Rails渲染request.referer错误缺少模板

Question

1. Rails 4.2.1
   2. Bootstrap 3
   3. Simple_form

I have a three page user edit, (profile, account, settings) system.

app/view/users
   _form.html.erb
   edit.html.erb
   edit_account.html.erb
   edit_profile.html.erb
   edit_settings.html.erb
   new.html.erb
   show.html.erb

I will post the edit_profile.html.erb some proprietary info will be removed.

edit_profile.html.erb

<% provide(:title, "Edit Profile") %>

<div>
  <ul class="nav nav-tabs" role="tablist">
    <li role="presentation" class="active"><%= link_to 'Profile', "#profile", "aria-controls" => "profile", "role" => "tab", "data-toggle" => "tab" %></li>
    <li role="presentation"><%= link_to 'Bio', "#bio", "aria-controls" => "bio", "role" => "tab", "data-toggle" => "tab" %></li>
    <li role="presentation"><%= link_to 'My Websites', "#websites", "aria-controls" => "websites", "role" => "tab", "data-toggle" => "tab" %></li>
    <li role="presentation"><%= link_to 'Upload Photos', "#photos", "aria-controls" => "photos", "role" => "tab", "data-toggle" => "tab" %></li>
    <li role="presentation"><%= link_to 'Upload Videos', "#videos", "aria-controls" => "videos", "role" => "tab", "data-toggle" => "tab" %></li>
</ul>
    <%= render 'shared/error_messages' %>
<div class="tab-content">
    <div role="tabpanel" class="tab-pane active" id="profile">
        <div class="row">
            <div class="col-md-8">
                <%= simple_form_for @user, url: {action: "update"} do |f| %>
                    <div class="form-inputs form-inline well">
                        <legend>Tell us about yourself!</legend>
                        <%= f.input :birthdate, as: :date, 
                            start_year: Date.today.year - 18,
                            end_year: Date.today.year - 100,
                            order: [:month, :day, :year],
                            :label=> 'Date of Birth',
                            :required => true %>
                        <br>            
                        <%= f.input :age_valid, 
                            :as => :boolean, 
                            :label => false,
                            :checked_value => true,
                            :unchecked_value => false,
                            :inline_label => 'I am 18 years of age or older.' %>
                    </div>
                    <div class="form-actions">
                        <ul class="list-inline">
                            <li><%= f.button :submit, 'Update Profile', :class=> "btn btn-primary btn-sm" %></li>
                        </ul>   
                    </div>
                <% end %>     
            </div>
            <div class="col-md-4">
                <ul class="h6c">
                    <li>Q. How old do I need to be?</li>
                    <li>You need to be at least 18 years old.</li>
                </ul>   
            </div>  
        </div>
    </div>

    <div role="tabpanel" class="tab-pane" id="bio">
        <div class="row">
            <div class="col-md-8">
            </div>
            <div class="col-md-4">
            </div>
        </div>
    </div>

    <div role="tabpanel" class="tab-pane" id="websites">
        <div class="row">
            <div class="col-md-8">
            </div>
            <div class="col-md-4">
            </div>
        </div>
    </div>

    <div role="tabpanel" class="tab-pane" id="photos">
        <div class="row">
            <div class="col-md-8">
            </div>
            <div class="col-md-4">
            </div>
        </div>
    </div>

    <div role="tabpanel" class="tab-pane" id="videos">
        <div class="row">
            <div class="col-md-8">
            </div>
            <div class="col-md-4">
            </div>
        </div>
    </div>

</div>

The edit.html.erb is exactly the same except it has code from all of the other three files combined. There is nothing different in it.

In user.controller.rb

def edit
  @user = User.find(params[:id])
    case params[:form]
      when "profile"
        render "edit_profile"
      when "account"
        render "edit_account"
      when "settings"
        render "edit_settings"
      else
        render :action => :edit
  end
end

Each of the above pages has 4 or more tabs on it. each tab containing a part of the user forms. In my nav (not the tabs on the individual pages) I have link_to like this.

<li><%= link_to 'My Profile', current_user %></li>
<li><%= link_to 'Write' %></li>
<li><%= link_to 'Upload Photos', edit_user_path(current_user, :form => "profile") %></li>
<li><%= link_to 'Upload Videos', edit_user_path(current_user, :form => "profile") %></li>
<li><%= link_to 'Edit My Profile', edit_user_path(current_user, :form => "profile") %></li>
<li><%= link_to 'My Settings', edit_user_path(current_user, :form => "settings") %></li>
<li><%= link_to 'My Account', edit_user_path(current_user, :form => "account") %></li>

Then I have the update also in the user.controller.rb

def update
  @user = User.find(params[:id])
    if @user.update_attributes(user_params)
      flash[:success] = "Profile updated"
      redirect_to @user
  else
      render request.referer <---- this gives me template missing error.  
      **render "edit"** <---- this doesn't work either as it takes me to the wrong page
  end

end

If the user makes a mistake on one of the three pages it should render back to the referring form page with validation errors on it.

Address bar URLs. On profile edit page http://localhost:3000/users/2/edit?form=profile On missing template page http://localhost:3000/users/2

Full error. Missing template http://localhost:3000/users/2/edit?form=profile with {:locale=>[:en], :formats=>[:html], :variants=>[], :handlers=>[:erb, :builder, :raw, :ruby, :coffee, :jbuilder]}. Searched in: * "D:/Development/projects/#/app/views"

Answer 1

A note - you wouldn't have to do this if you had separate controllers for each of the edit modes (profile_controller, account_controller, settings_controller). Putting the conditional logic in the controller action doesn't get you much - instead you'd put the logic in routes and the controller actions stay simple.

So I did this by creating the three separate controllers

rails g controller account rails g controller setting rails g controller profile

In the routes.rb I added.

resources :profile, :only => [:edit, :update] 
resources :account, :only => [:edit, :update]
resources :settings, :only => [:edit, :update]

Then just copied the edit and update methods from the user controller to these new controllers. Created the edit.html.erb in each view directory and all is working the way it should.