Validate username exists on keypress

core/um-actions-ajax.php

@@ -1,24 +1,24 @@
 <?php
-	
+
 	/***
 	***	@fallback for ajax urls
 	***/
 	add_action('wp_head','ultimatemember_ajax_urls');
 	add_action('admin_head','ultimatemember_ajax_urls');
 	function ultimatemember_ajax_urls() { ?>
-		
+
 		<script type="text/javascript">
-		
+
 		var ultimatemember_image_upload_url = '<?php echo um_url . 'core/lib/upload/um-image-upload.php'; ?>';
 		var ultimatemember_file_upload_url = '<?php echo um_url . 'core/lib/upload/um-file-upload.php'; ?>';
 		var ultimatemember_ajax_url = '<?php echo admin_url('admin-ajax.php'); ?>';
-		
+
 		</script>
-		
+
 	<?php
 
 	}
-	
+
 	/***
 	***	@remove any file silently
 	***/
@@ -29,7 +29,7 @@
 		extract($_REQUEST);
 		$ultimatemember->files->delete_file( $src );
 	}
-	
+
 	/***
 	***	@remove profile photo silently
 	***/
@@ -38,13 +38,13 @@
 	function ultimatemember_delete_profile_photo(){
 		global $ultimatemember;
 		extract($_REQUEST);
-		
+
 		if ( !um_current_user_can('edit', $user_id ) ) die( __('You can not edit this user') );
 
 		$ultimatemember->files->delete_core_user_photo( $user_id, 'profile_photo' );
 
 	}
-	
+
 	/***
 	***	@remove cover photo silently
 	***/
@@ -53,13 +53,13 @@
 	function ultimatemember_delete_cover_photo(){
 		global $ultimatemember;
 		extract($_REQUEST);
-		
+
 		if ( !um_current_user_can('edit', $user_id ) ) die( __('You can not edit this user') );
 
 		$ultimatemember->files->delete_core_user_photo( $user_id, 'cover_photo' );
 
 	}
-		
+
 	/***
 	***	@resampling/crop images
 	***/
@@ -68,35 +68,35 @@
 	function ultimatemember_resize_image(){
 		global $ultimatemember;
 		$output = 0;
-		
+
 		extract($_REQUEST);
-		
+
 		if ( !isset($src) || !isset($coord) ) die( __('Invalid parameters') );
-		
+
 		$coord_n = substr_count($coord, ",");
 		if ( $coord_n != 3 ) die( __('Invalid coordinates') );
-		
+
 		$um_is_temp_image = um_is_temp_image( $src );
 		if ( !$um_is_temp_image ) die( __('Invalid Image file') );
-		
+
 		$crop = explode(',', $coord );
 		$crop = array_map('intval', $crop);
-		
+
 		$uri = $ultimatemember->files->resize_image( $um_is_temp_image, $crop );
 
 		// If you're updating a user
 		if ( isset( $user_id ) && $user_id > 0 ) {
 			$uri = $ultimatemember->files->new_user_upload( $user_id, $um_is_temp_image, $key );
 		}
-		
+
 		$output = $uri;
-		
+
 		delete_option( "um_cache_userdata_{$user_id}" );
-		
+
 		if(is_array($output)){ print_r($output); }else{ echo $output; } die;
 
 	}
-	
+
 	/***
 	***	@run an ajax action on the fly
 	***/
@@ -105,9 +105,9 @@
 	function ultimatemember_muted_action(){
 		global $ultimatemember;
 		extract($_REQUEST);
-		
+
 		if ( !um_current_user_can('edit', $user_id ) ) die( __('You can not edit this user') );
-		
+
 		switch( $hook ) {
 			default:
 				do_action("um_run_ajax_function__{$hook}", $_REQUEST);
@@ -115,7 +115,7 @@
 		}
 
 	}
-	
+
 	/***
 	***	@run an ajax pagination on the fly
 	***/
@@ -124,14 +124,33 @@
 	function ultimatemember_ajax_paginate(){
 		global $ultimatemember;
 		extract($_REQUEST);
-		
+
 		ob_start();
-		
+
 		do_action("um_ajax_load_posts__{$hook}", $args);
-		
+
 		$output = ob_get_contents();
 		ob_end_clean();
-		
+
 		die($output);
 
-	}
+	}
+
+	/***
+	***	@run check if username exists
+	***/
+	add_action('wp_ajax_nopriv_ultimatemember_check_username_exists', 'ultimatemember_check_username_exists');
+	add_action('wp_ajax_ultimatemember_check_username_exists', 'ultimatemember_check_username_exists');
+	function ultimatemember_check_username_exists() {
+		$username = isset($_REQUEST['username']) ? $_REQUEST['username'] : '';
+		$exists   = username_exists( $username );
+		$exists   = apply_filters( 'um_validate_username_exists', $exists, $username );
+
+		if( $exists ) {
+			echo 1;
+		} else {
+			echo 0;
+		}
+
+		die();
+	}

core/um-fields.php

@@ -934,7 +934,7 @@ class UM_Fields {
 		}
 
 		$type = apply_filters("um_hook_for_field_{$type}", $type );
-		
+
 		/* Begin by field type */
 		switch( $type ) {
 
@@ -2109,7 +2109,7 @@ class UM_Fields {
 						}
 
 						$res = stripslashes( $this->field_value( $key, $default, $data ) );
-						
+
 						$res = apply_filters("um_view_field_value_{$type}", $res, $data );
 
 						$output .= '<div class="um-field-area">';
@@ -2275,7 +2275,7 @@ class UM_Fields {
 
 									$output .= $this->view_field( $key, $data );
 
-									
+
 								}
 							}
 							$output .= '</div>';