Revert "Borrado de archivos extra"

This reverts commit 06feae543a.

lib/database_operations.py

@@ -0,0 +1,47 @@
+import psycopg2
+from psycopg2.extras import DictCursor
+
+def connect_to_database(dbname="sgi", user="postgres", password="h3rcul3s#$", host="200.13.89.8", port="5432"):
+    """
+    Establece una conexión a la base de datos y la retorna.
+    """
+    try:
+        connection = psycopg2.connect(
+            dbname=dbname,
+            user=user,
+            password=password,
+            host=host,
+            port=port
+        )
+        return connection
+    except psycopg2.Error as e:
+        print(f"No se pudo conectar a la base de datos: {e}")
+        exit()
+
+def query_all(sql):
+    with connect_to_database() as conn:
+        with conn.cursor(cursor_factory=DictCursor) as cur:
+            cur.execute(sql)
+            return cur.fetchall()
+
+def query_single(sql):
+    with connect_to_database() as conn:
+        with conn.cursor(cursor_factory=DictCursor) as cur:
+            cur.execute(sql)
+            return cur.fetchone()  # Returns a dictionary-like object
+
+def execute_query(sql):
+    with connect_to_database() as conn:
+        with conn.cursor() as cur:
+            cur.execute(sql)
+            conn.commit()  # Commit to save the insert operation
+
+def log(message, status, error_message=None, clave=None, no_insertadas=[]):
+    with connect_to_database(dbname="adcfi", user="postgres", password="Ultr4p0d3r0s0##", host="200.13.89.42", port="5432") as conn:
+        with conn.cursor() as cur:
+            cur.execute(f"""
+                        INSERT INTO calificaciones.calificaciones_log (response_status, error_message, user_ip, additional_info)
+                        VALUES ({status}, {f"'{error_message}'" if error_message else 'NULL'}, '200.13.89.42', '{{"clave": "{clave}", "message": "{message}", "no insertadas": "[{', '.join(no_insertada for no_insertada in no_insertadas)}]"}}')
+                        """)
+            conn.commit()
+