使用 vue.js 在 laravel 中上传照片时出错

Question

I'm making a single page application using laravel and vuejs with vue-router. I'm using the api.php routes for my http requests. And whenever I save a data in my news table with image, it shows me an error. What do I need to do with this? NewsController.php

<?php

namespace App\Http\Controllers\API;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use App\News;
class NewsController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        return News::latest()->paginate(10);
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        $this->validate($request, [
            'title' => 'required|string|max:191|unique:news',
            'subtitle' => 'required|string|max:191',
            'body' => 'required|string',
            'image' => 'image|mimes:jpeg,png,jpg,gif,svg,PNG|max:2048',
        ]);


        $news = new News;
        $news->title = $request->title;
        $news->subtitle = $request->subtitle;
        $news->body = $request->body;
        if ($request->hasFile('image')){
            //Add new photo
                $image = $request->file('image');
                $filename = time() . '.' . $image->getClientOriginalExtension();
                $location = public_path('img/news/' . $filename);
                \Image::make($image)->resize(300,300)->save($location);

                $oldFilename = $news->image;
            //Update DB
                $news->image = $filename;
             //Delete the old photo
                // Storage::delete($oldFilename);
        }

        $news->save();
    }
}

News.vue

<!-- Vform -->
                                  <form @submit.prevent="createNews()">
                                    <div class="form-group">
                                    <label>News Title</label>
                                    <input
                                    v-model="form.title"
                                    type="text" name="title"
                                    placeholder="Title"
                                    class="form-control" :class="{ 'is-invalid': form.errors.has('title') }">
                                    <has-error :form="form" field="title"></has-error>
                                    </div>

                                    <div class="form-group">
                                    <label>Subtitle</label>
                                    <input
                                    v-model="form.subtitle"
                                    type="text"
                                    name="subtitle"
                                    placeholder="Subtitle"
                                    class="form-control" :class="{ 'is-invalid': form.errors.has('subtitle') }">
                                    <has-error :form="form" field="subtitle"></has-error>
                                    </div>

                                    <div class="form-group">
                                    <label>News Content</label>
                                    <textarea
                                    v-model="form.body"
                                    type="text"
                                    name="body"
                                    placeholder="News Content"
                                    class="form-control" :class="{ 'is-invalid': form.errors.has('body') }">
                                    </textarea>
                                    <has-error :form="form" field="body"></has-error>
                                    </div>


                                    <div class="form-group">
                                    <label>Picture</label>
                                    <input type="file" id="image"
                                    class="form-control" :class="{ 'is-invalid': form.errors.has('image') }">
                                    <has-error :form="form" field="image"></has-error>
                                    </div>


                        <div class="modal-footer">
                        <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
                         <!-- <button  v-show="editmode" type="submit" class="btn btn-primary">Update</button> -->
                        <button type="submit" class="btn btn-success">Create</button>
                         </div>
                        </form>
                        <!-- vform -->

<script>
    export default {
        data(){
            return{
                news: {},
                form: new Form({
                    id:"",
                    title: "",
                    subtitle:"",
                    body:"",
                    image:"",
                    postedby:""
                })
            }
        },

        methods: {
            loadNews(){
                axios.get('api/news')
                    .then(({data}) => (this.news = data))
            },
            createNews(){
                this.$Progress.start()
                this.form.post("api/news")
                    .then(()=>{
                         $("#addNews").modal("hide")
                         $(".modal-backdrop").remove()
                        swal.fire("Created!", "", "success")
                    })
                this.$Progress.finish()
            },
        },

        created() {
            console.log('Component mounted.')
            this.loadNews()
        }
    }
</script>

api.php

Route::apiResource('news', 'API\NewsController');

Answer 1

Did you checked that your are using a multipart/form-data encoding ?

Edit: https://github.com/cretueusebiu/vform/blob/master/example/upload.html

Answer 2

put this code in your Vue file

 <div class="col-sm-12">
                  <input
                    type="file"
                    @change="updateImage"
                    class="form-input"
                    :class="{ 'is-invalid': form.errors.has('image') }"
                    id="image"
                    name="image"
                  />
                  <has-error :form="form" field="image"></has-error>
                </div>

<script>
    export default {
        data(){
            return{
                news: {},
                form: new Form({
                    id:"",
                    title: "",
                    subtitle:"",
                    body:"",
                    image:"",
                    postedby:""
                })
            }
        },

        methods: {
updateImage(e) {
      let file = e.target.files[0];
      console.log(file);
      let reader = new FileReader();
      if (file["size"] < 2111775) {
        reader.onloadend = file => {
          this.form.image= reader.result;
        };
        reader.readAsDataURL(file);
      } else {
        swal.fire({
          type: "error!",
          title: "Oops...",
          text: "Your are uploading a large File "
        });

        // return ["warning", "file size"];
        Fire.$emit("refreshPage");
      }
    },
            loadNews(){
                axios.get('api/news')
                    .then(({data}) => (this.news = data))
            },
            createNews(){
                this.$Progress.start()
                this.form.post("api/news")
                    .then(()=>{
                         $("#addNews").modal("hide")
                         $(".modal-backdrop").remove()
                        swal.fire("Created!", "", "success")
                    })
                this.$Progress.finish()
            },
        },

        created() {
            console.log('Component mounted.')
            this.loadNews()
        }
    }
</script>

your controller code is

<?php

namespace App\Http\Controllers\API;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use App\News;
class NewsController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        return News::latest()->paginate(10);
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        $this->validate($request, [
            'title' => 'required|string|max:191|unique:news',
            'subtitle' => 'required|string|max:191',
            'body' => 'required|string',
            'image' => 'image|mimes:jpeg,png,jpg,gif,svg,PNG|max:2048',
        ]);


        $news = new News;
        $news->title = $request->title;
        $news->subtitle = $request->subtitle;
        $news->body = $request->body;
        if ($request->hasFile('image')){
$name = time().'.'.explode('/',explode(':',substr($request->image,0,strpos($request->image,';')))[1])[1];
                    \Image::make($request->image)->save(public_path('img/news/').$name);


            //Update DB
                $news->image = $name ;

        }

        $news->save();
    }
}

If it worked let me know I will provide code for update