ActiveRecord :: StatementInvalid AccountsController＃new

我不知道該怎麼做才能解決這個錯誤。只要按「創建帳戶」，我就會收到一條錯誤消息，說找不到表'帳戶'。ActiveRecord :: StatementInvalid AccountsController＃new

class AccountsController < ApplicationController 

    def new 
     @account = Account.new 
    end 

    def create 
    @account = Account.new(account_params) 
    if @account.save 
     redirect_to root_path, notice: 'Signed up successfully' 
    else 
     render action: 'new' 
    end 
    end 
private 
    def account_params 
    params.require(:account).permit(:subdomain) 
    end 
end

錯誤

ActiveRecord::StatementInvalid (Could not find table 'accounts'): 
app/controllers/accounts_controller.rb:4:in `new

找不到表 '賬戶'

Started GET "/accounts/new" for 127.0.0.1 at 2015-01-06 13:19:40 -0500 
Processing by AccountsController#new as HTML 
Completed 500 Internal Server Error in 4ms 

ActiveRecord::StatementInvalid (Could not find table 'accounts'): 
app/controllers/accounts_controller.rb:4:in `new' 


Rendered /home/shuabe/.rvm/gems/ruby-2.1.5/gems/web-console-2.0.0/lib/action_dispatch 
/templates/rescues/_source.erb (10.1ms) 
Rendered /home/shuabe/.rvm/gems/ruby-2.1.5/gems/web-console-2.0.0/lib/action_dispatch 
/templates/rescues/_trace.html.erb (4.3ms) 
Rendered /home/shuabe/.rvm/gems/ruby-2.1.5/gems/web-console-2.0.0/lib/action_dispatch 
/templates/rescues/_request_and_response.html.erb (1.3ms) 
Rendered /home/shuabe/.rvm/gems/ruby-2.1.5/gems/web-console-2.0.0/lib/action_dispatch 
/templates/rescues/_web_console.html.erb (1.6ms) 
Rendered /home/shuabe/.rvm/gems/ruby-2.1.5/gems/web-console-2.0.0/lib/action_dispatch 
/templates/rescues/diagnostics.html.erb within rescues/layout (51.2ms) 


Started GET "/accounts/new" for 127.0.0.1 at 2015-01-06 13:19:41 -0500 
Processing by AccountsController#new as HTML 
Completed 500 Internal Server Error in 1ms 

ActiveRecord::StatementInvalid (Could not find table 'accounts'): 
app/controllers/accounts_controller.rb:4:in `new' 


Rendered /home/shuabe/.rvm/gems/ruby-2.1.5/gems/web-console-2.0.0/lib/action_dispatch 
/templates/rescues/_source.erb (9.7ms) 
Rendered /home/shuabe/.rvm/gems/ruby-2.1.5/gems/web-console-2.0.0/lib/action_dispatch 
/templates/rescues/_trace.html.erb (4.0ms) 
Rendered /home/shuabe/.rvm/gems/ruby-2.1.5/gems/web-console-2.0.0/lib/action_dispatch 
/templates/rescues/_request_and_response.html.erb (1.3ms) 
Rendered /home/shuabe/.rvm/gems/ruby-2.1.5/gems/web-console-2.0.0/lib/action_dispatch 
/templates/rescues/_web_console.html.erb (1.4ms) 
Rendered /home/shuabe/.rvm/gems/ruby-2.1.5/gems/web-console-2.0.0/lib/action_dispatch 
/templates/rescues/diagnostics.html.erb within rescues/layout (38.4ms)

我不知道，但它有什麼關係遷移？我沒有產生任何遷移。如果是遷移，我如何爲賬戶控制器生成表格？

我不是目前使用的設計和我使用的唯一的寶石：基於您的評論

gem 'factory_girl_rails', '~> 4.5.0' 

gem 'rails', '4.2.0' 

gem 'sqlite3' 

gem 'sass-rails', '~> 5.0' 

gem 'uglifier', '>= 1.3.0' 

gem 'coffee-rails', '~> 4.1.0' 

gem 'jquery-rails' 

gem 'turbolinks' 

gem 'jbuilder', '~> 2.0' 

gem 'sdoc', '~> 0.4.0', group: :doc 



group :development, :test do 

    gem 'byebug' 

    gem 'web-console', '~> 2.0' 

    gem 'spring'

來源

2015-01-06 JamesRocky

檢查你的數據庫，你真的有一個名爲'accounts'的表嗎？在rails中，如果你使用其中一個生成器創建你的模型（例如'rails g model Account'），那麼你就可以進行遷移。如果您手動創建模型，那麼您已經爲自己做了一些額外的工作，並且需要[自己創建遷移]（http://stackoverflow.com/a/14452094/877472）。 –

您是否創建帳戶模型？你是否遷移了數據庫rake db：migrate？ –

@RailsOuter如果他們忘記遷移，他們實際上會得到一個不同的錯誤（通常是說「等待遷移」）。 –

，問題是你手動創建Account類/模型。這通常是一個非常糟糕的主意;不是致命的，而是有問題的，就像你所經歷的那樣。

通常，在Rails中，您可以使用其中一個生成器生成模型，例如rails g model Account [account fields]或rails g scaffold Account [account fields]。這樣做時，您會收到模型本身以及相應的遷移（以及您需要的所有測試文件）。既然你已經表明你手動創建模型文件，你有沒有這一點，並需要：

手動創建它：

運行以下命令：

rails g migration create_accounts [account fields]

其中[your account fields]將是任何必要的字段。例如，

... account_name:string account_status:string ...
OR，您的帳戶類，現在，使用一臺發電機以上

如果你是新來的Rails其再生，檢查出Getting Started guided ，這說明了我在這裏指的是什麼。

來源

2015-01-06 18:40:57

ActiveRecord :: StatementInvalid AccountsController＃new

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