How Can I Select State According To Country In Cakephp Using Ajax?

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How Can I Select State According To Country In Cakephp Using Ajax?
I want to add state list according to the selected country. For e.g if india
is selected then india States appears in states drop down etc.
Its not working.when i am going to select state according to country.
please help me.below is my coding

in controller

PHP

App::uses('AppController', 'Controller');
class VenuesController extends AppController {
public $uses = array('State','Country','Venue','Facility','User','Image');
public $components = array('Custom');
##################add state##############################
   public function state()
    {
	if($this->RequestHandler->isAjax()) {
	$this->layout = 'ajax';
    $countryid=$this->request->data('country_id');
    $selectstate = $this->State->find('list', array('fields' => array('state_name'), 'conditions' => array('State.country_id' => $countryid)));
    $this->set('selectbox',$selectstate); 
	//pr($selectstate);
	}
    }
	}

in addvenue.ctp

XML

<script src="<?php echo HTTP_ROOT;?>js/jquery.min.1.8.3.js" type="text/javascript"></script>
<script type="text/javascript">

function showFields(id)
{
alert(id);
//alert("hello");
dataString="country_id="+id;
  $.ajax({
            url: "venues/state",
            type: "POST",
            data: dataString,
            //alert(data);
            success: function(data)
             {
              $('#state').html(data);
             },
        });
}
</script>

<section  class="content-header">
<h1> Add Venue </h1>
<ol class="breadcrumb">
  <li><a href="http://localhost/locatevenue/users"><i class="fa fa-dashboard"></i> Home</a></li>
  <li class="active">Add Venue</li>
</ol>
</ section>
<!-- Main content -->
<section  class="content">
  <div class="row">
    <!-- left column -->
    <?php echo $this->Session->flash('success_message') ?>
    <div class="col-md-61">
      <!-- general form elements -->
      <div class="box box-primary">
        <div class="box-header">
          <h3 class="box-title">Add Venue</h3>
        </div>
        <div style="width:49%; float:left;">
          <?php   echo $this->Form->create('Venue' ,array('id' =>'myform' ,'name' => 'myform','enctype'=>'multipart/form-data')); ?>
          <div class="box-body">
            <div class="form-group">
              <?php   echo $this->Form->input('country', array('onChange'=>'showFields(this.value)','class'=>'form-control','id' =>'country','type' => 'select','label'=>true,'label'=>'country:','options' => $country ,'empty' => 'Select A Country','required'=>'false'));  ?>
            </div>
            <div class="form-group">
              <?php
               echo $this->Form->input('state', array('class'=>'form-control','id' =>'state','type' => 'select','label'=>true,'label'=>'state:','options' => $state ,'empty' => 'Select A State','required'=>'false'));  ?>
            </div>
            <!--<div id="state"></div>-->
          </div>
        </div>
        <!-- /.box-body -->
      </div>
    </div>
  </div>
</section>

Posted 22-Jan-15 20:32pm

Sradhanjali Behera

Updated 27-Jan-15 19:14pm

v5

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2 solutions

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Sradhanjali Behera · Accepted Answer · 2015-01-28T18:31:00

In country use onchange function

PHP

echo $this->Form->input('country', array('onChange'=>'showFields(this.value)','class'=>'form-control','id' =>'country','type' => 'select','label'=>true,'label'=>'country:','options' => $country ,'empty' => 'Select A Country','required'=>'false'));

then call to the function showFields
script src="jquery.min.1.8.3.js"
<type="text/javascript"></script>
type="text/javascript"></script>

JavaScript

 function showFields(id) 
{ 
  var strURL = '<?php echo HTTP_ROOT; ??>';
   var image = "<?php echo HTTP_ROOT . 'img/ajax-loader-small.gif'; ??>" 
        $('#loader').html("<img src=""+image+"" />");
  $.post(strURL+"venues/ajaxstate",{"country":id},function(data){  
            if(data) { 
			$('#result').html(data); 
			$("#loader").hide(); 
            }
			else
			{
                alert("Error...");	
            }
        });
}

make a page ajaxstate.ctp .placed it in view of that controller

PHP

if($selectbox)
 {
 echo $this->Form->input('Venue.state', array('class'=>'form-control','id' =>'state','type' => 'select','label'=>true,'label'=>'state:','options' => $selectbox ,'empty' => 'Select A State','required'=>'false'));
 }

in controller

PHP

App::uses('AppController', 'Controller');
class VenuesController extends AppController {
public $uses = array('State','Country','Venue','Facility','User','Image');
  public $components = array('RequestHandler', 'Custom');
 
   public function ajaxstate()
    {
	if($this->RequestHandler->isAjax()) {
	$this->layout = 'ajax';
     $countryid=$this->request->data('country');
    $selectstate = $this->State->find('list', array('fields' => array('state_name'), 'conditions' => array('State.country_id' => $countryid)));
    $this->set('selectbox',$selectstate); 
      
	}
    }

in ctp file in place of state

HTML

<div class="form-group">
            <div class="loader" id="loader"></div>
              <div id="result">
                 
              </div>
            </div>

Belal Haque Khan · Accepted Answer · 2015-03-20T22:38:00

Solution 2

Fetch from database php ajax jquery
You can create a mysql database of all the contries and then can use the above tutorial for fetching data in dropdowns.

Posted 20-Mar-15 22:38pm

Belal Haque Khan

Updated 20-Mar-15 22:39pm

v2