firebase connection

[johnkassi]

Hi, for the "model we store in the Firebase" I need to put it in the SportBooking.dart , right?

[radikris]

Yes, so you have a schema in your Firebase, how your data looks like. This need to be the same (just in Dart) for your model, which in the example, it's the SportBooking.dart

[johnkassi]

Yes, so you have a schema in your Firebase, how your data looks like. This need to be the same (just in Dart) for your model, which in the example, it's the SportBooking.dart

I see.

Next question: What package is this? How to add this package?

[helloooo]

Yes, so you have a schema in your Firebase, how your data looks like. This need to be the same (just in Dart) for your model, which in the example, it's the SportBooking.dart

I see.

Next question: What package is this? How to add this package?

that is not package run this line it will generate g.dart file flutter pub run build_runner build --delete-conflicting-outputs

[johnkassi]

Yes, so you have a schema in your Firebase, how your data looks like. This need to be the same (just in Dart) for your model, which in the example, it's the SportBooking.dart

I see. Next question: What package is this? How to add this package?

that is not package run this line it will generate g.dart file flutter pub run build_runner build --delete-conflicting-outputs

No longer error on g.dart because it got generated. But the import package still on error, how to fix?

[helloooo]

Yes, so you have a schema in your Firebase, how your data looks like. This need to be the same (just in Dart) for your model, which in the example, it's the SportBooking.dart

I see. Next question: What package is this? How to add this package?

that is not package run this line it will generate g.dart file flutter pub run build_runner build --delete-conflicting-outputs

No longer error on g.dart because it got generated. But the import package still on error, how to fix?

i think that is your case booking_util.dart import 'package:intl/intl.dart';

class BookingUtil { BookingUtil._();

static bool isOverLapping(DateTime firstStart, DateTime firstEnd, DateTime secondStart, DateTime secondEnd) { return getLatestDateTime(firstStart, secondStart) .isBefore(getEarliestDateTime(firstEnd, secondEnd)); }

static DateTime getLatestDateTime(DateTime first, DateTime second) { return first.isAfterOrEq(second) ? first : second; }

static DateTime getEarliestDateTime(DateTime first, DateTime second) { return first.isBeforeOrEq(second) ? first : second; }

static String formatDateTime(DateTime dt) { return DateFormat.Hm().format(dt); } }

extension DateTimeExt on DateTime { bool isBeforeOrEq(DateTime second) { return isBefore(second) || isAtSameMomentAs(second); }

bool isAfterOrEq(DateTime second) { return isAfter(second) || isAtSameMomentAs(second); }

DateTime get startOfDay => DateTime(year, month, day, 0, 0); DateTime get endOfDay => DateTime(year, month, day + 1, 0, 0); DateTime startOfDayService(DateTime service) => DateTime(year, month, day, service.hour, service.minute); DateTime endOfDayService(DateTime service) => DateTime(year, month, day + 1, service.hour, service.minute); }

[helloooo]

what can i write here show error

[johnkassi]

Yes, so you have a schema in your Firebase, how your data looks like. This need to be the same (just in Dart) for your model, which in the example, it's the SportBooking.dart

I see. Next question: What package is this? How to add this package?

that is not package run this line it will generate g.dart file flutter pub run build_runner build --delete-conflicting-outputs

No longer error on g.dart because it got generated. But the import package still on error, how to fix?

i think that is your case booking_util.dart import 'package:intl/intl.dart';

class BookingUtil { BookingUtil._();

static bool isOverLapping(DateTime firstStart, DateTime firstEnd, DateTime secondStart, DateTime secondEnd) { return getLatestDateTime(firstStart, secondStart) .isBefore(getEarliestDateTime(firstEnd, secondEnd)); }

static DateTime getLatestDateTime(DateTime first, DateTime second) { return first.isAfterOrEq(second) ? first : second; }

static DateTime getEarliestDateTime(DateTime first, DateTime second) { return first.isBeforeOrEq(second) ? first : second; }

static String formatDateTime(DateTime dt) { return DateFormat.Hm().format(dt); } }

extension DateTimeExt on DateTime { bool isBeforeOrEq(DateTime second) { return isBefore(second) || isAtSameMomentAs(second); }

bool isAfterOrEq(DateTime second) { return isAfter(second) || isAtSameMomentAs(second); }

DateTime get startOfDay => DateTime(year, month, day, 0, 0); DateTime get endOfDay => DateTime(year, month, day + 1, 0, 0); DateTime startOfDayService(DateTime service) => DateTime(year, month, day, service.hour, service.minute); DateTime endOfDayService(DateTime service) => DateTime(year, month, day + 1, service.hour, service.minute); }

I renamed the file in util folder to BookingUtil.dart. As for the import package, I directed it to BookingUtil.dart.

But AppUtil still error for me

[radikris]

@johnkassi and @helloooo

These are only helper methods, so our business_logic will be cleaner, but here are the codesnippets:

// GENERATED CODE - DO NOT MODIFY BY HAND

part of 'sport_booking.dart';

// **************************************************************************
// JsonSerializableGenerator
// **************************************************************************

SportBooking _$SportBookingFromJson(Map<String, dynamic> json) => SportBooking(
      email: json['email'] as String?,
      phoneNumber: json['phoneNumber'] as String?,
      placeAddress: json['placeAddress'] as String?,
      bookingStart:
          AppUtil.timeStampToDateTime(json['bookingStart'] as Timestamp),
      bookingEnd: AppUtil.timeStampToDateTime(json['bookingEnd'] as Timestamp),
      placeId: json['placeId'] as String?,
      userId: json['userId'] as String?,
      userName: json['userName'] as String?,
      serviceName: json['serviceName'] as String?,
      serviceDuration: json['serviceDuration'] as int?,
      servicePrice: json['servicePrice'] as int?,
    );

Map<String, dynamic> _$SportBookingToJson(SportBooking instance) =>
    <String, dynamic>{
      'userId': instance.userId,
      'userName': instance.userName,
      'placeId': instance.placeId,
      'serviceName': instance.serviceName,
      'serviceDuration': instance.serviceDuration,
      'servicePrice': instance.servicePrice,
      'bookingStart': AppUtil.dateTimeToTimeStamp(instance.bookingStart),
      'bookingEnd': AppUtil.dateTimeToTimeStamp(instance.bookingEnd),
      'email': instance.email,
      'phoneNumber': instance.phoneNumber,
      'placeAddress': instance.placeAddress,
    };

AppUtil:

class AppUtil {
  AppUtil._();
....
  static DateTime timeStampToDateTime(Timestamp timestamp) {
    return DateTime.parse(timestamp.toDate().toString());
  }

  static Timestamp dateTimeToTimeStamp(DateTime? dateTime) {
    return Timestamp.fromDate(dateTime ?? DateTime.now()); //To TimeStamp
  }
...
}

The ApiRepository part is just this, behind a repository class but no really magic:

 CollectionReference bookings = FirebaseFirestore.instance.collection('bookings');

bookings.doc(placeId).collection('bookings').withConverter<SportBooking>(
          fromFirestore: (snapshots, _) => SportBooking.fromJson(snapshots.data()!),
          toFirestore: (snapshots, _) => snapshots.toJson(),
        ).where('bookingStart', isGreaterThanOrEqualTo: startOfDay)
                        .where('bookingStart', isLessThanOrEqualTo: endOfDay)
                        .snapshots(),