Addded validation for validate all the associated objects before decl…

…aring failure with validates_associated #618 [Tim Bates]. Added that validates_* now accept blocks to perform validations #618 [Tim Bates]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@650 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/CHANGELOG

@@ -1,5 +1,13 @@
 *SVN*
 
+* Added that validates_* now accept blocks to perform validations #618 [Tim Bates]. Example:
+
+    class Person < ActiveRecord::Base
+      validate { |person| person.errors.add("title", "will never be valid") if SHOULD_NEVER_BE_VALID }
+    end
+
+* Addded validation for validate all the associated objects before declaring failure with validates_associated #618 [Tim Bates]
+
 * Added keyword-style approach to defining the custom relational bindings #545 [Jamis Buck]. Example:
 
     class Project < ActiveRecord::Base

activerecord/lib/active_record/validations.rb

@@ -51,7 +51,7 @@ def self.append_features(base) # :nodoc:
         alias_method :update_attribute_without_validation_skipping, :update_attribute
         alias_method :update_attribute, :update_attribute_with_validation_skipping
 
-        VALIDATIONS.each { |vd| base.class_eval("def self.#{vd}(*methods) write_inheritable_array(\"#{vd}\", methods - (read_inheritable_attribute(\"#{vd}\") || [])) end") }
+        VALIDATIONS.each { |vd| base.class_eval("def self.#{vd}(*methods, &block) write_inheritable_array(\"#{vd}\", methods + [block].compact - (read_inheritable_attribute(\"#{vd}\") || [])) end") }
       end
 
       base.extend(ClassMethods)
@@ -300,7 +300,7 @@ def validates_associated(*attr_names)
         for attr_name in attr_names
           class_eval(%(#{validation_method(configuration[:on])} %{
             errors.add("#{attr_name}", "#{configuration[:message]}") unless
-              (#{attr_name}.is_a?(Array) ? #{attr_name} : [#{attr_name}]).inject(true){ |memo, record| memo and (record.nil? or record.valid?) }
+              (#{attr_name}.is_a?(Array) ? #{attr_name} : [#{attr_name}]).inject(true){ |memo, record| (record.nil? or record.valid?) and memo }
           }))
         end
       end
@@ -378,7 +378,7 @@ def run_validations(validation_method)
             eval(validation, binding)
           elsif validation_block?(validation)
             validation.call(self)
-          elsif filter_class?(validation, validation_method)
+          elsif validation_class?(validation, validation_method)
             validation.send(validation_method, self)
           else
             raise(

activerecord/test/validations_test.rb

@@ -392,10 +392,12 @@ def test_validates_length_of_custom_errors_for_is_with_wrong_length
   def test_validates_associated_many
     Topic.validates_associated( :replies )
     t = Topic.create("title" => "uhohuhoh", "content" => "whatever")
-    t.replies << [r = Reply.create("title" => "A reply"), Reply.create("title" => "Another reply", "content" => "with content!")]
+    t.replies << [r = Reply.create("title" => "A reply"), r2 = Reply.create("title" => "Another reply")]
     assert !t.valid?
     assert t.errors.on(:replies)
-    r.content = "non-empty"
+    assert_equal 1, r.errors.count  # make sure all associated objects have been validated
+    assert_equal 1, r2.errors.count
+    r.content = r2.content = "non-empty"
     assert t.valid?
   end
 
@@ -410,6 +412,19 @@ def test_validates_associated_one
     assert r.valid?
   end
 
+  def test_validate_block
+    Topic.validate { |topic| topic.errors.add("title", "will never be valid") }
+    t = Topic.create("title" => "Title", "content" => "whatever")
+    assert !t.valid?
+    assert t.errors.on(:title)
+    assert_equal "will never be valid", t.errors["title"]
+  end
+
+  def test_invalid_validator
+    Topic.validate 3
+    assert_raise(ActiveRecord::ActiveRecordError) { t = Topic.create }
+  end
+
   def test_throw_away_typing
     d = Developer.create "name" => "David", "salary" => "100,000"
     assert !d.valid?