Add email language option to registration form

src/components/interface_language_switcher/interface_language_switcher.vue

@@ -37,7 +37,7 @@ export default {
       required: true
     },
     setLanguage: {
-      type: String,
+      type: Function,
       required: true
     }
   },

src/components/registration/registration.js

@@ -1,6 +1,8 @@
 import useVuelidate from '@vuelidate/core'
 import { required, requiredIf, sameAs } from '@vuelidate/validators'
 import { mapActions, mapState } from 'vuex'
+import InterfaceLanguageSwitcher from '../interface_language_switcher/interface_language_switcher.vue'
+import localeService from '../../services/locale/locale.service.js'
 
 const registration = {
   setup () { return { v$: useVuelidate() } },
@@ -11,10 +13,14 @@ const registration = {
       username: '',
       password: '',
       confirm: '',
-      reason: ''
+      reason: '',
+      language: '',
     },
     captcha: {}
   }),
+  components: {
+    InterfaceLanguageSwitcher
+  },
   validations () {
     return {
       user: {
@@ -26,7 +32,8 @@ const registration = {
           required,
           sameAs: sameAs(this.user.password)
         },
-        reason: { required: requiredIf(() => this.accountApprovalRequired) }
+        reason: { required: requiredIf(() => this.accountApprovalRequired) },
+        language: {}
       }
     }
   },
@@ -64,6 +71,9 @@ const registration = {
       this.user.captcha_solution = this.captcha.solution
       this.user.captcha_token = this.captcha.token
       this.user.captcha_answer_data = this.captcha.answer_data
+      if (this.user.language) {
+        this.user.language = localeService.internalToBackendLocale(this.user.language)
+      }
 
       this.v$.$touch()
 

src/components/registration/registration.vue

@@ -162,6 +162,18 @@
               </ul>
             </div>
 
+            <div
+              class="form-group"
+              :class="{ 'form-group--error': $v.user.language.$error }"
+            >
+              <interface-language-switcher
+                for="email-language"
+                :prompt-text="$t('registration.email_language')"
+                :language="$v.user.language.$model"
+                :set-language="val => $v.user.language.$model = val"
+              />
+            </div>
+
             <div
               v-if="accountApprovalRequired"
               class="form-group"