SimpleForm default input class

ruby-on-rails-3, simple-form

Solution

You can simply override the simple_form default for string input by adding a string_input.rb class file to your rails load path (i.e. app/inputs/string_input.rb) and include as follow:

class StringInput < SimpleForm::Inputs::StringInput
  def input_html_classes
    super.push('span12')
  end
end

If you need to add more default classes to other types of input, you can check out the various input types provided:

https://github.com/plataformatec/simple_form/tree/master/lib/simple_form/inputs

Problem

I'm using SimpleForm + Bootstrap. How can I add an attribute to all `type="text"` inputs with class = `span12`? Something that outputs something like this: ``` <div class="controls"><input autofocus="autofocus" class="string required span12" id="user_first_name" name="user[first_name]" required="required" size="50" type="text" value=""></div> ``` I tried playing with `config.wrappers` but this ``` ba.use :input, :wrap_with => { :class => 'span12' } ``` doesn't work. It adds to wrapper instead of modifying the input tag. Any thoughts? ``` SimpleForm.setup do |config| config.wrappers :bootstrap, :tag => 'div', :class => 'control-group', :error_class => 'error' do |b| b.use :html5 b.use :placeholder b.use :label b.wrapper :tag => 'div', :class => 'controls' do |ba| ba.use :input ba.use :error, :wrap_with => { :tag => 'span', :class => 'help-inline' } ba.use :hint, :wrap_with => { :tag => 'p', :class => 'help-block' } end end config.default_wrapper = :bootstrap end ```

Original source