The relation widget allows you to reference items from another collection. It provides a search input with a list of entries from the collection you're referencing, and the list automatically updates with matched entries based on what you've typed.
- **Name:** `relation`
- **UI:** text input with search result dropdown
- **Data type:** data type of the value pulled from the related collection item
- **Options:**
-`default`: accepts any widget data type; defaults to an empty string
-`collection`: (**required**) name of the collection being referenced (string)
-`searchFields`: (**required**) list of one or more names of fields in the referenced collection to search for the typed value
-`valueField`: (**required**) name of the field from the referenced collection whose value will be stored for the relation
- **Example** (assuming a separate "authors" collection with "name" and "twitterHandle" fields):
The generated UI input will search the authors collection by name and twitterHandle as the user types. On selection, the author name will be saved for the field.
