implement currency and report

transportmanager/server/models/currency.py

@@ -0,0 +1,53 @@
+from datetime import datetime
+from database import get_connection, is_postgres
+
+class Currency:
+    def __init__(self):
+        self.ph = "%s" if is_postgres() else "?"
+
+    def currency_to_dict(self, row):
+        currency = {
+                'id': row[0],
+                'user_id': row[1],
+                'name': row[2],
+                'value': row[3],
+                'created_at': row[4]
+            }
+        return currency
+    
+    def insert_currency(self, access_data):
+        created_at = datetime.now().isoformat()
+        with get_connection() as conn:
+            cursor = conn.cursor()
+            returning = "RETURNING id" if is_postgres() else ""
+            query = f"""
+                INSERT INTO currency (
+                    user_id, name, value, created_at
+                ) VALUES ({self.ph}, {self.ph}, {self.ph}, {self.ph}) {returning}
+            """
+            cursor.execute(
+                query, 
+                (
+                    access_data['user_id'], 
+                    access_data['name'], 
+                    access_data['value'], 
+                    created_at
+                )
+            )
+            inserted_id = None
+            if is_postgres():
+                inserted_id = cursor.fetchone()[0]
+            else:
+                inserted_id = cursor.lastrowid
+            if hasattr(conn, "commit"):
+                conn.commit()
+            return inserted_id
+        
+    def get_currency_user_id(self, user_id):
+        with get_connection() as conn:
+            cursor = conn.cursor()
+            cursor.execute(f"SELECT * FROM currency WHERE user_id = {self.ph}", (user_id,))
+            row = cursor.fetchone()
+            return self.currency_to_dict(row) if row else None
+        
+