Class: Formtastic::Inputs::DatalistInput

Inherits:
Object
  • Object
show all
Includes:
Base, Base::Collections, Base::Stringish
Defined in:
lib/formtastic/inputs/datalist_input.rb

Overview

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 at MDN This input accepts a :collection option which takes data in all the usual formats accepted by options_for_select

Examples:

Input is used as follows

f.input :fav_book, :as => :datalist, :collection => Book.pluck(:name)

Instance Attribute Summary

Attributes included from Base

#builder, #method, #object, #object_name, #options, #template

Instance Method Summary collapse

Methods included from Base::Collections

#collection, #collection_for_boolean, #collection_from_association, #collection_from_enum, #collection_from_enum?, #collection_from_options, #label_and_value_method, #label_and_value_method_from_collection, #label_method, #label_method_from_options, #raw_collection, #send_or_call, #send_or_call_or_object, #value_method, #value_method_from_options

Methods included from Base::Stringish

#maxlength, #size, #wrapper_html_options

Methods included from Base

#initialize, #removed_option!, #warn_and_correct_option!, #warn_deprecated_option!

Methods included from Base::Wrapping

#input_wrapping, #wrapper_classes, #wrapper_classes_raw, #wrapper_dom_id, #wrapper_html_options, #wrapper_html_options_raw

Methods included from Base::Labelling

#label_from_options, #label_html, #label_html_options, #label_text, #localized_label, #render_label?, #requirement_text, #requirement_text_or_proc

Methods included from LocalizedString

#model_name

Methods included from Base::Associations

#association, #association_primary_key, #belongs_to?, #has_many?, #reflection

Methods included from Base::Fileish

#file?

Methods included from Base::Validations

#autofocus?, #column_limit, #limit, #not_required_through_negated_validation!, #not_required_through_negated_validation?, #optional?, #readonly?, #readonly_attribute?, #readonly_from_options?, #required?, #required_attribute?, #responds_to_global_required?, #validation_integer_only?, #validation_limit, #validation_max, #validation_min, #validation_step, #validations, #validations?, #validator_relevant?

Methods included from Base::Naming

#as, #attributized_method_name, #humanized_method_name, #input_name, #sanitized_method_name, #sanitized_object_name

Methods included from Base::Hints

#hint?, #hint_html, #hint_text, #hint_text_from_options

Methods included from Base::Errors

#error_first_html, #error_html, #error_keys, #error_list_html, #error_none_html, #error_sentence_html, #errors, #errors?

Methods included from Base::Database

#column, #column?

Methods included from Base::Options

#formtastic_options, #input_options

Methods included from Base::Html

#dom_id, #dom_index

Instance Method Details

#data_list_html ⇒ Object 



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# File 'lib/formtastic/inputs/datalist_input.rb', line 36

def data_list_html
  html = builder.template.options_for_select(collection)
  builder.template.content_tag(:datalist,html, { :id => html_id_of_datalist }, false)
end

#html_id_of_datalist ⇒ Object 



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# File 'lib/formtastic/inputs/datalist_input.rb', line 32

def html_id_of_datalist
  "#{@name}_datalist"
end

#input_html_options ⇒ Object 



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# File 'lib/formtastic/inputs/datalist_input.rb', line 28

def input_html_options
  super.merge(:list => html_id_of_datalist)
end

#to_html ⇒ Object 



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# File 'lib/formtastic/inputs/datalist_input.rb', line 19

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