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Improve model synchronization in sequelize.js by temporarily removing associations to prevent automatic foreign key creation. Add logging for association management during the sync process, ensuring clarity in model handling.

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Torsten Schulz (local)
2025-12-18 16:36:26 +01:00
parent a0206dc8cb
commit 7beed235d7
1 changed files with 20 additions and 2 deletions
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22
backend/utils/sequelize.js
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@@ -476,10 +476,28 @@ const syncModelsAlways = async (models) => {
}
try {
// constraints: false verhindert, dass Sequelize Foreign Keys automatisch erstellt
// Foreign Keys sollten nur über Migrations verwaltet werden
// constraints: false wird von Sequelize ignoriert wenn Associations vorhanden sind
// Wir müssen die Associations temporär entfernen, um Foreign Keys zu verhindern
const originalAssociations = model.associations ? { ...model.associations } : {};
const associationKeys = Object.keys(originalAssociations);
// Entferne temporär alle Associations, damit Sequelize keine Foreign Keys erstellt
if (associationKeys.length > 0) {
console.log(` ⚠️ Temporarily removing ${associationKeys.length} associations from ${model.name} to prevent FK creation`);
// Lösche alle Associations temporär
for (const key of associationKeys) {
delete model.associations[key];
}
}
console.log(` 🔄 Syncing model ${model.name} with constraints: false`);
await model.sync({ alter: true, force: false, constraints: false });
// Stelle die Associations wieder her
if (associationKeys.length > 0) {
console.log(` ✅ Restoring ${associationKeys.length} associations for ${model.name}`);
model.associations = originalAssociations;
}
} finally {
// Restore VIRTUAL fields after sync
for (const [key, attr] of Object.entries(virtualFields)) {