email availability using ajax in registration form

application/config/config.php

@@ -23,8 +23,8 @@ defined('BASEPATH') OR exit('No direct script access allowed');
 | a PHP script and you can easily do that on your own.
 |
 */
-$config['base_url'] = 'https://wbt-2-ty-272811.appspot.com/';
-//$config['base_url'] = 'http://localhost/webapp/ci/';
+//$config['base_url'] = 'https://wbt-2-ty-272811.appspot.com/';
+$config['base_url'] = 'http://localhost/webapp/ci/';
 
 /*
 |--------------------------------------------------------------------------
@@ -379,22 +379,22 @@ $config['encryption_key'] = 'femEDWTX$AQ@6HggkKn8RWGf!*ufK?KC';
 | except for 'cookie_prefix' and 'cookie_httponly', which are ignored here.
 |
 */
-$config['sess_driver'] = 'memcached';
-$config['sess_cookie_name'] = 'ci_session';
-$config['sess_expiration'] = 7200;
-$config['sess_save_path'] = 'localhost:11211';
-$config['sess_match_ip'] = FALSE;
-$config['sess_time_to_update'] = 7200;
-$config['sess_regenerate_destroy'] = FALSE;
-
-//$config['sess_driver'] = 'database';
+//$config['sess_driver'] = 'memcached';
 //$config['sess_cookie_name'] = 'ci_session';
 //$config['sess_expiration'] = 7200;
-//$config['sess_save_path'] = 'ci_sessions';
+//$config['sess_save_path'] = 'localhost:11211';
 //$config['sess_match_ip'] = FALSE;
 //$config['sess_time_to_update'] = 7200;
 //$config['sess_regenerate_destroy'] = FALSE;
 
+$config['sess_driver'] = 'database';
+$config['sess_cookie_name'] = 'ci_session';
+$config['sess_expiration'] = 7200;
+$config['sess_save_path'] = 'ci_sessions';
+$config['sess_match_ip'] = FALSE;
+$config['sess_time_to_update'] = 7200;
+$config['sess_regenerate_destroy'] = FALSE;
+
 /*
 |--------------------------------------------------------------------------
 | Cookie Related Variables
@@ -466,7 +466,7 @@ $config['csrf_regenerate'] = false;
 $config['csrf_exclude_uris'] = array(
 	'cart/add_to_cart', 'cart/load_cart',
 	'home/products', 'cart/delete_product_from_cart', 'cart/increase_qty', 'cart/decrease_qty',
-	'auth/resetpassword'
+	'auth/resetpassword','auth/email_availability'
 
 );
 

application/config/database.php

@@ -75,12 +75,12 @@ $query_builder = TRUE;
 
 $db['default'] = array(
 	'dsn'	=> '',
-	'hostname' => '104.199.82.156',
-	'username' => 'tetiana',
-	'password' => 'yaremko_tetiana',
-//	'hostname' => 'localhost',
-//	'username' => 'root',
-//	'password' => '',
+//	'hostname' => '104.199.82.156',
+//	'username' => 'tetiana',
+//	'password' => 'yaremko_tetiana',
+	'hostname' => 'localhost',
+	'username' => 'root',
+	'password' => '',
 	'database' => 'mydb',
 	'dbdriver' => 'mysqli',
 	'dbprefix' => '',

application/controllers/Auth.php

@@ -262,6 +262,16 @@ class Auth extends CI_Controller
 	}
 
 
+	public function email_availability() {
+		$this->load->model('Register_model', 'auth');
+		if($this->auth->is_email_available($_POST["email"])) {
+			echo '<label class="text-danger"><span class="glyphicon glyphicon-remove"></span> Email is already registered</label>';
+		} else {
+			echo '<label class="text-success"><span class="glyphicon glyphicon-add"></span> Email is available</label>';
+		}
+	}
+
+
 
 
 

application/hooks/acl.php

@@ -12,6 +12,7 @@
 	$allowAll['auth']['resetpassword']=true;
 	$allowAll['auth']['changepassword']=true;
 	$allowAll['auth']['verify'] =true;
+	$allowAll['auth']['email_availability'] =true;
 
 	$allowAll['home']['products']=true;
 	$allowAll['cart']['add_to_cart']=true;

application/models/Register_model.php

@@ -71,6 +71,15 @@ class Register_model extends CI_Model {
 
 	}
 
+	function is_email_available($email) {
+		$this->db->where('email', $email);
+		$query=$this->db->get('users');
+		if($query->num_rows()>0) {
+			return true;
+		}
+		return false;
+	}
+
 
 
 

application/views/register.php

@@ -44,6 +44,7 @@
 						<td>
 							<input  name="email" id="email" type="text" value="<?php echo set_value("email") ?>">
 							<?php echo $error; ?>
+							<span id="email_result"></span>
 						</td>
 					</tr>
 					<tr>
@@ -54,6 +55,7 @@
 						<td>
 							<input  name="password" id="password" type="password">
 							<?php echo $error; ?>
+
 						</td>
 					</tr>
 					<tr>
@@ -217,12 +219,40 @@
   </div>
 
 
+
     <!-- Optional JavaScript -->
     <!-- jQuery first, then Popper.js, then Bootstrap JS -->
     <script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
     <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
     <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
     <script src="<?php echo base_url();?>assets/js/bootstrap.min.js"></script>
+  <script src="<?php echo base_url(); ?>asset/js/jquery-3.3.1.min.js"></script>
+
+  <script>
+	  base_url = '<?php echo base_url(); ?>';
+	  $(document).ready(function() {
+
+	  	$('#email').change(function() {
+
+	  		var email=$('#email').val();
+
+	  		if(email!='')
+			{
+
+				$.ajax({
+					url: base_url+'index.php/auth/email_availability',
+					method: "POST",
+					data: {email:email},
+					success:function(data) {
+
+						$('#email_result').html(data);
+					}
+
+				})
+			}
+		  })
+	  })
+  </script>
   </body>
 
 </html>