Module: Encodable::ActiveRecord::InstanceMethods

Defined in:
lib/encodable/active_record/instance_methods.rb

Instance Method Summary collapse

Instance Method Details

#as_json(name = nil, options = nil) ⇒ Object 



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# File 'lib/encodable/active_record/instance_methods.rb', line 4

def as_json(name = nil, options = nil)
  case name
  when Hash, NilClass
    options = name
  when String, Symbol
    (options ||= {}).merge! :as => name
  end
  super options
end

#serializable_hash(options = {}) ⇒ Object 



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# File 'lib/encodable/active_record/instance_methods.rb', line 14

def serializable_hash(options = {})
  options ||= {}
  options[:as] ||= :default

  original_except = if options[:except]
    options[:except] = Array(options[:except]).map(&:to_sym)
  else
    options[:except] = []
  end

  # Convert :only to :except
  if options && options[:only]
    options[:except].push *self.class.default_attributes(options[:as]) - Array(options.delete(:only).map(&:to_sym))
  end

  # This is a little bit confusing. ActiveRecord's default behavior is to apply the :except arguments you pass
  # in to any :include options UNLESS it's overridden on the :include option. In the event that we have some
  # *default* excepts that come from Encodable, we want to ignore those and pass only whatever the original
  # :except options from the user were on down to the :include guys.
  inherited_except = original_except - self.class.default_attributes(options[:as])
  case options[:include]
  when Array, Symbol
    # Convert includes arrays or singleton symbols into a hash with our original_except scope
    includes = Array(options[:include])
    options[:include] = Hash[*includes.map{|association| [association, {:except => inherited_except}]}.flatten]
  else
    options[:include] ||= {}
  end
  # Exclude the black-list
  options[:except].push *self.class.unencodable_attributes(options[:as])
  # Include any default :include or :methods arguments that were passed in earlier
  self.class.default_attributes(options[:as]).each do |attribute, as|
    unless options[:except].include?(attribute)
      if association = self.class.reflect_on_association(attribute)
        options[:include][attribute] = {:except => inherited_except}
      elsif respond_to?(attribute) && !self.class.column_names.include?(attribute.to_s)
        options[:methods] ||= Array(options[:methods]).compact
        options[:methods].push attribute
      end
    end
  end
  as_json = super(options)
  self.class.renamed_encoded_attributes(options[:as]).each do |attribute, as|
    if as_json.has_key?(attribute) || as_json.has_key?(attribute.to_s)
      as_json[as.to_s] = as_json.delete(attribute) || as_json.delete(attribute.to_s)
    end
  end
  as_json
end