The table column which should be taken for the ids (see first parameter).
This' type can again only be 'string' (remember why?).
//-->
- <table-id-column name="" type="string" value="id" />
+ <table-id-column name="" type="string" value="booking_id" />
<!--
The table column which should be taken for user ids
This' type can again only be 'string' (remember why?).