Hello,
I am using the Django admin tool as an internal tool to reach into a remote
database.
Most of my models work perfectly with the save. method additions I have
added, but there are 2 that are not working.
What happens is that the admin screen gives a successful "save" message,
but the grid view doesn't show any records.
When I click on the entry in the right hand "Recent changes" list, it says:
Change learner batch back to draft with ID "None" doesn't exist. Perhaps it
was deleted?
Any advice on why this is happening would be welcome :)
Here is the model in question:
class ChangeLearnerBatchBackToDraft(models.Model):
ticket_number = models.CharField(max_length=10, default='')
provider_accreditation_num = models.CharField(max_length=30)
batch_id = models.CharField(max_length=30)
notes_log = models.TextField(default="No notes added", editable=False)
def save(self, *args, **kwargs):
try:
commando_conn = psycopg2.connect(f"dbname='{DB}' user='{USER}' host='{HOST}'
password='{PASS}'")
commando_cur = commando_conn.cursor()
commando_cur.execute(f"select * from res_partner where
provider_accreditation_num='{self.provider_accreditation_num}';")
res = commando_cur.fetchone()
real_provider_id = res[0]
self.notes_log = self.notes_log+f"\n{real_provider_id}\n"
except Exception as e:
raise AssertionError(e)
def __str__(self):
return str(self.provider_accreditation_num)+" - "+str(self.batch_id)
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