Is there a way to sort my query by the 'order_date' value and have it display in chronological order (latest orders first)? I'm also working on implementing pagination. Here is the code snippet for my current query.
var orders = fbdatabase.ref('orders').orderByChild('order_date');
orders.on('value', function(snapshot) {
console.log(snapshot.val())
});
If you find yourself needing to query in reverse order on Firebase, there is a workaround using the limitToLast method:
var orders = fbdatabase.ref('orders')
.orderByChild('order_date')
.limitToLast(20);
orders.on('value', function(snapshot) {
console.log(snapshot.val().reverse());
});
Another approach would be to store an additional field like order_date_desc, which uses negative values (assuming timestamps).
Aside from Michael's response, it is also crucial to note that the order in your callback function is not being retained. Make sure to iterate through the snapshot using snapshot.forEach() before accessing .val():
var orders = fbdatabase.ref('orders').orderByChild('reversed_order_date');
orders.on('value', function(snapshot) {
snapshot.forEach(function(order) {
console.log(order.val())
});
});
For further reference, you may check out:
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