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ActiveAdmin::FormBuilder.class_eval do
def has_many(association, options = {}, &block)
options = { :for => association }.merge(options)
options[:class] ||= ""
options[:class] << "inputs has_many_fields"
# Add Delete Links
form_block = proc do |has_many_form|
# @see https://github.com/justinfrench/formtastic/blob/2.2.1/lib/formtastic/helpers/inputs_helper.rb#L373
contents = if block.arity == 1 # for backwards compatibility with REE & Ruby 1.8.x
block.call(has_many_form)
else
index = parent_child_index(options[:parent]) if options[:parent]
block.call(has_many_form, index)
end
if has_many_form.object.new_record?
contents += template.content_tag(:li) do
template.link_to I18n.t('active_admin.has_many_delete'), "#", :onclick => "$(this).closest('.has_many_fields').remove(); return false;", :class => "button"
end
end
contents
end
content = with_new_form_buffer do
attributes = { :class => "has_many #{association}" }
unless options[:sortable].blank?
attributes[:class] << " sortable"
attributes['data-sortable'] = options[:sortable]
end
template.content_tag :div, attributes do
form_buffers.last << template.content_tag(:h3, object.class.reflect_on_association(association).klass.model_name.human(:count => 1.1))
inputs options, &form_block
js = js_for_has_many(association, form_block, template)
form_buffers.last << js.html_safe
end
end
form_buffers.last << content.html_safe
end
end