Question

为Laravel Eloquent模型提供辅助方法的最佳位置在哪里？

目前我正在创建BaseModel，扩展Eloquent并在其中添加额外的功能。然后我的所有模型都延伸BaseModel。它有效..但它感觉不对。

例如，目前是我的BaseModel ......

class BaseModel extends Eloquent {

protected static function getEnumValues($table, $field)
{

    $test=DB::select(DB::raw("show columns from {$table} where field = '{$field}'"));

    preg_match('/^enum\((.*)\)$/', $test[0]->Type, $matches);
    foreach( explode(',', $matches[1]) as $value )
    {
        $enum[] = trim( $value, "'" );
    }

    return $enum;
}

protected static function convertDate($date)
{
    if(!isset($date)) return;
    $new_date = DateTime::createFromFormat('d/m/Y', $date);
    $formated_date = $new_date->format('Y-m-d');
    return $formated_date;
}

}

我在我的模特中使用它们......

    public static function boot()
    {
        parent::boot();

        static::creating(function($campaign)
        {
            $campaign->sale_date = static::convertDate($campaign->sale_date);
            $campaign->sold_date = static::convertDate($campaign->sold_date);
        });
    }

放置这样的模型助手方法的最佳位置在哪里？

反馈意见，谢谢！

Answer 1

您可以编写一个静态助手类，然后从模型中调用它。您可以参考my blog post了解如何添加自定义类。或者你总是可以使用psr-0或psr-4

来使用composer autoload

Answer 2

我所做的是...我在其中创建了一个 Helper Directory，并在其中创建了一个 GlobalHelper.php 文件。

tnow=datetime.datetime.now()
date_string = tnow.strftime('%Y-%m-%d')
print(f"datestring ={date_string}")
timeIntervals=["09:15:00","09:45:00","10:15:00","10:45:00","11:15:00","11:45:00","12:15:00","12:45:00","01:15:00","01:45:00","02:15:00","02:45:00","03:15:00","03:30:00"]
DatetimeIntervals=[]
now=datetime.datetime.now()
current_date=now.date()
for timeinterval in timeIntervals:
    DatetimeIntervals.append(datetime.datetime.strptime(date_string+' '+timeinterval,"%Y-%m-%d %H:%M:%S"))
    print(timeinterval)
for i,timeint in enumerate(DatetimeIntervals):
    print(timeint)
for i,timeint in enumerate(DatetimeIntervals):
    nexttime=timeint[i+1]
    while(datetime.datetime.now()>timeint and datetime.datetime.now()<nexttime):
        #here check if trade is active or not.  
        time.sleep(2)

在 GlobalHelper.php 中

        app/Helper/GlobalHelper.php

比在控制器或任何地方这样调用：

    namespace App\Helper;
    use App\Command;

    class GlobalHelper{
         public static function getCommands(){
              $getCommands = Command::all();
              return $getCommands;                        
       }
   }

Laravel 4：在哪里放置模型辅助方法？

2 个答案: