Hi David,
thanks for your help. I tried setting dim to 4 but did't see any change.
Here is my model:
```python
from django.contrib.gis.db import models
class Kmsys(models.Model):
# Define constants ----------------------------
EPSG_CODE = 31287
NAME_OF_GEOMETRY_FIELD = "geom"
# F I E L D S -------------------------------------------------
id = models.IntegerField(primary_key=True)
geom = models.MultiLineStringField(
dim=4, srid=EPSG_CODE, blank=True, null=True, spatial_index=True
) # EPSG:31287=AustriaLambert
object_id = models.BigIntegerField(db_column="OBJECTID", unique=True)
code = models.CharField(max_length=80, db_column="KMSYS_CODE", unique=False)
name = models.CharField(max_length=500, db_column="KMSYS_BEZEICHNUNG",
unique=False)
start_date = models.DateTimeField(db_column="KMSYS_START_DATUM")
end_date = models.DateTimeField(db_column="KMSYS_ENDE_DATUM")
len = models.FloatField(db_column="LEN")
km_from = models.FloatField(db_column="KMSYS_KMVON")
km_till = models.FloatField(db_column="KMSYS_KMBIS")
parts_quantity = models.IntegerField(db_column="TEILE_ANZ")
fme_date = models.DateTimeField(db_column="FME_DATUM")
se_anno_cad_data = models.FileField(db_column="SE_ANNO_CAD_DATA")
bauk_id = models.FloatField(db_column="BAUK_ID")
# Meta-Class ------------------------------------------------------
class Meta:
managed = False
db_table = "KMSYS"
# db_table = '"public"."KMSYS"'
verbose_name = "Kmsys"
verbose_name_plural = "Kmsys"
ordering = ["code"]
# Methods ---------------------------------------------------------
def __str__(self) -> str:
"""String for representing the Model object."""
return f"{self.code} | {self.name} | {self.start_date} | {self.end_date} | {
self.km_from} | {self.km_till} | {self.parts_quantity} | {self.fme_date} | {
self.se_anno_cad_data} | {self.bauk_id}"
```
And this is the pytest that keeps failing -> At the beginning i just tested
the dim=3 manually without db-access
from django.contrib.gis.geos import GEOSGeometry, LineString,
MultiLineString, Point
from rest_framework.reverse import reverse
import logging
import pytest
from kmsys.models import Kmsys
from kmsys.test.test_runner import DjangoNoCreateAndDropRunner
logger = logging.getLogger(__name__)
# use pytest marks to tell pytest-django your test needs database access!
In case only a certain method needs db-access use @pytest.mark.django_db as
decorator of the according test-method.
pytestmark = pytest.mark.django_db
class TestModel:
"""
Test suite for KMSYS
"""
def test_query_kmsys(self):
"""
Test whether the kmsys can be accessed.
"""
# ARRANGE -------------
# simple dimension test with GDAL
# p: OGRGeometry = OGRGeometry("Point (1 2 3 )")
# assert p.coord_dim == 3
# simple dimension test with GEOS
p: GEOSGeometry = GEOSGeometry("Point (1 2 3 )")
assert p.hasz
# simple dimension test with GEOS Multilinestring
ls1 = LineString([(0, 0, 150), (1, 1, 151)], srid="31287")
ls2 = LineString([(2, 2, 153), (3, 3, 154)], srid="31287")
mls = MultiLineString(ls1, ls2)
assert mls.hasz
# ACT -----------------
first_kmsys: Kmsys = Kmsys.objects.all().first()
logger.info(f"first: {first_kmsys}")
# ASSERT -----------------
assert first_kmsys.geom.hasz
assert len(first_kmsys.geom.coords[0][0]) == 3
assert len(Kmsys.objects.all()) == 388
regards Richard
David James Nwoyie schrieb am Samstag, 24. Februar 2024 um 21:01:56 UTC+1:
> Increase the dim to 4 because of the Django of use 0 as the starting point
>
> On Sat, Feb 24, 2024, 8:48 PM Richard Mair <[email protected]> wrote:
>
>> Hi i am using
>>
>> geom = models.MultiLineStringField(
>> dim=3, srid=EPSG_CODE, blank=True, null=True, spatial_index=True
>> ) # EPSG:3128=AustriaLambert
>>
>>
>> and my PostGIS-DB is using (MultilinestringM
>>
>> ALTER TABLE IF EXISTS public."KMSYS"
>> ADD COLUMN geom geometry(MultiLineStringM,31287);
>>
>> but when I access my Model I only get 2 dimensional response
>>
>> Can anybody lead me to the correct handling
>>
>>
>>
>>
>>
>>
>>
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>>
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