I need to pass select option value from store method to show
i need to pass the $typeg value to show method
public function store(Request $request ) {
$typeg = $request->input('type');
}
public function show($id) {
dd($this->store($typeg));
}
i get
Undefined variable:
or
Too few arguments to function app\Http\Controllers\appController::show(), 1 passed and exactly 2 expected
Try this
on the first function you have some variable witch you want to pass it to another function\method
Than you need to use $this and the name of the other method you'd like to pass the var too something like this.
public function oneFunction(){
$variable = "this is pretty basic stuff in any language";
$this->anotherFunction($variable)
}
public function anotherFunction($variable){
dd($variable);
}
Store your data on session (or somewhere else like cookie, cache, database). So you can reach the data later.
class SomeController extends Controller {
public function store(Request $request ) {
session(["typeg"=>$request->input('type')])
}
public function show($id) {
dd(session("typeg"));
}
Related
How do I pass a true false value to the controller from the redirect in the class and to the router and back to another function in the same controller class if that makes sense
Like
public function 1() {
return redirect('route2');
}
public function2() {
I need to access the variable here that some how gets passed from the first function
}
Because these functions are both on my main controller and I need to pass a variable through the route
and back into the controller or is there a way to put a state variable on the class or something I just need to call a function on the controller with conditions from the previous controller function that called called the redirect route.
Also sorry if I am mixing up class and function I am new to laravel and MVC in general.
You can do something like this:
public function first() {
return redirect()->action(
[YourController::class, 'second'], ['value' => true]
);
}
public function second($value = null) {
// whatever you want
}
https://laravel.com/docs/9.x/redirects#redirecting-controller-actions
I think this code help you:
public function 1() {
return to_route('YOUR_ROUTE_NAME', ['value' => 'some things...']);
}
public function2(Request $request, $value) {
// Use the value passed as a route parameter
// $value is 'some things...'
}
I have the following problem. I hope my approach is not completely wrong, feel free to advice.
I have a Model class Chat.php
protected $skip;
protected $take;
protected $agreements;
protected $chat;
public function getSkip()
{
return $this->skip;
}
public function setSkip($skip)
{
$this->skip = $skip;
}
public function getTake()
{
return $this->take;
}
public function setTake($take)
{
$this->take = $take;
}
public function __construct(array $attributes = array())
{
parent::__construct($attributes);
$this->setTake(8);
$this->setSkip(8);
}
I set properties skip and take here.
Then, I have the DashboardController
class DashboardController extends Controller
{
private $chat;
/**
* DashboardController constructor.
* #param $chat
*/
public function __construct(Chat $chat)
{
$this->chat = $chat;
}
/**
* Display a listing of the authenticated resource.
*
* #return \Illuminate\Http\Response
*/
public function index()
{
$chats = Chat::orderBy('created_at','desc')->skip($this->chat->getSkip())->take($this->chat->getTake())->get();
$agreements = AgrType::orderBy('created_at','desc')->take(10)->get();
return view('sections.dashboard', compact('chats','agreements'));
}
public function loadMore()
{
$this->chat->setSkip($this->chat->getSkip() - 1 );
$this->chat->setTake($this->chat->getTake() - 1);
return redirect('/dashboard');
}
My approach is as follows:
After a user clicks on button, route /loadmore get him to this controller and triggers loadMore function.
LoadMore function then gets values through accessors and sets values with mutator.
Index method then simply reads this values.
So the meaning is: I show chat window (rather maybe comments window cause this si not really a chat), index method is called.
Index method reads the values and displays comments according to query. -> this one is OK
Now, what does NOT work:
When I click button, loadMore function gets called, sets the values which index method then reads and reloads according to them.
What did I try: I tried loadMore method to display its own values (changed) and return them, but then I have a new route for reloaded chat and it is not what I want.
What do I miss? Is my approach OK? (I know javascript is maybe better for this, but I want a Laravel way, get and post.)
Thanks in advance.
Your controller functions get executed within in completely separate requests.
All return redirect('/dashboard'); does in loadMore() send your browser to the dashboard route. Your browser then makes a new request to index() on which your controller gets instantiated again, its __construct() function run again and a new empty Chat model gets instantiated.
I recommend you put the take and skip parameters into your url like this:
$router->get('/dashboard/{skip}/{take}', 'DashboardController#index');
And change your index() function to this:
public function index($skip, $take)
That way it will work, however the even better way of doing it would be to use Laravel's paginate() function: https://laravel.com/docs/5.6/pagination
public function index()
{
$chats = Chat::orderBy('created_at','desc')->paginate();
$agreements = AgrType::orderBy('created_at','desc')->take(10)->get();
return view('sections.dashboard', compact('chats','agreements'));
}
I am trying to pass the request variable from a form request to another controller (the second controller is going to have a lot of code in it so I want to use it to keep the main controller clean), but when I try and pass the variable over, nothing happens, the variable data isn't sent over.
Here is my current code:
class mainController extends Controller{
public function store(Request $request)
{
//validation
$otherClass = (new secondController)->createDBEntry($request);
}
}
class secondController extends Controller{
public function createDBEntry($request)
{
return $request;
}
}
However, nothing is passed from the $request into the secondController. If I echo something in the secondController it works no problem, so I know it's being called, but the data isn't being sent over. What am I missing here? Keep in mind I am fairly new to laravel and I am using 5.4.
Your code works just fine. You are just expecting a behavior that is never going to happen though because:
new secondController instantiates secondController
createDBEntry($request) calls the method createDBEntry passed
with $request
The returned value is stored in the variable $otherClass
And that's it! nothing more is (and will be) happening. If you want to see the value of $otherClass (and see your code working) you have to return it:
class mainController extends Controller
{
public function store(Request $request)
{
$otherClass = new secondController
$otherClass->createDBEntry($request);
return $otherClass;
}
}
class secondController extends Controller
{
public function createDBEntry($arg)
{
return $arg;
}
}
how pass and get params from one route to another
return redirect('/registration')->with('some_params', $input);
and here is registrationController index method:
public function index(){
$some_params = Request::get('some_params'); //no result
}
with method flashes data to the session, you have to retrieve the data using the Session::get method.
public function index(){
$some_params = Session::get('some_params');
}
How to recall the construct as it contains all the required data for the page?
class Abc extends CI_Controller
{
public function __construct()
{
parent::__construct();
$this->load->model('xyz_m');
$this->data['info'] = $this->xyz_m->get(); //get data
}
public function 123()
{
/*view page code*/
}
public function 456()
{
/*insert code here*/
$this->123(); // redirect, need to load 123() with updated data from construct.
}
}
So, how do you make the __construct initiate again so you get a new updated results from database?
You should name your methods with letter first i.e. there is convention for method names uses descriptive words getProducts() or get_books or you will get PHP error for using numbers as method names. So in your case method names should be like a123() or b_456().
Second thing, regarding your need in question, since you assign data from DB using model to array $this->data, you would use it like:
class Abc extends CI_Controller
{
public function __construct()
{
parent::__construct();
$this->load->model('xyz_m');
$this->data['info'] = $this->xyz_m->get(); //get data
}
public function a123()
{
$this->load->view('a123_view', $this->data);//loading file APPPATH . 'a123_view.php' and passing created array to it
}
public function b_456()
{
/*insert code here*/
$this->a123(); // redirect, need to load 123() with updated data from construct.
}
}
In your APPPATH . 'a123_view.php':
<?php var_dump($info);//here you would call key of array you passed from controller as variable ?>
Check basics in CodeIgniter documentations. All this is described in General Topics section.