diff options
Diffstat (limited to 'activerecord/lib/arel/expressions.rb')
-rw-r--r-- | activerecord/lib/arel/expressions.rb | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/activerecord/lib/arel/expressions.rb b/activerecord/lib/arel/expressions.rb new file mode 100644 index 0000000000..612a0942f1 --- /dev/null +++ b/activerecord/lib/arel/expressions.rb @@ -0,0 +1,29 @@ +# frozen_string_literal: true +module Arel + module Expressions + def count distinct = false + Nodes::Count.new [self], distinct + end + + def sum + Nodes::Sum.new [self] + end + + def maximum + Nodes::Max.new [self] + end + + def minimum + Nodes::Min.new [self] + end + + def average + Nodes::Avg.new [self] + end + + def extract field + Nodes::Extract.new [self], field + end + + end +end |