Class for connecting with the database. More...

Inheritance diagram for Lib.rave_dom_db.rave_db:

Public Member Functions
	__init__ (self, engine_or_url)
	get_connection (self)
	psql_invalidate (self, dbapi_conn, connection_rec, exception)
	migrate_to_alembic (self)
	create_alembic (self)
	create (self)
	drop_alembic (self)
	drop (self)
	add (self, obj)
	Adds an object to the associated table.
	merge (self, obj)
	get_session (self)
	get_observations_in_bbox (self, ullon, ullat, lrlon, lrlat, startdt=None, enddt=None)
	get_observations_in_interval (self, startdt, enddt, stations=[])
	delete_observations_in_interval (self, startdt, enddt)
	get_station (self, stationid)
	get_stations_in_bbox (self, ullon, ullat, lrlon, lrlat)
	delete_all_stations (self)
	get_gra_coefficient (self, dt, identifier=None)
	get_newest_gra_coefficient (self, dt, dtmax=None, identifier=None)
	Return the most recent gra coefficient since dt.
	get_grapoints (self, dt, edt=None, identifier="")
	delete_grapoints (self, dt, edt=None, identifier="")
	purge_grapoints (self)
	get_latest_melting_layer (self, nod, hours=None, ct=datetime.datetime.now(datetime.timezone.utc))
	remove_old_melting_layers (self, ct=None)

Public Attributes
	psql_invalidate
	Session = sessionmaker(bind=self._engine)

Protected Attributes
	_url = None
	_engine = engine.create_engine(engine_or_url, echo=False)

Detailed Description

Class for connecting with the database.

Member Function Documentation

Lib.rave_dom_db.rave_db.add	(		self,
			obj )

Adds an object to the associated table.

Lib.rave_dom_db.rave_db.get_connection ( self )

get a context managed connection to the database

Lib.rave_dom_db.rave_db.get_newest_gra_coefficient	(	self,
		dt,
		dtmax = None,
		identifier = None )

Return the most recent gra coefficient since dt.

Parameters

dt	From time when to search for coefficients

The documentation for this class was generated from the following file: