New multiselect field type (even though this already was possible with select)

Author: jissereitsma

Form/Field/FieldType/Multiselect.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace Loki\AdminComponents\Form\Field\FieldType;
+
+use Loki\AdminComponents\Form\Field\Field;
+use Loki\AdminComponents\Form\Field\FieldTypeInterface;
+use Magento\Framework\Data\OptionSourceInterface;
+use Magento\Framework\ObjectManagerInterface;
+
+class Multiselect extends Select
+{
+}

etc/di.xml

@@ -38,6 +38,7 @@
                 <item name="datetime" xsi:type="object">Loki\AdminComponents\Form\Field\FieldType\Datetime</item>
                 <item name="number" xsi:type="object">Loki\AdminComponents\Form\Field\FieldType\Number</item>
                 <item name="select" xsi:type="object">Loki\AdminComponents\Form\Field\FieldType\Select</item>
+                <item name="multiselect" xsi:type="object">Loki\AdminComponents\Form\Field\FieldType\Multiselect</item>
                 <item name="switch" xsi:type="object">Loki\AdminComponents\Form\Field\FieldType\Switcher</item>
                 <item name="from_to" xsi:type="object">Loki\AdminComponents\Form\Field\FieldType\FromTo</item>
                 <item name="product_id" xsi:type="object">Loki\AdminComponents\Form\Field\FieldType\ProductId</item>