Is it possible to create rules denied if a price is already registered in the database? I tried to validate using exist data but firebase blocks all of them when there is one data
database.ref('data/penawaran/enter-name').push({
name: 'Udin',
price:'300000',
member_id:9,
product_id:8,
created_at: '2020-10-13 23:00:00'
}, function(error) {
if (error) {
alert('error');
} else {
}
});
^^^ i want get failed cause price 300000 already exist in database
database.ref('data/penawaran/enter-name').push({
name: 'Udin',
price:'900000',
member_id:9,
product_id:8,
created_at: '2020-10-13 23:00:00'
}, function(error) {
if (error) {
alert('error');
} else {
}
});
i want get success cause price 900000 not exist in database
