Module: Mongoid::Fields::ClassMethods

Defined in:
lib/mongoid/fields.rb

Overview

:nodoc

Instance Method Summary collapse

Instance Method Details

#defaults ⇒ Hash

Returns the default values for the fields on the document.

Examples:

Get the defaults.

Person.defaults

Returns:

  • (Hash) —

    The field defaults.



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# File 'lib/mongoid/fields.rb', line 71

def defaults
  fields.inject({}) do |defs, (field_name,field)|
    next(defs) if field.default.nil?
    defs[field_name.to_s] = field.default
    defs
  end
end

#field(name, options = {}) ⇒ Object

Defines all the fields that are accessible on the Document For each field that is defined, a getter and setter will be added as an instance method to the Document.

Examples:

Define a field.

field :score, :type => Integer, :default => 0

Parameters:

  • name (Symbol) —

    The name of the field.

  • options (Hash) (defaults to: {}) —

    The options to pass to the field.

Options Hash (options):

  • :type (Class) —

    The type of the field.

  • :label (String) —

    The label for the field.

  • :default (Object, Proc) —

    The field’s default



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# File 'lib/mongoid/fields.rb', line 35

def field(name, options = {})
  access = name.to_s
  set_field(access, options)
  attr_protected name if options[:accessible] == false
end

#fields ⇒ Hash

Return the fields for this class.

Examples:

Get the fields.

Person.fields

Returns:

  • (Hash) —

    The fields for this document.

Since:

  • 2.0.0.rc.6



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# File 'lib/mongoid/fields.rb', line 49

def fields
  @fields ||= {}
end

#fields=(fields) ⇒ Object

Set the fields for the class.

Examples:

Set the fields.

Person.fields = fields

Parameters:

  • fields (Hash) —

    The hash of fields to set.

Since:

  • 2.0.0.rc.6



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# File 'lib/mongoid/fields.rb', line 61

def fields=(fields)
  @fields = fields
end

#inherited(subclass) ⇒ Object

When inheriting, we want to copy the fields from the parent class and set the on the child to start, mimicking the behaviour of the old class_inheritable_accessor that was deprecated in Rails edge.

Examples:

Inherit from this class.

Person.inherited(Doctor)

Parameters:

  • subclass (Class) —

    The inheriting class.

Since:

  • 2.0.0.rc.6



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# File 'lib/mongoid/fields.rb', line 89

def inherited(subclass)
  super
  subclass.fields = fields.dup
end