def clean_qgis_file(self):
try:
qgis_file = self.cleaned_data['qgis_file']
# validate extension
file_extension = os.path.splitext(qgis_file.name)[1]
if file_extension.lower() not in ('.qgs', '.qgz'):
raise Exception(_("File must have 'qgs' or 'qgz' extension"))
# for QGIS qgz file format
if file_extension.lower() == '.qgz':
zfile = zipfile.ZipFile(qgis_file, 'r')
for fileinfo in zfile.infolist():
if os.path.splitext(
fileinfo.filename)[1].lower() == '.qgs':
qzfile = fileinfo.filename
# put qzfile to qgis_file
qgis_file = ContentFile(zfile.open(qzfile, 'r').read(),
name=qzfile)
# Update path property for QGIS api
qgis_file.path = self.cleaned_data['qgis_file'].file.path
kwargs = {'group': self.group}
if self.instance.pk:
kwargs['instance'] = self.instance
self.qgisProject = QgisProject(qgis_file, **kwargs)
self.qgisProject.clean()
except Exception as e:
raise ValidationError(str(e))
return qgis_file
def get_graph_file(path, name=None):
"""Get graph file in Django object for testing purposes"""
fname = join(dirname(__file__), path)
# We must use ContentFile to avoid SuspiciousOperation errors.
# We read the data outside of django and pass it as a string.
f = ContentFile(open(fname).read())
if name is None:
name = os.path.basename(path)
f.name = name
f.path = name
return f
def handle(self, *args, **options):
fname = join(dirname(cd20.__file__), 'data', 'karate.gml')
# Get existing (or new) dataset #10:
ds = Dataset.objects.get_or_create(id=10)[0]
if ds.netfile: ds.netfile.delete()
# We must use ContentFile to avoid SuspiciousOperation errors.
# We read the data outside of django and pass it as a string.
f = ContentFile(open(fname).read())
f.name = 'karate.gml'
f.path = 'karate.gml'
ds.set_network(f)
ds.save()
def clean_qgis_file(self):
try:
qgis_file = self.cleaned_data['qgis_file']
kwargs = {'group': self.group, 'original_name': qgis_file.name}
# validate extension
file_extension = os.path.splitext(qgis_file.name)[1]
if file_extension.lower() not in ('.qgs', '.qgz'):
raise Exception(_("File must have 'qgs' or 'qgz' extension"))
# for QGIS qgz file format
if file_extension.lower() == '.qgz':
zfile = zipfile.ZipFile(qgis_file, 'r')
for fileinfo in zfile.infolist():
if os.path.splitext(
fileinfo.filename)[1].lower() == '.qgs':
qzfile = fileinfo.filename
# put qzfile to qgis_file
qgis_file = ContentFile(zfile.open(qzfile, 'r').read(),
name=qzfile)
# Update path property for QGIS api
qgis_file.path = self.cleaned_data['qgis_file'].file.path
if self.instance.pk:
kwargs['instance'] = self.instance
# Handles authentication before checking the project file
authentication_id = self.data.get('authentication_id')
authentication_username = self.data.get('authentication_username')
authentication_password = self.data.get('authentication_password')
if authentication_id and authentication_username and authentication_password:
QgisAuth.objects.create(
id=authentication_id,
name='Auth config: %s' % authentication_id,
config=
"{{'password': '******', 'username': '******', 'realm': ''}}"
.format(username=authentication_username,
password=authentication_password))
self.qgisProject = QgisProject(qgis_file, **kwargs)
self.qgisProject.clean()
except Exception as e:
raise ValidationError(str(e))
return qgis_file
