Module: NestedForm::BuilderMixin

Included in:
Builder
Defined in:
lib/nested_form/builder_mixin.rb

Instance Method Summary collapse

Instance Method Details

#fields_for_nested_model(name, object, options, block) ⇒ Object 



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# File 'lib/nested_form/builder_mixin.rb', line 62

def fields_for_nested_model(name, object, options, block)
  %{<div class="fields" id="nested_object_#{name.to_s.gsub(/\[|\]/, '_')}">#{super}</div>}.html_safe
end

#fields_for_with_nested_attributes(association_name, *args) ⇒ Object 



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# File 'lib/nested_form/builder_mixin.rb', line 54

def fields_for_with_nested_attributes(association_name, *args)
  # TODO Test this better
  block = args.pop || Proc.new { |fields| @template.render(:partial => "#{association_name.to_s.singularize}_fields", :locals => {:f => fields}) }
  @fields ||= {}
  @fields[association_name] = block
  super(association_name, *(args << block))
end

#link_to_add(*args, &block) ⇒ Object

Adds a link to insert a new associated records. The first argument is the name of the link, the second is the name of the association.

f.link_to_add("Add Task", :tasks)

You can pass HTML options in a hash at the end and a block for the content.

<%= f.link_to_add(:tasks, :class => "add_task", :href => new_task_path) do %>
  Add Task
<% end %>

See the README for more details on where to call this method.



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# File 'lib/nested_form/builder_mixin.rb', line 14

def link_to_add(*args, &block)
  options = args.extract_options!.symbolize_keys
  association = args.pop
  parent_names = (object_name.scan(/([a-z_]+_attributes)/)).flatten
  blueprint_name = (parent_names << association).join('_') + '_fields_blueprint'
  options[:class] = [options[:class], "add_nested_fields"].compact.join(" ")
  options["data-association"] = association
  options["data-blueprint_name"] = blueprint_name
  args << (options.delete(:href) || "javascript:void(0)")
  args << options
  @fields ||= {}
  @template.after_nested_form(blueprint_name) do
    model_object = object.class.reflect_on_association(association).klass.new
    output = %Q[<div id="#{blueprint_name}" style="display:none" class="fields_blueprint">].html_safe
    output << fields_for(association, model_object, :child_index => "new_#{association}", &@fields[association])
    output.safe_concat('</div>')
    output
  end
  @template.link_to(*args, &block)
end

#link_to_remove(*args, &block) ⇒ Object

Adds a link to remove the associated record. The first argment is the name of the link.

f.link_to_remove("Remove Task")

You can pass HTML options in a hash at the end and a block for the content.

<%= f.link_to_remove(:class => "remove_task", :href => "#") do %>
  Remove Task
<% end %>

See the README for more details on where to call this method.



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# File 'lib/nested_form/builder_mixin.rb', line 46

def link_to_remove(*args, &block)
  options = args.extract_options!.symbolize_keys
  options[:class] = [options[:class], "remove_nested_fields"].compact.join(" ")
  args << (options.delete(:href) || "javascript:void(0)")
  args << options
  hidden_field(:_destroy) + @template.link_to(*args, &block)
end