Module: ActiveRepository::Associations::Methods

Defined in:
lib/active_repository/associations.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#belongs_to(association_id, options = {}) ⇒ Object

Defines “belongs to” type relation between ActiveRepository objects



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# File 'lib/active_repository/associations.rb', line 79

def belongs_to(association_id, options = {})
  options = {
    class_name:  association_id.to_s.classify,
    foreign_key: association_id.to_s.foreign_key
  }.merge(options)

  field options[:foreign_key].to_sym

  define_method(association_id) do
    klass = options[:class_name].constantize
    id    = send(options[:foreign_key])

    if id.present?
      object = klass.find_by_id(id)
    else
      nil
    end
  end

  define_method("#{association_id}=") do |new_value|
    attributes.delete(association_id.to_sym)
    send("#{options[:foreign_key]}=", (new_value.try(:id) ? new_value.id : new_value))
  end
end

#has_many(association_id, options = {}) ⇒ Object

Defines “has many” type relation between ActiveRepository objects



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# File 'lib/active_repository/associations.rb', line 42

def has_many(association_id, options = {})
  define_method(association_id) do
    options = {
      class_name:  association_id.to_s.classify,
      foreign_key: self.class.to_s.foreign_key
    }.merge(options)

    klass = options[:class_name].constantize
    objects = []

    if klass.respond_to?(:scoped)
      objects = klass.scoped(:conditions => {options[:foreign_key] => id})
    else
      objects = klass.send("find_all_by_#{options[:foreign_key]}", id)
    end
  end
end

#has_one(association_id, options = {}) ⇒ Object

Defines “has one” type relation between ActiveRepository objects



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# File 'lib/active_repository/associations.rb', line 61

def has_one(association_id, options = {})
  define_method(association_id) do
    options = {
      class_name:  association_id.to_s.classify,
      foreign_key: self.class.to_s.foreign_key
    }.merge(options)

    scope = options[:class_name].constantize

    if scope.respond_to?(:scoped) && options[:conditions]
      scope = scope.scoped(:conditions => options[:conditions])
    end
    
    scope.send("find_by_#{options[:foreign_key]}", id)
  end
end