Ignore ActiveModel::RangeError in Ransack conditions

Fixes #1337

lib/ransack/adapters/active_record/ransack/nodes/condition.rb

@@ -21,7 +21,7 @@ def arel_predicate
         }.reduce(combinator_method)
 
         if replace_right_node?(predicate)
-          # Replace right node object to plain Integer value in order to avoid
+          # Replace right node object to plain integer value in order to avoid
           # ActiveModel::RangeError from Arel::Node::Casted.
           # The error can be ignored here because RDBMSs accept large numbers
           # in condition clauses.
@@ -73,8 +73,9 @@ def replace_right_node?(predicate)
           arel_node = predicate.right
           return unless arel_node.is_a?(Arel::Nodes::Casted)
 
-          relation_type = arel_node.attribute.relation.type_for_attribute(arel_node.attribute.name).type
-          relation_type == :integer && arel_node.value.is_a?(Integer)
+          relation, name = arel_node.attribute.values
+          attribute_type = relation.type_for_attribute(name).type
+          attribute_type == :integer && arel_node.value.is_a?(Integer)
         end
 
     end