| Module | DataMapper::Validate::ValidatesWithBlock |
| In: |
lib/dm-validations/validators/block_validator.rb
|
@author teamon @since 0.9
Validate using the given block. The block given needs to return: [result::<Boolean>, Error Message::<String>]
@example [Usage]
require 'dm-validations'
class Page
include DataMapper::Resource
property :zip_code, String
validates_with_block do
if @zip_code == "94301"
true
else
[false, "You're in the wrong zip code"]
end
end
# A call to valid? will return false and
# populate the object's errors with "You're in the
# wrong zip code" unless zip_code == "94301"
# You can also specify field:
validates_with_block :zip_code do
if @zip_code == "94301"
true
else
[false, "You're in the wrong zip code"]
end
end
# it will add returned error message to :zip_code field