CODEWITHSUNDEEP
pythonsqlitedatesqlalchemy
AdamGold
AdamGold

Reputation: 5081

SQLAlchemy SQLite compare dates

Using SQLite, trying to get every Appointment that its date + duration is between start_date and end_date. When adding an appointment with a certain date and 13:00 as an hour and duration of 40. Using start_date of 13:30 with duration of 40, it gives empty results (should find the aforementioned appointment).

appointment_end_date = func.datetime(
    Appointment.date, f"+{Appointment.duration} MINUTES"
)
query = Appointment.query.filter(
    and_(start_date <= appointment_end_date, appointment_end_date <= end_date
    )
)

When changing +{Appointment.duration} to 40, it works. How can I use a column inside this expression?

Upvotes: 0

Views: 114

Answers (1)

AdamGold
AdamGold

Reputation: 5081

A possible solution:

func.datetime(func.strftime("%s", Appointment.date) + Appointment.duration * 60, "unixepoch")

Upvotes: 1

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