module Mongoid::Factory
Instantiates documents that came from the database.
Constants
- TYPE
Public Instance Methods
build(klass, attributes = nil)
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Builds a new Document
from the supplied attributes.
@example Build the document.
Mongoid::Factory.build(Person, { "name" => "Durran" })
@param [ Class ] klass The class to instantiate from if _type is not present. @param [ Hash ] attributes The document attributes.
@return [ Document ] The instantiated document.
# File lib/mongoid/factory.rb, line 18 def build(klass, attributes = nil) attributes ||= {} type = attributes[TYPE] || attributes[TYPE.to_sym] if type && klass._types.include?(type) type.constantize.new(attributes) else klass.new(attributes) end end
from_db(klass, attributes = nil, criteria = nil)
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Builds a new Document
from the supplied attributes loaded from
the database.
@example Build the document.
Mongoid::Factory.from_db(Person, { "name" => "Durran" })
@param [ Class ] klass The class to instantiate from if _type is not present. @param [ Hash ] attributes The document attributes. @param [ Array ] selected_fields If instantiated from a criteria using
#only we give the document a list of the selected fields.
@return [ Document ] The instantiated document.
# File lib/mongoid/factory.rb, line 40 def from_db(klass, attributes = nil, criteria = nil) selected_fields = criteria.options[:fields] if criteria type = (attributes || {})[TYPE] if type.blank? obj = klass.instantiate(attributes, selected_fields) if criteria && criteria.association && criteria.parent_document obj.set_relation(criteria.association.inverse, criteria.parent_document) end obj else camelized = type.camelize begin camelized.constantize.instantiate(attributes, selected_fields) rescue NameError raise Errors::UnknownModel.new(camelized, type) end end end