Module: AutoCompleteJquery::ClassMethods

Defined in:
lib/auto_complete_jquery.rb

Overview

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 on jQuery auto-complete, see the docs for the jQuery autocomplete plugin used in conjunction with this plugin:

Instance Method Summary collapse

Instance Method Details

#auto_complete_for(object, method, options = {}) ⇒ Object 



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# File 'lib/auto_complete_jquery.rb', line 33

def auto_complete_for(object, method, options = {})
  define_method("auto_complete_for_#{object}_#{method}") do
    object_constant = object.to_s.camelize.constantize
    
    find_options = { 
      :conditions => [ "LOWER(#{method}) LIKE ?", '%' + params[:q].downcase + '%' ], 
      :order => "#{method} ASC",
      :select => "#{object_constant.table_name}.#{method}",
      :limit => 10 }.merge!(options)
    
    @items = object_constant.find(:all, find_options).collect(&method)

    render :text => @items.join("\n")
  end
end