Laravel 5.2 - 将文件上传到数据库 [英] Laravel 5.2 - Upload Files to Database
问题描述
这些是我拥有的：
数据库表名为 lamanInformasi 具有以下字段： id ， judul ， isi code> created_at ， updated_at 。
我想：
用户可以上传多个文档或图像文件，这些文件将存储到数据库。文件名将保存到 isi 字段，文件本身将保存到名为 propic 的文件夹。用户还可以在网站上显示数据库中的所有数据。
这些是我的代码：
create.blade.php
< form action =lamanInformasiController @ index method =postenctype =multipart / form-data>
< input type =filename =image>< br />
< input type =submitname =submitvalue =Submit>
< / form>
lamanInformasiController.php
public function index（Request $ request）
{
$ file = new file;
if（Input :: hasFile（'image'））
{
$ destinationPath = public_path（）。'/ propic /';
$ name = Input :: file（'image'） - > getClientOriginalName（）;
$ extension = Input :: file（'image'） - > getClientOriginalExtension（）;
$ file = Input :: file（'image'） - > move（$ destinationPath，$ name。。。
}
$ file - > isi = $ request-> get（$ file）;
$ file - >保存（）;
$ lamanInformasi = LamanInformasi :: all（）;
return view（'upload.index'，compact（'lamanInformasi'））;
}
index.blade.php
< table class =table table-striped table-borderedborder =1px solid black>
< thead>
< tr>
< td> ID< / td>
< td> Judul< / td>
< td> Isi< / td>
< td>创建于< / td>
< td>更新于< / td>
< / tr>
< / thead>
< tbody>
@foreach（$$ lamanInformasi as $ key => $ value）
< tr>
< td> {{$ value-> id}}< / td>
< td> {{$ value-> judul}}< / td>
< td> {{$ value-> isi}}< / td>
< td> {{$ value-> created_at}}< / td>
< td> {{$ value-> updated_at}}< / td>
< / tr>
@endforeach
< / tbody>
< / table>
运行时出现此错误：
ParameterBag.php第90行中的ErrorException：
array_key_exists（）：第一个参数应为字符串或整数
我在中有这个参数行89-91
public function get（$ key，$ default = null）
{
return array_key_exists（$ key，$ this->参数）？ $ this-> parameters [$ key]：$ default;
}
这是我的问题：
如何解决这个错误？我是否使代码正确上传文件？因为我已经尝试过类似的代码，它不工作。感谢
有几件事你需要照顾。尝试下面的代码
LamanInformasiController.php - 控制器名称通常大写。
class LamanInformasiController extends Controller
{
/ **
* @var LamanInformasi - 包括上面的use语句的模型。
* /
protected $ model;
/ **
*实例化控制器时注入（模型）LamanInformasi。
* @param LamanInformasi $ model
* /
public function __construct（LamanInformasi $ model）
{
$ this-> model = $ model;
}
public function index（）
{
$ lamanInformasi = $ this-> model-> all（）;
return view（'upload.index'，compact（'lamanInformasi'））;
}
public function store（Request $ request）
{
if（Input :: hasFile（'image'））
{
$ destinationPath = public_path（）。'/ propic /';
$ name = Input :: file（'image'） - > getClientOriginalName（）;
$ extension = Input :: file（'image'） - > getClientOriginalExtension（）;
$ fileName = $ name。'。'。$ extension;
//将文件存储在$ destinationPath
$ file = Input :: file（'image'） - > move（$ destinationPath，$ fileName）;
//在数据库中保存相应的记录
$ this-> model-> create（['isi'=> $ fileName]）;
//返回成功消息
}
//返回失败消息
}
} //不要忘记包含使用语句输入或写入\Input
然后在 index.blade.php
< table class =table table-striped table-borderedborder =1px solid black>
< thead>
< tr>
< td> ID< / td>
< td> Judul< / td>
< td> Isi< / td>
< td>创建于< / td>
< td>更新于< / td>
< / tr>
< / thead>
< tbody>
@foreach（$ lamanInformasi as $ file）
< tr>
< td> {{$ file-> id}}< / td>
< td> {{$ file-> judul}}< / td>
< td> {{$ file-> isi}}< / td>
< td> {{$ file-> created_at}}< / td>
< td> {{$ file-> updated_at}}< / td>
< / tr>
@endforeach
< / tbody>
因此
< form action =/ upload8method =postenctype =multipart / form-data>
< input type =filename =image>< br />
< input type =submitname =submitvalue =Submit>
t测试。如果不是这样，请告诉我。
These are what I have :
Database table named
lamanInformasi, which has these fields:id,judul,isi,created_at,updated_at.This is what I want :
User can upload multiple document or image files, and the files will be stored to database. The file names will be saved to
isifield, and the files itself will be saved to a folder namedpropic. User also can show all the data from database on the website.These are my codes :
create.blade.php
<form action="lamanInformasiController@index" method="post" enctype="multipart/form-data"> <input type="file" name="image"><br /> <input type="submit" name="submit" value="Submit"> </form>lamanInformasiController.php
public function index(Request $request) { $file = new file; if (Input::hasFile('image')) { $destinationPath = public_path().'/propic/'; $name = Input::file('image')->getClientOriginalName(); $extension = Input::file('image')->getClientOriginalExtension(); $file = Input::file('image')->move($destinationPath, $name . "." . $extension); } $file -> isi = $request->get($file); $file -> save(); $lamanInformasi = LamanInformasi::all(); return view('upload.index', compact('lamanInformasi')); }index.blade.php
<table class="table table-striped table-bordered" border= "1px solid black"> <thead> <tr> <td>ID</td> <td>Judul</td> <td>Isi</td> <td>Created At</td> <td>Updated At</td> </tr> </thead> <tbody> @foreach($$lamanInformasi as $key => $value) <tr> <td>{{$value->id}}</td> <td>{{$value->judul}}</td> <td>{{$value->isi}}</td> <td>{{$value->created_at}}</td> <td>{{$value->updated_at}}</td> </tr> @endforeach </tbody> </table>When I run it, I have this error :
ErrorException in ParameterBag.php line 90: array_key_exists(): The first argument should be either a string or an integerI have this in
ParameterBag line 89-91public function get($key, $default = null) { return array_key_exists($key, $this->parameters) ? $this->parameters[$key] : $default; }These are my questions :
How to fix that error? Did I make the code right to upload files? Because I have tried similar code, and it's not working. Thanks
解决方案There are a couple of things which you need to take care of. Try the code as below
LamanInformasiController.php - controller names are generally capitalized
class LamanInformasiController extends Controller { /** * @var LamanInformasi - include the use statement above for the model. */ protected $model; /** * Inject (model)LamanInformasi while instantiating the controller. * @param LamanInformasi $model */ public function __construct(LamanInformasi $model) { $this->model = $model; } public function index() { $lamanInformasi = $this->model->all(); return view('upload.index', compact('lamanInformasi')); } public function store(Request $request) { if (Input::hasFile('image')) { $destinationPath = public_path().'/propic/'; $name = Input::file('image')->getClientOriginalName(); $extension = Input::file('image')->getClientOriginalExtension(); $fileName = $name.'.'.$extension; //store the file in the $destinationPath $file = Input::file('image')->move($destinationPath, $fileName); //save a corresponding record in the database $this->model->create(['isi'=> $fileName]); //return success message } //return failure message } } //don't forget to include the use statement for Input or write \InputThen in your index.blade.php
<table class="table table-striped table-bordered" border= "1px solid black"> <thead> <tr> <td>ID</td> <td>Judul</td> <td>Isi</td> <td>Created At</td> <td>Updated At</td> </tr> </thead> <tbody> @foreach($lamanInformasi as $file) <tr> <td>{{$file->id}}</td> <td>{{$file->judul}}</td> <td>{{$file->isi}}</td> <td>{{$file->created_at}}</td> <td>{{$file->updated_at}}</td> </tr> @endforeach </tbody>
And your form action should be accordingly
<form action="/upload8" method="post" enctype="multipart/form-data"> <input type="file" name="image"><br /> <input type="submit" name="submit" value="Submit">This should work, haven't tested though. Let me know if otherwise.
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