method

join_table_name

Ruby on Rails latest stable (v3.2.13) - 0 notes - Class: HasAndBelongsToMany

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What's this?

join_table_name(first_table_name, second_table_name) private

Generates a join table name from two provided table names. The names in the join table names end up in lexicographic order.

join_table_name("members", "clubs")         # => "clubs_members"
join_table_name("members", "special_clubs") # => "members_special_clubs"

Show source

# File activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb, line 47
      def join_table_name(first_table_name, second_table_name)
        if first_table_name < second_table_name
          join_table = "#{first_table_name}_#{second_table_name}"
        else
          join_table = "#{second_table_name}_#{first_table_name}"
        end

        model.table_name_prefix + join_table + model.table_name_suffix
      end

join_table_name

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