In this article, we will see how we built custom blocks in EK management tools suite with a sample basic block in a module called 'mymodule' used for demo. It can be used to display multiple content, static or dynamic as in the example above.

Create the block script

First we will create a script that will display some content within a block. the script file will be called MyBlock.php and is placed in /mymodule/src/Plugin/Block/.

Swiftmailer is abandoned and will be replaced by Symfony Mailer : check our post about Symfony Mailer

In a previous post from 2015, we described usage of Swift Mailer module to send HTML mail and mail with attachment. At this time, the module was not yet available for Drupal 8.

There is now a version alpha1 available. Let's go through installation process.

Because it has been rather tedious for us, we will try to explain the flow of the process as much as possible to help you save time.

1) Composer

The prerequisite is the installation of composer.

In our case we installed first on Windows inside a folder named  F:\Program Files\composer2\.

In Drupal 8 there is a Tour module in core that is very useful when it comes to web applications. In EK management tools we target professional users with small to medium scale companies. They usually have limited resources and time to spend on back office trainings. This is where the Tour module is very convenient to introduce functionalities to users who can quickly grasp the functions available to manage their back office.

We use the Tour functionality in our pages to guide users in their daily tasks like for instance in the form to create a new invoice or project page:

In previous articles (here and here), we have seen a method to add custom views and data in MyModule.

With Drupal 8 there is a very easy and practical way to add this custom view as a configuration that will be installed with the module.

1) extract the configuration data

Navigate to "/admin/config/development/configuration/single/export".

On this page, select configuration type 'view' and configuration name 'My module list' that was created earlier.

2) create configuration install file

You will obtain from the above export a list of configuration data that you can copy and paste into a file called for instance "views.view.mymodule-list.yml";

Simply place this file into the install folder :

In previous article we have seen how to declare the data accessible in a custom view in MyModule.

Now that the data from our tables mymodule_tb (and mymodule_tb_2) are available, let's create the list view.

First navigate to "/admin/structure/views/add" and create the view by entering basic information as per the example below.

After "save" you are redirected to "Edit" form where further settings will be set.

1) Add fields from you source table

In our EK management tools suite we have custom designed lists of items like for instance list of management documents.

Those lists are build with custom codes and templates which is somehow more convenient to manage with complex data, links, menus and filters as in the example below.

However for simple list, the views module is very useful and can be integrated in a custom module as well to automatically create the list.

Here is an example with companies list in the system address book module showing the company name as link and a field about the type of record plus a simple filter box.

In this article we will describe how we created the calendar in our back-office management application EK (see demo).

For this function, we used the FullCalendar plugin and its dependencies.

1) Create the Drupal 8 library

In a file called MyModule.libraries.yml, insert the following css and js configurations:

In this article we will show a solution to add an ajax call to populate multiple information in a Drupal 8 form textarea element.

In this example, the script will autocomplete users list in the form for a custom module called MyModule. The user will enter first 2 letters of a name or email.

1) create a library

In MyModule.libraries.yml add the necessary javascript reference that will be used to populate the users in the form:

MyModule_lib:
  version: VERSION
  js:
    js/autocomplete.js: {}
  dependencies:
    - core/jquery
    - core/jquery.ui.autocomplete

The autocomplete function as dependencies which are based on jQuery library.

2) JS script

The jQuery autocomplete.js file that we use is copied below. It is implemented as Drupal behaviors You need to add this file in MyModule/js/ folder.
 

JS script:

Configuring Drupal with a remote database is possible and in some cases recommended.

Our Drupal 8 EK management tools application is a particularly good case where this setup is very helpful. EK manages Drupal system configuration database and content database separately. In other words, the installed database from Drupal 8 and the database where all EK custom modules save their data are different.

This configuration brings few benefits: