Module: Mongoid::Document::ClassMethods

Defined in:
lib/mongoid/document.rb

Instance Method Summary collapse

Instance Method Details

#_mongoid_clear_types ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Clear the @_type cache. This is generally called when changing the discriminator key/value on a class.

Examples:

Get the types.

document._mongoid_clear_types


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# File 'lib/mongoid/document.rb', line 307

def _mongoid_clear_types
  @_type = nil
  superclass._mongoid_clear_types if hereditary?
end

#_types ⇒ Array<Class>

Returns all types to query for when using this class as the base.

Examples:

Get the types.

document._types

Returns:

  • (Array<Class>) —

    All subclasses of the current document.



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# File 'lib/mongoid/document.rb', line 296

def _types
  @_type ||= (descendants + [ self ]).uniq.map(&:discriminator_value)
end

#i18n_scope ⇒ Symbol

Set the i18n scope to overwrite ActiveModel.

Returns:

  • (Symbol) —

    :mongoid



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# File 'lib/mongoid/document.rb', line 315

def i18n_scope
  :mongoid
end

#instantiate(attrs = nil, selected_fields = nil) {|doc| ... } ⇒ Document

Instantiate a new object, only when loaded from the database or when the attributes have already been typecast.

Examples:

Create the document.

Person.instantiate(:title => "Sir", :age => 30)

Parameters:

  • attrs (Hash) (defaults to: nil) —

    The hash of attributes to instantiate with.

  • selected_fields (Integer) (defaults to: nil) —

    The selected fields from the criteria.

Yields:

  • (doc)

Returns:



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# File 'lib/mongoid/document.rb', line 278

def instantiate(attrs = nil, selected_fields = nil)
  attributes = attrs || {}
  doc = allocate
  doc.__selected_fields = selected_fields
  doc.instance_variable_set(:@attributes, attributes)
  doc.apply_defaults
  yield(doc) if block_given?
  doc.run_callbacks(:find) unless doc._find_callbacks.empty?
  doc.run_callbacks(:initialize) unless doc._initialize_callbacks.empty?
  doc
end

#logger ⇒ Logger

Returns the logger

Examples:

Get the logger.

Person.logger

Returns:

  • (Logger) —

    The configured logger or a default Logger instance.



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# File 'lib/mongoid/document.rb', line 325

def logger
  Mongoid.logger
end