Class: Croesus::Validator::HashValidator

Inherits:
Base show all
Defined in:
lib/croesus/validators/hash_validator.rb

Overview

Author: Stefano Harding <[email protected]>

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

#name

Instance Method Summary collapse

Methods inherited from Base

#presence_error_message

Constructor Details

#initialize ⇒ HashValidator

Returns a new instance of HashValidator.



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# File 'lib/croesus/validators/hash_validator.rb', line 21

def initialize
  super('hash')
end

Instance Method Details

#should_validate?(item) ⇒ Boolean

Returns:



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# File 'lib/croesus/validators/hash_validator.rb', line 25

def should_validate?(item)
  item.is_a?(Hash)
end

#validate(key, value, validations, errors) ⇒ Object 



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# File 'lib/croesus/validators/hash_validator.rb', line 29

def validate(key, value, validations, errors)
  # Validate hash
  unless value.is_a?(Hash)
    errors[key] = presence_error_message
    return
  end

  # Hashes can contain sub-elements, attempt to validator those
  errors = (errors[key] = {})

  validations.each do |v_key, v_value|
    Croesus.validator_for(v_value).validate(
      v_key, value[v_key], v_value, errors
    )
  end

  # Cleanup errors (remove any empty nested errors)
  errors.delete_if { |k,v| v.empty? }
end