Class: Croesus::Validator::LambdaValidator
- Defined in:
- lib/croesus/validators/lambda_validator.rb
Overview
Author: Stefano Harding <riddopic@gmail.com>
Copyright © 2014 Stefano Harding
Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
Instance Attribute Summary
Attributes inherited from Base
Instance Method Summary collapse
-
#initialize ⇒ LambdaValidator
constructor
A new instance of LambdaValidator.
- #presence_error_message ⇒ Object
- #should_validate?(item) ⇒ Boolean
- #validate(key, value, lambda, errors) ⇒ Object
Constructor Details
#initialize ⇒ LambdaValidator
Returns a new instance of LambdaValidator.
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# File 'lib/croesus/validators/lambda_validator.rb', line 21 def initialize super('_lambda') # The name of the validator, underscored as it won't usually be directly invoked (invoked through use of validator) end |
Instance Method Details
#presence_error_message ⇒ Object
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# File 'lib/croesus/validators/lambda_validator.rb', line 40 def 'is not valid' end |
#should_validate?(item) ⇒ Boolean
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# File 'lib/croesus/validators/lambda_validator.rb', line 25 def should_validate?(item) if item.is_a?(Proc) if item.arity == 1 true else raise InvalidArgumentCount.new( "Lambda validator should only accept one argument; " \ "supplied lambda accepts #{item.arity}." ) end else false end end |
#validate(key, value, lambda, errors) ⇒ Object
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# File 'lib/croesus/validators/lambda_validator.rb', line 44 def validate(key, value, lambda, errors) unless lambda.call(value) errors[key] = end rescue errors[key] = end |