[Answered ]-Updating model objects in the database on Django

The problem you’re having is that you’re instantiating new Education instances in these lines:

    education = Education(school_name = value['schoolName'],
        user = request.user,
        field_study = value['fieldOfStudy'],
        degree = value['degree'],
        start_date = value['startDate']['year'] ,
        end_date = value['endDate']['year'])

When Django goes and tries to save these new instances (instances for which id is not yet defined), Django goes ahead and inserts the records rather than doing the update you want.

To do an update, you can either try to get the record, catching the DoesNotExist exception:

try:
    education = Education.objects.get(school_name=value['schoolName'],
        user=request.user,
        field_study=value['fieldOfStudy'],
        degree=value['degree'],
        start_date=value['startDate']['year'],
        end_date=value['endDate']['year'])
except Education.DoesNotExist:
    education = Education(school_name=value['schoolName'],
        user=request.user,
        field_study=value['fieldOfStudy'],
        degree=value['degree'],
        start_date=value['startDate']['year'],
        end_date=value['endDate']['year'])

then apply whatever updates you want/need.

Or you can use get_or_create to do the same:

(education, created) = Education.objects.get_or_create(school_name=value['schoolName'],
        user=request.user,
        field_study=value['fieldOfStudy'],
        degree=value['degree'],
        start_date=value['startDate']['year'],
        end_date=value['endDate']['year'])

If you don’t want to look up your instances by all of those values (they’re AND-ed), but want to initialize new instances with certain values, you should look up the defaults keyword for get_or_create.

Or you can use update_or_create as suggested by catavaran.

edit: Or, if you just want to do a straight update of a record without getting it (this also works with multiple objects at once), you can use queryset.update

Education.objects.filter(attribute=value, ...).update(attribute2=value2, ...)