add tenant logic

backend/app/db/cruddb/__init__.py

@@ -1,3 +1,4 @@
 from app.db.cruddb.dbuser import userService
 from app.db.cruddb.dbdomain import domainService
-from app.db.cruddb.dbapp import appService
+from app.db.cruddb.dbapp import appService
+from app.db.cruddb.dbtenant import tenantService

backend/app/db/cruddb/dbtenant.py

@@ -0,0 +1,13 @@
+from app.db.cruddb.crudbase import crudbase
+from app.db import models, schemas
+from sqlalchemy.orm import Session
+
+class dbtenant(crudbase):
+    def __init__(self):
+        super().__init__(model=models.Tenant)
+
+    def get_tenant(sefl,db:Session,tenantid: str):
+        tenant = db.execute(super().get_by_conditions({"tenantid":tenantid})).scalars().first()
+        return tenant
+
+tenantService = dbtenant()