feat(backend): consolidate queue logic for scheduling

backend/database/models/service.py

@@ -1,15 +1,10 @@
-from ..connection import DatabaseConnection
+from dataclasses import dataclass
+from datetime import date
+from ._base import BaseModel
 
-class Service:
-    def __init__(self, service_type_id: int, service_date: str):
-        self.service_type_id = service_type_id
-        self.service_date = service_date
 
-    def save(self, db: DatabaseConnection):
-        query = "INSERT INTO Services (ServiceTypeId, ServiceDate) VALUES (?, ?)"
-        db.execute_query(query, (self.service_type_id, self.service_date))
-
-    @classmethod
-    def get_all(cls, db: DatabaseConnection):
-        query = "SELECT * FROM Services"
-        return db.execute_query_with_return(query)
+@dataclass()
+class Service(BaseModel):
+    ServiceId: int
+    ServiceTypeId: int
+    ServiceDate: date