preDelete

The preDelete hook is executed before a row is deleted. It allows developers to prevent deletion based on custom logic.

Parameters

Parameter	Type	Description
table	reference	Table instance and state.
app	reference	Context object app.
rowId	object	The primary key of the row to be deleted.

Structure parameter table

table: {
	instance: *ref_to_table_api,
	state: *ref_to_table_store,
	requery: *ref_to_requery_table_function,
}

The requery function supports two optional parameters:

requery(recalculateRowCount, enableLoadingFeedback)

• recalculateRowCount: When true, forces a row count recalculation. (default: false)
• enableLoadingFeedback: When false, disables the spinner and progress bar. (default: true)

Return Value

Return false to cancel the deletion, or true to proceed with the deletion.

✨ Example of a preDelete Hook

This example prevents deleting rows with an id greater than 40000.

((table, app) => {

	if (rowId?.id > 40000) {

    	wpda.alert("ERROR", "Delete not allowed!")		// Use built-in alert
        wpda.snackbar("Delete not allowed!", "error")   // Use built-in snackbar
      
        return false

    }

})