diff options
Diffstat (limited to 'activerecord/lib/active_record/attribute_methods.rb')
| -rw-r--r-- | activerecord/lib/active_record/attribute_methods.rb | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb index 1dd9a3d45d..437fd00948 100644 --- a/activerecord/lib/active_record/attribute_methods.rb +++ b/activerecord/lib/active_record/attribute_methods.rb @@ -59,7 +59,7 @@ module ActiveRecord raise DangerousAttributeError, "#{method_name} is defined by ActiveRecord" end - if [Base, Model].include?(active_record_super) + if superclass == Base super else # If B < A and A defines its own attribute method, then we don't want to overwrite that. @@ -269,17 +269,24 @@ module ActiveRecord end # Returns the value of the attribute identified by <tt>attr_name</tt> after it has been typecast (for example, - # "2004-12-12" in a data column is cast to a date object, like Date.new(2004, 12, 12)). - # (Alias for <tt>read_attribute</tt>). + # "2004-12-12" in a data column is cast to a date object, like Date.new(2004, 12, 12)). It raises + # <tt>ActiveModel::MissingAttributeError</tt> if the identified attribute is missing. + # + # Alias for the <tt>read_attribute</tt> method. # # class Person < ActiveRecord::Base + # belongs_to :organization # end # # person = Person.new(name: 'Francesco', age: '22') # person[:name] # => "Francesco" # person[:age] # => 22 + # + # person = Person.select('id').first + # person[:name] # => ActiveModel::MissingAttributeError: missing attribute: name + # person[:organization_id] # => ActiveModel::MissingAttributeError: missing attribute: organization_id def [](attr_name) - read_attribute(attr_name) + read_attribute(attr_name) { |n| missing_attribute(n, caller) } end # Updates the attribute identified by <tt>attr_name</tt> with the specified +value+. |