【发布时间】：2021-08-24 19:55:15
【问题描述】：
- 一个用户有很多产品并且产品有自己的ID 2）一个产品有很多项目 我无法制作 ProjectController 注意：如果您需要更多详细信息，可以询问。 这是我的用户模型 user.php
public function Products(){
return $this->hasMany('App\Models\Product');
}
public function Project(){
return $this->hasMany('App\Models\Project');
}
这是我的产品模型 product.php
public function User(){
return $this->belongsTo(User::class);
}
public function Project(){
return $this->hasMany('App\Models\Project');
}
这是我的项目模型project.php
public function User(){
return $this->belongsTo(User::class);
}
public function Product(){
return $this->belongsTo(Product::class);
}
这里的产品表有 user_id 作为 forignId，项目表有 user_id 和 product_id 作为外键 这是项目表project.php
$table->unsignedBigInteger ('user_id');
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
$table->foreignId('product_id')->nullable();
这是我在ProjectController.php中遇到的麻烦
class ProjectController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
// $projects = Project::where('user_id',auth()->user()->id)->latest()->paginate(20);
$projects = Project::where('user_id',auth()->user()->id)->where('product_id')->latest()->paginate(20);
return view('projects.index', compact('projects'))
->with('i', (request()->input('page', 1) - 1) * 5);
}
/**
* Show the form for creating a new resource.
*
* @return \Illuminate\Http\Response
*/
public function create()
{
return view('projects.create');
}
/**
* Store a newly created resource in storage.
*
* @param \Illuminate\Http\Request $request
* @return \Illuminate\Http\Response
*/
public function store(Request $request,$id)
{
$request->validate([
'chapter_name' => 'required',
'sub_section_name' => 'required',
'title_1' => 'required',
'description_1' => 'required',
'image_1' => 'required',
'image_2' => 'required',
'image_3' => 'required',
'title_2' => 'required',
'description_2' => 'required',
'title_3' => 'required',
'description_3' => 'required',
'video_1' => 'required',
'video_2' => 'required',
'video_3' => 'required',
]);
// $input = $request->all();
$input['user_id'] = auth()->user()->id;
$input['product_id'] = $id;
Project::create($input);
return redirect()->route('project.index')
->with('success','Product created successfully.');
}
/**
* Display the specified resource.
*
* @param \App\Models\Project $project
* @return \Illuminate\Http\Response
*/
public function show(Project $project)
{
// $category = $project->category;
return view('projects.show', compact('project'));
}
/**
* Show the form for editing the specified resource.
*
* @param \App\Models\Project $project
* @return \Illuminate\Http\Response
*/
public function edit(Project $project)
{
return view('projects.edit', compact('project'));
}
/**
* Update the specified resource in storage.
*
* @param \Illuminate\Http\Request $request
* @param \App\Models\Project $project
* @return \Illuminate\Http\Response
*/
public function update(Request $request, Project $project)
{
// $user_id = Auth::user()->id ;
$request->validate([
'chapter_name' => 'required',
'sub_section_name' => 'required',
'title_1' => 'required',
'description_1' => 'required',
'image_1' => 'required',
'image_2' => 'required',
'image_3' => 'required',
'title_2' => 'required',
'description_2' => 'required',
'title_3' => 'required',
'description_3' => 'required',
'video_1' => 'required',
'video_2' => 'required',
'video_3' => 'required',
]);
$input = $request->all();
$project->update($input);
return redirect()->route('project.index')
->with('success','Product updated successfully');
}
/**
* Remove the specified resource from storage.
*
* @param \App\Models\Project $project
* @return \Illuminate\Http\Response
*/
public function destroy(Project $project)
{
$project->delete();
return redirect()->route('projects.index')
->with('success', 'Project deleted successfully');
}
public function importProject()
{
Excel::import(new ProjectsImport, request()->file('file'));
return back()->with('success','Project created successfully.');
}
public function export()
{
return Excel::download(new UsersExport, 'projects.xlsx');
}
}
这是用户表 user.php
Schema::create('users', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('name');
$table->string('email')->unique();
$table->timestamp('email_verified_at')->nullable();
$table->string('password');
$table->rememberToken();
$table->foreignId('current_team_id')->nullable();
$table->text('profile_photo_path')->nullable();
$table->timestamps();
});
这是产品表 products.php
Schema::create('products', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('name');
$table->text('detail');
$table->string('color');
$table->string('image');
$table->string('logo');
$table->unsignedBigInteger('user_id');
$table->timestamps();
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
});
这是项目表project.php
Schema::create('projects', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('chapter_name', 255)->nullable();
$table->string('sub_section_name', 500)->nullable();
$table->string('title_1', 255)->nullable();
$table->string('description_1', 5000)->nullable();
$table->string('image_1', 255)->nullable();
$table->string('image_2', 255)->nullable();
$table->string('image_3', 255)->nullable();
$table->string('title_2', 255)->nullable();
$table->string('description_2', 5000)->nullable();
$table->string('title_3', 255)->nullable();
$table->string('description_3', 255)->nullable();
$table->string('video_1', 255)->nullable();
$table->string('video_2', 255)->nullable();
$table->string('video_3', 255)->nullable();
$table->unsignedBigInteger ('user_id');
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
// $table->foreignId('product_id')->nullable();
$table->unsignedBigInteger('product_id')->references('id')->on('products')->onDelete('cascade');
$table->timestamp('created_at')->useCurrent();
$table->timestamp('updated_at')->nullable();
});
感谢您的帮助
【问题讨论】：
-
关系方法名不应该是
get{Whatever}，而应该是简单的{whatever}，比如public function products()或public function product()，而不是public function getProducts()和public function getProduct()。这样，Laravel 可以根据你的模型自动链接它们。 -
我不明白，对不起，我不是那么专家，我刚开始在 laravel
-
@AbdullahAlShahed ，什么不起作用？请具体一点。
-
@AbdullahAlShahed ，您说 “一个用户有很多产品”，然后继续在 User 和 Projects 之间建立联系 在
User和Project模型中。这是否意味着一个用户有很多产品和项目？ -
现在我的 projectImport.php 中有这个未定义的数组键“id”错误。看我的版本这个id应该是ptoduct id