diff options
Diffstat (limited to 'activerecord/lib/active_record/base.rb')
-rw-r--r-- | activerecord/lib/active_record/base.rb | 46 |
1 files changed, 29 insertions, 17 deletions
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index bccf1b9b77..d1d3888de2 100644 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -702,10 +702,36 @@ module ActiveRecord #:nodoc: (parents.detect{ |p| p.respond_to?(:table_name_prefix) } || self).table_name_prefix end - # Defines the column name for use with single table inheritance. Use - # <tt>set_inheritance_column</tt> to set a different value. + # The name of the column containing the object's class when Single Table Inheritance is used def inheritance_column - @inheritance_column ||= "type" + if self == Base + 'type' + else + defined?(@inheritance_column) ? @inheritance_column : superclass.inheritance_column + end + end + + # Sets the value of inheritance_column + def inheritance_column=(value) + @inheritance_column = value.to_s + end + + def set_inheritance_column(value = nil, &block) #:nodoc: + if block + ActiveSupport::Deprecation.warn( + "Calling set_inheritance_column is deprecated. If you need to lazily evaluate " \ + "the inheritance column, define your own `self.inheritance_column` class method. You can use `super` " \ + "to get the default inheritance column where you would have called `original_inheritance_column`." + ) + + define_attr_method :inheritance_column, value, &block + else + ActiveSupport::Deprecation.warn( + "Calling set_inheritance_column is deprecated. Please use `self.inheritance_column = 'the_name'` instead." + ) + + self.inheritance_column = value + end end # Lazy-set the sequence name to the connection's default. This method @@ -720,20 +746,6 @@ module ActiveRecord #:nodoc: default end - # Sets the name of the inheritance column to use to the given value, - # or (if the value # is nil or false) to the value returned by the - # given block. - # - # class Project < ActiveRecord::Base - # set_inheritance_column do - # original_inheritance_column + "_id" - # end - # end - def set_inheritance_column(value = nil, &block) - define_attr_method :inheritance_column, value, &block - end - alias :inheritance_column= :set_inheritance_column - # Sets the name of the sequence to use when generating ids to the given # value, or (if the value is nil or false) to the value returned by the # given block. This is required for Oracle and is useful for any |