程式學習日記，如果我幫助了你請讓我知道

1.href="{{public_path() }}" 取得真實public 所在位置

2.group as下又有group as

Route::group(['prefix'=>'blog'],function(){

    Route::group(['as'=>'myblog::'],function(){
        
    
            Route::get('/myblog',['as'=>'article-list',function () {
                    return view('blog.article-list');
                }] );

                Route::get('/myblog/article', function () {
                    return view('blog.article');
                });

            });

    Route::get('/latest-article', function () {
        return view('blog.latest-article');
    })->name('latest-article');

});

//改成controller

Route::get('/{user}','BlogController@getBlog',['as'=>'article-list',
                ] );

Route::get('/{user}','BlogController@getBlog',)name('article-list');

3.客製化驗證訊息

$this->validate($request,[],['email.required'=>'填寫email'])

4.返回帶訊息

        return redirect()->back()->withErrors(['帳號密碼錯誤'])->withInput($rq->all());

5.ip

$request->ip():

6.timestamp 取消

    public $timestamps = false;
7.

laravel  factory 中關聯

 factory(App\User::class,15)->create()->each(

            function($u){

         $u->userinfo()->save(factory(App\UserInfo::class)->make());

        }

        );

8.關聯存取

$comment = new App\Comment(['message' => 'A new comment.']);

$post = App\Post::find(1);

$post->comments()->save($comment);

9.用laravel

因為blade會找不到$blog->blog-title

所以資料庫最好這樣存blog_title

10.

來訪加一

要用DB提供的方法

    $useraccount=User::where('account',$user)->first();
        $avatar=$useraccount->avatar;
        DB::table('blog')->where('user_id',$useraccount->id)->increment('visited_count');

11.Image按比例

shayne.ankunding

Image::make($avatar)->resize(70,null, function ($constraint) {
    $constraint->aspectRatio();
})->save( public_path('/user/avatars/'.$filename ));

12.blade用format created_at

                    <span class="post-time">{{$article->created_at->format('g:i A')}}</span>
13.

orderby coloumn 在 pivot  

  public function visitersOfMine(){

         return   $this->belongsToMany('App\User','visit','user_id','visiter_id')->withPivot('created_at');
    }
    public function getlatest(){

       return $this->visitersOfMine()->orderBy('pivot_created_at','desc')->get();
    }

* pivot_created_at  是樞紐新增的名字

14.

MYSQL 取最新不重覆的資料

SELECT
visit.visiter_id, visit.user_id ,max(visit.created_at) as date
FROM
visit  Group BY visit.visiter_id ORDER BY date DESC
15.

laravel取最新不重覆

return $this->visitersOfMine()->orderBy('pivot_created_at','desc')->get()->unique();

16.操作collection

   $jobs = Job::search();
    $countries = $jobs->get()->map(function( $job ) {

        return $job->country;
    });

17.

如果包含 html 或是 js 碼會直接顯示

{!!$content!!}

18.

laravel cookie 

   if(!Cookie::has('visited'.$user.'blog')){
         DB::table('blog')->where('user_id',$user_id)->increment('visited_count');
        Cookie::queue('visited'.$user.'blog', 'shit', 720);

    }

另一種做法，使用 queue 就不需要 Attaching

$faker->unique()->randomNumber用在website

    return User::with(['post' => function (HasOne $query) {
                $query->where('id', '<', '6');
            }])
            ->where('id', '>', 2)
            ->get();
    }

->withTimestamps()