add server to monorepo.

packages/server/src/models/InventoryCostLotTracker.ts

@@ -0,0 +1,112 @@
+import { Model } from 'objection';
+import { castArray, isEmpty } from 'lodash';
+import moment from 'moment';
+import TenantModel from 'models/TenantModel';
+
+export default class InventoryCostLotTracker extends TenantModel {
+  /**
+   * Table name
+   */
+  static get tableName() {
+    return 'inventory_cost_lot_tracker';
+  }
+
+  /**
+   * Model timestamps.
+   */
+  static get timestamps() {
+    return [];
+  }
+
+  /**
+   * Model modifiers.
+   */
+  static get modifiers() {
+    return {
+      groupedEntriesCost(query) {
+        query.select(['date', 'item_id', 'transaction_id', 'transaction_type']);
+        query.sum('cost as cost');
+
+        query.groupBy('transaction_id');
+        query.groupBy('transaction_type');
+        query.groupBy('date');
+        query.groupBy('item_id');
+      },
+      filterDateRange(query, startDate, endDate, type = 'day') {
+        const dateFormat = 'YYYY-MM-DD HH:mm:ss';
+        const fromDate = moment(startDate).startOf(type).format(dateFormat);
+        const toDate = moment(endDate).endOf(type).format(dateFormat);
+
+        if (startDate) {
+          query.where('date', '>=', fromDate);
+        }
+        if (endDate) {
+          query.where('date', '<=', toDate);
+        }
+      },
+
+      /**
+       * Filters transactions by the given branches.
+       */
+      filterByBranches(query, branchesIds) {
+        const formattedBranchesIds = castArray(branchesIds);
+
+        query.whereIn('branchId', formattedBranchesIds);
+      },
+
+      /**
+       * Filters transactions by the given warehosues.
+       */
+      filterByWarehouses(query, branchesIds) {
+        const formattedWarehousesIds = castArray(branchesIds);
+
+        query.whereIn('warehouseId', formattedWarehousesIds);
+      },
+    };
+  }
+
+  /**
+   * Relationship mapping.
+   */
+  static get relationMappings() {
+    const Item = require('models/Item');
+    const SaleInvoice = require('models/SaleInvoice');
+    const ItemEntry = require('models/ItemEntry');
+    const SaleReceipt = require('models/SaleReceipt');
+
+    return {
+      item: {
+        relation: Model.BelongsToOneRelation,
+        modelClass: Item.default,
+        join: {
+          from: 'inventory_cost_lot_tracker.itemId',
+          to: 'items.id',
+        },
+      },
+      invoice: {
+        relation: Model.BelongsToOneRelation,
+        modelClass: SaleInvoice.default,
+        join: {
+          from: 'inventory_cost_lot_tracker.transactionId',
+          to: 'sales_invoices.id',
+        },
+      },
+      itemEntry: {
+        relation: Model.BelongsToOneRelation,
+        modelClass: ItemEntry.default,
+        join: {
+          from: 'inventory_cost_lot_tracker.entryId',
+          to: 'items_entries.id',
+        },
+      },
+      receipt: {
+        relation: Model.BelongsToOneRelation,
+        modelClass: SaleReceipt.default,
+        join: {
+          from: 'inventory_cost_lot_tracker.transactionId',
+          to: 'sales_receipts.id',
+        },
+      },
+    };
+  }
+}