test ecclesia autocomplete

booking.module

@@ -321,6 +321,14 @@ function booking_menu() {
     'type'                                => MENU_NORMAL_ITEM,
   );
   
+  //callback for autocomplete lookup of ecclesia name
+  $items['booking/ecclesia/autocomplete'] = array(
+    'title'                               => 'Autocomplete for ecclesia lookup on registration page',
+    'page callback'                       => '_booking_ecclesia_name_autocomplete',
+    'access arguments'                    => array('access booking form'),
+    'type'                                => MENU_CALLBACK
+  );
+
   $items['waitinglist'] = array(
     'title' => "Who's on the waiting list?",
     'page callback' => 'booking_waitinglist_page',

booking.regn_form.inc

@@ -63,6 +63,31 @@ function booking_register_page()
   return $return_array;
 }
 
+/**
+ * autocomplete helper to look up ecclesia names
+ * based on https://www.drupal.org/node/854216
+ * $string = string for search 
+ */
+function _booking_ecclesia_name_autocomplete($string) {
+  $matches = array();
+  $sanitised_string = preg_replace("/[^a-zA-Z0-9\s\.']/", '', $string);
+  $sanitised_string += "%";
+  watchdog('booking_debug', "<pre>Autocomplete checking for ecclesia matching:\n@info</pre>", array('@info' => print_r($sanitised_string, true)));
+
+	$query = db_select('booking_person', 'p')
+					->fields('p', array('booking_ecclesia'))
+	        ->condition('p.booking_ecclesia', $sanitised_string, 'LIKE');
+	$result = $query->execute();
+	
+	// save the query to matches
+	foreach ($result as $row) {
+		$matches[$row->booking_ecclesia] = $row->booking_ecclesia;
+	}
+	
+	// Return the result to the form in json
+	drupal_json_output($matches);
+}
+
 function booking_form($node, &$form_state, $inserting = FALSE)
 {
   global $event;
@@ -289,14 +314,26 @@ function booking_form($node, &$form_state, $inserting = FALSE)
       '#options' => _get_tshirt_options()
     );
   } //end enable tshirts check
-  
-  $form['your-details']['booking_ecclesia'] = array(
-    '#type' => 'textfield',
-    '#title' => t('Ecclesia'),
-    '#maxlength' => 100,
-    '#required' => FALSE,
-    '#default_value' => !empty($data->booking_ecclesia) ? $data->booking_ecclesia : ''
-  );
+
+  if ($inserting == FALSE) {
+		$form['your-details']['booking_ecclesia'] = array (
+			'#type' => 'textfield',
+			'#title' => t('Ecclesia'),
+			'#size' => 100,
+			'#autocomplete_path' => 'booking/ecclesia/autocomplete',
+			'#value' => !empty($data->booking_ecclesia) ? $data->booking_ecclesia : '',
+		);		    
+  }
+  else {
+    $form['your-details']['booking_ecclesia'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Ecclesia'),
+      '#maxlength' => 100,
+      '#required' => FALSE,
+      '#default_value' => !empty($data->booking_ecclesia) ? $data->booking_ecclesia : '',
+    );
+  }
+
   $form['your-details']['booking_baptised'] = array(
     '#type' => 'checkbox',
     '#title' => t('I am baptised'),