Adds new select/multi-select options to retrieve options from a callback

admin/assets/js/um-admin-modal.js

@@ -328,4 +328,37 @@ jQuery(document).ready(function() {
 		um_admin_modal_responsive();
 	});
 
-});
+	
+	/**
+	 * Retrieve options from a callback function
+	 */
+	jQuery(document).on('blur',"#_custom_dropdown_options_source", function(){
+        var me = jQuery(this);
+        var _options = jQuery('textarea[id=_options]');
+        
+        if( me.val() != '' ){
+        	var um_option_callback = me.val();
+          	jQuery.ajax({
+				url: ultimatemember_ajax_url,
+				type: 'POST',
+				data: {action: 'ultimatemember_populate_dropdown_options', um_option_callback: um_option_callback },
+				complete: function(){
+					
+				},
+				success: function( response ){
+					var arr_opts = [];
+					
+					for (var key in response.data ){
+                         arr_opts.push( response.data[ key ] );
+					}
+
+					_options.val( arr_opts.join('\n') );
+					
+		        }
+			});
+		}
+
+	});
+
+}); // end jQuery(document).ready
+

admin/core/um-admin-actions-ajax.php

@@ -48,4 +48,31 @@
 		
 		if(is_array($output)){ print_r($output); }else{ echo $output; } die;
 		
-	}
+	}
+
+	/**
+	 *  Retrieves dropdown/multi-select options from a callback function
+     */
+	add_action('wp_ajax_nopriv_ultimatemember_populate_dropdown_options', 'ultimatemember_populate_dropdown_options');
+	add_action('wp_ajax_ultimatemember_populate_dropdown_options', 'ultimatemember_populate_dropdown_options');
+	function ultimatemember_populate_dropdown_options(){
+
+		$arr_options = array();
+
+        $um_callback_func = $_POST['um_option_callback'];
+        if( empty( $um_callback_func ) ){
+        	$arr_options['status'] = 'empty';
+        	$arr_options['function_name'] = $um_callback_func;
+        	$arr_options['function_exists'] = function_exists( $um_callback_func );
+        }
+        
+        $arr_options['data'] = array();
+
+		if( function_exists( $um_callback_func ) ){
+			$arr_options['data'] = call_user_func( $um_callback_func );
+		}
+
+		wp_send_json( $arr_options );
+	}
+
+	

admin/core/um-admin-metabox.php

@@ -1505,6 +1505,17 @@ class UM_Admin_Metabox {
 					
 				<?php
 				break;
+
+			case '_custom_dropdown_options_source':
+				?>
+					
+					<p><label for="_placeholder">Options Callback<?php $this->tooltip('Add a callback source to retrieve options.'); ?></label>
+						<input type="text" name="_custom_dropdown_options_source" id="_custom_dropdown_options_source" value="<?php echo htmlspecialchars($this->edit_mode_value, ENT_QUOTES); ?>" />
+					</p>
+		
+				<?php
+				break;
+
 				
 		}