janware/jw-python
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Code Releases Activity

db.Session: Add

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Add database session API to db. This is a breaking change, because
from this commit on, a session object has to be passed to every
query.

This commit also removes any reference to Cmds / App objects. An
instantiated database object can be worked with outside of an App.

Signed-off-by: Jan Lindemann <jan@janware.com>
This commit is contained in:
Jan Lindemann 2025-03-10 18:44:39 +01:00
commit 495cebd769
5 changed files with 56 additions and 31 deletions
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11
tools/python/jwutils/db/query/Query.py
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@ -8,6 +8,7 @@ from jwutils.log import *
from jwutils.misc import load_classes
from jwutils.Cmds import Cmds
from jwutils.db.DataBase import DataBase
from jwutils.db.Session import Session
from jwutils.db.query.QueryResult import QueryResult
#from jwutils.db.query.Queries import Queries
@ -19,7 +20,7 @@ class Query(abc.ABC): # export
# -- pure virtuals
@abc.abstractmethod
def _run(self, *args, **kwargs) -> QueryResult:
def _run(self, session: Session, *args, **kwargs) -> QueryResult:
raise Exception('Called pure virtual _run()')
@abc.abstractmethod
@ -40,8 +41,8 @@ class Query(abc.ABC): # export
def _add(self, query_name: str, location: str, func: Any):
return self.__parent.add(self, query_name, location, func)
def run(self, *args, **kwargs) -> QueryResult:
return self._run(*args, **kwargs)
def run(self, session: Session, *args, **kwargs) -> QueryResult:
return self._run(session, *args, **kwargs)
@property
def parent(self):
@ -55,10 +56,6 @@ class Query(abc.ABC): # export
def schema(self):
return self.__parent.db.schema
@property
def app(self) -> Cmds:
return self.__parent.app
@property
def column_names(self) -> list[str]:
return self._column_names()