Question

所以我的应用程序中有一个评论模型，供用户留下电影评论。我正在为每部电影的“显示”视图中呈现一个新评论的表单。但是，当我尝试提交空白评论以检查页面上是否显示错误时，他们却没有。我能做错什么？

我的评论模型：

class Review < ActiveRecord::Base
  attr_accessible :content
  belongs_to :user
  belongs_to :movie

  validates :user_id, presence: true
  validates :movie_id, presence: true
  validates :content, presence: true, length: { maximum: 1000 }

end

我的评论控制器：

class ReviewsController < ApplicationController
  before_filter :signed_in_user, only: [:new, :create, :destroy]

  def new
  end

  def create

    #I'm doing this to get around the mass assignment error.

    movie_id = params[:review].delete(:movie_id)
    @review = current_user.reviews.build(params[:review])
    @review.movie_id = movie_id

    if @review.save
      flash[:success] = "Review created!"
      redirect_to movie_path(@review.movie)
    else
      redirect_to movie_path(@review.movie)
    end
  end

  def destroy
  end
end

我的表格：

<%= form_for(:review, url: reviews_path) do |f| %>

  <%= f.hidden_field :movie_id %>
  <div class="field">
    <%= f.text_area :content, placeholder: "Write a new review..." %>
  </div>
  <%= f.submit "Submit", class: "btn btn-large btn-primary" %>
<% end %>

Answer 1

当您从#create方法重定向时，您将丢失错误...更改为

if @review.save
  flash[:success] = "Review created!"
  redirect_to movie_path(@review.movie)
else
  render :new
end

为什么我的Active Record验证不能验证？

1 个答案: