def check_layer_is_geopackage(layer: QgsMapLayer) -> Tuple[bool, str]:
if not layer:
return False, 'La couche est invalide'
testing = os.environ.get('TESTING_MERCICOR', '')
if testing == 'True':
return True, ''
uri = QgsProviderRegistry.instance().decodeUri('ogr', layer.source())
if not uri['path'].lower().endswith('.gpkg') or not uri['layerName']:
message = (
'La couche doit être le geopackage de la zone d\'étude et non pas {}'
.format(layer.source()))
return False, message
return True, ''
def layer_name_source(layer: QgsMapLayer) -> Tuple[str, str]:
"""
Returns the name and the source path of the layer.
:param layer: the layer from which to extract name and source.
:type layer: QgsMapLayer.
:return: the layer name and source.
:rtype: tuple of two strings.
Examples:
"""
return layer.name(), layer.source()
def getConnectionParameterFromDbLayer(layer: QgsMapLayer) -> Dict[str,str]:
'''
Get connection parameters
from the layer datasource
'''
connectionParams = None
if layer.providerType() == 'postgres':
dbType = 'postgis'
else:
dbType = 'spatialite'
src = layer.source()
try:
uri = QgsDataSourceUri(src)
except:
uri = QgsDataSourceURI(src)
# TODO Use immutable namedtuple
connectionParams = {
'service' : uri.service(),
'dbname' : uri.database(),
'host' : uri.host(),
'port': uri.port(),
'user' : uri.username(),
'password': uri.password(),
'sslmode' : uri.sslMode(),
'key': uri.keyColumn(),
'estimatedmetadata' : str(uri.useEstimatedMetadata()),
'checkPrimaryKeyUnicity' : '',
'srid' : uri.srid(),
'type': uri.wkbType(),
'schema': uri.schema(),
'table' : uri.table(),
'geocol' : uri.geometryColumn(),
'sql' : uri.sql(),
'dbType': dbType
}
return connectionParams
