instance method `arel_columns`

Ruby on Rails 5.2.8.1

Since v4.1.16 Last seen in v8.0.4 Private

Available in: v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4

Compare with:

arel_columns(columns)

No documentation comment.

Parameters

columns req

Source

# File activerecord/lib/active_record/relation/query_methods.rb, line 1049
      def arel_columns(columns)
        columns.flat_map do |field|
          case field
          when Symbol
            arel_column(field.to_s) do |attr_name|
              connection.quote_table_name(attr_name)
            end
          when String
            arel_column(field, &:itself)
          when Proc
            field.call
          else
            field
          end
        end
      end

Defined in activerecord/lib/active_record/relation/query_methods.rb line 1049 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::QueryMethods

Signature

Parameters