feat: relation field and picker

web/src/lib/entryMessages.ts

@@ -26,6 +26,8 @@ function requiredMessage(field: BuiltinField) {
 			return t('Choose yes or no for {0}.', [field.label])
 		case 'media':
 			return t('Pick an image for {0}.', [field.label])
+		case 'relation':
+			return t('Choose a {0}.', [field.label])
 		default:
 			return t('Fill in {0}.', [field.label])
 	}
@@ -43,6 +45,8 @@ function typeMessage(field: BuiltinField) {
 			return t('{0} must be one of the choices.', [field.label])
 		case 'media':
 			return t('{0} must be an image from the library.', [field.label])
+		case 'relation':
+			return t('{0} must point to an existing entry.', [field.label])
 		default:
 			return t('{0} must be text.', [field.label])
 	}
@@ -76,6 +80,8 @@ function uniqueMessage(field: BuiltinField) {
 			return t('Another entry already uses this choice for {0}.', [field.label])
 		case 'date':
 			return t('Another entry already uses this date for {0}.', [field.label])
+		case 'relation':
+			return t('That {0} is already used by another entry.', [field.label])
 		default:
 			return t('Another entry already uses this {0}. Enter a different one.', [field.label])
 	}