiveRecord::Base
     self.member_of(groups, user).where("gu.owner")
   end
 
+  def trigger_group_created_event
+    DiscourseEvent.trigger(:group_created, self)
+    true
+  end
+
+  def trigger_group_destroyed_event
+    DiscourseEvent.trigger(:group_destroyed, self)
+    true
+  end
+
   protected
 
     def name_format_validator

app/models/web_hook_event_type.rb

@@ -2,6 +2,8 @@ class WebHookEventType < ActiveRecord::Base
   TOPIC = 1
   POST = 2
   USER = 3
+  GROUP = 4
+  CATEGORY = 5
 
   has_and_belongs_to_many :web_hooks
 

app/serializers/web_hook_category_serializer.rb

@@ -0,0 +1,12 @@
+class WebHookCategorySerializer < CategorySerializer
+
+  %i{
+    can_edit
+    notification_level
+  }.each do |attr|
+    define_method("include_#{attr}?") do
+      false
+    end
+  end
+
+end

app/serializers/web_hook_group_serializer.rb

@@ -0,0 +1,12 @@
+class WebHookGroupSerializer < GroupShowSerializer
+
+  %i{
+    is_group_user
+    is_group_owner
+  }.each do |attr|
+    define_method("include_#{attr}?") do
+      false
+    end
+  end
+
+end