2019-01-03 13:24
浏览 31


I am trying to capture a CSV file in my Request within my controller. I have been reading the documentation on using the file system in Laravel but it seems to return NULL.

Inside of my controller:

public function index(Request $request)
        $file = $request->file('dataframe'); # This returns null every time

            $dataset = new CsvDataset($file, 1);
            $vectorizer = new TokenCountVectorizer(new WordTokenizer());
            $tfIdfTransformer = new TfIdfTransformer();

            $samples = [];
            foreach ($dataset->getSamples() as $sample)
                $samples[] = $sample[0];



            $dataset = new ArrayDataset($samples, $dataset->getTargets());
            $randomSplit = new StratifiedRandomSplit($dataset, 0.1);

            $classifier = new SVC(Kernel::RBF, 10000);
            $classifier->train($randomSplit->getTrainSamples(), $randomSplit->getTrainLabels());

            $predictedLabels = $classifier->predict($randomSplit->getTestSamples());

            $viewVar = (object) [
                'labels' => $predictedLabels,
                'score'  => Accuracy::score($randomSplit->getTestLabels(), $predictedLabels)

            return view('home')->with('prediction', $viewVar);


        return view('home');

Inside of my view:

<p>You can upload your dataframe below.</p>
    <form method='GET'>
        <input type='file' name='dataframe'>
        <button type='submit' name='upload'>Predict</button>
@if (isset($prediction))
    <p> Score: {{ $prediction->score }} </p>

When I var_dump() the request, I can see the languages.csv file I upload. How can I access this file within the $request variable?

  • 写回答
  • 关注问题
  • 收藏
  • 邀请回答

1条回答 默认 最新

  • duanan1946 2019-01-03 13:28

    If you want to submit a document, you must use POST and enctype :

    <form method='POST' enctype="multipart/form-data">
        <input type='file' name='dataframe'>
        <button type='submit' name='upload'>Predict</button>
    打赏 评论

相关推荐 更多相似问题