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Add tests and documentation for allow_blank. Closes #10651 [blj]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8733 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
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1 parent 8ef3dff commit 176abc842c43fc803d41efa429456a2ea8e7296d @NZKoz NZKoz committed Jan 26, 2008
Showing with 10 additions and 0 deletions.
  1. +2 −0 activerecord/lib/active_record/validations.rb
  2. +8 −0 activerecord/test/cases/validations_test.rb
@@ -684,6 +684,8 @@ def validates_uniqueness_of(*attr_names)
#
# Configuration options:
# * <tt>message</tt> - A custom error message (default is: "is invalid")
+ # * <tt>allow_nil</tt> - If set to true, skips this validation if the attribute is null (default is: false)
+ # * <tt>allow_blank</tt> - If set to true, skips this validation if the attribute is blank (default is: false)
# * <tt>with</tt> - The regular expression used to validate the format with (note: must be supplied!)
# * <tt>on</tt> Specifies when this validation is active (default is :save, other options :create, :update)
# * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
@@ -489,6 +489,14 @@ def test_validate_format
assert_raise(ArgumentError) { Topic.validates_format_of(:title, :content) }
end
+ def test_validate_format_with_allow_blank
+ Topic.validates_format_of(:title, :with => /^Validation\smacros \w+!$/, :allow_blank=>true)
+ assert !Topic.create("title" => "Shouldn't be valid").valid?
+ assert Topic.create("title" => "").valid?
+ assert Topic.create("title" => nil).valid?
+ assert Topic.create("title" => "Validation macros rule!").valid?
+ end
+
# testing ticket #3142
def test_validate_format_numeric
Topic.validates_format_of(:title, :content, :with => /^[1-9][0-9]*$/, :message => "is bad data")

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