Class: SimpleParams::ValidationBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/simple_params/validation_builder.rb

Instance Method Summary collapse

Constructor Details

#initialize(name, opts = {}) ⇒ ValidationBuilder

Returns a new instance of ValidationBuilder.



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# File 'lib/simple_params/validation_builder.rb', line 3

def initialize(name, opts={})
  @name = name
  @opts = opts
end

Instance Method Details

#validation_string ⇒ Object 



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# File 'lib/simple_params/validation_builder.rb', line 8

def validation_string
  validations = @opts[:validations] || {}
  has_default = @opts.has_key?(:default) # checking has_key? because :default may be nil
  optional = @opts[:optional]
  if !validations.empty?
    if optional || has_default
      validations.merge!(allow_nil: true)
    else
      validations.merge!(presence: true)
    end
  else
    if !optional && !has_default
      validations.merge!(presence: true)
    end
  end

  if validations.empty?
    return  ''
  else
    return "validates :#{@name.to_sym}, #{validations}"
  end
end