失敗/錯誤：click_button「添加電影」ActionController :: ParameterMissing：參數丟失或值爲空：電影

我一直在尋找其他答案，我仍然得到這個錯誤與params失蹤。我猜這是一個回形針問題，但通過搜索文檔後，我找不到解決此問題的任何內容。失敗/錯誤：click_button「添加電影」ActionController :: ParameterMissing：參數丟失或值爲空：電影

我的特色規格

scenario "An Admin creates a new movie" do 
     visit "/" 
    click_link "Add New Movie"``` 

    fill_in "Title", with: "Creating first movie" 
    fill_in "Synopsis", with: "Lorem Ipsum" 
    fill_in "Year Released", with: "Date" 
    click_button "Add Movie" 

    expect(page).to have_content("Movie has been created") 
    expect(page.current_path).to eq(root_path) 
    expect(page).to have_content("Created by: #{@kyle.email}")``` 

end

我的電影模型

class Movie < ApplicationRecord 
    has_many :comments 
    belongs_to :admin 

    validates :title, presence: true 
    validates :synopsis, presence: true 
    validates :year_released, presence: true 

    has_attached_file :photo, styles: { medium: "300x200>", thumb: "100x100>" },   default_url: "/images/:style/missing.png"

validates_attachment_file_name：照片，匹配：[？/ PNG \ Z /，/ JPE克\ Z /]```

我的控制器

def update 
    if @movie.update(movie_params) 
    flash[:success] = "Movie has been updated" 
    redirect_to @movie 
    else 
    flash.now[:danger] = "Movie has not been updated" 
    render :edit 
    end 
end 

private 

def movie_params 
    params.require(:movie).permit(:title, :synopsis, :year_released, :photo) 
end

我_form.html.erb

<div class="form-group"> 
    <div class='control-label col-md-3'> 
    <%= f.label :photo %> 
    </div> 
    <div class='col-md-10'> 
    <%= f.file_field :photo, class: "btn btn-primary btn-sl pull-left" %> 
    </div> 

<div class='form-group'> 
<div class='col-md-offset-1 col-md-11'> 
    <%= f.submit "Add Movie", class: "btn btn-primary btn-lg pull-right" %> 
</div>

錯誤

Failure/Error: click_button "Add Movie" 
ActionController::ParameterMissing: 
param is missing or the value is empty: movie```

我Github如果neccessary。

來源

2016-04-28 kyle

如何是你的form_for像 – uzaif

'''<％=的form_for（@movie）％> <％= f.label：標題％> <％= f.text_field：標題，類：「形式控制'，佔位符：'電影標題'，自動對焦：true％> <％= f.label：synopsis％> <％= f.text_area：synopsis，rows：10，class：'form-control'，佔位符： '簡介'％> <％= f.label：photo％> <％= f.file_field：photo，class：「btn btn-primary btn-sl pull-left」％>''' – kyle

更新時發生錯誤電影？ – uzaif

我認爲這是因爲您在strong_params中使用require。

我改變你的代碼

def movie_params 
    params.fetch(:movie, {}).permit(:title, :synopsis, :year_released, :photo) 
end

，並通過測試。

[[email protected] ~/temp/moviesmoviesmovies]$ git:(development) rspec spec/features/creating_movies_spec.rb 
DEPRECATION WARNING: use_transactional_fixtures= is deprecated and will be removed from Rails 5.1 (use use_transactional_tests= instead). (called from <top (required)> at /Users/retgoat/temp/moviesmoviesmovies/spec/features/creating_movies_spec.rb:3) 
.. 

Finished in 0.73751 seconds (files took 1.91 seconds to load) 
2 examples, 0 failures

另外我在瀏覽器中試過所有按預期去 - 我看到驗證錯誤。

文檔是here

而且that職位是有益的。

來源

2016-04-28 02:28:25 retgoat

太棒了！非常感謝你！ retgoat – kyle

歡迎，@kyle :) – retgoat

失敗/錯誤：click_button「添加電影」ActionController :: ParameterMissing：參數丟失或值爲空：電影

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