feat(nestjs): migrate to NestJS

packages/server/src/modules/InventoryAdjutments/models/InventoryAdjustment.ts

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+import { Model } from 'objection';
+import { InventoryAdjustmentEntry } from './InventoryAdjustmentEntry';
+import { TenantBaseModel } from '@/modules/System/models/TenantBaseModel';
+
+export class InventoryAdjustment extends TenantBaseModel {
+  public readonly date!: string;
+  public readonly type!: string;
+  public readonly adjustmentAccountId!: number;
+  public readonly reason?: string;
+  public readonly referenceNo!: string;
+  public readonly description?: string;
+  public readonly userId!: number;
+  public readonly publishedAt?: string;
+
+  public readonly branchId!: number;
+  public readonly warehouseId!: number;
+
+  public readonly createdAt!: Date | string;
+
+  public readonly entries: InventoryAdjustmentEntry[];
+
+  /**
+   * Table name
+   */
+  static get tableName() {
+    return 'inventory_adjustments';
+  }
+
+  /**
+   * Timestamps columns.
+   */
+  get timestamps(): Array<string> {
+    return ['created_at'];
+  }
+
+  /**
+   * Virtual attributes.
+   */
+  static get virtualAttributes(): Array<string> {
+    return ['formattedType', 'inventoryDirection', 'isPublished'];
+  }
+
+  /**
+   * Retrieve formatted adjustment type.
+   */
+  get formattedType(): string {
+    return InventoryAdjustment.getFormattedType(this.type);
+  }
+
+  /**
+   * Retrieve formatted reference type.
+   */
+  get inventoryDirection(): string {
+    return InventoryAdjustment.getInventoryDirection(this.type);
+  }
+
+  /**
+   * Detarmines whether the adjustment is published.
+   * @return {boolean}
+   */
+  get isPublished(): boolean {
+    return !!this.publishedAt;
+  }
+
+  static getInventoryDirection(type) {
+    const directions = {
+      increment: 'IN',
+      decrement: 'OUT',
+    };
+    return directions[type] || '';
+  }
+
+  /**
+   * Retrieve the formatted adjustment type of the given type.
+   * @param {string} type
+   * @returns {string}
+   */
+  static getFormattedType(type) {
+    const types = {
+      increment: 'inventory_adjustment.type.increment',
+      decrement: 'inventory_adjustment.type.decrement',
+    };
+    return types[type];
+  }
+
+  /**
+   * Relationship mapping.
+   */
+  static get relationMappings() {
+    const { InventoryAdjustmentEntry } = require('./InventoryAdjustmentEntry');
+    const { Account } = require('../../Accounts/models/Account.model');
+
+    return {
+      /**
+       * Adjustment entries.
+       */
+      entries: {
+        relation: Model.HasManyRelation,
+        modelClass: InventoryAdjustmentEntry,
+        join: {
+          from: 'inventory_adjustments.id',
+          to: 'inventory_adjustments_entries.adjustmentId',
+        },
+      },
+
+      /**
+       * Inventory adjustment account.
+       */
+      adjustmentAccount: {
+        relation: Model.BelongsToOneRelation,
+        modelClass: Account,
+        join: {
+          from: 'inventory_adjustments.adjustmentAccountId',
+          to: 'accounts.id',
+        },
+      },
+    };
+  }
+
+  /**
+   * Model settings.
+   */
+  // static get meta() {
+  //   return InventoryAdjustmentSettings;
+  // }
+}

packages/server/src/modules/InventoryAdjutments/models/InventoryAdjustmentEntry.ts

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+import { Model } from 'objection';
+import { BaseModel } from '@/models/Model';
+import { Item } from '@/modules/Items/models/Item';
+// import TenantModel from 'models/TenantModel';
+
+export class InventoryAdjustmentEntry extends BaseModel {
+  adjustmentId!: number;
+  index!: number;
+  itemId!: number;
+  quantity!: number;
+  cost!: number;
+  value!: number;
+
+  item!: Item;
+
+  /**
+   * Table name.
+   */
+  static get tableName() {
+    return 'inventory_adjustments_entries';
+  }
+
+  /**
+   * Relationship mapping.
+   */
+  static get relationMappings() {
+    const { InventoryAdjustment } = require('./InventoryAdjustment');
+    const { Item } = require('../../Items/models/Item');
+
+    return {
+      inventoryAdjustment: {
+        relation: Model.BelongsToOneRelation,
+        modelClass: InventoryAdjustment,
+        join: {
+          from: 'inventory_adjustments_entries.adjustmentId',
+          to: 'inventory_adjustments.id',
+        },
+      },
+
+      /**
+       * Entry item.
+       */
+      item: {
+        relation: Model.BelongsToOneRelation,
+        modelClass: Item,
+        join: {
+          from: 'inventory_adjustments_entries.itemId',
+          to: 'items.id',
+        },
+      },
+    };
+  }
+}