Class: Formeze::Validation

Inherits:
Object
  • Object
show all
Includes:
Presence
Defined in:
lib/formeze/validation.rb

Constant Summary

Constants included from Presence

Presence::REGEXP

Instance Method Summary collapse

Methods included from Presence

#blank?, #present?

Constructor Details

#initialize(field, **kwargs, &block) ⇒ Validation

Returns a new instance of Validation.



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# File 'lib/formeze/validation.rb', line 4

def initialize(field, **kwargs, &block)
  @field = field

  @error = kwargs[:error] || :invalid

  @precondition = kwargs[:if]

  @block = block
end

Instance Method Details

#field_errors?(form) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/formeze/validation.rb', line 22

def field_errors?(form)
  form.errors_on?(@field.name)
end

#field_value?(form) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/formeze/validation.rb', line 18

def field_value?(form)
  present?(form.send(@field.name))
end

#validate(form) ⇒ Object 



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# File 'lib/formeze/validation.rb', line 26

def validate(form)
  if validates?(form) && field_value?(form) && !field_errors?(form)
    return_value = if @block.arity == 1
      @block.call(form.send(@field.name))
    else
      form.instance_eval(&@block)
    end

    form.add_error(@field, @error) unless return_value
  end
end

#validates?(form) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/formeze/validation.rb', line 14

def validates?(form)
  @precondition ? Formeze::Block.evaluate(form, @precondition) : true
end