I have a text field that I use to store an entity title. It is not the "native" entity title, but just a field named field_title.
Now I want to display this text field as a link to the entity (e.g. product/123). (I am working with Display Suite here, but the question is not limited to that)
I know I could simply create a custom formatter for this. But isn't there an easier way? I think I even did this once, just can't remember.
I also found the Field Value Link Formatter module , but this doesn't seem to be it.
EDIT: There are some known solutions like DS custom fields, or Custom Formatters, or hook_field_formatter_info() in a custom module, or node template override, or field template override, or the awesome hook_ds_field_theme_functions_info().
However: This seems such a recurring use case that I consider to write a new (reusable) module and publish it. So, I am looking for a solution so easy that it invalidates the desire to write a new module :) I think I saw something like this once, just can't remember.