Module | ActionController::Macros::AutoComplete::ClassMethods |
In: |
vendor/rails/actionpack/lib/action_controller/macros/auto_complete.rb
|
DEPRECATION WARNING: This method will become a separate plugin when Rails 2.0 ships.
Example:
# Controller class BlogController < ApplicationController auto_complete_for :post, :title end # View <%= text_field_with_auto_complete :post, title %>
By default, auto_complete_for limits the results to 10 entries, and sorts by the given field.
auto_complete_for takes a third parameter, an options hash to the find method used to search for the records:
auto_complete_for :post, :title, :limit => 15, :order => 'created_at DESC'
For help on defining text input fields with autocompletion, see ActionView::Helpers::JavaScriptHelper.
For more examples, see script.aculo.us:
# File vendor/rails/actionpack/lib/action_controller/macros/auto_complete.rb, line 38 38: def auto_complete_for(object, method, options = {}) 39: define_method("auto_complete_for_#{object}_#{method}") do 40: find_options = { 41: :conditions => [ "LOWER(#{method}) LIKE ?", '%' + params[object][method].downcase + '%' ], 42: :order => "#{method} ASC", 43: :limit => 10 }.merge!(options) 44: 45: @items = object.to_s.camelize.constantize.find(:all, find_options) 46: 47: render :inline => "<%= auto_complete_result @items, '#{method}' %>" 48: end 49: end