This documentation page describes how you can customize the forms used to enter product data in Drupal Commerce. The forms that are used to edit product and product variation types can be configured uniquely for each of your product and variation types.
In the Product architecture documentation, we created a Simple product type that had only a single variation per product and a Clothing product type with multiple variations per product. Let's start by comparing the forms for these two product types. On the left, we have the form for the Simple product type, with a Product Information section that includes data entry fields for the single product variation. On the right, we have the form for the Clothing product type, with a Variations tab that links to a separate page for managing the product's variations. The rest of the forms is identical.
To customize the product data entry form, start by navigating to the Manage form display configuration page for your product type. For the Simple product type, that page is located at
/admin/commerce/config/product-types/simple/edit/form-display. Let's look at the configuration form (on the left) alongside the product form (on the right) to better understand how they're related.
The first thing to notice is that there are four fields that do not appear in the main section of the form; the Stores, URL alias, Author, and Created fields are separated into a Sidebar section of the product field. We will look at the Sidebar section next, but for now, let's focus on the main section of the product form.
For the non-sidebar product fields, you can use a product type's Manage form display configuration page to control:
The Sidebar section of the product form, highlighted in green in the image above, is a custom administrative section that separates a set of specific product fields from the rest of the form.
The Stores field appears in the Visibility settings of the Sidebar section of the product data entry form. If you have only a single store for your site and want to hide the Visibility settings from users, use the Entity select field widget with its Hide if there's only one available entity setting enabled. Make sure you do not Disable the Stores field; it is required, and if a product isn't assigned to any store, your customers will get ugly error messages when they attempt to add the product to their cart.
By default, Entity select is set as the widget for the Stores field. This is a custom Drupal Commerce widget that can be used by entity reference fields, like Stores. The entity select widget is an adaptive field widget that changes its form element based on the number of available options for the field. If there is only one available entity (i.e., only one available store in this case), you can enable a setting to hide the field completely. If shown, the single option will be displayed with either a checkbox or radio button. Checkboxes are used whenever multiple items can be selected; radio buttons are used when only a single item can be selected. Since products can belong to multiple stores, checkboxes will be used for the Stores field. You can also set an autocomplete threshold for the Entity select widget. If the number of option values exceeds the autocomplete threshold, then an autocomplete field will be presented to the user instead of checkboxes/radio buttons. Users can use the autocomplete field to enter text to search for the Store by name.
If you do not want to use the Entity select widget, you can select one of the other available options. However, you should avoid using the Inline entity form - Complex widget, since you will generally not want users to edit Store data when they're editing products.
To set the configuration options for your selected widget, use the gear icon link that appears in the rightmost column of the Manage form display fields table.
The URL alias field appears in the URL path settings of the Sidebar section of the product data entry form. If you move the URL alias to the Disabled section of the Manage form display configuration form, URL path settings will not appear on your product data entry forms. In a standard Drupal Commerce installation, there are no alternative widgets or configuration options available for this field.
The Author and Created fields appear in the Authoring information of the Sidebar section of the product data entry form. If both fields are Disabled, Authoring information will not appear on your product data entry forms.
The Author field can reference any User, including any that are customers rather than administrative users, so the list of options for Author may be quite long. As a result, you will probably want to use the Autocomplete field widget for the Author field.
In a standard Drupal Commerce installation, there are no alternative widgets or configuration options available for the Created field.
The Single variation (Product information) widget is used for the Variations field. Unless you've developed a custom field widget for your product variations field, you should not change the widget type for the Variations field. This widget embeds a data entry form for a product variation, as configured for the specific product variation type. In this case, we are looking at a Simple product with a Simple product variation type. To customize the data entry form for the Simple product variation, navigate to its Manage form display configuration form at
In the above image, you can see how the settings for the form display of the Simple product variation type (on the left) correspond to the Variations form that's embedded into the data entry form for the Simple product (on the right).
You can use a product variation type's Manage form display configuration form to control:
For product types that allow multiple variations per product, administrative users will see a Variations tab when editing or viewing products. Clicking on the Variations tab link takes you to another page, separate from the main product form. So you'll want to make sure administrative users understand that they need to click the Save button on a product's Edit page before navigating to its Variations page.
A product's Variations page is a draggable list of variations with operations links in the rightmost column. To customize the edit form for product variations, use the product variation type's Manage form display configuration form as described above.
If you need to customize the layout for your product form beyond what is possible using the administration UI, you can use the product form Twig template as part of a custom theme. Theming is an advanced topic beyond the scope of this Drupal Commerce documentation guide. For an overview, please see the Theming Drupal Guide on Drupal.org.
The default product form template is commerce-product-form.html.twig
Also, you may want to look at the custom css library that's used for the default product form, located within the Drupal Commerce Product module:
In the next section, we'll look at customization options for the Product overview page.
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