From 9d23a03bc28181b4f5ccd3fc160f3b0a473abaa5 Mon Sep 17 00:00:00 2001
From: Louis Mazin <louismazindev@gmail.com>
Date: Sun, 20 Sep 2026 01:10:40 +0200
Subject: [PATCH] test encoooore

---
 .../migrations/0002_fix_user_foreign_key.py   | 125 ++++++++++--------
 1 file changed, 70 insertions(+), 55 deletions(-)

diff --git a/backend/time_tracking/migrations/0002_fix_user_foreign_key.py b/backend/time_tracking/migrations/0002_fix_user_foreign_key.py
index f0b60df..68882e8 100644
--- a/backend/time_tracking/migrations/0002_fix_user_foreign_key.py
+++ b/backend/time_tracking/migrations/0002_fix_user_foreign_key.py
@@ -2,76 +2,91 @@ from django.db import migrations
 
 
 def fix_user_foreign_key(apps, schema_editor):
-    with schema_editor.connection.cursor() as cursor:
-        # Récupère le vrai nom de la FK actuellement présente
+    connection = schema_editor.connection
+
+    with connection.cursor() as cursor:
+        # Récupère toutes les contraintes de time_tracking_timeentry
         cursor.execute("""
-            SELECT CONSTRAINT_NAME
+            SELECT
+                CONSTRAINT_NAME,
+                COLUMN_NAME,
+                REFERENCED_TABLE_NAME,
+                REFERENCED_COLUMN_NAME
             FROM information_schema.KEY_COLUMN_USAGE
             WHERE TABLE_SCHEMA = DATABASE()
               AND TABLE_NAME = 'time_tracking_timeentry'
               AND COLUMN_NAME = 'user_id'
-              AND REFERENCED_TABLE_NAME = 'auth_user'
+        """)
+
+        constraints = cursor.fetchall()
+
+        print("DEBUG FK FOUND:", constraints)
+
+        old_constraint = None
+
+        for (
+            constraint_name,
+            column_name,
+            referenced_table,
+            referenced_column,
+        ) in constraints:
+            if referenced_table:
+                old_constraint = constraint_name
+
+                print(
+                    "DEBUG USER FK:",
+                    constraint_name,
+                    "->",
+                    referenced_table,
+                    referenced_column,
+                )
+
+                break
+
+        if old_constraint:
+            print(
+                f"Suppression de l'ancienne FK : {old_constraint}"
+            )
+
+            cursor.execute(
+                f"""
+                ALTER TABLE `time_tracking_timeentry`
+                DROP FOREIGN KEY `{old_constraint}`
+                """
+            )
+
+        # Vérifie si la bonne FK existe déjà
+        cursor.execute("""
+            SELECT
+                CONSTRAINT_NAME
+            FROM information_schema.KEY_COLUMN_USAGE
+            WHERE TABLE_SCHEMA = DATABASE()
+              AND TABLE_NAME = 'time_tracking_timeentry'
+              AND COLUMN_NAME = 'user_id'
+              AND REFERENCED_TABLE_NAME = 'users_user'
               AND REFERENCED_COLUMN_NAME = 'id'
         """)
 
-        row = cursor.fetchone()
+        correct_constraint = cursor.fetchone()
 
-        if not row:
-            # La FK vers auth_user n'existe déjà plus.
-            # On vérifie simplement si la bonne FK existe.
-            cursor.execute("""
-                SELECT CONSTRAINT_NAME
-                FROM information_schema.KEY_COLUMN_USAGE
-                WHERE TABLE_SCHEMA = DATABASE()
-                  AND TABLE_NAME = 'time_tracking_timeentry'
-                  AND COLUMN_NAME = 'user_id'
-                  AND REFERENCED_TABLE_NAME = 'users_user'
-                  AND REFERENCED_COLUMN_NAME = 'id'
-            """)
-
-            if cursor.fetchone():
-                return
-
-            raise RuntimeError(
-                "Impossible de trouver la FK de time_tracking_timeentry.user_id"
+        if correct_constraint:
+            print(
+                "La FK vers users_user existe déjà :",
+                correct_constraint[0],
             )
+            return
 
-        old_constraint = row[0]
+        print("Création de la FK vers users_user")
 
-        # Supprime la FK actuelle
-        cursor.execute(
-            f"""
-            ALTER TABLE time_tracking_timeentry
-            DROP FOREIGN KEY `{old_constraint}`
-            """
-        )
-
-        # Crée la FK correcte vers users_user
         cursor.execute("""
-            ALTER TABLE time_tracking_timeentry
-            ADD CONSTRAINT time_tracking_timeentry_user_id_users_user_fk
-            FOREIGN KEY (user_id)
-            REFERENCES users_user (id)
+            ALTER TABLE `time_tracking_timeentry`
+            ADD CONSTRAINT `time_tracking_timeentry_user_id_users_user_fk`
+            FOREIGN KEY (`user_id`)
+            REFERENCES `users_user` (`id`)
             ON DELETE CASCADE
         """)
 
-
-def reverse_user_foreign_key(apps, schema_editor):
-    with schema_editor.connection.cursor() as cursor:
-        # Supprime la FK users_user
-        cursor.execute("""
-            ALTER TABLE time_tracking_timeentry
-            DROP FOREIGN KEY time_tracking_timeentry_user_id_users_user_fk
-        """)
-
-        # Recrée la FK vers auth_user
-        cursor.execute("""
-            ALTER TABLE time_tracking_timeentry
-            ADD CONSTRAINT time_tracking_timeentry_user_id_auth_user_fk
-            FOREIGN KEY (user_id)
-            REFERENCES auth_user (id)
-            ON DELETE CASCADE
-        """)
+        print("FK corrigée avec succès.")
 
 
 class Migration(migrations.Migration):
@@ -83,6 +98,6 @@ class Migration(migrations.Migration):
     operations = [
         migrations.RunPython(
             fix_user_foreign_key,
-            reverse_user_foreign_key,
+            migrations.RunPython.noop,
         ),
     ]
\ No newline at end of file