laravel 学习笔记

1. return redirect()->back()->withSuccess("成功");  return redirect()->back()->withErrors(‘失败’);

2.orm基本可以做所有的单表操作了，当然也可以做left right操作，但是要慎用。

3.软删除在建模的时候要设计到，其实就是在db里面加了一个状态码，和我之前设计的模式是一样的。

4.orm插入之前记得unset token和method unset($data['_token']); unset($data['_method']);

$users = DB::table('users')
    ->leftJoin('role_user','users.id','=','role_user.user_id')
    ->leftJoin('roles','roles.id','=','role_user.role_id')
    ->select('users.*','roles.display_name as role_name')
    ->where('roles.name','like',$group.'%')
    ->orderby('created_at','desc')
    ->paginate(25);

return response()->download(
    realpath(storage_path('app')).'/'.$file_info[0]['file_path'],
    $file_info[0]['file_name']
);

Storage::disk()->exists($file_info[0]['file_path']);

Storage::put(
    $savePath,
    file_get_contents($file->getRealPath())
);

$data = DB::table('material')
            ->leftJoin('users', 'users.id', '=', 'material.author')
            ->leftJoin('role_user','users.id','=','role_user.user_id')
            ->leftJoin('roles','roles.id','=','role_user.role_id')
            ->select('material.*','roles.name as role_name','users.name as username')
            ->where('material.created_at','>=',isset($conf['start_date'])?"{$conf['start_date']}":"2016-01-11 00:00:00")
            ->where('material.created_at','<=',isset($conf['end_date'])? "{$conf['end_date']}":"$now")
            ->where('material.created_at','>',"$lmt_time")
            ->orderby('created_at','desc')
//            ->where('material.name1','like',isset($conf['name'])?"{$conf['name']}%":"'%'")
            ->paginate(25);

$group = config('parts.file_key');

protected $fillable = ['permission_id', 'role_id'];

protected $table = "permission_role";

public $timestamps = false;

protected $table = 'users';

/**
 * The attributes that are mass assignable.
 *
 * @var array
 */
protected $fillable = ['name', 'email', 'password', 'addr', 'phone'];

/**
 * The attributes excluded from the model's JSON form.
 *
 * @var array
 */
protected $hidden = ['password', 'remember_token'];

@if(Session::has('errors'))
    <div id="errors-message" class="alert alert-danger alert-dismissible">
        <button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
        <h4><i class="icon fa fa-ban"></i> 错误提示!</h4>
        @foreach($errors->all() as $error)
            {{$error}}
        @endforeach
    </div>
@endif

5.