lib/goldiloader/association_info.rb in goldiloader-0.0.4 vs lib/goldiloader/association_info.rb in goldiloader-0.0.5

@@ -1,12 +1,24 @@
+# encoding: UTF-8
+
 module Goldiloader
   class AssociationInfo
 
     def initialize(association)
       @association = association
     end
 
+    def unscope?
+      Goldiloader::Compatibility.unscope_query_method_enabled? &&
+        @association.association_scope.unscope_values.present?
+    end
+
+    def finder_sql?
+      Goldiloader::Compatibility.association_finder_sql_enabled? &&
+        @association.options[:finder_sql].present?
+    end
+
     if ActiveRecord::VERSION::MAJOR >= 4
       def read_only?
         @association.association_scope.readonly_value.present?
       end
 
@@ -23,10 +35,27 @@
       end
 
       def group?
         @association.association_scope.group_values.present?
       end
+
+      def joins?
+        # Yuck - Through associations will always have a join for *each* 'through' table
+        (@association.association_scope.joins_values.size - num_through_joins) > 0
+      end
+
+      private
+
+      def num_through_joins
+        association = @association
+        count = 0
+        while association.is_a?(ActiveRecord::Associations::ThroughAssociation)
+          count += 1
+          association = association.owner.association(association.through_reflection.name)
+        end
+        count
+      end
     else
       def read_only?
         @association.options[:readonly].present?
       end
 
@@ -37,14 +66,19 @@
       def limit?
         @association.options[:limit].present?
       end
 
       def from?
-        @association.options[:finder_sql].present?
+        false
       end
 
       def group?
         @association.options[:group].present?
+      end
+
+      def joins?
+        # Rails 3 didn't support joins for associations
+        false
       end
     end
 
   end
 end