Class: Wallaby::FormBuilder

Inherits:
ActionView::Helpers::FormBuilder
  • Object
show all
Defined in:
lib/forms/wallaby/form_builder.rb

Overview

Custom form builder to add more helper functions

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object (protected)

Try to delegate method to ‘@template`



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# File 'lib/forms/wallaby/form_builder.rb', line 40

def method_missing(method, *args, &block)
  return super unless @template.respond_to? method
  # Delegate the method so that we don't come in here the next time
  # same method is called
  self.class.delegate method, to: :@template
  @template.public_send method, *args, &block
end

Instance Method Details

#error_class(field_name) ⇒ String

Return error class if there is error

Parameters:

  • field_name (String/Symbol)

Returns:

  • (String) 


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# File 'lib/forms/wallaby/form_builder.rb', line 7

def error_class(field_name)
  'has-error' if object.errors[field_name].present?
end

#error_messages(field_name) ⇒ String

Build up the HTML for displaying error messages

Parameters:

  • field_name (String/Symbol)

Returns:

  • (String) —

    HTML



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# File 'lib/forms/wallaby/form_builder.rb', line 14

def error_messages(field_name)
  errors = Array object.errors[field_name]
  return if errors.blank?

  content_tag :ul, class: 'errors' do
    errors.each do |message|
      concat content_tag :li, content_tag(:small, raw(message))
    end
  end
end

#label(method, text = nil, options = {}, &block) ⇒ Object

Extend label to accept proc type ‘text` argument



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# File 'lib/forms/wallaby/form_builder.rb', line 26

def label(method, text = nil, options = {}, &block)
  text = instance_exec(&text) if text.respond_to? :call
  super
end

#select(method, choices = nil, options = {}, html_options = {}, &block) ⇒ Object

Extend select to accept proc type ‘choices` argument



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# File 'lib/forms/wallaby/form_builder.rb', line 32

def select(method, choices = nil, options = {}, html_options = {}, &block)
  choices = instance_exec(&choices) if choices.respond_to? :call
  super
end