Laravel对象在页面之间持久化

Question

Here's my sample code.

class A {
  public function foo(){

 }

 public function bar(){
 }
}



class B {

  $one;
  function here(){
    $this->one = new A();
    $this->one->foo();
    return View::make("route1"); //This is ok, no problems
  }

  function there(){
    $this->one->bar(); //ERROR: Call to a member function bar() on a non-object
  }
}

My routes

Route::get("/one", B@here);
Route::get("/two", B@there);

Please these just show a sample. Its not the code proper.

When the first Route is called all is ok, and the corresponding page is loaded. Now on a button click which now requests the second page that error is thrown...

//Call to a member function bar() on a non-object

Its obvious the cause for this and I have been trying to see if Laravel offers a way to persist objects in between page calls and if someone can please help.

Thanks

Answer 1

There is no nice way to store objects between page loads and really you would never want to do that anyway. A possible solution would be to add your dependency in the class constructor so it available throughout your class like this:

class A {
    public function foo(){}
    public function bar(){}
}

class B {
    protected $one;

    public function __construct(A $one)
    {
        $this->one = $one;
    }

    public function here()
    {
        $this->one->foo(); // Available
    }

    public function there()
    {
        $this->one->bar(); // Available
    }
}