feat: relation field and picker

web/src/lib/schemaBuilderPayload.ts

@@ -1,5 +1,6 @@
 import {
 	effectiveDefault,
+	holdsRelation,
 	isUnique,
 	supportsChoices,
 	supportsLimits,
@@ -7,6 +8,7 @@ import {
 	type BuilderField,
 	type BuilderForm,
 } from '@/lib/schemaBuilderModel'
+import type { RelationDefinition } from '@/lib/relationField'
 
 export interface PayloadField {
 	key: string
@@ -18,6 +20,7 @@ export interface PayloadField {
 	min: number | string | null
 	max: number | string | null
 	options: string[]
+	relation: RelationDefinition | null
 }
 
 export interface ContentTypePayload {
@@ -50,6 +53,12 @@ export interface UpdatePayload {
 	fields: PayloadField[]
 }
 
+function relationFor(field: BuilderField): RelationDefinition | null {
+	return holdsRelation(field.type)
+		? { content_type: field.relationType, kind: field.relationKind }
+		: null
+}
+
 export function payloadField(field: BuilderField): PayloadField {
 	return {
 		key: field.key,
@@ -61,6 +70,7 @@ export function payloadField(field: BuilderField): PayloadField {
 		min: limit(field, field.min),
 		max: limit(field, field.max),
 		options: supportsChoices(field.type) ? trimmedOptions(field) : [],
+		relation: relationFor(field),
 	}
 }