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Fix: Passt an, dass bei monatlichen Transaktionen der Tag entsprechend hergenommen wird

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This commit is contained in:
DragonSlayer_14
2026-01-25 16:34:14 +01:00
parent c86c2dd888
commit 78add73278
2 changed files with 66 additions and 2 deletions
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28
lib/PlatformDependent/Web/date_utils_web.dart
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@@ -16,4 +16,32 @@ class DateUtils {
final DateTime monthDate,
final int monthsToAdd,
) => DateTime(monthDate.year, monthDate.month + monthsToAdd);
/// Returns the number of days in a month, according to the proleptic
/// Gregorian calendar.
///
/// This applies the leap year logic introduced by the Gregorian reforms of
/// 1582. It will not give valid results for dates prior to that time.
static int getDaysInMonth(final int year, final int month) {
if (month == DateTime.february) {
final bool isLeapYear =
(year % 4 == 0) && (year % 100 != 0) || (year % 400 == 0);
return isLeapYear ? 29 : 28;
}
const List<int> daysInMonth = <int>[
31,
-1,
31,
30,
31,
30,
31,
31,
30,
31,
30,
31,
];
return daysInMonth[month - 1];
}
}

40
lib/Tasks/generate_transactions_task.dart
View File

@@ -67,15 +67,51 @@ class GenerateTransactionsTask extends Task {
case TimeFrameEnum.weekly:
newTransactionDate = lastTransactionDate.add(const Duration(days: 7));
case TimeFrameEnum.monthly:
newTransactionDate = DateUtils.addMonthsToMonthDate(
final DateTime monthDate = DateUtils.addMonthsToMonthDate(
lastTransactionDate,
1,
);
final int day =
recurringTransaction.startDate!.day <
DateUtils.getDaysInMonth(
monthDate.year,
monthDate.day,
)
? recurringTransaction.startDate!.day
: DateUtils.getDaysInMonth(
monthDate.year,
monthDate.month,
);
newTransactionDate = DateTime(
monthDate.year,
monthDate.month,
day,
);
case TimeFrameEnum.yearly:
newTransactionDate = DateUtils.addMonthsToMonthDate(
final DateTime monthDate = DateUtils.addMonthsToMonthDate(
lastTransactionDate,
12,
);
final int day =
recurringTransaction.startDate!.day <
DateUtils.getDaysInMonth(
monthDate.year,
monthDate.day,
)
? recurringTransaction.startDate!.day
: DateUtils.getDaysInMonth(
monthDate.year,
monthDate.month,
);
newTransactionDate = DateTime(
monthDate.year,
monthDate.month,
day,
);
}
} else {
newTransactionDate = recurringTransaction.startDate!;