fix:change language after switching language login.

src/locales/en/messages.json

@@ -7,4 +7,4 @@
   "Sign in": "Sign in",
   "Switch Theme": "Switch Theme",
   "Username": "Username"
-}
+}

src/pages/login/index.js

@@ -5,6 +5,7 @@ import { Button, Row, Form, Icon, Input } from 'antd'
 import router from 'umi/router'
 import { GlobalFooter } from 'ant-design-pro'
 import { Trans, withI18n } from '@lingui/react'
+import { stringify } from 'qs'
 import config from 'utils/config'
 
 import styles from './index.less'
@@ -26,7 +27,7 @@ class Login extends PureComponent {
   }
 
   render() {
-    const { loading, form, i18n } = this.props
+    const { loading, form, i18n, location } = this.props
     const { getFieldDecorator } = form
 
     const footerLinks = [
@@ -38,11 +39,19 @@ class Login extends PureComponent {
       },
       {
         key: 'English',
-        title: <span onClick={() => router.push('/en/login')}>English</span>,
+        title: (
+          <span onClick={() => router.push(`/en/login${location.search}`)}>
+            English
+          </span>
+        ),
       },
       {
         key: 'Chinese',
-        title: <span onClick={() => router.push('/zh/login')}>中文</span>,
+        title: (
+          <span onClick={() => router.push(`/zh/login${location.search}`)}>
+            中文
+          </span>
+        ),
       },
     ]
 

src/pages/login/model.js

@@ -1,4 +1,4 @@
-import { router } from 'utils'
+import { router, pathMatchRegexp } from 'utils'
 import { loginUser } from 'api'
 
 export default {
@@ -13,7 +13,7 @@ export default {
       if (data.success) {
         const { from } = locationQuery
         yield put({ type: 'app/query' })
-        if (from && from !== '/login') {
+        if (!pathMatchRegexp('/login', from)) {
           router.push(from)
         } else {
           router.push('/dashboard')

src/utils/index.js

@@ -71,6 +71,7 @@ export const langFromPath = curry(
    * @return  {string}    Return the queryed language.
    */
   (languages, defaultLanguage, pathname) => {
+    console.log(pathname)
     for (const item of languages) {
       if (pathname.startsWith(`/${item}/`)) {
         return item
@@ -101,15 +102,15 @@ export const deLangPrefix = curry(
   }
 )(languages)
 
-export const addLangPrefix = curry(
-  /**
-   * Add the language prefix in pathname.
-   * @param   {array}     prefix     Specify the language you need to add.
-   * @param   {string}    pathname   Add the language prefix in the pathname.
-   * @return  {string}    Return the pathname after adding the language prefix.
-   */
-  (prefix, pathname) => `/${prefix}${deLangPrefix(pathname)}`
-)(langFromPath(window.location.pathname))
+/**
+ * Add the language prefix in pathname.
+ * @param   {string}    pathname   Add the language prefix in the pathname.
+ * @return  {string}    Return the pathname after adding the language prefix.
+ */
+export const addLangPrefix = pathname => {
+  const prefix = langFromPath(window.location.pathname)
+  return `/${prefix}${deLangPrefix(pathname)}`
+}
 
 const routerAddLangPrefix = params => {
   if (isString(params)) {