Pasteable

lib/acts_as_pasting.rb

@@ -3,6 +3,7 @@ require "acts_as_pasting/version"
 module ActsAsPasting
   require 'acts_as_pasting/errors'
   autoload :Pasted,     'acts_as_pasting/pasted'
+  autoload :Pasteable,  'acts_as_pasting/pasteable'
   autoload :Pasting,    'acts_as_pasting/pasting'
 
   def self.table_name_prefix

lib/acts_as_pasting/pasteable.rb

+module ActsAsPasting
+  module Pasteable
+    extend ActiveSupport::Concern
+
+    # 带 prefix 的 pasted_with，独立于不带 prefix 的之外
+    included do
+      has_many :pastings, as: :pasteable, class_name: 'ActsAsPasting::Pasting'
+      has_many :hosts, through: :pastings
+
+      # ary => [[klass, id], [klass, id]]
+      # ary => [obj, obj]
+      scope :pasted_with_any, ->(ary, prefix: '') {
+        ary = parsed_condition_ary(ary)
+        ids = ary.map do |klass, id|
+          joins(:pastings).where(acts_as_pasting_pastings: {
+            pasted_type: klass.constantize.base_class.name, pasted_id: id, type: prefix
+          }).pluck(:id)
+        end.reduce(:|)
+        where(id: ids)
+      }
+
+      scope :pasted_with_all, ->(ary, prefix: '') {
+        ary = parsed_condition_ary(ary)
+        ids = ary.map do |klass, id|
+          joins(:pastings).where(acts_as_pasting_pastings: {
+            pasted_type: klass.constantize.base_class.name, pasted_id: id, type: prefix
+          }).pluck(:id)
+        end.reduce(:&)
+        where(id: ids)
+      }
+    end
+
+    module ClassMethods
+    end
+  end
+end