fixes

react-openapi/components/GenericForm.tsx

@@ -45,6 +45,7 @@ export default function GenericForm({
     let relations: string[] = [];
     Object.values(fields).forEach(field => {
       if (field.relation) relations.push(field.relation);
+      if (field.refers) relations.push(field.refers);
       if (field.schema) relations = [...relations, ...getRelationFields(field.schema)];
     });
     return Array.from(new Set(relations));

react-openapi/components/fields/RelationField.tsx

@@ -3,15 +3,20 @@ import { getFieldOptions } from '../../utils/options';
 import { FieldComponentProps } from '../../types/overrides';
 
 export default function RelationField({ field, value, onChange, disabled, relationDataMap = {} }: FieldComponentProps) {
-  if (!field.relation || !relationDataMap[field.relation]) {
-    return null;
+  const relationName = field.relation ?? (field as any).refers;
+  if (!relationName || !relationDataMap[relationName]) {
+    throw new Error(`Relation data for "${relationName}" is missing – cannot render options for field "${field.label}"`);
   }
 
-  const relationData = relationDataMap[field.relation];
+  const relationData = relationDataMap[relationName];
   const isArrayRelation = field.type === 'array';
   const options = getFieldOptions(field, relationData);
+  if (options.length === 0) {
+    throw new Error(`No selectable options available for field "${field.label}" (relation "${relationName}")`);
+  }
   const keyField = field.enumOption?.key ?? 'id';
 
+
   const normalizedValue = (() => {
     if (isArrayRelation && Array.isArray(value)) {
       return value.map((v: any) => (v != null && typeof v === 'object' ? String(v[keyField] ?? '') : String(v)));

react-openapi/utils/options.ts

@@ -17,6 +17,9 @@ export function getFieldOptions(field: ResourceField, relationData?: any[]): Sel
 
   if (field.relation) {
     const data = Array.isArray(relationData) ? relationData : [];
+    if (data.length === 0) {
+      throw new Error(`Relation data for "${field.relation}" is missing or empty – cannot build options for field "${field.label}"`);
+    }
     const enumOption = field.enumOption;
     if (!enumOption) {
       throw new Error(