我正在尝试创建一个可以识别谁删除的功能,问题是我没有从Firebase服务器得到任何答案,有人可以帮助我吗?谢谢
exports.deleteFunction = functions.database.ref('/clientes')
.onDelete((context) => {
// Grab the current value of what was written to the Realtime Database.
console.log("delete");
console.log(context);
});
这是要删除的功能
confirm = (e) => {
if (id_deleta) {
firebaseDatabase.ref('/clientes/categorias/').child(id_deleta)
.remove();
notification('success', 'Excluido com sucesso');
this.callCategoria();
} else {
notification('error', 'Ocorreu um erro, tente mais tarde');
}
}
答案 0 :(得分:1)
onDelete
事件处理程序的名称为defined,
function(non-null functions.database.DataSnapshot, optional non-null functions.EventContext)
因此,在上面的代码中,.onDelete((context) => {
应该为.onDelete((snapshot, context) => {
。
接下来,如果您试图从id_deleta
事件中获取onDelete
的值,则可以使用var id_deleta = snapshot.key
。
exports.deleteFunction = functions.database.ref('/clientes')
.onDelete((snapshot, context) => {
var id_deleta = snapshot.key;
console.log("deleted ID %s", id_deleta); // logs "deleted ID 1234", etc.
console.log(snapshot.val()); // logs the deleted data, no need for this
console.log(context); // logs the event context
});