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hi,dear all, could you please help me..(sorry for my poor english , i am a chinese people.)

the problem is :

I rewrite a favorite funcion: if I favorite an activity, then send a new activity that the item_id is the original activity’s ID.
for example?an activity id is 1?then I favorite it?then send a new activity that the ID maybe is 2?item_id still is 1.

I have made it work correctly.

but if I delete the activity that ID is 2?I want to use the function “bp_activity_remove_user_favorite()” to remove the activity id of 1 from “bp_favorite_activities” in wp_usermeta table?

So I write a function:

function my_function() {
global $bp, $activities_template;
$item_id = bp_get_activity_item_id();
bp_activity_remove_user_favorite($item_id);
}
add_action( ‘bp_activity_deleted_activities’, ‘my_function’ );

but it doesn’t work. if i make $item_id = ‘1’;,the it works.
so, i’m afraid that “$item_id = bp_get_activity_item_id()” has something wrong.

Would you please help me about this? Thank you so much!