[RFR] Add link function to ReferenceField

docs/Fields.md

@@ -520,6 +520,15 @@ You can also prevent `<ReferenceField>` from adding link to children by setting
 </ReferenceField>
 ```
 
+You can also use a custom `linkType` function to get a custom path for the children.
+
+```jsx
+// Custom path
+<ReferenceField label="User" source="userId" reference="users" linkType={() => '/my/path'}>
+    <TextField source="name" />
+</ReferenceField>
+```
+
 **Tip**: React-admin uses `CRUD_GET_ONE_REFERENCE` action to accumulate and deduplicate the ids of the referenced records to make *one* `GET_MANY` call for the entire list, instead of n `GET_ONE` calls. So for instance, if the API returns the following list of comments:
 
 ```jsx

packages/ra-core/src/controller/field/useReference.ts

@@ -7,14 +7,16 @@ import { crudGetManyAccumulate } from '../../actions';
 import { linkToRecord } from '../../util';
 import { Record, ReduxState } from '../../types';
 
+type linkTypeFunction = () => string;
+
 interface Option {
     allowEmpty?: boolean;
     basePath: string;
     record?: Record;
     reference: string;
     resource: string;
     source: string;
-    linkType: string | boolean;
+    linkType: string | boolean | linkTypeFunction;
 }
 
 export interface UseReferenceProps {
@@ -50,7 +52,8 @@ export interface UseReferenceProps {
  * @param {Object} option
  * @param {boolean} option.allowEmpty do we allow for no referenced record (default to false)
  * @param {string} option.basePath basepath to current resource
- * @param {string | false} option.linkType The type of the link toward the referenced record. edit, show of false for no link (default to edit)
+ * @param {string | false | linkTypeFunction} option.linkType The type of the link toward the referenced record. 'edit', 'show' or
+ * false for no link (default to edit). Alternatively a function that returns a string
  * @param {Object} option.record The The current resource record
  * @param {string} option.reference The linked resource name
  * @param {string} option.resource The current resource name
@@ -80,6 +83,8 @@ export const useReference = ({
     const rootPath = basePath.replace(resource, reference);
     const resourceLinkPath = !linkType
         ? false
+        : typeof linkType === 'function'
+        ? linkType()
         : linkToRecord(rootPath, sourceId, linkType as string);
 
     return {

packages/ra-ui-materialui/src/field/ReferenceField.js

@@ -149,7 +149,7 @@ ReferenceField.propTypes = {
     sortBy: PropTypes.string,
     source: PropTypes.string.isRequired,
     translateChoice: PropTypes.func,
-    linkType: PropTypes.oneOfType([PropTypes.string, PropTypes.bool])
+    linkType: PropTypes.oneOfType([PropTypes.string, PropTypes.bool, PropTypes.func])
         .isRequired,
 };