- feat: Sales estimates.

- feat: Sales invoices.
- feat: Sales payment receives.
- feat: Purchases bills.
- feat: Purchases bills payments that made to the vendors.

server/src/models/ItemEntry.js

@@ -0,0 +1,35 @@
+import path from 'path';
+import { Model } from 'objection';
+import TenantModel from '@/models/TenantModel';
+
+export default class ItemEntry extends TenantModel {
+  /**
+   * Table name.
+   */
+  static get tableName() {
+    return 'items_entries';
+  }
+
+  /**
+   * Timestamps columns.
+   */
+  get timestamps() {
+    return ['created_at', 'updated_at'];
+  }
+
+  /**
+   * Relationship mapping.
+   */
+  static get relationMappings() {
+    return {
+
+    };
+  }
+
+  static calcAmount(itemEntry) {
+    const { discount, quantity, rate } = itemEntry;
+    const total = quantity * rate;
+
+    return discount ? total - (total * discount * 0.01) : total;
+  }
+}