Initial commit

app/models/carto/shared_entity.rb

@@ -0,0 +1,32 @@
+require 'active_record'
+require_relative '../shared_entity'
+
+module Carto
+  class SharedEntity < ActiveRecord::Base
+    ENTITY_TYPE_VISUALIZATION = 'vis'.freeze
+
+    RECIPIENT_TYPE_USER         = 'user'.freeze
+    RECIPIENT_TYPE_ORGANIZATION = 'org'.freeze
+    RECIPIENT_TYPE_GROUP        = 'group'.freeze
+
+    scope :shared_visualizations, -> { where(entity_type: ENTITY_TYPE_VISUALIZATION) }
+
+    belongs_to :visualization, foreign_key: :entity_id, inverse_of: :shared_entities
+
+    validates :recipient_id, :recipient_type, :entity_id, :entity_type, presence: true
+    validates :recipient_id, uniqueness: { scope: :entity_id, message: 'is already taken' }
+    validate :supported_type
+
+    attr_accessible :entity_id, :recipient_id, :entity_type, :recipient_type
+
+    def self.columns
+      super.reject { |c| c.name == "id" }
+    end
+
+    private
+
+    def supported_type
+      errors.add(:entity_type, 'unsupported type') unless self.entity_type == ENTITY_TYPE_VISUALIZATION
+    end
+  end
+end