图像不是通过添加表单添加，而是更新

Question

在我的项目中，我想将图像添加到数据库中。

一切都很好。

现在，当我添加新产品并为其选择图像时，图像不会保存到数据库中。

但更新功能可以添加图像。

我的添加功能，

  $books=Request::all();
        $book= new Book;
        $book->title=$books['title'];
        $book->author= $request->author;
        $book->publisher= $request->publisher;
        $book->year= $request->year;
        $book->price= $request->price;    

        if($request->hasFile('image')){
            $image=$request->file('image');
            $filename=time() . '.' .$image->getClientOriginalExtension();
            $location=public_path('images/' .$filename);
            Image::make($image)->resize(200,100)->save($location);
            $book->image=$filename;    
        }

        $book->save();       

更新方法是，

 public function update($id, Requests\BookRequest $request){
        $book= Book::findorfail ($id);
        $book->title= $request->title;
        $book->author= $request->author;
        $book->publisher= $request->publisher;
        $book->year= $request->year;
        $book->price= $request->price;
        if($request->hasFile('image')){
            $image=$request->file('image');
            $filename=time() . '.' .$image->getClientOriginalExtension();
            $location=public_path('images/' .$filename);
            Image::make($image)->resize(200,100)->save($location);
            $book->image=$filename;    
        }
        $book->update();

add.blade.php

@extends('pages.app')
@section('content')

<h1>Add Books</h1>
 </hr>
     {{--{!! Form::open(['url'=>'books/add','files'=>true])!!}--}}
{!! Form::model(['method'=>'POST','action'=>['BooksController@store'],'files'=>true]) !!}
     <div class="form-group">

         {!! Form::label ('title','Title') !!}
         {!! Form::text('title',null,['class'=>'form-control'])  !!}

     </div>
     <div class="form-group">

         {!! Form::label ('author','Author') !!}
         {!! Form::text('author',null,['class'=>'form-control']) !!}

     </div>
 <div class="form-group">
     {!! Form::label('publisher', 'Publisher') !!}
     {!! Form::text('publisher',null,['class'=>'form-control']) !!}
 </div>

     <div class="form-group">
         {!! Form::label('year', 'Publishing Year') !!}
         {{ Form::selectRange('year', 1950, 2050,2016, ['class' => 'field']) }}
     </div>
     <div class="form-group">
         {!! Form::label ('image','Icon') !!}
         {!! Form::file ('image') !!}

     </div>

<div class="form-group">
    <div >
        <img src="" align="middle" height="136" width="144" >
    </div>
</div>

<div class="form-group">

         {!! Form::label ('price','Price') !!}
         {!! Form::text('price',null,['class'=>'form-control']) !!}
     </div>

<div class="form-group">
    {!! Form::submit('Add',['class'=>'btn btn-primary btn-lg' ]) !!}
</div>

@if($errors->any())
<ul class="alert alert-danger">

    @foreach($errors->all()as $error)
        <li>{{$error}}</li>
        @endforeach
</ul>

@endif
@stop

我的编辑视图是：

@extends('pages.app')
@section('content')
    <h1>Edit Book's Details</h1>
    </hr>
    {!! Form::model($book, ['method'=>'PATCH','action'=>['BooksController@update',$book->id],'files'=>true])!!}
    <div class="form-group">

        {!! Form::label ('title','Title') !!}
        {!! Form::text('title',null,['class'=>'form-control'])  !!}

    </div>

    <div class="form-group">    

        {!! Form::label ('author','Author') !!}
        {!! Form::text('author',null,['class'=>'form-control']) !!}

    </div>
    <div class="form-group">
        {!! Form::label('publisher', 'Publisher') !!}
        {!! Form::text('publisher',null,['class'=>'form-control']) !!}
    </div>

    <div class="form-group">
        {!! Form::label('year', 'Publishing Year') !!}
        {{ Form::selectRange('year', 1950, 2050,$book->year,['class' => 'field']) }}
    </div>
    <div class="form-group">
        {!! Form::label ('image','Icon') !!}
        {!! Form::file ('image') !!}

    </div>    

    <div class="form-group">

        {!! Form::label ('price','Price') !!}
        {!! Form::text('price',$book->price,['class'=>'form-control']) !!}    
    </div>    

    <div class="form-group">
        {!! Form::submit('Update',['class'=>'btn btn-primary btn-lg' ]) !!}    
    </div>    

    {!! Form::close() !!}
    @if($errors->any())
        <ul class="alert alert-danger">

            @foreach($errors->all()as $error)
                <li>{{$error}}</li>
            @endforeach
        </ul>

    @endif    
@stop

这是edit.blade.php。