在 laravel 的表单更新中获得 302

Question

我遇到了 302 重定向问题，同时 post 正在输入数据以更新所有已成功更新的内容，但我得到 302 并且我的页面被重定向的图像除外。

这是我的表格 blade 代码：

{!! Form::model($post, ['method' => 'PATCH','route' => ['posts.update', $post->id],'data-parsley-validate' => '','class' => 'form-horizontal','files'=>true,'name'=>'updateabout']) !!}

<div class="col-md-8">

    <input type="hidden" name="csrf_test_name" value="{!! csrf_token() !!}">
    <div class="form-group">
        <label class="col-md-2 control-label"> Title : </label>
        <div class="col-md-10">
            <input class="form-control " name="title" type="text" value="{{$post->title}}" id="title">
        </div>
    </div>

    <div class="form-group">
        <label class="col-md-2 control-label">Slug:</label>
        <div class="col-md-10">
            <input class="form-control" name="slug" type="text" value="{{$post->slug}}" id="slug">
        </div>
    </div>
    <div class="form-group">
        <label class="col-md-2 control-label">Category:</label>
        <div class="col-md-10">
            {{ Form::select('category_id', $categories, null, ['class' => 'form-control']) }}

        </div>
    </div>
    <div class="form-group">
        <label class="col-md-2 control-label">Tags:</label>
        <div class="col-md-10">
            {{ Form::select('tags[]', $tags, null, ['class' => 'form-control select2-multi', 'multiple' => 'multiple']) }}
        </div>
    </div>


    <div class="form-group">
        <label class="col-md-2 control-label">Short-Description:</label>
        <div class="col-md-10">
            <textarea name="short_description" class="form-control" maxlength="140" rows="7" required
                      id="shortdesc">{{$post->short_description}}</textarea>
            <script src="{{ asset("/public/admin/ckeditor/ckeditor.js") }}"></script>
            <script>
                CKEDITOR.replace('shortdesc', {
                    height: 100,
                    toolbar: 'Custom', //makes all editors use this toolbar
                    toolbarStartupExpanded: false,
                    toolbarCanCollapse: false,
                    toolbar_Custom: [] //define an empty array or whatever buttons you want.
                });
            </script>
        </div>
    </div>

    <div class="form-group">
        <label class="col-md-2 control-label">Date:</label>
        <div class="col-md-10">
            {{ Form::text('date', null, ['class' => 'form-control','id'=>'date']) }}
        </div>
        <script type="text/javascript">
            $(document).ready(function () {
                $(function () {
                    $('#date').datepicker({format: 'HH:mm:ss'});
                })
            });
        </script>
    </div>


    <div class="form-group">
        <label class="col-md-2 control-label"> Image: </label>
        <div class="col-md-10">
            <img src="{{asset($post->image)}}" height="200" width="579">
            <input type="hidden" name="imageold" value="{{$post->image}}">
        </div>
    </div>
    <div class="form-group">
        <label class="col-md-2 control-label">Change Image: </label>
        <div class="col-md-10">
            <input type="file" name="imagemain" id="file">
        </div>
    </div>


    <div class="form-group">
        <label class="col-md-2 control-label">Description:</label>
        <div class="col-md-10">
            {{ Form::textarea('description', null, ['class' => 'form-control','id'=>'long_description']) }}
            <script src="//cdn.tinymce.com/4/tinymce.min.js"></script>
            <script>
                tinymce.init({
                    selector: '#long_description',
                    convert_urls: false,
                    statusbar: false,
                    height: '300',
                    plugins: 'image code print preview fullpage  searchreplace autolink directionality  visualblocks visualchars fullscreen image link    table charmap hr pagebreak nonbreaking  toc insertdatetime advlist lists textcolor wordcount   imagetools    contextmenu colorpicker textpattern media ',
                    toolbar: 'formatselect | bold italic strikethrough forecolor backcolor | link | alignleft aligncenter alignright alignjustify  | numlist bullist outdent indent  | removeformat |undo redo | image code| link fontsizeselect  | ',

                    image_title: true,
                    automatic_uploads: true,
                    images_upload_url: '{{url("/admin/upload")}}',
                    file_picker_types: 'image',
                    file_picker_callback: function (cb, value, meta) {

                        var input = document.createElement('input');
                        input.setAttribute('type', 'file');
                        input.setAttribute('accept', 'image/*');

                        input.onchange = function () {
                            var file = this.files[0];

                            var reader = new FileReader();
                            reader.readAsDataURL(file);
                            reader.onload = function () {
                                var id = 'blobid' + (new Date()).getTime();
                                var blobCache = tinymce.activeEditor.editorUpload.blobCache;
                                var base64 = reader.result.split(',')[1];
                                var blobInfo = blobCache.create(id, file, base64);
                                blobCache.add(blobInfo);
                                cb(blobInfo.blobUri(), {title: file.name});
                            };
                        };
                        input.click();
                    }
                });
            </script>
        </div>
    </div>

    <div class="form-group">
        <label class="col-md-2 control-label">Meta-title:</label>
        <div class="col-md-10">
            {{ Form::textarea('meta_title', null, ['class' => 'form-control','id'=>'meta-title']) }}
            <script>
                CKEDITOR.replace('meta-title', {
                    height: 100,
                    toolbar: 'Custom', //makes all editors use this toolbar
                    toolbarStartupExpanded: false,
                    toolbarCanCollapse: false,
                    toolbar_Custom: [] //define an empty array or whatever buttons you want.
                });
            </script>
        </div>
    </div>

    <div class="form-group">
        <label class="col-md-2 control-label">Meta-Keywords:</label>
        <div class="col-md-10">
            {{ Form::textarea('meta_keywords', null, ['class' => 'form-control','id'=>'meta-keywords']) }}
            <script src="{{ asset("/public/admin/ckeditor/ckeditor.js") }}"></script>
            <script>
                CKEDITOR.replace('meta-keywords', {
                    height: 100,
                    toolbar: 'Custom', //makes all editors use this toolbar
                    toolbarStartupExpanded: false,
                    toolbarCanCollapse: false,
                    toolbar_Custom: [] //define an empty array or whatever buttons you want.
                });
            </script>

        </div>
    </div>

    <div class="form-group">
        <label class="col-md-2 control-label">Posted By:</label>
        <div class="col-md-10">
            {{ Form::text('authorname', null, ['class' => 'form-control']) }}
        </div>
    </div>

    <hr>

    <br>

    <div class="form-group row">
        <div class="col-sm-offset-3 col-sm-6">
            {{ Form::submit('Update Post', array('class' => 'btn btn-success')) }}
            <a type="button" id="addslide" class="btn btn-danger">Cancel</a>
        </div>
    </div>
</div>


{!! Form::close() !!}

和我的控制器：

public function update(Request $request, $id)
{
    // Validate the data
    $postdata = Post::find($id);

    //print_r($post);

    if ($request->input('slug') == $postdata->slug) {
        //echo 'slug match';
        //exit();
        $this->validate($request, [
            'title'            => 'required|max:255',
            'category_id'      => 'required|integer',
            'long_description' => 'required',
        ]);
    } else {
        //echo 'new slug matching';
        //exit();
        $this->validate($request, [
            'title'            => 'required|max:255',
            'slug'             => 'required|alpha_dash|min:5|max:255|unique:posts,slug',
            'category_id'      => 'required|integer',
            'long_description' => 'required',
        ]);
    }

    if ($request->hasFile('imagemain')) {

        //echo 'request has old file to unlink ';
        // exit();
        //unlink($request->get('image'));
        // Get filename with the extension
        $filenameWithExt = $request->file('imagemain')->getClientOriginalName();
        // Get just filename
        $filename = pathinfo($filenameWithExt, PATHINFO_FILENAME);
        // Get just ext
        $extension = $request->file('imagemain')->getClientOriginalExtension();
        $fileNameToStore = $filename . '_' . time() . '.' . $extension;
        // Upload Image
        $path = $request->file('imagemain')->move('public/blogsimages', $fileNameToStore);
        // Filename to store
        echo $fileNameToStore = $path;
    } else {
        $fileNameToStore = $request->input('imageold');
        // exit();
    }

    // Save the data to the database
    $post = Post::find($id);

    $post->title = $request->input('title');
    $post->slug = $request->input('slug');
    $post->category_id = $request->input('category_id');
    $post->description = $request->input('description');
    $post->short_description = $request->input('short_description');
    $post->date = $request->input('date');
    $post->image = $fileNameToStore;
    $post->meta_title = $request->input('meta_title');
    $post->meta_keywords = $request->input('meta_keywords');
    $post->authorname = $request->input('authorname');

    $post->save();

    if (isset($request->tags)) {
        $post->tags()->sync($request->tags);
    } else {
        $post->tags()->sync([]);
    }

    // set flash data with success message
    Session::flash('success', 'This post was successfully saved.');

    // redirect with flash data to posts.show
    return redirect()->route('posts.show', $post->id);
}

当我 post 数据时，除了显示 302 的图像和表格外，所有内容都根据要求进行了更新，此处是屏幕截图：我的路线是：Route::resource('posts', 'PostController');

Answer 1

302状态码含义：

来自Here：

The HyperText Transfer Protocol (HTTP) 302 Found redirect status response code indicates that the resource requested has been temporarily moved to the URL given by the Location header

所以在你的控制器的最后一行你正在执行重定向：

return redirect()->route('posts.show', $post->id);

此外，当 Laravel 验证失败时，它会自动重定向。

Answer 2

我认为验证脚本有错误请尝试代码

public function update(Request $request, $id)
{
    // Validate the data
    $postdata = Post::find($id);

    //WITHOUT VALIDATION



    if ($request->hasFile('imagemain')) {

        //echo 'request has old file to unlink ';
        // exit();
        //unlink($request->get('image'));
        // Get filename with the extension
        $filenameWithExt = $request->file('imagemain')->getClientOriginalName();
        // Get just filename
        $filename = pathinfo($filenameWithExt, PATHINFO_FILENAME);
        // Get just ext
        $extension = $request->file('imagemain')->getClientOriginalExtension();
        $fileNameToStore = $filename . '_' . time() . '.' . $extension;
        // Upload Image
        $path = $request->file('imagemain')->move('public/blogsimages', $fileNameToStore);
        // Filename to store
        echo $fileNameToStore = $path;
    } else {
        $fileNameToStore = $request->input('imageold');
        // exit();
    }

    // Save the data to the database
    $post = Post::find($id);

    $post->title = $request->input('title');
    $post->slug = $request->input('slug');
    $post->category_id = $request->input('category_id');
    $post->description = $request->input('description');
    $post->short_description = $request->input('short_description');
    $post->date = $request->input('date');
    $post->image = $fileNameToStore;
    $post->meta_title = $request->input('meta_title');
    $post->meta_keywords = $request->input('meta_keywords');
    $post->authorname = $request->input('authorname');

    $post->save();

    if (isset($request->tags)) {
        $post->tags()->sync($request->tags);
    } else {
        $post->tags()->sync([]);
    }

    // set flash data with success message
    Session::flash('success', 'This post was successfully saved.');

    // redirect with flash data to posts.show
    return redirect()->route('posts.show', $post->id);
}

这将解决您的问题。

在 laravel 的表单更新中获得 302

got 302 on form update in laravel

php

mysql

forms

http-status-code-302

laravel