fix: get label should use childrenKeyName for arrayTreeFilter when us… (#11311)

* fix: get label should use childrenKeyName for arrayTreeFilter when use customer fieldNames otherwise It can not get correct label array

* feat: add fieldNames test case in Cascader

* fix: cli fail

* fix: cil fail again

components/cascader/__tests__/index.test.js

@@ -190,4 +190,40 @@ describe('Cascader', () => {
     wrapper.setProps({ options: [options[0]] });
     expect(wrapper.find('.ant-cascader-menu-item').length).toBe(1);
   });
+
+  it('can use fieldNames', () => {
+    const customerOptions = [{
+      code: 'zhejiang',
+      name: 'Zhejiang',
+      items: [{
+        code: 'hangzhou',
+        name: 'Hangzhou',
+        items: [{
+          code: 'xihu',
+          name: 'West Lake',
+        }],
+      }],
+    }, {
+      code: 'jiangsu',
+      name: 'Jiangsu',
+      items: [{
+        code: 'nanjing',
+        name: 'Nanjing',
+        items: [{
+          code: 'zhonghuamen',
+          name: 'Zhong Hua Men',
+        }],
+      }],
+    }];
+    const wrapper = mount(<Cascader
+      options={customerOptions}
+      fieldNames={{
+        children: 'items',
+        label: 'name',
+        value: 'code',
+      }}
+    />);
+    wrapper.instance().handleChange(['zhejiang', 'hangzhou', 'xihu'], customerOptions);
+    expect(wrapper.find('.ant-cascader-picker-label').text().split('/').length).toBe(3);
+  });
 });

components/cascader/index.tsx

@@ -253,6 +253,7 @@ export default class Cascader extends React.Component<CascaderProps, CascaderSta
     const unwrappedValue = Array.isArray(value[0]) ? value[0] : value;
     const selectedOptions: CascaderOptionType[] = arrayTreeFilter(options,
       (o: CascaderOptionType, level: number) => o[names.value] === unwrappedValue[level],
+      { childrenKeyName: names.children },
     );
     const label = selectedOptions.map(o => o[names.label]);
     return displayRender(label, selectedOptions);