OnBeforeBlogUpdate

bool
Handler function(
 int   ID,
 array &arParams 
);

This event is called in the CBlog::Update method before modifying a blog and can be used to cancel the modification or to redefine certain fields.

Function parameters

Parameter	Description
ID	Modified blog ID.
arParams	Array of fields of blog.

All parameters of this handler are links to initial variables. That's why, if you modify parameter value inside the handler, it will lead to modified initial variable, received by handler function.

Returned value

To cancel the adding process and to terminate execution of the CBlog::Update method, you must create an exception in the handler function by the $APPLICATION->ThrowException() method and to return false.

See Also

• "OnBlogUpdate" event
• CBlog::Update

Example

<?
// file /bitrix/php_interface/init.php
// register the handler
AddEventHandler("blog", 
                "OnBeforeBlogUpdate", 
                Array("MyClass", "OnBeforeBlogUpdateHandler"));


class MyClass
{
    // create the event handler "OnBeforeBlogUpdate"
    public static function OnBeforeBlogUpdateHandler($ID, &$arFields)
    {
        if(strlen($arFields["DESCRIPTION"])<=0)
        {
            global $APPLICATION;
            $APPLICATION->throwException("Enter blog description");
            return false;
        }
    }
}
?>