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Contents
module Formtastic
module Inputs
# Outputs a label and a text field, along with a datalist tag
# datalist tag provides a list of options which drives a simple autocomplete
# on the text field. This is a HTML5 feature, more info can be found at
# {https://developer.mozilla.org/en/docs/Web/HTML/Element/datalist <datalist> at MDN}
# This input accepts a :collection option which takes data in all the usual formats accepted by
# {http://apidock.com/rails/ActionView/Helpers/FormOptionsHelper/options_for_select options_for_select}
#
# @example Input is used as follows
# f.input :fav_book, :as => :datalist, :collection => Book.pluck(:name)
#
class DatalistInput
include Base
include Base::Stringish
include Base::Collections
def to_html
@name = input_html_options[:id].gsub(/_id$/, "")
input_wrapping do
label_html <<
builder.text_field(method, input_html_options) << # standard input
data_list_html # append new datalist element
end
end
def input_html_options
super.merge(:list => html_id_of_datalist)
end
def html_id_of_datalist
"#{@name}_datalist"
end
def data_list_html
html = builder.template.options_for_select(collection)
builder.template.content_tag(:datalist,html, { :id => html_id_of_datalist }, false)
end
end
end
end
Version data entries
13 entries across 13 versions & 3 rubygems