def handle(self, *args, **options):
for resource in Resource.objects.all():
logger.warning('Save resource: {pk}'.format(pk=resource.pk))
try:
resource.save(current_user=None, synchronize=True)
except Exception as e:
logger.error(e)
def delete(self, *args, current_user=None, **kwargs):
with_user = current_user
# On supprime la ressource CKAN
if with_user:
username = with_user.username
apikey = CkanHandler.get_user(username)['apikey']
with CkanUserHandler(apikey=apikey) as ckan_user:
ckan_user.delete_resource(self.name)
else:
CkanHandler.delete_resource(self.name)
# On supprime les ressources MRA
try:
MRAHandler.del_layer(self.name)
ws_name = self.resource.dataset.organisation.slug
if self.type == 'vector':
MRAHandler.del_featuretype(ws_name, 'public', self.name)
if self.type == 'raster':
MRAHandler.del_coverage(ws_name, self.name, self.name)
# MRAHandler.del_coveragestore(ws_name, self.name)
except Exception as e:
logger.error(e)
pass
# On supprime la table de données PostGIS
try:
drop_table(self.name)
except Exception as e:
logger.error(e)
pass
# Puis on supprime l'instance
super().delete(*args, **kwargs)
def synchronize(modeladmin, request, queryset):
for dataset in queryset:
logger.info('Force save dataset {pk}: {slug}'.format(
slug=dataset.slug or slugify(dataset.title), pk=dataset.pk))
try:
dataset.save(current_user=None, synchronize=True)
except Exception as e:
logger.error(e)
continue
def export_users_view(self, request):
try:
data = self.get_users_data()
except Exception as e:
logger.error(e)
messages.error(request, "Une erreur est survenue.")
url = reverse(
'admin:auth_user_changelist', current_app=self.admin_site.name)
return HttpResponseRedirect(url)
response = HttpResponse(content_type='text/csv')
writer = csv.DictWriter(response, fieldnames=data[0].keys())
writer.writeheader()
writer.writerows(data)
response['Content-Disposition'] = "attachment; filename=export_users_{}.csv".format(
timezone.now())
return response
def sender(template_name, to=None, cc=None, bcc=None, attach_files=[], **kvp):
try:
tmpl = Mail.objects.get(template_name=template_name)
except Mail.DoesNotExist:
return
if to and cc:
for v in to:
try:
cc.remove(v)
except ValueError:
continue
if to and bcc:
for v in to:
try:
bcc.remove(v)
except ValueError:
continue
subject = tmpl.subject.format(**kvp)
body = PartialFormatter().format(tmpl.message, **kvp)
from_email = DEFAULT_FROM_EMAIL
connection = get_connection(fail_silently=False)
mail = EmailMultiAlternatives(
subject=subject, body=body,
from_email=from_email, to=to,
cc=cc, bcc=bcc, connection=connection)
for attach_file in attach_files:
mail.attach_file(attach_file)
try:
mail.send()
except SMTPDataError as e:
logger.error(e)
def save(self, *args, harvest=True, **kwargs):
Category = apps.get_model(app_label='idgo_admin',
model_name='Category')
Dataset = apps.get_model(app_label='idgo_admin', model_name='Dataset')
License = apps.get_model(app_label='idgo_admin', model_name='License')
Resource = apps.get_model(app_label='idgo_admin',
model_name='Resource')
ResourceFormats = apps.get_model(app_label='idgo_admin',
model_name='ResourceFormats')
# (1) Supprimer les jeux de données qui ne sont plus synchronisés
previous = self.pk and RemoteCsw.objects.get(pk=self.pk)
if previous:
for dataset in Dataset.harvested_csw.filter(
remote_instance=previous):
dataset.delete()
else:
# Dans le cas d'une création, on vérifie si l'URL CSW est valide
try:
with CswBaseHandler(self.url):
pass
except CswBaseError as e:
raise ValidationError(e.__str__(), code='url')
# (2) Sauver l'instance
super().save(*args, **kwargs)
# (3) Créer/Mettre à jour les jeux de données synchronisés
# On récupère dans le `stack` l'utilisateur effectuant l'opération
editor = None
for entry in inspect.stack():
try:
editor = entry[0].f_locals['request'].user._wrapped
except (KeyError, AttributeError):
continue
break
if not previous:
return
if harvest:
# Puis on moissonne le catalogue
try:
ckan_ids = []
geonet_ids = []
with transaction.atomic():
with CswBaseHandler(self.url) as csw:
packages = csw.get_packages(
xml=self.getrecords or None)
for package in packages:
if not package['type'] == 'dataset':
continue
geonet_id = package['id']
update_frequency = dict(Dataset.FREQUENCY_CHOICES).get(
package.get('frequency'), 'unknown')
update_frequency = package.get('frequency')
if not (update_frequency and update_frequency in dict(
Dataset.FREQUENCY_CHOICES).keys()):
update_frequency = 'unknown'
date_creation = package.get('dataset_creation_date',
None)
if date_creation:
try:
date_creation = datetime.strptime(
date_creation, ISOFORMAT_DATE)
except ValueError as e:
logger.warning(e)
date_creation = None
date_modification = package.get(
'dataset_modification_date', None)
if date_modification:
try:
date_modification = datetime.strptime(
date_modification, ISOFORMAT_DATE)
except ValueError as e:
logger.warning(e)
date_modification = None
date_publication = package.get(
'dataset_publication_date', None)
if date_publication:
try:
date_publication = datetime.strptime(
date_publication, ISOFORMAT_DATE)
except ValueError as e:
logger.warning(e)
date_publication = None
# Licence
license_titles = package.get('license_titles')
filters = [
Q(slug__in=license_titles),
Q(title__in=license_titles),
Q(alternate_titles__overlap=license_titles),
]
license = License.objects.filter(reduce(
ior, filters)).distinct().first()
if not license:
try:
license = License.objects.get(
slug=settings.DEFAULTS_VALUES.get(
'LICENSE'))
except License.DoesNotExist:
license = License.objects.first()
# On pousse la fiche de MD dans Geonet
if not geonet.get_record(geonet_id):
try:
geonet.create_record(geonet_id, package['xml'])
except Exception as e:
logger.warning(
'La création de la fiche de métadonnées a échoué.'
)
logger.error(e)
else:
geonet_ids.append(geonet_id)
geonet.publish(
geonet_id) # Toujours publier la fiche
else:
try:
geonet.update_record(geonet_id, package['xml'])
except Exception as e:
logger.warning(
'La mise à jour de la fiche de métadonnées a échoué.'
)
logger.error(e)
slug = 'sync{}-{}'.format(
str(uuid.uuid4())[:7].lower(),
slugify(geonet_id))[:100]
kvp = {
'slug':
slug,
'title':
package.get('title'),
'description':
package.get('notes'),
'date_creation':
date_creation and date_creation.date(),
'date_modification':
date_modification and date_modification.date(),
'date_publication':
date_publication and date_publication.date(),
'editor':
editor,
'license':
license,
'owner_email':
self.organisation.email or DEFAULT_CONTACT_EMAIL,
'owner_name':
self.organisation.legal_name
or DEFAULT_PLATFORM_NAME,
'organisation':
self.organisation,
'published':
not package.get('private'),
'remote_instance':
self,
'remote_dataset':
geonet_id,
'update_frequency':
update_frequency,
'bbox':
package.get('bbox'),
# broadcaster_email
# broadcaster_name
# data_type
# geocover
'geonet_id':
geonet_id,
# granularity
# thumbnail
# support
}
dataset, created = Dataset.harvested_csw.update_or_create(
**kvp)
if created:
ckan_ids.append(dataset.ckan_id)
categories_name = [
m['name'] for m in package.get('groups', [])
]
iso_topic_reverse = dict(
(v, k)
for k, v in Category._meta.fields[5].choices)
filters = [
Q(slug__in=categories_name),
Q(name__in=categories_name),
Q(iso_topic__in=[
m['name'] for m in package.get('groups', [])
]),
Q(iso_topic__in=[
iso_topic_reverse.get(name)
for name in categories_name
]),
Q(alternate_titles__overlap=categories_name),
]
categories = Category.objects.filter(
reduce(ior, filters)).distinct()
if categories:
dataset.categories.set(categories, clear=True)
if not created:
dataset.keywords.clear()
keywords = [
tag['display_name'] for tag in package.get('tags')
]
dataset.keywords.add(*keywords)
dataset.save(current_user=None,
synchronize=True,
activate=False)
for resource in package.get('resources', []):
try:
ckan_id = uuid.uuid4()
except ValueError as e:
logger.exception(e)
logger.error(
"I can't crash here, so I do not pay any attention to this error."
)
continue
filters = []
protocol = resource.get('protocol')
protocol and filters.append(Q(protocol=protocol))
mimetype = resource.get('mimetype')
mimetype and filters.append(
Q(mimetype__overlap=[mimetype]))
try:
format_type = ResourceFormats.objects.get(
reduce(iand, filters))
except (ResourceFormats.MultipleObjectsReturned,
ResourceFormats.DoesNotExist, TypeError):
format_type = None
kvp = {
'ckan_id': ckan_id,
'dataset': dataset,
'format_type': format_type,
'title': resource['name'] or resource['url'],
'referenced_url': resource['url'],
}
try:
resource = Resource.objects.get(
ckan_id=ckan_id)
except Resource.DoesNotExist:
resource = Resource.default.create(save_opts={
'current_user':
editor,
'synchronize':
True
},
**kvp)
else:
for k, v in kvp.items():
setattr(resource, k, v)
resource.save(current_user=editor,
synchronize=True)
except Exception as e:
for id in ckan_ids:
logger.warning(
'Delete CKAN package : {id}.'.format(id=str(id)))
CkanHandler.purge_dataset(str(id))
for id in geonet_ids:
logger.warning('Delete MD : {id}.'.format(id=str(id)))
geonet.delete_record(id)
logger.error(e)
raise CriticalError()
else:
for id in ckan_ids:
CkanHandler.publish_dataset(id=str(id), state='active')
def save(self, *args, **kwargs):
Category = apps.get_model(app_label='idgo_admin',
model_name='Category')
Dataset = apps.get_model(app_label='idgo_admin', model_name='Dataset')
License = apps.get_model(app_label='idgo_admin', model_name='License')
Resource = apps.get_model(app_label='idgo_admin',
model_name='Resource')
ResourceFormats = apps.get_model(app_label='idgo_admin',
model_name='ResourceFormats')
# (1) Supprimer les jeux de données qui ne sont plus synchronisés
previous = self.pk and RemoteCkan.objects.get(pk=self.pk)
if previous:
remote_organisation__in = [
x for x in (previous.sync_with or [])
if x not in (self.sync_with or [])
]
filter = {
'remote_instance': previous,
'remote_organisation__in': remote_organisation__in,
}
# TODO: 'Dataset.harvested_ckan.filter(**filter).delete()' ne fonctionne pas
for dataset in Dataset.harvested_ckan.filter(**filter):
dataset.delete()
else:
# Dans le cas d'une création, on vérifie si l'URL CKAN est valide
try:
with CkanBaseHandler(self.url):
pass
except CkanBaseError as e:
raise ValidationError(e.__str__(), code='url')
# (2) Sauver l'instance
super().save(*args, **kwargs)
# (3) Créer/Mettre à jour les jeux de données synchronisés
# On récupère dans le `stack` l'utilisateur effectuant l'opération
editor = User.objects.get(pk=DEFAULT_USER_ID)
for entry in inspect.stack():
try:
editor = entry[0].f_locals['request'].user._wrapped
except (KeyError, AttributeError):
continue
break
# Puis on moissonne le catalogue
if self.sync_with:
try:
ckan_ids = []
with transaction.atomic():
# TODO: Factoriser
for value in self.sync_with:
with CkanBaseHandler(self.url) as ckan:
ckan_organisation = ckan.get_organisation(
value,
include_datasets=True,
include_groups=True,
include_tags=True)
if not ckan_organisation.get('package_count', 0):
continue
for package in ckan_organisation.get('packages'):
if not package['state'] == 'active' \
or not package['type'] == 'dataset':
continue
with CkanBaseHandler(self.url) as ckan:
package = ckan.get_package(package['id'])
ckan_id = uuid.UUID(package['id'])
update_frequency = dict(
Dataset.FREQUENCY_CHOICES).get(
package.get('frequency'), 'unknown')
update_frequency = package.get('frequency')
if not (update_frequency and update_frequency
in dict(Dataset.FREQUENCY_CHOICES).keys()):
update_frequency = 'unknown'
metadata_created = package.get(
'metadata_created', None)
if metadata_created:
metadata_created = datetime.strptime(
metadata_created, ISOFORMAT_DATETIME)
metadata_modified = package.get(
'metadata_modified', None)
if metadata_modified:
metadata_modified = datetime.strptime(
metadata_modified, ISOFORMAT_DATETIME)
try:
mapping_licence = MappingLicence.objects.get(
remote_ckan=self,
slug=package.get('license_id'))
except MappingLicence.DoesNotExist:
try:
license = License.objects.get(
slug='other-at')
except MappingLicence.DoesNotExist:
license = None
else:
logger.warning("'{}' non trouvé".format(
package.get('license_id')))
license = mapping_licence.licence
slug = 'sync{}-{}'.format(
str(uuid.uuid4())[:7].lower(),
package.get('name'))[:100]
kvp = {
'slug':
slug,
'title':
package.get('title'),
'description':
package.get('notes'),
'date_creation':
metadata_created and metadata_created.date(),
'date_modification':
metadata_modified and metadata_modified.date(),
# date_publication
'editor':
editor,
'license':
license,
'owner_email':
self.organisation.email
or DEFAULT_CONTACT_EMAIL,
'owner_name':
self.organisation.legal_name
or DEFAULT_PLATFORM_NAME,
'organisation':
self.organisation,
'published':
not package.get('private'),
'remote_instance':
self,
'remote_dataset':
ckan_id,
'remote_organisation':
value,
'update_frequency':
update_frequency,
# bbox
# broadcaster_email
# broadcaster_name
# data_type
# geocover
# geonet_id
# granularity
# thumbnail
# support
}
dataset, created = Dataset.harvested_ckan.update_or_create(
**kvp)
mapping_categories = MappingCategory.objects.filter(
remote_ckan=self,
slug__in=[
m['name']
for m in package.get('groups', [])
])
if mapping_categories:
dataset.categories = set(
mc.category for mc in mapping_categories)
if not created:
dataset.keywords.clear()
keywords = [
tag['display_name']
for tag in package.get('tags')
]
dataset.keywords.add(*keywords)
dataset.save(current_user=None,
synchronize=True,
activate=False)
ckan_ids.append(dataset.ckan_id)
for resource in package.get('resources', []):
try:
ckan_id = uuid.UUID(resource['id'])
except ValueError as e:
logger.exception(e)
logger.error(
"I can't crash here, so I do not pay any attention to this error."
)
continue
try:
ckan_format = resource['format'].upper()
format_type = ResourceFormats.objects.get(
ckan_format=ckan_format)
except (ResourceFormats.
MultipleObjectsReturned,
ResourceFormats.DoesNotExist,
TypeError) as e:
logger.exception(e)
logger.error(
"I can't crash here, so I do not pay any attention to this error."
)
format_type = None
kvp = {
'ckan_id': ckan_id,
'dataset': dataset,
'format_type': format_type,
'title': resource['name'],
'referenced_url': resource['url'],
}
try:
resource = Resource.objects.get(
ckan_id=ckan_id)
except Resource.DoesNotExist:
resource = Resource.default.create(
save_opts={
'current_user': None,
'synchronize': True
},
**kvp)
else:
for k, v in kvp.items():
setattr(resource, k, v)
resource.save(current_user=None,
synchronize=True)
except Exception as e:
for id in ckan_ids:
CkanHandler.purge_dataset(str(id))
logger.error(e)
raise CriticalError()
else:
for id in ckan_ids:
CkanHandler.publish_dataset(id=str(id), state='active')
def __init__(self, *args, **kwargs):
self.cleaned_data = {}
super().__init__(*args, **kwargs)
instance = kwargs.get('instance', None)
if instance and instance.url:
self.fields['url'].widget.attrs['readonly'] = True
# Récupérer la liste des organisations
try:
with CkanBaseHandler(instance.url) as ckan:
organisations = ckan.get_all_organisations(
all_fields=True, include_dataset_count=True)
except CkanBaseError as e:
self.add_error('url', e.message)
else:
self.fields['sync_with'].choices = (
(organisation['name'], '{} ({})'.format(
organisation['display_name'],
organisation.get('package_count',
organisation.get('packages', None))))
for organisation in organisations)
mapping = []
# Initialize categories mapping
# =============================
try:
with CkanBaseHandler(instance.url) as ckan:
remote_categories = ckan.get_all_categories(
all_fields=True)
except CkanBaseError as e:
logger.error(e)
else:
fields_name = []
for remote_category in remote_categories:
field_name = ''.join(['cat_', remote_category['name']])
fields_name.append(field_name)
try:
filter = {
'remote_ckan': instance,
'slug': field_name[4:]
}
initial = MappingCategory.objects.filter(
**filter).first().category
except Exception as e:
logger.warning(e)
try:
initial = Category.objects.get(slug=field_name[4:])
except Exception as e:
logger.warning(e)
initial = None
self.fields[field_name] = forms.ModelChoiceField(
label=remote_category['title'],
empty_label="Sélectionnez une valeur",
required=False,
queryset=Category.objects.all(),
initial=initial,
)
mapping.append({
'name': 'Category',
'title': 'Categories',
'fields_name': fields_name,
})
# Initialize licences mapping
# ===========================
try:
with CkanBaseHandler(instance.url) as ckan:
remote_licenses = ckan.get_all_licenses(all_fields=True)
except CkanBaseError as e:
logger.error(e)
else:
fields_name = []
for remote_license in remote_licenses:
field_name = ''.join(['lic_', remote_license['id']])
fields_name.append(field_name)
try:
filter = {
'remote_ckan': instance,
'slug': field_name[4:]
}
initial = MappingLicence.objects.filter(
**filter).first().licence
except Exception as e:
logger.warning(e)
try:
initial = License.objects.get(slug=field_name[4:])
except Exception as e:
logger.warning(e)
initial = None
self.fields[field_name] = forms.ModelChoiceField(
label=remote_license['title'],
empty_label="Sélectionnez une valeur",
required=False,
queryset=License.objects.all(),
initial=initial,
)
mapping.append({
'name': 'License',
'title': 'Licences',
'fields_name': fields_name,
})
else:
self.fields['sync_with'].widget = forms.HiddenInput()
self.fields['sync_frequency'].widget = forms.HiddenInput()
def save(self,
*args,
current_user=None,
synchronize=False,
file_extras=None,
**kwargs):
# Version précédante de la ressource (avant modification)
previous, created = self.pk \
and (Resource.objects.get(pk=self.pk), False) or (None, True)
if previous:
# crs est immuable sauf si le jeu de données change (Cf. plus bas)
self.crs = previous.crs
# Quelques valeur par défaut à la création de l'instance
if created or not (
# Ou si l'éditeur n'est pas partenaire du CRIGE
current_user and current_user.profile.crige_membership):
# Mais seulement s'il s'agit de données SIG, sauf
# qu'on ne le sait pas encore...
self.geo_restriction = False
self.ogc_services = True
self.extractable = True
# La restriction au territoire de compétence désactive toujours les services OGC
if self.geo_restriction:
self.ogc_services = False
# Quelques contrôles sur les fichiers de données téléversée ou à télécharger
filename = False
content_type = None
file_must_be_deleted = False # permet d'indiquer si les fichiers doivent être supprimés à la fin de la chaine de traitement
publish_raw_resource = True # permet d'indiquer si les ressources brutes sont publiées dans CKAN
if self.ftp_file:
filename = self.ftp_file.file.name
# Si la taille de fichier dépasse la limite autorisée,
# on traite les données en fonction du type détecté
if self.ftp_file.size > DOWNLOAD_SIZE_LIMIT:
extension = self.format_type.extension.lower()
if self.format_type.is_gis_format:
try:
gdalogr_obj = get_gdalogr_object(filename, extension)
except NotDataGISError:
# On essaye de traiter le jeux de données normalement, même si ça peut être long.
pass
else:
if gdalogr_obj.__class__.__name__ == 'GdalOpener':
s0 = str(self.ckan_id)
s1, s2, s3 = s0[:3], s0[3:6], s0[6:]
dir = os.path.join(CKAN_STORAGE_PATH, s1, s2)
os.makedirs(dir, mode=0o777, exist_ok=True)
shutil.copyfile(filename, os.path.join(dir, s3))
src = os.path.join(dir, s3)
dst = os.path.join(dir, filename.split('/')[-1])
try:
os.symlink(src, dst)
except FileNotFoundError as e:
logger.error(e)
else:
logger.debug(
'Created a symbolic link {dst} pointing to {src}.'
.format(dst=dst, src=src))
# if gdalogr_obj.__class__.__name__ == 'OgrOpener':
# On ne publie que le service OGC dans CKAN
publish_raw_resource = False
elif (self.up_file and file_extras):
# GDAL/OGR ne semble pas prendre de fichier en mémoire..
# ..à vérifier mais si c'est possible comment indiquer le vsi en préfixe du filename ?
super().save(*args, **kwargs)
kwargs['force_insert'] = False
filename = self.up_file.file.name
file_must_be_deleted = True
elif self.dl_url:
try:
directory, filename, content_type = download(
self.dl_url,
settings.MEDIA_ROOT,
max_size=DOWNLOAD_SIZE_LIMIT)
except SizeLimitExceededError as e:
l = len(str(e.max_size))
if l > 6:
m = '{0} mo'.format(Decimal(int(e.max_size) / 1024 / 1024))
elif l > 3:
m = '{0} ko'.format(Decimal(int(e.max_size) / 1024))
else:
m = '{0} octets'.format(int(e.max_size))
raise ValidationError(('La taille du fichier dépasse '
'la limite autorisée : {0}.').format(m),
code='dl_url')
except Exception as e:
if e.__class__.__name__ == 'HTTPError':
if e.response.status_code == 404:
msg = ('La ressource distante ne semble pas exister. '
"Assurez-vous que l'URL soit correcte.")
if e.response.status_code == 403:
msg = ("Vous n'avez pas l'autorisation pour "
'accéder à la ressource.')
if e.response.status_code == 401:
msg = ('Une authentification est nécessaire '
'pour accéder à la ressource.')
else:
msg = 'Le téléchargement du fichier a échoué.'
raise ValidationError(msg, code='dl_url')
file_must_be_deleted = True
# Synchronisation avec CKAN
# =========================
# La synchronisation doit s'effectuer avant la publication des
# éventuelles couches de données SIG car dans le cas des données
# de type « raster », nous utilisons le filestore de CKAN.
if synchronize and publish_raw_resource:
self.synchronize(content_type=content_type,
file_extras=file_extras,
filename=filename,
with_user=current_user)
elif synchronize and not publish_raw_resource:
url = reduce(urljoin, [
settings.CKAN_URL, 'dataset/',
str(self.dataset.ckan_id) + '/', 'resource/',
str(self.ckan_id) + '/', 'download/',
Path(self.ftp_file.name).name
])
self.synchronize(url=url, with_user=current_user)
# Détection des données SIG
# =========================
if filename:
# On vérifie s'il s'agit de données SIG, uniquement pour
# les extensions de fichier autorisées..
extension = self.format_type.extension.lower()
if self.format_type.is_gis_format:
# Si c'est le cas, on monte les données dans la base PostGIS dédiée
# et on déclare la couche au service OGC:WxS de l'organisation.
# Mais d'abord, on vérifie si la ressource contient
# déjà des « Layers », auquel cas il faudra vérifier si
# la table de données a changée.
existing_layers = {}
if not created:
existing_layers = dict(
(re.sub('^(\w+)_[a-z0-9]{7}$', '\g<1>', layer.name),
layer.name) for layer in self.get_layers())
try:
# C'est carrément moche mais c'est pour aller vite.
# Il faudrait factoriser tout ce bazar et créer
# un décorateur pour gérer le rool-back sur CKAN.
try:
gdalogr_obj = get_gdalogr_object(filename, extension)
except NotDataGISError:
tables = []
pass
else:
try:
self.format_type = ResourceFormats.objects.get(
extension=extension,
ckan_format=gdalogr_obj.format)
# except ResourceFormats.MultipleObjectsReturned:
# pass
except Exception:
pass
# ==========================
# Jeu de données vectorielle
# ==========================
if gdalogr_obj.__class__.__name__ == 'OgrOpener':
# On convertit les données vers PostGIS
try:
tables = ogr2postgis(
gdalogr_obj,
update=existing_layers,
epsg=self.crs and self.crs.auth_code
or None,
encoding=self.encoding)
except NotOGRError as e:
logger.warning(e)
file_must_be_deleted and remove_file(filename)
msg = (
"Le fichier reçu n'est pas reconnu "
'comme étant un jeu de données SIG correct.'
)
raise ValidationError(msg, code='__all__')
except DataDecodingError as e:
logger.warning(e)
file_must_be_deleted and remove_file(filename)
msg = (
'Impossible de décoder correctement les '
"données. Merci d'indiquer l'encodage "
'ci-dessous.')
raise ValidationError(msg, code='encoding')
except WrongDataError as e:
logger.warning(e)
file_must_be_deleted and remove_file(filename)
msg = (
'Votre ressource contient des données SIG que '
'nous ne parvenons pas à lire correctement. '
'Un ou plusieurs objets sont erronés.')
raise ValidationError(msg)
except NotFoundSrsError as e:
logger.warning(e)
file_must_be_deleted and remove_file(filename)
msg = (
'Votre ressource semble contenir des données SIG '
'mais nous ne parvenons pas à détecter le système '
'de coordonnées. Merci de sélectionner le code du '
'CRS dans la liste ci-dessous.')
raise ValidationError(msg, code='crs')
except NotSupportedSrsError as e:
logger.warning(e)
file_must_be_deleted and remove_file(filename)
msg = (
'Votre ressource semble contenir des données SIG '
'mais le système de coordonnées de celles-ci '
"n'est pas supporté par l'application.")
raise ValidationError(msg, code='__all__')
except ExceedsMaximumLayerNumberFixedError as e:
logger.warning(e)
file_must_be_deleted and remove_file(filename)
raise ValidationError(e.__str__(),
code='__all__')
else:
# Avant de créer des relations, l'objet doit exister
if created:
# S'il s'agit d'une création, alors on sauve l'objet.
super().save(*args, **kwargs)
kwargs['force_insert'] = False
# Ensuite, pour tous les jeux de données SIG trouvés,
# on crée le service ows à travers la création de `Layer`
try:
Layer = apps.get_model(
app_label='idgo_admin',
model_name='Layer')
for table in tables:
try:
Layer.objects.get(name=table['id'],
resource=self)
except Layer.DoesNotExist:
save_opts = {
'synchronize': synchronize
}
Layer.vector.create(
bbox=table['bbox'],
name=table['id'],
resource=self,
save_opts=save_opts)
except Exception as e:
logger.error(e)
file_must_be_deleted and remove_file(
filename)
for table in tables:
drop_table(table['id'])
raise e
# ==========================
# Jeu de données matricielle
# ==========================
if gdalogr_obj.__class__.__name__ == 'GdalOpener':
coverage = gdalogr_obj.get_coverage()
try:
tables = [
gdalinfo(
coverage,
update=existing_layers,
epsg=self.crs and self.crs.auth_code
or None)
]
except NotFoundSrsError as e:
logger.warning(e)
file_must_be_deleted and remove_file(filename)
msg = (
'Votre ressource semble contenir des données SIG '
'mais nous ne parvenons pas à détecter le système '
'de coordonnées. Merci de sélectionner le code du '
'CRS dans la liste ci-dessous.')
raise ValidationError(msg, code='crs')
except NotSupportedSrsError as e:
logger.warning(e)
file_must_be_deleted and remove_file(filename)
msg = (
'Votre ressource semble contenir des données SIG '
'mais le système de coordonnées de celles-ci '
"n'est pas supporté par l'application.")
raise ValidationError(msg, code='__all__')
else:
if created:
# S'il s'agit d'une création, alors on sauve l'objet.
super().save(*args, **kwargs)
kwargs['force_insert'] = False
# Super Crado Code
s0 = str(self.ckan_id)
s1, s2, s3 = s0[:3], s0[3:6], s0[6:]
dir = os.path.join(CKAN_STORAGE_PATH, s1, s2)
src = os.path.join(dir, s3)
dst = os.path.join(dir, filename.split('/')[-1])
try:
os.symlink(src, dst)
except FileExistsError as e:
logger.warning(e)
except FileNotFoundError as e:
logger.error(e)
else:
logger.debug(
'Created a symbolic link {dst} pointing to {src}.'
.format(dst=dst, src=src))
try:
Layer = apps.get_model(app_label='idgo_admin',
model_name='Layer')
for table in tables:
try:
Layer.objects.get(name=table['id'],
resource=self)
except Layer.DoesNotExist:
Layer.raster.create(bbox=table['bbox'],
name=table['id'],
resource=self)
except Exception as e:
logger.error(e)
file_must_be_deleted and remove_file(filename)
raise e
except Exception as e:
if created:
if current_user:
username = current_user.username
apikey = CkanHandler.get_user(username)['apikey']
with CkanUserHandler(apikey) as ckan:
ckan.delete_resource(str(self.ckan_id))
else:
CkanHandler.delete_resource(str(self.ckan_id))
for layer in self.get_layers():
layer.delete(current_user=current_user)
# Puis on « raise » l'erreur
raise e
# On met à jour les champs de la ressource
SupportedCrs = apps.get_model(app_label='idgo_admin',
model_name='SupportedCrs')
crs = [
SupportedCrs.objects.get(auth_name='EPSG',
auth_code=table['epsg'])
for table in tables
]
# On prend la première valeur (c'est moche)
self.crs = crs and crs[0] or None
# Si les données changent..
if existing_layers and \
previous.get_layers() != self.get_layers():
# on supprime les anciens `layers`..
for layer in previous.get_layers():
layer.delete()
####
if self.get_layers():
extent = self.get_layers().aggregate(
models.Extent('bbox')).get('bbox__extent')
if extent:
xmin, ymin = extent[0], extent[1]
xmax, ymax = extent[2], extent[3]
setattr(self, 'bbox', bounds_to_wkt(xmin, ymin, xmax, ymax))
else:
# Si la ressource n'est pas de type SIG, on passe les trois arguments
# qui concernent exclusivement ces dernières à « False ».
self.geo_restriction = False
self.ogc_services = False
self.extractable = False
super().save(*args, **kwargs)
# Puis dans tous les cas..
# on met à jour le statut des couches du service cartographique..
if not created:
self.update_enable_layers_status()
# on supprime les données téléversées ou téléchargées..
if file_must_be_deleted:
remove_file(filename)
# [Crado] on met à jour la ressource CKAN
if synchronize:
CkanHandler.update_resource(str(self.ckan_id),
extracting_service=str(
self.extractable))
for layer in self.get_layers():
layer.save(synchronize=synchronize)
self.dataset.date_modification = timezone.now().date()
self.dataset.save(current_user=None,
synchronize=True,
update_fields=['date_modification'])
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
organisation = self.resource.dataset.organisation
ws_name = organisation.slug
self.mra_info = {
'name': None,
'title': None,
'type': None,
'enabled': None,
'abstract': None,
'bbox': None,
'attributes': None,
'styles': {
'default': None,
'styles': None
}
}
try:
l = MRAHandler.get_layer(self.name)
except MraBaseError as e:
logger.error(e)
return
# Récupération des informations de couche vecteur
# ===============================================
if self.type == 'vector':
try:
ft = MRAHandler.get_featuretype(ws_name, 'public', self.name)
except MraBaseError:
return
if not l or not ft:
return
ll = ft['featureType']['latLonBoundingBox']
bbox = [[ll['miny'], ll['minx']], [ll['maxy'], ll['maxx']]]
attributes = [
item['name'] for item in ft['featureType']['attributes']
]
default_style_name = None
styles = []
if 'defaultStyle' in l:
default_style_name = l['defaultStyle']['name']
try:
sld = MRAHandler.get_style(l['defaultStyle']['name'])
except MraBaseError as e:
logger.error(e)
styles = {}
else:
styles = [{
'name':
'default',
'text':
'Style par défaut',
'url':
l['defaultStyle']['href'].replace('json', 'sld'),
'sld':
sld,
}]
if l.get('styles'):
for style in l.get('styles')['style']:
styles.append({
'name': style['name'],
'text': style['name'],
'url': style['href'].replace('json', 'sld'),
'sld': MRAHandler.get_style(style['name']),
})
# Récupération des informations de couche raster
# ==============================================
elif self.type == 'raster':
try:
c = MRAHandler.get_coverage(ws_name, self.name, self.name)
except MraBaseError:
return
if not l or not c:
return
ll = c['coverage']['latLonBoundingBox']
bbox = [[ll['miny'], ll['minx']], [ll['maxy'], ll['maxx']]]
attributes = []
default_style_name = None
styles = []
# Puis..
self.mra_info = {
'name': l['name'],
'title': l['title'],
'type': l['type'],
'enabled': l['enabled'],
'abstract': l['abstract'],
'bbox': bbox,
'attributes': attributes,
'styles': {
'default': default_style_name,
'styles': styles
}
}
