Question

我有一个允许多个条目进入数据库的表单。每个行都包含一个文件上载字段。

字段创建如下：

{{ Form::select('revision[]', ['0' => '0', '1' => '1', '2' => '2', '3' => '3', '4' => '4', '5' => '5', '6' => '6'], '0', ['class' => 'form-control artwork-revision']); }}
{{ Form::text('product[]', false, ['class' => 'form-control artwork-product', 'placeholder' => 'Please enter the product name']) }}
{{ Form::file('file[]', ['class' => 'artwork-file']) }}

我的控制器有一个foreach循环，可以将每一行输入数据库，但是当我运行它时，我收到以下错误消息：preg_replace(): Parameter mismatch, pattern is a string while replacement is an array

代码适用于单个文件上传（即没有foreach循环，只插入一行，没有方括号创建的字段）

如何解决此错误并将信息输入数据库？

这是我的控制器中的foreach循环和对象的var_dump。

控制器foreach循环：

$files = Input::file('file');

foreach($files as $file) {
    // it's a new artwork row
    $artwork = new Artwork;

    // get the vars
    $artwork->job_id = Input::get('job_id');
    $artwork->revision = Input::get('revision');
    $artwork->product = Input::get('product');

    // it's pending
    $artwork->status = 'P';

    // sort the filename...
    $filename = $file->getClientOriginalName();
    $file = $file->move(base_path() . '/public/artwork/' . Input::get('job_id'), $filename);

    // ...and put it in the $artwork object
    $artwork->filename = 'artwork/' . $artwork->job_id . '/' . $filename;

    // save it
    $artwork->save();
}

var_dump（$ artwork）输出 - 请注意，此处只显示一个图像文件名而不是两个：

object(Artwork)#243 (21) {
  ["dates":protected]=>
  array(1) {
    [0]=>
    string(10) "deleted_at"
  }
  ["fillable":protected]=>
  array(6) {
    [0]=>
    string(6) "job_id"
    [1]=>
    string(8) "filename"
    [2]=>
    string(6) "status"
    [3]=>
    string(8) "revision"
    [4]=>
    string(7) "product"
    [5]=>
    string(6) "reason"
  }
  ["table":protected]=>
  string(8) "artworks"
  ["connection":protected]=>
  NULL
  ["primaryKey":protected]=>
  string(2) "id"
  ["perPage":protected]=>
  int(15)
  ["incrementing"]=>
  bool(true)
  ["timestamps"]=>
  bool(true)
  ["attributes":protected]=>
  array(5) {
    ["job_id"]=>
    string(1) "5"
    ["revision"]=>
    array(2) {
      [0]=>
      string(1) "0"
      [1]=>
      string(1) "0"
    }
    ["product"]=>
    array(2) {
      [0]=>
      string(15) "Twist USB Drive"
      [1]=>
      string(19) "Eco Twist USB Drive"
    }
    ["status"]=>
    string(1) "P"
    ["filename"]=>
    string(24) "artwork/5/12345-test.jpg"
  }
  ["original":protected]=>
  array(0) {
  }
  ["relations":protected]=>
  array(0) {
  }
  ["hidden":protected]=>
  array(0) {
  }
  ["visible":protected]=>
  array(0) {
  }
  ["appends":protected]=>
  array(0) {
  }
  ["guarded":protected]=>
  array(1) {
    [0]=>
    string(1) "*"
  }
  ["touches":protected]=>
  array(0) {
  }
  ["observables":protected]=>
  array(0) {
  }
  ["with":protected]=>
  array(0) {
  }
  ["morphClass":protected]=>
  NULL
  ["exists"]=>
  bool(false)
  ["forceDeleting":protected]=>
  bool(false)
}

Answer 1

这是我的新店＆＃39;解决问题的控制器：

$artwork = new Artwork;

        // standard bits
        $artwork->job_id = Input::get('job_id');
        $artwork->status = 'P';

        // variables
        $artwork->revision = Input::get('revision');
        $artwork->product = Input::get('product');
        $artwork->file = Input::file('file');

        // count how many pieces of artwork are being uploaded (this could be any field)
        $count = count($artwork->revision);

        /* multi-file upload */
        $i = 0;

        // process each piece       
        foreach($artwork as $a) {
            while($count > $i) {
                // it's a new piece of artwork
                $a = new Artwork;

                // standard bits to object
                $a->job_id = $artwork->job_id;
                $a->status = $artwork->status;

                // revision and product name to object
                $a->revision = $artwork->revision[$i];
                $a->product = $artwork->product[$i];

                // get the file and move it
                $file = $artwork->file[$i];
                $filename = $file->getClientOriginalName();
                $movefile = $file->move(base_path() . '/public/artwork/' . $artwork->job_id, $filename);

                // filename to object
                $a->filename = $filename;

                // save the object to db
                $a->save();

                // add 1 to the count
                $i++;
            }
        }

        return Redirect::route('jobs.index');

Answer 2

我认为你甚至不能选择多个文件。将文件字段替换为多个属性设置为true的文件字段，这将允许一次选择多个文件并返回文件数组。

{{ Form::file('file[]', ['class' => 'artwork-file','multiple' => true]) }}

Laravel错误：＆＃39; preg_replace（）：参数不匹配＆＃39;在多个文件上传插入

2 个答案: