feat(backend): add the db connection

backend/database/models/__init__.py

@@ -0,0 +1,6 @@
+# database/models/__init__.py
+from .classification import Classification
+from .member import Member
+from .service_type import ServiceType
+from .service import Service
+from .service_availability import ServiceAvailability

backend/database/models/classification.py

@@ -0,0 +1,14 @@
+from ..connection import DatabaseConnection
+
+class Classification:
+    def __init__(self, classification_name: str):
+        self.classification_name = classification_name
+
+    def save(self, db: DatabaseConnection):
+        query = "INSERT INTO Classifications (ClassificationName) VALUES (?)"
+        db.execute_query(query, (self.classification_name,))
+
+    @classmethod
+    def get_all(cls, db: DatabaseConnection):
+        query = "SELECT * FROM Classifications"
+        return db.execute_query_with_return(query)

backend/database/models/member.py

@@ -0,0 +1,19 @@
+from ..connection import DatabaseConnection
+
+class Member:
+    def __init__(self, first_name: str, last_name: str, email: str, phone_number: str, classification_id: int, notes: str = None):
+        self.first_name = first_name
+        self.last_name = last_name
+        self.email = email
+        self.phone_number = phone_number
+        self.classification_id = classification_id
+        self.notes = notes
+
+    def save(self, db: DatabaseConnection):
+        query = "INSERT INTO Members (FirstName, LastName, Email, PhoneNumber, ClassificationId, Notes) VALUES (?, ?, ?, ?, ?, ?)"
+        db.execute_query(query, (self.first_name, self.last_name, self.email, self.phone_number, self.classification_id, self.notes))
+
+    @classmethod
+    def get_all(cls, db: DatabaseConnection):
+        query = "SELECT * FROM Members"
+        return db.execute_query_with_return(query)

backend/database/models/service.py

@@ -0,0 +1,15 @@
+from ..connection import DatabaseConnection
+
+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)

backend/database/models/service_availability.py

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+from ..connection import DatabaseConnection
+
+class ServiceAvailability:
+    def __init__(self, member_id: int, service_type_id: int):
+        self.member_id = member_id
+        self.service_type_id = service_type_id
+
+    def save(self, db: DatabaseConnection):
+        query = "INSERT INTO ServiceAvailability (MemberId, ServiceTypeId) VALUES (?, ?)"
+        db.execute_query(query, (self.member_id, self.service_type_id))
+
+    @classmethod
+    def get_all(cls, db: DatabaseConnection):
+        query = "SELECT * FROM ServiceAvailability"
+        return db.execute_query_with_return(query)

backend/database/models/service_type.py

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+from ..connection import DatabaseConnection
+
+class ServiceType:
+    def __init__(self, type_name: str):
+        self.type_name = type_name
+
+    def save(self, db: DatabaseConnection):
+        query = "INSERT INTO ServiceTypes (TypeName) VALUES (?)"
+        db.execute_query(query, (self.type_name,))
+
+    @classmethod
+    def get_all(cls, db: DatabaseConnection):
+        query = "SELECT * FROM ServiceTypes"
+        return db.execute_query_with_return(query)