feat(backend): SearchByAdmins service

backend/src/data/content/learning-path-repository.ts

@@ -1,21 +1,35 @@
 import { DwengoEntityRepository } from '../dwengo-entity-repository.js';
 import { LearningPath } from '../../entities/content/learning-path.entity.js';
 import { Language } from '@dwengo-1/common/util/language';
+import { MatchMode } from '@dwengo-1/common/util/match-mode';
 import { LearningPathNode } from '../../entities/content/learning-path-node.entity.js';
 import { RequiredEntityData } from '@mikro-orm/core';
 import { LearningPathTransition } from '../../entities/content/learning-path-transition.entity.js';
 import { EntityAlreadyExistsException } from '../../exceptions/entity-already-exists-exception.js';
+import { Teacher } from '../../entities/users/teacher.entity';
 
 export class LearningPathRepository extends DwengoEntityRepository<LearningPath> {
     public async findByHruidAndLanguage(hruid: string, language: Language): Promise<LearningPath | null> {
         return this.findOne({ hruid: hruid, language: language }, { populate: ['nodes', 'nodes.transitions'] });
     }
 
+    public async findByAdmins(admins: Teacher[], language: Language, _matchMode?: MatchMode): Promise<LearningPath[]> {
+        return this.findAll({
+            where: {
+                language: language,
+                admins: {
+                    $in: admins,
+                },
+            },
+            populate: ['nodes', 'nodes.transitions'],
+        });
+    }
+
     /**
      * Returns all learning paths which have the given language and whose title OR description contains the
      * query string.
      *
-     * @param query The query string we want to seach for in the title or description.
+     * @param query The query string we want to search for in the title or description.
      * @param language The language of the learning paths we want to find.
      */
     public async findByQueryStringAndLanguage(query: string, language: Language): Promise<LearningPath[]> {