PointField in form on save give TypeError: <Point object at 0x7fbf5c0f21c0> is not JSON serializable

[pat1]

model.py

`class GeorefencedImage(models.Model):
    geom = PointField()
    comment = models.TextField()
    image = ImageField(processors=[Transpose(),ResizeToFit(600, 600)],
                                          format='jpeg',
                                          options={'quality': 70})

view.py

class ImageForm(forms.ModelForm):
    geom = PointField()
    class Meta:
        model = GeorefencedImage
        fields = ( 'geom','image','comment')

def insertData(request):
    if request.method == 'POST': # If the form has been submitted...
        form = ImageForm(request.POST, request.FILES) # A form bound to the POST data
        if form.is_valid(): # All validation rules pass
            form.save()
    else:
        form = ImageForm() # An unbound form
        return render(request, 'insertdata/form.html',{'form': form})

settings.py

SERIALIZATION_MODULES = {
    'geojson' : 'djgeojson.serializers'
}

url.py

urlpatterns = [
    url(r'^$',
        insertData,name="insertdata"),
]

I get:

Django version 1.9, using settings 'rmap.settings'
Starting development server at http://127.0.0.1:8888/
Quit the server with CONTROL-C.
[25/Feb/2016 21:02:11] "GET /insertdata/ HTTP/1.1" 200 5975
Internal Server Error: /insertdata/
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/django/core/handlers/base.py", line 149, in get_response
    response = self.process_exception_by_middleware(e, request)
  File "/usr/lib/python2.7/site-packages/django/core/handlers/base.py", line 147, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/lib/python2.7/site-packages/django/contrib/auth/decorators.py", line 23, in _wrapped_view
    return view_func(request, *args, **kwargs)
  File "/home/pat1/git/rmap/python/insertdata/views.py", line 43, in insertData
    form.save()
  File "/usr/lib/python2.7/site-packages/django/forms/models.py", line 451, in save
    self.instance.save()
  File "/usr/lib/python2.7/site-packages/django/db/models/base.py", line 700, in save
    force_update=force_update, update_fields=update_fields)
  File "/usr/lib/python2.7/site-packages/django/db/models/base.py", line 728, in save_base
    updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
  File "/usr/lib/python2.7/site-packages/django/db/models/base.py", line 812, in _save_table
    result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
  File "/usr/lib/python2.7/site-packages/django/db/models/base.py", line 851, in _do_insert
    using=using, raw=raw)
  File "/usr/lib/python2.7/site-packages/django/db/models/manager.py", line 122, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/django/db/models/query.py", line 1039, in _insert
    return query.get_compiler(using=using).execute_sql(return_id)
  File "/usr/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 1063, in execute_sql
    for sql, params in self.as_sql():
  File "/usr/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 1023, in as_sql
    for obj in self.query.objs
  File "/usr/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 962, in prepare_value
    value = field.get_db_prep_save(value, connection=self.connection)
  File "/usr/lib/python2.7/site-packages/django/db/models/fields/__init__.py", line 728, in get_db_prep_save
    prepared=False)
  File "/usr/lib/python2.7/site-packages/jsonfield/fields.py", line 100, in get_db_prep_value
    return json.dumps(value, **self.dump_kwargs)
  File "/usr/lib64/python2.7/json/__init__.py", line 250, in dumps
    sort_keys=sort_keys, **kw).encode(obj)
  File "/usr/lib64/python2.7/json/encoder.py", line 207, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File "/usr/lib64/python2.7/json/encoder.py", line 270, in iterencode
    return _iterencode(o, 0)
  File "/usr/lib/python2.7/site-packages/jsonfield/encoder.py", line 59, in default
    return super(JSONEncoder, self).default(obj)
  File "/usr/lib64/python2.7/json/encoder.py", line 184, in default
    raise TypeError(repr(o) + " is not JSON serializable")
TypeError: <Point object at 0x7fbf5c0f21c0> is not JSON serializable
[25/Feb/2016 21:02:28] "POST /insertdata/ HTTP/1.1" 500 160979

Thanks for your attention Paolo

[pat1]

It works with:

class ImageForm(forms.ModelForm):
    #geom = PointField()

    class Meta:
        model = GeorefencedImage
        fields = ('geom','image','comment')
        widgets = {'geom': LeafletWidget()}

as suggested for new django versions, but the widget show a "full" menu, not only the geopoint marker.

[pat1]

The problem there is with forms.Form too, so is not possible to use simple forms too.

[ghost]

https://github.com/Ry10p/django-leaflet/blob/master/README.rst

I ran into the same problem so I did a 3 or 4 line change in the forms(js) to make it work

IM NEW PLEASE DONT JUDGE TO HARD

[ghost]

As for Django 2.0.2, using PointField() still throws an error but widgets = {'geom': LeafletWidget()} works.