Class: HashValidator::Validator::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/hash_validator/validators/base.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name) ⇒ Base

Returns a new instance of Base.



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# File 'lib/hash_validator/validators/base.rb', line 7

def initialize(name)
  self.name = name.to_s

  unless self.name.size > 0
    raise StandardError.new("Validator must be initialized with a valid name (length greater than zero)")
  end
end

Instance Attribute Details

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/hash_validator/validators/base.rb', line 4

def name
  @name
end

Instance Method Details

#error_message ⇒ Object 



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# File 'lib/hash_validator/validators/base.rb', line 19

def error_message
  "#{self.name} required"
end

#should_validate?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hash_validator/validators/base.rb', line 15

def should_validate?(name)
  self.name == name.to_s
end

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



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# File 'lib/hash_validator/validators/base.rb', line 23

def validate(key, value, validations, errors)
  # If the subclass implements valid?, use that for simple boolean validation
  if self.class.instance_methods(false).include?(:valid?)
    # Check the arity of the valid? method to determine how many arguments to pass
    valid_result = case method(:valid?).arity
    when 1
      valid?(value)
    when 2
      valid?(value, validations)
    else
      raise StandardError.new("valid? method must accept either 1 argument (value) or 2 arguments (value, validations)")
    end

    unless valid_result
      errors[key] = error_message
    end
  else
    # Otherwise, subclass must override validate
    raise StandardError.new("Validator must implement either valid? or override validate method")
  end
end