How to prevent same file upload in laravel

Question

I am new to laravel. I am trying to upload multiple files, but when I try to upload the same filenames at the same time, it crashes. how to prevent uploading same image names.

What I have tried is:

Html code:

<form method="POST" action="/listingSave" enctype="multipart/form-data" class="sellingFormSave" id="sellingFormSave" onsubmit="validate();">
    <div class="row">
        <div class="col-12 section_title-js">
            <h3></h3>
        </div>
        <div class="form-group col-md-12">
            <input id="demo" type="file" name="files" accept=".jpg, .png, image/jpeg, image/png" multiple>

        </div>
    </div>
    <button type="submit" class="btn" id="submit">
            Save
    </button>
</form>

Controller.php

public function listingSave(Request $request) {
   if(array_key_exists('image', $request->all())){
        
      $imageName = $request->imageName;
     
      $image = $request->image;
        foreach ($image as $key => $value) {         
          $image_name = date('mdYhis').'_'.$imageName[$key]; 
           
          $imgdata = base64_decode($value);
          $myOutput = public_path().'/app/default/files-module/local/images/'.$image_name;
          $ifp = fopen( $myOutput, 'wb' ); 
          fwrite( $ifp, $imgdata );
          fclose( $ifp );    
          $imageInfo = getimagesize($myOutput);
          $files = FileModel::updateOrCreate(['name'=>$image_name],[
              // 'sort_order'=>$truckian->id+$key,
              'sort_order'=>0+$key,
              'created_at'=>date('Y-m-d H:i:s'),
              'updated_at'=>date('Y-m-d H:i:s'),
              // 'created_by_id'=>Auth::user()->id,
              'created_by_id'=>0,
              'disk_id'=>1,
              'folder_id'=>1,
              'extension'=>str_replace('image/', '', $imageInfo['mime']),
              'size'=>$imageInfo[0]*$imageInfo[1],
              'mime_type'=>$imageInfo['mime'],
              "entry_type" => "Anomaly\Streams\Platform\Model\Files\FilesImagesEntryModel",
              "height" => $imageInfo[1],
              "width" => $imageInfo[0],
            ]);
          // DB::table('truckian_products_image')->insert(['entry_id'=>$truckian->id,'file_id'=>$files->id,'sort_order'=>$key+1]);
          DB::table('truckian_products_image')->insert(['entry_id'=>$p_id,'file_id'=>$files->id,'sort_order'=>$key+1]);
        }
        foreach($available as $key => $value)
        DB::insert('insert into default_truckian_mileage_gap(mileage_gap,number_of_products,truck_id)values (?,  ?, ?)',[$key,$value,$p_id]);
    }


}

Whenever I execute same file names, it crashes. How to fix this.

@Dula Yes I am getting like this . SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '40-8897' for key 'c72333b5ba020bf52db5233c89a40c13' (SQL: insert into default_truckian_products_image (entry_id, file_id, sort_order) values (40, 8897, 2)) — CodeHunt
– CodeHunt, Commented Nov 21, 2021 at 23:30
I think the error is generated from the place where you are trying to insert data to default_truckian_products_image table. — Dula
– Dula, Commented Nov 22, 2021 at 0:31
@Dula No, it has no error, when unique names are uploading, but when I try to upload same images , this error occur. — CodeHunt
– CodeHunt, Commented Nov 22, 2021 at 2:47
there may be constrain added for id and file name in you DB. You should remove it from table schema OR try to append some random name to file name — Pravin
– Pravin, Commented Nov 22, 2021 at 10:16

Leena Patel · Accepted Answer · 2021-11-22 06:29:07Z

0

Try to use incrementor variable like below in defining file name in foreach loop

$i = 0;
foreach ($image as $key => $value) {         
      $image_name = date('mdYhis').'_'.$i.'_'.$imageName[$key];
      //other code
      $i++;
}

It will create different names for file everytime even if its uploaded at same time

answered Nov 22, 2021 at 6:29

Leena Patel

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