Links are a powerful way to model relationships between content. Models can have link fields which point to other records, for example:
In DatoCMS you don't need to define a field for the reverse relationship (ie. the category linking to its articles): as we'll discover later during the integration with your static website, you can easily perform reverse reference lookups in a couple of lines of code.
When you add a new field of type Link (or Links) to a model, DatoCMS requires you to specify, within the Validations tab, the models that can be referenced in the field itself.
To let the editors select one (or more) records to link, DatoCMS will present a dropdown with auto-completion turned on:
If you prefer, you can switch any field to Expanded view mode, to allow your editors to have a nicer, more meaningful preview of the linked records:
As with any other fields, this setting is under the Presentation tab of your field: