instance method
aggregate_column
Ruby on Rails 5.1.7
Since v3.0.20 Private — implementation detail, not part of the public APISignature
aggregate_column(column_name)No documentation comment.
Parameters
-
column_namereq
Source
# File activerecord/lib/active_record/relation/calculations.rb, line 220
def aggregate_column(column_name)
return column_name if Arel::Expressions === column_name
if @klass.has_attribute?(column_name.to_s) || @klass.attribute_alias?(column_name.to_s)
@klass.arel_attribute(column_name)
else
Arel.sql(column_name == :all ? "*" : column_name.to_s)
end
end
Defined in activerecord/lib/active_record/relation/calculations.rb line 220
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Defined in ActiveRecord::Calculations