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This is a general question about how Drupal renders content. Say I have a content type with 20 fields, including some entity references, text fields, integers, and so on. When I have a lot of fields …

If you want to run code just once when a node is created, the Rules module may be a better choice. Using Rules, you can do the following: Create a new rule that acts on the event "After saving new …

This can also be done with the Location Taxonomize module. Enable Location Taxonomize and create a taxonomy term reference as described in the module's README. Then, in Views, display this term refe …

Another way to do this is to use the Field Group module. This allows you to add a "group" of fields from the Manage fields screen in the same way that you add fields. By choosing "Fieldset" as the t …

This can be accomplished through the Form API. However, if you are a PHP novice, you would probably be better off using the Conditional Fields module. Although this is still in dev (no official rele …

You could use the Computed Field module, which allows you to write custom PHP functions to determine field values. You will of course need to be familiar with PHP.

One way to do this is the Computed Field module, which will allow you to use PHP to perform calculations. To use this, you could add a field, Total time, of type Computed Field. Then you could write …

I want to remove all the relations (created with the Relation module) on my site because I have replaced them with an entityreference field. At /admin/structure/relation, I can delete the Relation Ty …

I can't figure out how to unset an entity reference (remove a reference to a term from a node) when editing content via JSON:API. JSON to create a new node: const myNodeToPost = { data: { …

Thanks to franck_lorancy on drupal.org, I managed to fix this and it is now part of the documentation for PATCH: { "data": { "type": "node--article", "id": "{{article_uuid}}", "attribute …

To track inventory, take a look at how Drupal Commerce does it. The Commerce setup may be a little more complex than you need, but it is quite flexible and well supported. If you choose this approach …

What is important here is that entity reference allows you to separate concerns-- for example, you can make articles as node entities, and tags as taxonomy term entities-- instead of trying to smash everything … You can create specialized entities to accurately model each kind of data you have, and then link those together logically with entity references. …

In Drupal Commerce, you have entities for lots of things, like Stores (you can have multiple stores or a single store) Products Orders Payment methods All of these are separate entity types because a …

Entity query only has pretty basic sort available. You could write a more complicated query such as a SELECT query. However, given that you want to reuse this in Views, and given that you probably hav …

I have two fields, a select list of checkboxes and a taxonomy term reference. I would like the taxonomy term reference to be optional unless one of the checkboxes has a certain value, in which case a …