The File Field

The File field (internally file) provides a drag-and-drop area, or a way to select and upload multimedia documents attached to the resource (images, PDFs, videos, etc.).

Field Structure

Unlike text fields, the file field has specific options for managing media:

Name:

• Description: Label to identify the type of files expected.
• Example: "Attached documents", "Main photograph".

Destination:

• Description: Files are generally not embedded at the same level as text metadata; instead, they are linked through an identifier or tag that relates the uploaded file to this form field.

Allowed formats:

• Description: Allows limiting the accepted extension types.
• Example: Only allow image/* and application/pdf.

File limit:

• Description: The maximum number of files that can be uploaded in this specific field.
• Example: Limit to 1 to force a single cover image.

Required:

• Description: Prevents the user from saving the record if a file has not been uploaded and associated with this field.

Instructions, Condition, and Access levels:

• Description: Common elements for help, dynamic display, and security.

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Behavior in the interface

• The interface (DropzoneArea) shows an interactive area to drop files.
• It allows viewing the currently uploaded files as labels (chips).
• Existing files associated with the resource appear listed, allowing them to be removed or replaced according to the configured limit.

Label preview

Each file associated with a resource is identified by a label (tag) in a distinct color, visible both from the resource’s detail view and from its edit form once the file has been uploaded and saved: