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我正在建立一個視頻網站,當我嘗試添加一個標題到我的靜態頁面,用戶可以觀看視頻:「未定義的方法`標題爲零:NilClass」在Ruby on Rails中的錯誤
watch.html.erb
<div class="panel panel-default">
<div class="panel-body">
<div class="col-md-4">
<p>You're watching:</p>
<h1><%= @movie.title %></h1>
</div>
</div>
</div>
這是我的movies_controller.rb文件:
class MoviesController < ApplicationController
before_action :set_movie, only: [:show, :edit, :update, :destroy]
before_action :authenticate_user!, except: [:index, :show]
def watch
end
def index
@movies = Movie.all
end
def show
@reviews = Review.where(movie_id: @movie.id).order("created_at DESC")
end
def new
@movie = current_user.movies.build
end
def edit
end
def create
@movie = current_user.movies.build(movie_params)
respond_to do |format|
if @movie.save
format.html { redirect_to @movie, notice: 'Movie was successfully created.' }
format.json { render :show, status: :created, location: @movie }
else
format.html { render :new }
format.json { render json: @movie.errors, status: :unprocessable_entity }
end
end
end
def update
respond_to do |format|
if @movie.update(movie_params)
format.html { redirect_to @movie, notice: 'Movie was successfully updated.' }
format.json { render :show, status: :ok, location: @movie }
else
format.html { render :edit }
format.json { render json: @movie.errors, status: :unprocessable_entity }
end
end
end
def destroy
@movie.destroy
respond_to do |format|
format.html { redirect_to movies_url, notice: 'Movie was successfully destroyed.' }
format.json { head :no_content }
end
end
def set_movie
@movie = Movie.find(params[:id])
end
private
def movie_params
params.require(:movie).permit(:title, :description, :movie_length, :director, :rating, :image)
end
end
我的表的方法是在我的控制文件,我上面的 「私有」被告知是主要原因之一這個錯誤顯示出來。但每次我嘗試去頁面,錯誤仍然出現。有人能告訴我我做錯了什麼嗎?