Class: Mongoid::Relations::Builders::Referenced::One

Inherits:

Mongoid::Relations::Builder

• Object
• Mongoid::Relations::Builder
• Mongoid::Relations::Builders::Referenced::One

Defined in:

lib/mongoid/relations/builders/referenced/one.rb

Overview

Since:

• 2.0.0.rc.1

Instance Attribute Summary

Attributes inherited from Mongoid::Relations::Builder

#base, #metadata, #object

Instance Method Summary

• #build(type = nil) ⇒ Document

  This builder either takes an _id or an object and queries for the inverse side using the id or sets the object.

Methods inherited from Mongoid::Relations::Builder

#initialize

Constructor Details

This class inherits a constructor from Mongoid::Relations::Builder

Instance Method Details

#build(type = nil) ⇒ Document

This builder either takes an _id or an object and queries for the inverse side using the id or sets the object.

Examples:

Build the document.

Builder.new(meta, attrs).build

Parameters:

• type (String) (defaults to: nil) —

  The type of document to query for.

Returns:

• (Document) —

  A single document.

Since:

• 2.0.0.rc.1

# File 'lib/mongoid/relations/builders/referenced/one.rb', line 17

def build(type = nil)
  return object unless query?
  return nil if base.new_record?
  metadata.criteria(Conversions.flag(object, metadata), base.class).from_map_or_db
end