diff options
Diffstat (limited to 'activerecord/lib/arel.rb')
| -rw-r--r-- | activerecord/lib/arel.rb | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/activerecord/lib/arel.rb b/activerecord/lib/arel.rb index 7411b5c41b..361cd915cc 100644 --- a/activerecord/lib/arel.rb +++ b/activerecord/lib/arel.rb @@ -39,6 +39,13 @@ module Arel # :nodoc: all value.is_a?(Arel::Node) || value.is_a?(Arel::Attribute) || value.is_a?(Arel::Nodes::SqlLiteral) end + def self.fetch_attribute(value) + case value + when Arel::Nodes::Between, Arel::Nodes::In, Arel::Nodes::NotIn, Arel::Nodes::Equality, Arel::Nodes::NotEqual, Arel::Nodes::LessThan, Arel::Nodes::LessThanOrEqual, Arel::Nodes::GreaterThan, Arel::Nodes::GreaterThanOrEqual + yield value.left.is_a?(Arel::Attributes::Attribute) ? value.left : value.right + end + end + ## Convenience Alias Node = Arel::Nodes::Node end |