Module: AutoBuild::Builder::ClassMethods

Defined in:
lib/auto_build/builder.rb

Instance Method Summary collapse

Instance Method Details

#auto_build(*attr_names) ⇒ Object

Public: This method allows you to auto initialize associations in your models. After calling it you don’t need to call ‘build_association` or `association.build` in your controllers or views. Useful for models that accept nested attributes for associations. It **does not** overwrite associations with existing values.

An ‘after_initialize` hook will be created for each one of the associations.

Signature

auto_build(<field>, <field>, <field>)
auto_build(<field>, <options>)

field - A Symbol with the name of the association you want

initialize

options - A Hash with the options to initialize the

associations. See AutoBuilder::Association#initialize
for the options.

Examples

class User
  has_one :address
  has_many :pictures
  has_many :projects
end

auto_build :address, :pictures
# => Builds a record for each association if none is present

auto_build :projects, :count => 3
# => Builds 3 projects each time you initialize a User

auto_build :pictures, :append => true
# => Builds an extra Picture each time you initialize a User



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# File 'lib/auto_build/builder.rb', line 43

def auto_build(*attr_names)
  options = attr_names.extract_options!
  names = attr_names

  names.map do |name|
    Association.new(self, name, options).add_hook
  end
end