create a file in app/inputs/rich_text_area_input.rb:
class RichTextAreaInput < SimpleForm::Inputs::Base
def input_html_classes
super.push('trix-content')
end
def input(wrapper_options = nil)
merged_input_options = merge_wrapper_options(input_html_options, wrapper_options)
@builder.rich_text_area(attribute_name, merged_input_options)
end
end
in application.scss:
//simple_form input for rich_text_area hight
trix-editor.form-control {
height: auto;
}
Now in posts/_form.html.haml you can just do:
= f.input :description, as: :rich_text_area
Althrough hopefully at some point simple_form must add it to master
Source 1: https://github.com/heartcombo/simple_form/issues/1638
Source 2: https://github.com/heartcombo/simple_form/pull/1646