创建和使用 Laravel 4 命令

Creating and using Laravel 4 commands

提问by John Mellor

EDIT: Figured out where I was going wrong and placed an answer at the end

编辑：找出我出错的地方并在最后给出答案

I'm trying to create a Laravel Command, I can see it's changed considerably from "tasks" in Laravel 3. However I can't seem to get it to run. These are the steps I have taken:

我正在尝试创建一个 Laravel 命令，我可以看到它与 Laravel 3 中的“任务”相比发生了很大变化。但是我似乎无法让它运行。这些是我采取的步骤：

php artisan command:make Import

php artisan 命令：make 导入

Returns

退货

Command created successfully

命令创建成功

The file in the commands directory is then created and I have slightly modified to return "Hello World" like so:

然后创建命令目录中的文件，我稍作修改以返回“Hello World”，如下所示：

use Illuminate\Console\Command;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputArgument;

class Import extends Command {

    /**
     * The console command name.
     *
     * @var string
     */
    protected $name = 'command:import';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Command description.';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return void
     */
    public function fire()
    {
        return 'Hello World';
    }

    /**
     * Get the console command arguments.
     *
     * @return array
     */
    protected function getArguments()
    {
        return array(
            array('example', InputArgument::REQUIRED, 'An example argument.'),
        );
    }

    /**
     * Get the console command options.
     *
     * @return array
     */
    protected function getOptions()
    {
        return array(
            array('example', null, InputOption::VALUE_OPTIONAL, 'An example option.', null),
        );
    }

}

However when I try and run the command like so:

但是，当我尝试像这样运行命令时：

php artisan Import

php工匠导入

I get the following error:

我收到以下错误：

[InvalidArgumentException] Command "Import" is not defined.

[InvalidArgumentException] 命令“导入”未定义。

I have tried it with and without capitals as well as naming it "ImportCommand" since the documentation names its command "FooCommand" but with no luck.

我尝试过使用和不使用大写字母以及将其命名为“ImportCommand”，因为文档将其命令命名为“FooCommand”，但没有运气。

Any help would be most appreciated.

非常感激任何的帮助。

回答by John Mellor

Actually figured this out. Further down the documentation it states that you must register your command in "app/start/artisan.php" using the following method:

其实想通了这一点。在文档的进一步下方，它指出您必须使用以下方法在“app/start/artisan.php”中注册您的命令：

Artisan::add(new import);

Also the name you give in your command class is significant as that's what you need to use to call it. So I should have actually been calling it like so:

此外，您在命令类中给出的名称也很重要，因为您需要使用它来调用它。所以我实际上应该这样称呼它：

php artisan command:import

One final thing. What the fire() returns is unimportant, to return strings you must echo them.

最后一件事。fire() 返回的内容并不重要，要返回字符串，您必须回显它们。

回答by user3228017

try this.

尝试这个。

protected function getArguments()
{
    return [];
}

protected function getOptions()
{
    return [];
} 

also add this in /app/start/artisan.php

也加入这个 /app/start/artisan.php

Artisan::add(new ParseCommand);

then Run Command on Root directory

然后在根目录上运行命令

./artisan command:import; 

回答by totymedli

In newer Laravel versions there isn't an importcommand. You just have to do the following two thing:

在较新的 Laravel 版本中，没有import命令。你只需要做以下两件事：

1. Register your command in app/start/artisan.php:

   Artisan::add(new Import);
   

2. Run the command in Artisan:

   php artisan command:name Import
   

1. 在app/start/artisan.php以下位置注册您的命令：

   Artisan::add(new Import);
   

2. 在 Artisan 中运行命令：

   php artisan command:name Import
   

回答by yassine

there's a mis-understanding on Artisan commands because of the used wording.

由于使用的措辞，对 Artisan 命令存在误解。

In your case you choose : 'command:import' as a name of one of your 'Import' commands.

在您的情况下，您选择 : 'command:import' 作为您的“导入”命令之一的名称。

Think about it as an object, with methods.

把它想象成一个对象，有方法。

If "Import" has many commands:

如果“导入”有很多命令：

you can use as command name > protected $name = 'import:csv';

您可以将其用作命令名称 > protected $name = 'import:csv';

another command would be > protected $name = 'import:txt';

另一个命令是 > protected $name = 'import:txt';

and > protected $name = 'import:contacts';

> 受保护的 $name = 'import:contacts';

so your commands with "Import" nature are better organised.

所以你的具有“导入”性质的命令更有条理。

and when you request , you see your commands organised as a single entity.

当您请求时，您会看到您的命令被组织为单个实体。

If not,

如果不，

and you have only a single command then give your command a single clear name. protected $name = 'import';

并且您只有一个命令，然后为您的命令指定一个清晰的名称。受保护的 $name = 'import';