ActionView :: MissingTemplate創建動作

Question

當我提交我的表單時，我收到一個錯誤：缺少模板letsgos /創建，應用程序/創建{:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby]}。

我不理解的是爲什麼當創建視圖爲from _form.html.erb時它正在尋找/創建。我不需要創建/創建文件。我在這裏錯過了什麼嗎？

letsgos_controller.rb：

before_action :signed_in_user, only: [:create, :destroy] 

    def create 
    @letsgo = current_user.letsgos.build(letsgo_params) 
    if @letsgo.save 
     flash[:success] = "Date posted!" 
     redirect_to root_url 
end 

    def destroy 
    @letsgo.destroy 
    redirect_to root_url 
    end 

users_controller：

def show 
    @user = User.find(params[:id]) 
    @letsgos = @user.letsgos.paginate(page: params[:page]) 
    @letsgo = current_user.letsgos.build if signed_in?' 
    end 

letsgo.rb：

belongs_to :user 
    default_scope -> { order('created_at DESC') } 
    validates :content, presence: true, length: { maximum: 360 } 
    validates :tag, presence: true 
    validates :user_id, presence: true 
end 

/users/show.html.erb：

<% if @user.letsgos.any? %> 
    Dates (<%= @user.letsgos.count %>) 
    <%= render @letsgos %> 
    <%= will_paginate @letsgos %> 
    <% end %> 

/letsgos/_form.html.erb

<%= form_for(@letsgo) do |f| %> 
    <div class="field"> 
     <%= f.text_area :content, placeholder: "Propose new date..." %> 
     </div> 
     <%= f.submit "Post", class: "btn btn-large btn-primary" %> 
     <% end %> 

/letsgos/home.html.erb：

<% if signed_in %> 
    <% render 'letsgos/form' %> 

Answer 1

裏面letsgoes_controller.rb你有以下創建方法：

def create 
    @letsgo = current_user.letsgos.build(letsgo_params) 
    if @letsgo.save 
     flash[:success] = "Date posted!" 
     redirect_to root_url 
    end 
    end 

根據該方法，如果@ letsgo.save返回false（由於驗證或其他），則該代碼將不會執行，這意味着rails會嘗試呈現與控制器同名的視圖文件行動 - create在這種情況下。因此，您需要考慮if的錯誤情況。像這樣的東西會工作：

def create 
    @letsgo = current_user.letsgos.build(letsgo_params) 
    if @letsgo.save 
     flash[:success] = "Date posted!" 
     redirect_to root_url 
    else 
     flash[:error] = "Date was not posted!" 
     redirect_to root_url 
    end 
    end