method

column_alias_for

Ruby on Rails latest stable (v6.1.7.7) - 0 notes - Class: ActiveRecord::Calculations::ClassMethods

1.0.0
1.1.6 (0)
1.2.6 (2)
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2.1.0 (18)
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What's this?

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v2.3.8) is shown here.

These similar methods exist in v6.1.7.7:

ActiveRecord::Calculations#column_alias_for

column_alias_for(*keys) private

Converts the given keys to the value that the database adapter returns as a usable column name:

  column_alias_for("users.id")                 # => "users_id"
  column_alias_for("sum(id)")                  # => "sum_id"
  column_alias_for("count(distinct users.id)") # => "count_distinct_users_id"
  column_alias_for("count(*)")                 # => "count_all"
  column_alias_for("count", "id")              # => "count_id"

Show source

# File activerecord/lib/active_record/calculations.rb, line 280
        def column_alias_for(*keys)
          table_name = keys.join(' ')
          table_name.downcase!
          table_name.gsub!(/\*/, 'all')
          table_name.gsub!(/\W+/, ' ')
          table_name.strip!
          table_name.gsub!(/ +/, '_')

          connection.table_alias_for(table_name)
        end

column_alias_for

Related methods

Method deprecated or moved

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