"Full data" GraphQL mode for Link fields

[brandonkelly]

Description

Adds a “GraphQL Mode” setting to Link fields, with the options “Full data” and “URL only”.

“Full data” will be selected by default for new Link fields; “URL only” will be selected by default for existing Link fields (for backwards compatibility on existing GraphQL APIs).

When “Full data” is selected, Link fields will be represented in GraphQL as objects with the following sub-fields:

• type
• value
• label
• urlSuffix
• url
• elementType
• elementId
• elementSiteId
• elementTitle

For mutating Link field values, an object will need to be passed with the following sub-fields:

• type (set to a valid link type ID, e.g. url or entry)
• value (set to the URL or element reference tag)
• label (optional)
• urlSuffix (optional)

Related issues

• [5.5.x] Link field data in GraphQL #16104