FirebaseFirestore.instance.collection('orders').doc().set({ "userId": FirebaseAuth.instance.currentUser.uid, "userName": FirebaseAuth.instance.currentUser.displayName, "orders": FieldValue.arrayUnion([[val.docs[0].data()['cart']]]), "price": cartController.totalCartPrice.value }); } else...
即使文档清晰显示且可访问也是如此EN当我直接从firestore中的一个集合中获取一个对象时，它工作得很好，...
就在 2022 年 3 月，我们的开发人员还在为 Firebase Extensions 等创新欢呼。遗憾的是，过去几个月的...
How to check the version of Ruby using the 'each' method. Checking if a Ruby array contains a specific element. Deleting a table in Rails. Changing the name of a column in Rails. Using the image tag in Rails. Reading a file in Ruby. Adding references in a Rails migration. Iterating ...
使用where和orderBy返回null的Firestore查询如果在添加orderBy指令时出现问题，很可能是因为此时Firestore需要...
<array> <string>UIInterfaceOrientationPortrait</string> <string>UIInterfaceOrientationLandscapeLeft</string> <string>UIInterfaceOrientationLandscapeRight</string> </array> <key>UISupportedInterfaceOrientations~ipad</key> <array> <string>UIInterfaceOrientationPortrait</string> <string>UIInterfaceOrientationPort...
^3.0.1 image_picker: ^0.6.5 equatable: ^1.1.1 cloud_firestore: ^0.13.5 dev_dependencies: flutter_test: sdk: flutter # For information on the generic Dart part of this file, see the # following page: https://dart.dev/tools/pub/pubspec # The following section is specific to Flutter. ...
我需要帮助进行从Dart-Flutter到FireBase的复合查询不要使用.toIso8601String()，Firestore提供了一个名为...
Flutter是google推出的，一个使用Dart语言开发的跨平台移动UI框架，通过自建绘制引擎，能高性能、高保真地...
Firebase和Flutter中表交集查询首先，这是您的问题的解决方案。您需要使用array-contains。示例：