Changeset 8280

Timestamp:

12/05/07 14:22:26 (5 months ago)

Author:

marcel

Message:

Document automatically generated predicate methods for attributes. Closes #10373 [chuyeow]

Files:

• trunk/activerecord/CHANGELOG (modified) (1 diff)
• trunk/activerecord/lib/active_record/base.rb (modified) (1 diff)

trunk/activerecord/CHANGELOG

@@ -1 +1 @@
-*SVN*
+
+* Document automatically generated predicate methods for attributes. Closes #10373 [chuyeow]
-
-* Added ActiveRecord::Base#becomes to turn a record into one of another class (mostly relevant for STIs) [DHH]. Example:

trunk/activerecord/lib/active_record/base.rb

@@ -155 +155 @@
-  # You can alternatively use self[:attribute]=(value) and self[:attribute] instead of write_attribute(:attribute, value) and
-  # read_attribute(:attribute) as a shorter form.
+  #
+  # == Attribute query methods
+  #
+  # In addition to the basic accessors, query methods are also automatically available on the Active Record object.
+  # Query methods allow you to test whether an attribute value is present.
+  # 
+  # For example, an Active Record User with the <tt>name</tt> attribute has a <tt>name?</tt> method that you can call
+  # to determine whether the user has a name:
+  #
+  #   user = User.new(:name => "David")
+  #   user.name? # => true
+  #
+  #   anonymous = User.new(:name => "")
+  #   anonymous.name? # => false
-  #
-  # == Accessing attributes before they have been typecasted