Update profiles/account view to display new username

app/controllers/profiles_controller.rb

@@ -47,11 +47,14 @@ class ProfilesController < Profiles::ApplicationController
   end
 
   def update_username
-    @user.update_attributes(username: user_params[:username])
-
-    respond_to do |format|
-      format.js
+    if @user.update_attributes(username: user_params[:username])
+      options = { notice: "Username successfully changed" }
+    else
+      message = @user.errors.full_messages.uniq.join('. ')
+      options = { alert: "Username change failed - #{message}" }
     end
+
+    redirect_back_or_default(default: { action: 'show' }, options: options)
   end
 
   private

app/views/profiles/accounts/show.html.haml

@@ -93,7 +93,7 @@
       %p
         Changing your username will change path to all personal projects!
     .col-lg-9
-      = form_for @user, url: update_username_profile_path, method: :put, remote: true, html: {class: "update-username"} do |f|
+      = form_for @user, url: update_username_profile_path, method: :put, html: {class: "update-username"} do |f|
         .form-group
           = f.label :username, "Path", class: "label-light"
           .input-group

app/views/profiles/update_username.js.haml

-- if @user.valid?
-  :plain
-    new Flash("Username successfully changed", "notice")
-- else
-  - error = @user.errors.full_messages.first
-  :plain
-    new Flash("Username change failed - #{escape_javascript error.html_safe}", "alert")

changelogs/unreleased/28655-current-path-text-is-not-updated-after-setting-the-new-username.yml

+---
+title: Update account view to display new username
+merge_request:
+author:

spec/features/profile_spec.rb

@@ -61,4 +61,18 @@ describe 'Profile account page', feature: true do
       expect(find('#incoming-email-token').value).not_to eq(previous_token)
     end
   end
+
+  describe 'when I change my username' do
+    before do
+      visit profile_account_path
+    end
+
+    it 'changes my username' do
+      fill_in 'user_username', with: 'new-username'
+
+      click_button('Update username')
+
+      expect(page).to have_content('new-username')
+    end
+  end
 end