Transform the value to a Geometry object.
(self, value)
| 34 | self.widget.attrs["geom_type"] = self.geom_type |
| 35 | |
| 36 | def to_python(self, value): |
| 37 | """Transform the value to a Geometry object.""" |
| 38 | if value in self.empty_values: |
| 39 | return None |
| 40 | |
| 41 | if not isinstance(value, GEOSGeometry): |
| 42 | if hasattr(self.widget, "deserialize"): |
| 43 | value = self.widget.deserialize(value) |
| 44 | else: |
| 45 | try: |
| 46 | value = GEOSGeometry(value) |
| 47 | except (GEOSException, ValueError, TypeError): |
| 48 | value = None |
| 49 | if value is None: |
| 50 | raise ValidationError( |
| 51 | self.error_messages["invalid_geom"], code="invalid_geom" |
| 52 | ) |
| 53 | |
| 54 | # Try to set the srid |
| 55 | if not value.srid: |
| 56 | try: |
| 57 | value.srid = self.widget.map_srid |
| 58 | except AttributeError: |
| 59 | if self.srid: |
| 60 | value.srid = self.srid |
| 61 | return value |
| 62 | |
| 63 | def clean(self, value): |
| 64 | """ |