fix: delete customer with associated opening journal entries.

server/src/api/controllers/Contacts/Contacts.ts

@@ -212,7 +212,7 @@ export default class ContactsController extends BaseController {
    */
   get bulkContactsSchema(): ValidationChain[] {
     return [
-      query('ids').isArray({ min: 2 }),
+      query('ids').isArray({ min: 1 }),
       query('ids.*').isNumeric().toInt(),
     ];
   }

server/src/loaders/tenantModels.ts

@@ -10,6 +10,7 @@ import Bill from 'models/Bill';
 import BillPayment from 'models/BillPayment';
 import BillPaymentEntry from 'models/BillPaymentEntry';
 import Currency from 'models/Currency';
+import Contact from 'models/Contact';
 import Vendor from 'models/Vendor';
 import Customer from 'models/Customer';
 import ExchangeRate from 'models/ExchangeRate';
@@ -69,6 +70,7 @@ export default (knex) => {
     MediaLink,
     Vendor,
     Customer,
+    Contact,
   };
   return mapValues(models, (model) => model.bindKnex(knex));
 }

server/src/services/Contacts/ContactsService.ts

@@ -182,14 +182,14 @@ export default class ContactsService {
   async getContactsOrThrowErrorNotFound(
     tenantId: number,
     contactsIds: number[],
-    contactService: TContactService
+    contactService: TContactService,
   ) {
     const { Contact } = this.tenancy.models(tenantId);
     const contacts = await Contact.query()
       .whereIn('id', contactsIds)
       .where('contact_service', contactService);
-    const storedContactsIds = contacts.map((contact: IContact) => contact.id);
 
+    const storedContactsIds = contacts.map((contact: IContact) => contact.id);
     const notFoundCustomers = difference(contactsIds, storedContactsIds);
 
     if (notFoundCustomers.length > 0) {
@@ -211,6 +211,8 @@ export default class ContactsService {
     contactService: TContactService
   ) {
     const { contactRepository } = this.tenancy.repositories(tenantId);
+
+    // Retrieve the given contacts or throw not found service error.
     this.getContactsOrThrowErrorNotFound(tenantId, contactsIds, contactService);
 
     await contactRepository.deleteWhereIdIn(contactsIds);
@@ -230,11 +232,12 @@ export default class ContactsService {
     const { AccountTransaction } = this.tenancy.models(tenantId);
     const journal = new JournalPoster(tenantId);
 
+    // Loads the contact opening balance journal transactions.
     const contactsTransactions = await AccountTransaction.query()
       .whereIn('reference_id', contactsIds)
       .where('reference_type', `${upperFirst(contactService)}OpeningBalance`);
 
-    journal.loadEntries(contactsTransactions);
+    journal.fromTransactions(contactsTransactions);
     journal.removeEntries();
 
     await Promise.all([journal.saveBalance(), journal.deleteEntries()]);

server/src/services/Contacts/CustomersService.ts

@@ -1,5 +1,5 @@
 import { Inject, Service } from 'typedi';
-import { omit, difference, defaultTo } from 'lodash';
+import { omit, intersection, defaultTo } from 'lodash';
 import {
   EventDispatcher,
   EventDispatcherInterface,
@@ -71,6 +71,10 @@ export default class CustomersService {
     };
   }
 
+  /**
+   * Transforms the contact model to customer model.
+   * @param {IContact} contactModel
+   */
   private transformContactToCustomer(contactModel: IContact) {
     return {
       ...omit(contactModel.toJSON(), ['contactService', 'contactType']),
@@ -172,6 +176,7 @@ export default class CustomersService {
 
     await this.contactService.deleteContact(tenantId, customerId, 'customer');
 
+    // Throws `onCustomerDeleted` event.
     await this.eventDispatcher.dispatch(events.customers.onDeleted, {
       tenantId,
       customerId,
@@ -182,29 +187,6 @@ export default class CustomersService {
     });
   }
 
-  /**
-   * Reverts customer opening balance journal entries.
-   * @param {number} tenantId -
-   * @param {number} customerId -
-   * @return {Promise<void>}
-   */
-  public async revertOpeningBalanceEntries(
-    tenantId: number,
-    customerId: number | number[]
-  ) {
-    const id = Array.isArray(customerId) ? customerId : [customerId];
-
-    this.logger.info(
-      '[customer] trying to revert opening balance journal entries.',
-      { tenantId, customerId }
-    );
-    await this.contactService.revertJEntriesContactsOpeningBalance(
-      tenantId,
-      id,
-      'customer'
-    );
-  }
-
   /**
    * Retrieve the given customer details.
    * @param {number} tenantId
@@ -262,16 +244,43 @@ export default class CustomersService {
   public async writeCustomerOpeningBalanceJournal(
     tenantId: number,
     customerId: number,
-    openingBalance: number
+    openingBalance: number,
+    openingBalanceAt: Date | string
   ) {
     const journal = new JournalPoster(tenantId);
     const journalCommands = new JournalCommands(journal);
 
-    await journalCommands.customerOpeningBalance(customerId, openingBalance);
+    await journalCommands.customerOpeningBalance(
-
+      customerId,
+      openingBalance,
+      openingBalanceAt
+    );
     await Promise.all([journal.saveBalance(), journal.saveEntries()]);
   }
 
+  /**
+   * Reverts customer opening balance journal entries.
+   * @param {number} tenantId -
+   * @param {number} customerId -
+   * @return {Promise<void>}
+   */
+  public async revertOpeningBalanceEntries(
+    tenantId: number,
+    customerId: number | number[]
+  ) {
+    const id = Array.isArray(customerId) ? customerId : [customerId];
+
+    this.logger.info(
+      '[customer] trying to revert opening balance journal entries.',
+      { tenantId, customerId }
+    );
+    await this.contactService.revertJEntriesContactsOpeningBalance(
+      tenantId,
+      id,
+      'customer'
+    );
+  }
+
   /**
    * Retrieve the given customer by id or throw not found.
    * @param {number} tenantId
@@ -310,11 +319,20 @@ export default class CustomersService {
   public async deleteBulkCustomers(tenantId: number, customersIds: number[]) {
     const { Contact } = this.tenancy.models(tenantId);
 
+    // Validate the customers existance on the storage.
     await this.getCustomersOrThrowErrorNotFound(tenantId, customersIds);
+
+    // Validate the customers have no associated invoices.
     await this.customersHaveNoInvoicesOrThrowError(tenantId, customersIds);
 
+    // Deletes the given customers.
     await Contact.query().whereIn('id', customersIds).delete();
-    await this.eventDispatcher.dispatch(events.customers.onBulkDeleted);
+
+    // Triggers `onCustomersBulkDeleted` event.
+    await this.eventDispatcher.dispatch(events.customers.onBulkDeleted, {
+      tenantId,
+      customersIds,
+    });
   }
 
   /**
@@ -361,12 +379,10 @@ export default class CustomersService {
     const customersIdsWithInvoice = customersInvoices.map(
       (saleInvoice: ISaleInvoice) => saleInvoice.customerId
     );
-
+    const customersHaveInvoices = intersection(
-    const customersHaveInvoices = difference(
       customersIds,
       customersIdsWithInvoice
     );
-
     if (customersHaveInvoices.length > 0) {
       throw new ServiceError('some_customers_have_invoices');
     }

server/src/services/Items/ItemsService.ts

@@ -465,7 +465,7 @@ export default class ItemsService implements IItemsService {
     const { Item } = this.tenancy.models(tenantId);
 
     const storedItems = await Item.query().whereIn('id', itemsIDs);
-    const storedItemsIds = storedItems.map((t) => t.id);
+    const storedItemsIds = storedItems.map((t: IItem) => t.id);
 
     const notFoundItemsIds = difference(itemsIDs, storedItemsIds);
     return notFoundItemsIds;
@@ -474,7 +474,7 @@ export default class ItemsService implements IItemsService {
   /**
    * Deletes items in bulk.
    * @param {number} tenantId
-   * @param {number[]} itemsIds
+   * @param {number[]} itemsIds - Items ids.
    */
   public async bulkDeleteItems(tenantId: number, itemsIds: number[]) {
     const { Item } = this.tenancy.models(tenantId);

server/src/subscribers/customers.ts

@@ -1,4 +1,4 @@
-import { Container, Inject, Service } from 'typedi';
+import { Container } from 'typedi';
 import { EventSubscriber, On } from 'event-dispatch';
 import events from 'subscribers/events';
 import TenancyService from 'services/Tenancy/TenancyService';
@@ -15,6 +15,9 @@ export default class CustomersSubscriber {
     this.customersService = Container.get(CustomersService);
   }
 
+  /**
+   * Handles the writing opening balance journal entries once the customer created.
+   */
   @On(events.customers.onCreated)
   async handleWriteOpenBalanceEntries({ tenantId, customerId, customer }) {
 
@@ -24,10 +27,14 @@ export default class CustomersSubscriber {
         tenantId,
         customer.id,
         customer.openingBalance,
+        customer.openingBalanceAt,
       );
     }
   }
 
+  /**
+   * Handles the deleting opeing balance journal entrise once the customer deleted.
+   */
   @On(events.customers.onDeleted)
   async handleRevertOpeningBalanceEntries({ tenantId, customerId }) {
 
@@ -36,6 +43,10 @@ export default class CustomersSubscriber {
     );
   }
 
+  /**
+   * Handles the deleting opening balance journal entries once the given
+   * customers deleted.
+   */
   @On(events.customers.onBulkDeleted)
   async handleBulkRevertOpeningBalanceEntries({ tenantId, customersIds }) {