Question

I would like to repopulate a DateField in my database ..for example for this "EXPIRYDATE": "2016-Sep-02", json value I get Feb. 2, 2016 in my database

expirydate = models.DateField(auto_now=True, blank=True, null=True)

This will try to loop through two objects in a list one in French and one in English so I'll try to update the expirydate field but it's not the proper value.

for lang in [0,1]:
    jobs_lang = data[lang]['jobs']
    for job in jobs_lang:
        emploi= Job.objects.filter(jobref=job['JOBREF'])
        if (emploi[0].expirydate != job['EXPIRYDATE']):
            emploi[0].expirydate = job['EXPIRYDATE']
            emploi[0].save()

Answer 1

If you know that the date format is going to be consistent, you can use the datetime module's strptime function to parse the date string:

import datetime

# the date_format should match what's provided in the JSON
date_format = '%Y-%b-%d' 
emploi[0].expirydate = datetime.datetime.strptime(job['EXPIRYDATE'], date_format)

Here, date_obj will be an object you save via the Django ORM into the database.

Also see https://docs.python.org/2/library/datetime.html#strftime-and-strptime-behavior for alternate format strings.

How to update a DateField in Django from a json object

1 个答案: