I want to create a view for Flask-Admin to enter coordinates in a Geometry Field. How can I create two Textfields and convert them into the Geometry Object?
This is what I have tried so far (Besides uncountable other things)
class CustomAdminConverter(AdminModelConverter):
@converts('geoalchemy2.types.Geometry')
def convert_geometry(self, field_args, **extra):
return WayToCoordinatesField(**field_args)
class WayToCoordinatesField(wtf.TextAreaField):
def process_data(self, value):
print "run" #is never called??
if value is None:
value = {}
else:
value = "test"
return value
class POIView(ModelView):
inline_model_form_converter = MyInlineModelConverter
model_form_converter=CustomAdminConverter
can_create = True
def __init__(self, session, **kwargs):
# You can pass name and other parameters if you want to
super(POIView, self).__init__(POI, session, **kwargs)
def scaffold_form(self):
form_class = super(POIView, self).scaffold_form()
form_class.way = wtf.TextAreaField("Coordinates")
return form_class
The POI Object looks like this:
class POI(db.Model):
__tablename__ = 'zo_poi'
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.Text())
tags = db.Column(HSTORE())
src = db.Column(db.Text())
way = db.Column(Geometry('POINT'))
intern = db.Column(db.BOOLEAN())
Thanks a lot for your help!
Got a solution with a interactive Map. Here is what I have done:
admin/fields.py:
templates/admin/admin_map.html
admin/views.py
admin/models.py