将输出从助手类写入控制台 [英] Write output to console from helper class

问题描述

我有一个运行帮助程序类的控制台命令，我想用$this->info()的输出内容从帮助程序类写入控制台.

I have a console command that runs a helper class and I want to write output with $this->info() to the console from the helper class.

我的代码如下:

App/Http/Console/Commands/SomeCommand.php

function handle(Helper $helper)
{
    return $helper->somefunction();
}

App/Http/SomeHelper.php

function somefunction()
{
    //some code
    $this->info('send to console');
}

有什么方法可以将帮助程序的输出写入控制台?

Is there any way to write the output to console from the helper?

推荐答案

我终于弄清楚了(在Laravel 5.6中工作)

在 SomeCommand 类的handle()函数中，添加$this->myHelper->setConsoleOutput($this->getOutput());.

I finally figured this out (works in Laravel 5.6)

In the handle() function of your SomeCommand class, add $this->myHelper->setConsoleOutput($this->getOutput());.

在您的帮助程序类中，添加:

In your helper class, add:

/**
 *
 * @var \Symfony\Component\Console\Style\OutputStyle 
 */
protected $consoleOutput;

/**
 * 
 * @param \Symfony\Component\Console\Style\OutputStyle $consoleOutput
 * @return $this
 */
public function setConsoleOutput($consoleOutput) {
    $this->consoleOutput = $consoleOutput;
    return $this;
}

/**
 * 
 * @param string $text
 * @return $this
 */
public function writeToOuput($text) {
    if ($this->consoleOutput) {
        $this->consoleOutput->writeln($text);
    }
    return $this;
}

/**
 * 
 * @param string $text
 * @return $this
 */
public function writeErrorToOuput($text) {
    if ($this->consoleOutput) {
        $style = new \Symfony\Component\Console\Formatter\OutputFormatterStyle('white', 'red', ['bold']); //white text on red background
        $this->consoleOutput->getFormatter()->setStyle('error', $style);
        $this->consoleOutput->writeln('<error>' . $text . '</error>');
    }
    return $this;
}

然后，在您的帮助程序类中的其他任何地方，您都可以使用:

Then, anywhere else in your helper class, you can use:

$this->writeToOuput('Here is a string that I want to show in the console.');

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