Class: DMV::Form

Inherits:
Object
  • Object
show all
Extended by:
Uber::InheritableAttr
Defined in:
lib/dmv/form.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attributes = {}) ⇒ Form

Initialize a new form instance from values

Parameters:

  • attributes (defaults to: {}) —

    A hash of attributes to be set



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# File 'lib/dmv/form.rb', line 55

def initialize attributes = {}
  @attributes = {}
  attributes.each { |attribute, value| set attribute, value }
end

Instance Attribute Details

#attributes ⇒ Object (readonly)

Returns the value of attribute attributes.



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# File 'lib/dmv/form.rb', line 15

def attributes
  @attributes
end

Class Method Details

.attribute(*names) ⇒ Object

Adds an attribute to the forms attributes set and creates accessors

Parameters:

  • name —

    The name of the attribute

  • options (Hash) —

    The options for this attribute (type for example)



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# File 'lib/dmv/form.rb', line 21

def self.attribute *names
  options = names.last.kind_of?(Hash) ? names.pop : {}

  names.each do |name|
    name = name.to_sym

    if _attributes.keys.include?(name)
      raise AttributeAlreadyDefined, "the attribute #{name} has already been defined"
    end

    _attributes[name] = options.freeze
    class_eval <<-ATTR, __FILE__, __LINE__ + 1
      def #{name}
        get(:#{name})
      end

      def #{name}=(value)
        set(:#{name}, value)
      end
    ATTR
  end
end

.attributes ⇒ Object

Returns a cloned frozen hash containing the details of the attributes on this form



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# File 'lib/dmv/form.rb', line 48

def self.attributes
  _attributes.clone.freeze
end

Instance Method Details

#get(attribute) ⇒ Object

Retrieve the value for an attribute

Parameters:

  • attribute (Symbol) —

    Name of an attribute

Returns:

  • attribute value



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# File 'lib/dmv/form.rb', line 72

def get attribute
  attributes[attribute]
end

#set(attribute, value) ⇒ Object

Sets an attribute value and performs any coercions needed

Parameters:

  • attribute —

    The name of an attribute

  • value —

    The value you would like to set the attribute to



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# File 'lib/dmv/form.rb', line 64

def set attribute, value
  attributes[attribute] = value
end