please help: problem saving strings to the database

[Sabine Maennel]

Hello,

I do not know why this is happening: If I try to update a database record the text gets into the field the wrong way:

models.py

from model_utils.models import TimeStampedModel

class ClassroomLog(TimeStampedModel):

    ...

    text = models.TextField()

then somewhere else I put data in that database like that:

        ...

        log = ClassroomLog.objects.get(...)

        log.text = "Hallo"

        log.save()

then the field in the database will contain this:

        ('Hallo',) 

What am I doing wrong here?

If I do this instead: 

        ...

        log = ClassroomLog.objects.get(...)

        log.delete()

        log = ClassroomLog(..., text = "Hallo", ...)

        log.save()

it works out as expected and the admin of the database shows for list_display = ('text',): 

        Hallo  

Can someone please help me with this. I tried for quite a while, but could not figure out what is happening.

         with kind regards and thanks in advance
                 Sabine

[Tiago Almeida]

Check if you have a comma after the string.

 log = ClassroomLog.objects.get(...)

        log.text = "Hallo",

        log.save()

[Szymon Krzemiński]

Looks like the record is stored as a one-element tuple. Don't know what's the source of this behaviour yet, though.

[Sabine Maennel]

Thank you Tiago, you got it. It was the Comma. So grateful to you. I searched for hours and did not catch this simple reason, that resulted form my copy and paste!

[Sabine Maennel]

Thank you Szymon, Tiago just got it: I had a misplaced comma that caused the error.