Class: ActiveData::Model::Associations::Reflections::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/active_data/model/associations/reflections/base.rb

Direct Known Subclasses

EmbedsMany, EmbedsOne, ReferenceReflection

Constant Summary collapse

READ = 
->(reflection, object) { object.read_attribute reflection.name }
WRITE = 
->(reflection, object, value) { object.write_attribute reflection.name, value }

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, options = {}) ⇒ Base

Returns a new instance of Base.



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# File 'lib/active_data/model/associations/reflections/base.rb', line 50

def initialize name, options = {}
  @name, @options = name.to_sym, options
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/active_data/model/associations/reflections/base.rb', line 9

def name
  @name
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/active_data/model/associations/reflections/base.rb', line 9

def options
  @options
end

#parent_reflection ⇒ Object

AR compatibility



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# File 'lib/active_data/model/associations/reflections/base.rb', line 11

def parent_reflection
  @parent_reflection
end

Class Method Details

.association_class ⇒ Object 



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# File 'lib/active_data/model/associations/reflections/base.rb', line 46

def self.association_class
  @association_class ||= "ActiveData::Model::Associations::#{name.demodulize}".constantize
end

.build(target, generated_methods, name, options = {}, &block) ⇒ Object 



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# File 'lib/active_data/model/associations/reflections/base.rb', line 14

def self.build target, generated_methods, name, options = {}, &block
  if block
    options[:class] = proc do |reflection|
      superclass = reflection.options[:class_name].to_s.presence.try(:constantize)
      klass = Class.new(superclass || Object) do
        include ActiveData::Model
        include ActiveData::Model::Associations
        include ActiveData::Model::Lifecycle
        include ActiveData::Model::Primary
      end
      target.const_set(name.to_s.classify, klass)
      klass.class_eval(&block)
      klass
    end
  end
  generate_methods name, generated_methods
  target.validates_nested name if options.delete(:validate) && target.respond_to?(:validates_nested)
  new(name, options)
end

.generate_methods(name, target) ⇒ Object 



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# File 'lib/active_data/model/associations/reflections/base.rb', line 34

def self.generate_methods name, target
  target.class_eval "    def \#{name} force_reload = false\n      association(:\#{name}).reader(force_reload)\n    end\n\n    def \#{name}= value\n      association(:\#{name}).writer(value)\n    end\n  RUBY\nend\n", __FILE__, __LINE__ + 1

Instance Method Details

#belongs_to? ⇒ Boolean

Returns:



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# File 'lib/active_data/model/associations/reflections/base.rb', line 64

def belongs_to?
  false
end

#build_association(object) ⇒ Object 



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# File 'lib/active_data/model/associations/reflections/base.rb', line 68

def build_association object
  self.class.association_class.new object, self
end

#default(object) ⇒ Object 



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# File 'lib/active_data/model/associations/reflections/base.rb', line 80

def default object
  defaultizer = options[:default]
  if defaultizer.is_a?(Proc)
    if defaultizer.arity != 0
      defaultizer.call(object)
    else
      object.instance_exec(&defaultizer)
    end
  else
    defaultizer
  end
end

#inspect ⇒ Object 



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# File 'lib/active_data/model/associations/reflections/base.rb', line 93

def inspect
  "#{self.class.name.demodulize}(#{klass})"
end

#klass ⇒ Object 



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# File 'lib/active_data/model/associations/reflections/base.rb', line 58

def klass
  @klass ||= options[:class] ?
    options[:class].call(self) :
    (options[:class_name].presence || name.to_s.classify).to_s.constantize
end

#macro ⇒ Object 



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# File 'lib/active_data/model/associations/reflections/base.rb', line 54

def macro
  self.class.name.demodulize.underscore.to_sym
end

#read_source(object) ⇒ Object 



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# File 'lib/active_data/model/associations/reflections/base.rb', line 72

def read_source object
  (options[:read] || READ).call(self, object)
end

#write_source(object, value) ⇒ Object 



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# File 'lib/active_data/model/associations/reflections/base.rb', line 76

def write_source object, value
  (options[:write] || WRITE).call(self, object, value)
end