feat(nestjs): migrate to NestJS

packages/server/src/modules/Warehouses/Items/GetItemWarehouses.ts

@@ -0,0 +1,44 @@
+import { GetItemWarehouseTransformer } from './GettItemWarehouseTransformer';
+import { Inject, Injectable } from '@nestjs/common';
+import { ItemWarehouseQuantity } from '../models/ItemWarehouseQuantity';
+import { Item } from '@/modules/Items/models/Item';
+import { TransformerInjectable } from '@/modules/Transformer/TransformerInjectable.service';
+import { TenantModelProxy } from '@/modules/System/models/TenantBaseModel';
+
+@Injectable()
+export class GetItemWarehouses {
+  constructor(
+    @Inject(ItemWarehouseQuantity.name)
+    private readonly itemWarehouseQuantityModel: TenantModelProxy<
+      typeof ItemWarehouseQuantity
+    >,
+
+    @Inject(Item.name)
+    private readonly itemModel: TenantModelProxy<typeof Item>,
+    private readonly transformer: TransformerInjectable,
+  ) {}
+
+  /**
+   * Retrieves the item warehouses.
+   * @param {number} itemId
+   * @returns
+   */
+  public getItemWarehouses = async (itemId: number) => {
+    // Retrieves specific item or throw not found service error.
+    const item = await this.itemModel()
+      .query()
+      .findById(itemId)
+      .throwIfNotFound();
+
+    const itemWarehouses = await this.itemWarehouseQuantityModel()
+      .query()
+      .where('itemId', itemId)
+      .withGraphFetched('warehouse');
+
+    // Retrieves the transformed items warehouses.
+    return this.transformer.transform(
+      itemWarehouses,
+      new GetItemWarehouseTransformer(),
+    );
+  };
+}

packages/server/src/modules/Warehouses/Items/GettItemWarehouseTransformer.ts

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+import { Transformer } from '@/modules/Transformer/Transformer';
+import { Item } from '@/modules/Items/models/Item';
+
+export class GetItemWarehouseTransformer extends Transformer {
+  /**
+   * Include these attributes to sale invoice object.
+   * @returns {Array}
+   */
+  public includeAttributes = (): string[] => {
+    return [
+      'warehouseId',
+      'warehouseName',
+      'warehouseCode',
+      'quantityOnHandFormatted',
+    ];
+  };
+
+  /**
+   * Exclude the warehouse attribute.
+   * @returns {Array}
+   */
+  public excludeAttributes = (): string[] => {
+    return ['warehouse'];
+  };
+
+  /**
+   * Formatted sell price.
+   * @param item
+   * @returns {string}
+   */
+  public quantityOnHandFormatted(item: Item): string {
+    return this.formatNumber(item.quantityOnHand, { money: false });
+  }
+
+  public warehouseCode(item: Item): string {
+    return item.warehouse.code;
+  }
+
+  public warehouseName(item: Item): string {
+    return item.warehouse.name;
+  }
+
+  public warehouseId(item: Item): number {
+    return item.warehouse.id;
+  }
+}