谢谢你啊
在一般编程中，我们要扩展一个基础类，我们需要进行继承才能扩充。然而Laravel利用PHP的特性，编写了一套叫做Macroable的Traits，这样，凡是使用Macroable的类，都是可以使用这个方法扩充的。
邮件发送动态设置
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| \Mail::macro('setConfig', function (string $key, string $domain) {
$transport = $this->getSwiftMailer()->getTransport();
$transport->setKey($key);
$transport->setDomain($domain);
return $this;
});
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使用
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| public function build()
{
$to = 'lnmput@gmail.com';
$mailgunConfig = 'erp.template.'.$mailTplDir.'.mailgun.';
\Mail::setConfig(config($mailgunConfig.'secret'), config($mailgunConfig.'domain'));
return $this->to($to)->subject($subject)->from($mailFrom, $mailFromName)->view($view);
}
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集合转小写
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| Collection::macro('uppercase', function () {
return collect($this->items)->map(function ($item) {
return strtoupper($item);
});
});
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使用
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| collect(["hello", "world"])->uppercase();
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自定义响应
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| \Response::macro('xml', function(array $vars, $status = 200, array $header = [], $xml = null)
{
if (is_null($xml)) {
$xml = new \SimpleXMLElement('<?xml version="1.0" encoding="UTF-8"?><response/>');
}
foreach ($vars as $key => $value) {
if (is_array($value)) {
\Response::xml($value, $status, $header, $xml->addChild($key));
} else {
$xml->addChild($key, $value);
}
}
if (empty($header)) {
$header['Content-Type'] = 'application/xml';
}
return \Response::make($xml->asXML(), $status, $header);
});
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使用
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| $data = ['status' => 'OK', 'data' => [
'name' => 'yangguoqi',
'age' => 27
]];
return Response::xml($data);
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统计字符串中单词数量
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| use Illuminate\Support\Str;
Str::macro('countWords', function($value)
{
return str_word_count($value);
});
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使用
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| $value = Str::countWords('This is test');
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字符串CSV转array
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| Str::macro('csvToArray', function ($string)
{
return array_filter(array_map('trim', str_getcsv($string)));
});
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使用
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| $string = "some, crazy, , , , mixed, bag, of , comma-separated values, , ,";
$array = \Illuminate\Support\Str::csvToArray($string);
dd($array);
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模型是否分页
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| Builder::macro('paginateIf', function($callback = true) {
if($callback) {
return $this->paginate();
}
return $this->get();
});
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使用
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| $data = Model::oldest()->paginateIf($request->has('page'));
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哪些类可以使用marco
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| Illuminate\Database\Query\Builder
Illuminate\Database\Eloquent\Builder
Illuminate\Database\Eloquent\Relations\Relation
Illuminate\Http\Request
Illuminate\Http\RedirectResponse
Illuminate\Http\UploadedFile
Illuminate\Routing\Router
Illuminate\Routing\ResponseFactory
Illuminate\Routing\UrlGenerator
Illuminate\Support\Arr
Illuminate\Support\Str
Illuminate\Support\Collection
Illuminate\Cache\Repository
Illuminate\Console\Scheduling\Event
Illuminate\Filesystem\Filesystem
Illuminate\Foundation\Testing\TestResponse
Illuminate\Translation\Translator
Illuminate\Validation\Rule
Mail
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等等,使用了Marcoable的Traits，如果是自己编写的类，使用了Marcoable，也可以这样扩充使用（写Laravel开源库的时候）
https://laravel-tricks.com/tricks/responsexml-macro