def _get_mapset(lock, conn, data):
"""Return the current mapset
:param lock: A multiprocessing.Lock instance
:param conn: A multiprocessing.Pipe instance used to send True or False
:param data: The mapset as list entry 1 [function_id]
:returns: Name of the current mapset
"""
mapset = libgis.G_mapset()
conn.send(mapset)
def _get_database_name(lock, conn, data):
"""Return the temporal database name of a specific mapset
:param lock: A multiprocessing.Lock instance
:param conn: A multiprocessing.Pipe instance used to send True or False
:param data: The mapset as list entry 1 [function_id, mapset]
:returns: Name of the database or None if no temporal database present
"""
mapset = data[1]
if not mapset:
mapset = libgis.G_mapset()
dbstring = libtgis.tgis_get_mapset_database_name(mapset)
if dbstring:
# We substitute GRASS variables if they are located in the database string
# This behavior is in conjunction with db.connect
dbstring = dbstring.replace("$GISDBASE", libgis.G_gisdbase())
dbstring = dbstring.replace("$LOCATION_NAME", libgis.G_location())
dbstring = dbstring.replace("$MAPSET", libgis.G_mapset())
conn.send(dbstring)
def _get_driver_name(lock, conn, data):
"""Return the temporal database driver of a specific mapset
:param lock: A multiprocessing.Lock instance
:param conn: A multiprocessing.Pipe instance used to send True or False
:param data: The mapset as list entry 1 [function_id, mapset]
:returns: Name of the driver or None if no temporal database present
"""
mapset = data[1]
if not mapset:
mapset = libgis.G_mapset()
drstring = libtgis.tgis_get_mapset_driver_name(mapset)
conn.send(drstring)
def _available_mapsets(lock, conn, data):
"""Return all available mapsets the user can access as a list of strings
:param lock: A multiprocessing.Lock instance
:param conn: A multiprocessing.Pipe instance used to send True or False
:param data: The list of data entries [function_id]
:returns: Names of available mapsets as list of strings
"""
mapsets = libgis.G_get_available_mapsets()
count = 0
mapset_list = []
while mapsets[count]:
char_list = ""
mapset = mapsets[count]
if libgis.G__mapset_permissions(mapset) > 0:
count += 1
c = 0
while mapset[c] != "\x00":
char_list += mapset[c]
c += 1
mapset_list.append(char_list)
# We need to sort the mapset list, but the first one should be
# the current mapset
current_mapset = libgis.G_mapset()
mapset_list.remove(current_mapset)
mapset_list.sort()
mapset_list.reverse()
mapset_list.append(current_mapset)
mapset_list.reverse()
conn.send(mapset_list)
def wrapper(self, *args, **kargs):
if self.mapset == libgis.G_mapset().decode():
return method(self, *args, **kargs)
else:
raise GrassError(_("Map <{}> not found in current mapset").format(
self.name))