Magento 2.1.0 - category custom attribute

In the blog post, you can get how to create the category attributes to the database. In magento 2.0.0, it was enough to show the field on the category. But, in magento 2.1.0 onwards, we need to add some more code to show the field on the admin category edit page.

Create view/adminhtml/ui_component/category_form.xml and add the below code to add the custom field to the content section of the category. You can get all the list from vendor/magento/module-catalog/view/adminhtml/ui_component/category_form.xml.

<?xml version="1.0" encoding="UTF-8"?>
<form xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
    <fieldset name="content">
        <field name="sample_module_field">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="sortOrder" xsi:type="number">110</item>
                    <item name="dataType" xsi:type="string">string</item>
                    <item name="formElement" xsi:type="string">input</item>
                    <item name="label" xsi:type="string" translate="true">Custom Field</item>
                </item>
            </argument>
        </field>
    </fieldset>
</form>