chore: improve validation for missing metadata

related: #3180
mikro-orm · Jun 3, 2022 · eb03759 · eb03759
1 parent 74b5488
commit eb03759
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/packages/core/src/entity/ArrayCollection.ts b/packages/core/src/entity/ArrayCollection.ts
@@ -3,6 +3,7 @@ import type { AnyEntity, EntityDTO, EntityProperty, IPrimaryKey, Primary } from
 import { Reference } from './Reference';
 import { wrap } from './wrap';
 import { ReferenceType } from '../enums';
+import { MetadataError } from '../errors';
 import { Utils } from '../utils/Utils';
 
 export class ArrayCollection<T, O> {
@@ -166,7 +167,13 @@ export class ArrayCollection<T, O> {
    */
   get property(): EntityProperty<T> {
     if (!this._property) {
-      const meta = this.owner.__meta!;
+      const meta = this.owner.__meta;
+
+      /* istanbul ignore if */
+      if (!meta) {
+        throw MetadataError.missingMetadata(this.owner.constructor.name);
+      }
+
       const field = Object.keys(meta.properties).find(k => this.owner[k] === this);
       this._property = meta.properties[field!];
     }