Module: DataMapper::Is::Select
- Defined in:
- lib/is/select.rb
Overview
dm-is-select
A DataMapper plugin that makes getting the options from a Model easier.
Defined Under Namespace
Modules: ClassMethods
Constant Summary collapse
- VERSION =
IO.read("#{File.dirname(__FILE__)}/../../VERSION").chomp
Instance Method Summary collapse
-
#is_select(select_field = :name, options = {}) ⇒ Object
Defines the field to use for the select menu.
Instance Method Details
#is_select(select_field = :name, options = {}) ⇒ Object
Defines the field to use for the select menu
Params
- :field_name => the name of the field values shown in select
- :options
- :is_tree => whether if the current Model is an is :tree model. (Defaults to false)
Examples
is :select, :name
=> creates a <select> options array on the :name attribute of the model
is :select, :name, :is_tree => true
=> creates a <select> options array with the results ordered in hierarchical order
parent > child > grandchild for each parent
is :select, :name, :value_field => :code
=> creates a <select> options array with the results ordered in hierarchical order
parent > child > grandchild for each parent
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# File 'lib/is/select.rb', line 39 def is_select(select_field = :name, = {}) raise ArgumentError, "The :select_field, must be an existing attribute in the Model. Got [ #{select_field.inspect} ]" unless properties.any?{ |p| p.name == select_field.to_sym } @select_options = { :value_field => "id", # add specical features if we are working with Tree Model :is_tree => false }.merge() @select_field = select_field @value_field = @select_options[:value_field] # Add class & Instance methods extend DataMapper::Is::Select::ClassMethods # include DataMapper::Is::Select::InstanceMethods end |