Fix private user private process block

lib/decidim/has_private_users.rb

@@ -0,0 +1,53 @@
+# frozen_string_literal: true
+
+require "active_support/concern"
+
+module Decidim
+  # A concern with the features needed when you want a model to be able to create
+  # private users
+  module HasPrivateUsers
+    extend ActiveSupport::Concern
+
+    included do
+      has_many :participatory_space_private_users,
+               class_name: "Decidim::ParticipatorySpacePrivateUser",
+               as: :privatable_to,
+               dependent: :destroy
+      has_many :users,
+               -> { entire_collection },
+               through: :participatory_space_private_users,
+               class_name: "Decidim::User",
+               foreign_key: "private_user_to_id"
+
+      def self.visible_for(user)
+        if user
+          return all if user.admin?
+
+          where(
+            id: public_spaces +
+                private_spaces
+                  .joins(:participatory_space_private_users)
+                  .where(decidim_participatory_space_private_users: { decidim_user_id: user.id })
+          )
+        else
+          public_spaces
+        end
+      end
+
+      def can_participate?(user)
+        return true unless private_space?
+        return false unless user
+
+        participatory_space_private_users.exists?(decidim_user_id: user.id)
+      end
+
+      def self.public_spaces
+        where(private_space: false).published
+      end
+
+      def self.private_spaces
+        where(private_space: true)
+      end
+    end
+  end
+end