Module: RailsStuff::Helpers::ResourceForm

Defined in:
lib/rails_stuff/helpers/resource_form.rb

Overview

Provides helper for SimpleForm.

Instance Method Summary collapse

Instance Method Details

#resource_form_for(namespace = nil, **options) ⇒ Object

Generates ‘resource_form` helper to display form with basic arguments, elements, errors and options. Generated method can work without arguments in most of cases: it takes object from `resource` method.

Use ‘namespace` to add additional path parts to form action:

# this one will use [:site, resource]
resource_form_for :site

#### Options

  • ‘back_url` - default back url. Can be string with code, or hash for `url_for`.

  • ‘resource_method` - method to take resource from.

  • ‘method` - name of generated method.



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# File 'lib/rails_stuff/helpers/resource_form.rb', line 21

def resource_form_for(namespace = nil, **options)
  default_back_url =
    case options[:back_url]
    when Hash then "url_for(#{options[:back_url]})"
    when String then options[:back_url]
    else 'url_for(object)'
    end
  resource_method = options.fetch(:resource_method, :resource)
  method_name = options.fetch(:method, :resource_form)
  object_arg = (Array.wrap(namespace).map(&:inspect) + [resource_method]).join(', ')

  class_eval <<-RUBY, __FILE__, __LINE__ + 1
    def #{method_name}(object = [#{object_arg}], **options)
      back_url = options.delete(:back_url) || #{default_back_url}
      simple_form_for object, options do |f|
        html = ActiveSupport::SafeBuffer.new
        msg = f.object.errors[:base].first
        html << content_tag(:div, msg, class: 'alert alert-danger') if msg
        html << capture { yield(f) }
        html << content_tag(:div, class: 'form-group') do
          inputs = f.button(:submit, class: 'btn-primary')
          inputs << ' '
          inputs << link_to(translate_action(:cancel), back_url, class: :btn)
        end
      end
    end
  RUBY
end