- add references, collections and identifiers to dataset model

- npm updates

app/Models/Collection.ts

@@ -0,0 +1,45 @@
+import { column, BaseModel, SnakeCaseNamingStrategy, manyToMany, ManyToMany } from '@ioc:Adonis/Lucid/Orm';
+import Dataset from './Dataset';
+
+export default class Collection extends BaseModel {
+    public static namingStrategy = new SnakeCaseNamingStrategy();
+    public static primaryKey = 'id';
+    public static table = 'collections';
+    public static fillable: string[] = ['name', 'number', 'role_id'];
+
+    @column({
+        isPrimary: true,
+    })
+    public id: number;
+
+    @column({})
+    public document_id: number;
+
+    @column({})
+    public role_id?: number;
+
+    @column({})
+    public number?: string;
+
+    @column({})
+    public name: string;
+
+    @column({})
+    public oai_subset?: string;
+
+    @column({})
+    public parent_id?: number;
+
+    @column({})
+    public visible: boolean;
+
+    @column({})
+    public visible_publish: boolean;
+
+    @manyToMany(() => Dataset, {
+        pivotForeignKey: 'collection_id',
+        pivotRelatedForeignKey: 'document_id',
+        pivotTable: 'link_documents_collections',
+    })
+    public datasets: ManyToMany<typeof Dataset>;
+}

app/Models/Dataset.ts

@@ -23,6 +23,8 @@ import Subject from './Subject';
 import File from './File';
 import Coverage from './Coverage';
 import DatasetReference from './DatasetReference'; 
+import Collection from './Collection';
+import DatasetIdentifier from './DatasetIdentifier';
 
 export default class Dataset extends BaseModel {
     public static namingStrategy = new SnakeCaseNamingStrategy();
@@ -144,6 +146,23 @@ export default class Dataset extends BaseModel {
     })
     public references: HasMany<typeof DatasetReference>;
 
+    // public function collections()
+    // {
+    //     return $this
+    //         ->belongsToMany(Collection::class, 'link_documents_collections', 'document_id', 'collection_id');
+    // }
+    @manyToMany(() => Collection, {
+        pivotForeignKey: 'document_id',
+        pivotRelatedForeignKey: 'collection_id',
+        pivotTable: 'link_documents_collections',
+    })
+    public collections: ManyToMany<typeof Collection>;
+
+    @hasOne(() => DatasetIdentifier, {
+        foreignKey: 'document_id',
+    })
+    public identifier: HasOne<typeof DatasetIdentifier>;
+
 
     @computed({
         serializeAs: 'main_title',

app/Models/DatasetIdentifier.ts

@@ -0,0 +1,40 @@
+import { column, BaseModel, SnakeCaseNamingStrategy, belongsTo, BelongsTo } from '@ioc:Adonis/Lucid/Orm';
+import { DateTime } from 'luxon';
+import Dataset from './Dataset';
+
+export default class DatasetIdentifier extends BaseModel {
+    public static namingStrategy = new SnakeCaseNamingStrategy();
+    public static primaryKey = 'id';
+    public static table = 'dataset_identifiers';
+    public static fillable: string[] = ['value', 'label', 'type', 'relation'];
+
+    @column({
+        isPrimary: true,
+    })
+    public id: number;
+
+    @column({})
+    public document_id: number; 
+
+    @column({})
+    public type: string;
+
+    @column({})
+    public value: string;
+
+    @column.dateTime({
+        autoCreate: true,
+    })
+    public created_at?: DateTime;
+
+    @column.dateTime({
+        autoCreate: true,
+        autoUpdate: true,
+    })
+    public updated_at?: DateTime;
+
+    @belongsTo(() => Dataset, {
+        foreignKey: 'document_id',
+    })
+    public dataset: BelongsTo<typeof Dataset>;
+}