#1992: Metadata editor - 2-levels nested dropdown support (#1993)

Author: dsuren1

geonode_mapstore_client/client/js/api/geonode/v2/metadata.js

@@ -12,19 +12,34 @@ import {
     RESOURCES,
     getEndpointUrl
 } from './constants';
-import { isObject, isArray, castArray } from 'lodash';
+import isObject from 'lodash/isObject';
+import isArray from 'lodash/isArray';
+import castArray from 'lodash/castArray';
+import isEmpty from 'lodash/isEmpty';
+
+const uiKeys = (entry) => Object.keys(entry).filter(propertyKey => propertyKey.indexOf('ui:') === 0);
 
 const parseUiSchema = (properties) => {
     return Object.keys(properties).reduce((acc, key) => {
         const entry = properties[key];
-        const uiKeys = Object.keys(entry).filter(propertyKey => propertyKey.indexOf('ui:') === 0);
-        if (uiKeys.length) {
-            acc[key] = Object.fromEntries(uiKeys.map(uiKey => [uiKey, entry[uiKey]]));
+        const uiKeysRoot = uiKeys(entry);
+        if (uiKeysRoot.length) {
+            acc[key] = Object.fromEntries(uiKeysRoot.map(uiKey => [uiKey, entry[uiKey]]));
+        }
+        if (entry.type === 'array') {
+            const uiKeysNested = uiKeys(entry?.items);
+            if (uiKeysNested.length) {
+                acc[key] = Object.fromEntries(uiKeysNested.map(uiKey => [uiKey, entry?.items?.[uiKey]]));
+            }
         }
         if (entry.type === 'object') {
             const nestedProperties = parseUiSchema(entry?.properties);
             acc[key] = { ...acc[key], ...nestedProperties };
         }
+        if (entry.type === 'array' && entry.items?.type === 'object') {
+            const nestedProperties = parseUiSchema(entry?.items?.properties);
+            acc[key] = { ...acc[key], ...(!isEmpty(nestedProperties) && {items: {...nestedProperties}}) };
+        }
         return acc;
     }, {});
 };

geonode_mapstore_client/client/js/plugins/MetadataEditor/components/_fields/SchemaField.jsx

@@ -11,8 +11,10 @@ import axios from '@mapstore/framework/libs/ajax';
 import castArray from 'lodash/castArray';
 import isEmpty from 'lodash/isEmpty';
 import isString from 'lodash/isString';
+import template from 'lodash/template';
 import Autocomplete from '../Autocomplete';
 import DefaultSchemaField from '@rjsf/core/lib/components/fields/SchemaField';
+import useSchemaReference from './useSchemaReference';
 
 function findProperty(name, properties) {
     return Object.keys(properties || {}).some((key) => {
@@ -58,6 +60,7 @@ const SchemaField = (props) => {
         (isSchemaItemObject && !isEmpty(schema?.items?.properties))
     );
     const isSingleSelect = schema?.type === 'object' && !isEmpty(schema?.properties);
+    const { referenceValue, referenceKey } = useSchemaReference({...props, isMultiSelect });
 
     if (autocomplete && (isMultiSelect || isSingleSelect)) {
         const {
@@ -87,7 +90,10 @@ const SchemaField = (props) => {
         const autocompleteOptions = isString(autocomplete)
             ? { url: autocomplete }
             : autocomplete;
-        const autocompleteUrl = autocompleteOptions?.url;
+        let autocompleteUrl = autocompleteOptions?.url;
+        if (referenceValue) {
+            autocompleteUrl = template(autocompleteUrl)({[referenceKey ?? 'id']: referenceValue });
+        }
         const queryKey = autocompleteOptions?.queryKey || 'q';
         const resultsKey = autocompleteOptions?.resultsKey || 'results';
         const valueKey = autocompleteOptions?.valueKey || 'id';

geonode_mapstore_client/client/js/plugins/MetadataEditor/components/_fields/useSchemaReference.js

@@ -0,0 +1,47 @@
+import {useEffect, useRef} from 'react';
+import get from 'lodash/get';
+import template from 'lodash/template';
+
+export default ({
+    uiSchema,
+    idSchema,
+    onChange,
+    isMultiSelect,
+    formContext,
+    name
+}) => {
+    const uiOptions = uiSchema?.['ui:options'];
+    const referenceValuePath = uiOptions?.['geonode-ui:referencevalue'];
+    const referenceKey = uiOptions?.['geonode-ui:referencekey'];
+
+    // Extract index from the ID schema
+    const match = idSchema.$id.match(/_(\d+)(_|$)/);
+    const index = match ? parseInt(match[1], 10) : null;
+    const referenceValue = referenceValuePath
+        ? get(formContext, `metadata.${template(referenceValuePath)({'index': index})}`)
+        : null;
+    const prevReferenceValue = useRef(null);
+
+    const storeReferenceValue = (value) => {
+        prevReferenceValue.current = {
+            ...prevReferenceValue.current, [name]: value
+        };
+    };
+
+    useEffect(() => {
+        // store the initial reference value
+        if (prevReferenceValue.current === null && referenceValuePath) {
+            storeReferenceValue(referenceValue);
+        }
+    }, []);
+
+    useEffect(()=> {
+        // to reset the form data when the parent field reference value changes
+        if (referenceValuePath && referenceValue !== prevReferenceValue.current?.[name]) {
+            storeReferenceValue(referenceValue);
+            onChange(isMultiSelect ? [] : {});
+        }
+    }, [referenceValuePath, referenceValue]);
+
+    return { referenceValue, referenceKey };
+};

geonode_mapstore_client/client/js/plugins/MetadataEditor/containers/MetadataEditor.jsx

@@ -109,7 +109,8 @@ function MetadataEditor({
                     readonly={readOnly}
                     ref={initialize.current}
                     formContext={{
-                        title: metadata?.title
+                        title: metadata?.title,
+                        metadata
                     }}
                     schema={schema}
                     widgets={widgets}