Remove useless code in #attribute_present? since 0 != blank?. Closes #…

…7249 [Josh Susser]. Fix minor doc typos. Closes #7157 [Josh Susser]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6018 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/CHANGELOG

@@ -1,5 +1,9 @@
 *SVN*
 
+* Remove useless code in #attribute_present? since 0 != blank?.  Closes #7249 [Josh Susser]
+
+* Fix minor doc typos. Closes #7157 [Josh Susser]
+
 * Fix incorrect usage of #classify when creating the eager loading join statement.  Closes #7044 [Josh Susser]
 
 * SQLServer: quote table name in indexes query.  #2928 [keithm@infused.org]

activerecord/lib/active_record/associations.rb

@@ -98,7 +98,7 @@ def clear_association_cache #:nodoc:
     # ActiveRecord associations can be used to describe relations with one-to-one, one-to-many
     # and many-to-many cardinality. Each model uses an association to describe its role in
     # the relation. In each case, the belongs_to association is used in the model that has
-    # the foreign key
+    # the foreign key.
     #
     # === One-to-one
     #
@@ -119,7 +119,7 @@ def clear_association_cache #:nodoc:
     #     has_many :employees
     #   end
     #   class Employee < ActiveRecord::Base
-    #     belongs_to :manager     # foreign key - employee_id
+    #     belongs_to :manager     # foreign key - manager_id
     #   end
     #
     # === Many-to-many

activerecord/lib/active_record/base.rb

@@ -1712,7 +1712,7 @@ def attributes_before_type_cast
       # nil nor empty? (the latter only applies to objects that respond to empty?, most notably Strings).
       def attribute_present?(attribute)
         value = read_attribute(attribute)
-        !value.blank? or value == 0
+        !value.blank?
       end
 
       # Returns true if the given attribute is in the attributes hash