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Be able to pass a validator method to #validates

This commit is contained in:
Carl Lerche 2011-02-05 16:33:00 -08:00
parent ed7614aa7d
commit e9e9ed6b60
3 changed files with 22 additions and 0 deletions

View file

@ -8,6 +8,12 @@ module ActiveModel
end
end
class WithValidator < EachValidator
def validate_each(record, attr, val)
record.send options[:with]
end
end
module ClassMethods
# Passes the record off to the class or classes specified and allows them
# to add errors based on more complex conditions.

View file

@ -171,4 +171,16 @@ class ValidatesWithTest < ActiveModel::TestCase
assert topic.errors[:title].empty?
assert topic.errors[:content].empty?
end
test "validates_with can validate with an instance method" do
Topic.validates :title, :with => :my_validation
topic = Topic.new :title => "foo"
assert topic.valid?
assert topic.errors[:title].empty?
topic = Topic.new
assert !topic.valid?
assert_equal ['is missing'], topic.errors[:title]
end
end

View file

@ -29,4 +29,8 @@ class Topic
self.after_validation_performed = true
end
def my_validation
errors.add :title, "is missing" unless title
end
end