DB::table('amounts')->findOrFail($id);
return
Call to undefined method Illuminate\Database\Query\Builder::findOrFail()
I don't want to use models here.
What's the best way to achieve this ? (I just want to return a 404 when the id is not in the table.)
In the meantime I do:
$amount = DB::table('amounts')->find($request->input('amount'));
if(!$amount) abort(404);
As you can see in this API documentation
https://laravel.com/api/5.4/Illuminate/Database/Eloquent/Builder.html#method_find
https://laravel.com/api/5.4/Illuminate/Database/Eloquent/Builder.html#method_findOrFail
find($id) is Database Builder method but findOrFail($id) is not so you cannot use it directly that way.
I didn't really get why you don't want to use Eloquent Model but thats the good way to do or stick with what you are doing in meantime.
You can try with below code to get record if exits into table or not:
$result = DB::table('amounts')->find($id);
if($result == NULL) //check if no record found
{
//do your stuff here
}
else //if record found from table
{
//do your stuff here
}
Hope this helps.
If you don't want to use models then that will do the job. If you use models you can try and catch the
\Illuminate\Database\Eloquent\ModelNotFoundException
and abort 404 at that point.
Related
If you are thinking this question is a beginner's question, maybe you are right. But really I was confused.
In my code, I want to know if saving a model is successful or not.
$model = Model::find(1);
$model->attr = $someVale;
$saveStatus = $model->save()
So, I think $saveStatus must show me if the saving is successful or not, But, now, the model is saved in the database while the $saveStatus value is NULL.
I am using Laravel 7;
save() will return a boolean, saved or not saved. So you can either do:
$model = new Model();
$model->attr = $value;
$saved = $model->save();
if(!$saved){
//Do something
}
Or directly save in the if:
if(!$model->save()){
//Do something
}
Please read those documentation from Laravel api section.
https://laravel.com/api/5.8/Illuminate/Database/Eloquent/Model.html#method_getChanges
From here you can get many option to know current object was modified or not.
Also you can check this,
Laravel Eloquent update just if changes have been made
For Create object,
those option can helpful,
You can check the public attribute $exists on your model
if ($model->exists) {
// Model exists in the database
}
You can check for the models id (since that's only available after the record is saved and the newly created id is returned)
if(!$model->id){
App::abort(500, 'Some Error');
}
I'm calling a product's information field, as you can see below:
$product->attributes->first()->attributeValues->where('locale',$iso);
Basically in the $product variable already have information regarding the product.
I use $product->attributes->first() to get his attributes, and after getting them I go get his values with ->attributeValues->where('locale',$iso) with the specific language.
The data it outputs is good, but only if attributes exist, because in case there isn't any it doesn't and because of the attributeValues method the page fails.
How can I handle in this situation?
You may check it with a simple empty() or even count() if you prefer.
$attributes = $product->attributes->first()->attributeValues->where('locale',$iso);
if (count($attributes) == 0) {
// There is no attribute, do something
}
Split up your line
$attributes = $product->attributes->first(); // placeholder
if(isset($attributes) { // check if we have one
$attributes->attributeValues->where('locale',$iso); // if so.. do the dance
} else {// go home }
I'm using Laravel Spark and I'm reading the docs, but I can't find any method to get a list of my Spark developers. It looks like the only usage I can find that references the protected $developers variable is the middleware which compares an email address with Spark::developer().
Is there anything like Spark::getDevelopers() that would either return the protected array, or a collection of the actual users with matching emails?
I could do this but it seems needlessly expensive:
$users = User::get();
$developers = $users->filter(function ($user) {
return Spark::developer($user->email);
});
This does the trick without having to modify anything:
$developers = User::whereIn('email', Spark::$developers)->get();
Add this to ManagesAppDetails.php
public static function getDevelopers(){
return self::$developers;
}
then you can do:
spark::getDevelopers()
hope this helps!
Does any one has an idea about this. I don't know why it is showing duplicated queries. I searched a lot, found one answer on stackoverflow, but didn't get proper answer. If anyone faced the same error then please let me know. Thank you
protected $_param;
public function __construct(Utility $utility)
{
$league = $utility->checkDomainController();
view()->share('league', $league);
$this->league = $league;
}
This is the code in controller. which shares league to all the views. But there is only one query in $league = $utility->checkDomainController();
Here is the checkDomainController
if(\Request::server('HTTP_HOST') == env('MAIN_DOMAIN'))
{
$leagueSlug = Route::current()->getParameter('league');
$league = League::where('url', $leagueSlug)->first();
}
else
{
$league = League::where('custom_domain', \Request::server('HTTP_HOST'))->first();
}
if(!$league)
{
//error page
}
return $league;
Anytime you call a property which relies on a related model in blade, Laravel executes a new query, unless you eager load and pass from the controller to the view the preloaded data.
This example you posted seems to me as a loop somewhere within your blade code. Maybe if you can share a bit more of the code related to the front-end, I can help you figure it out.
I'm following Dayle Rees' book "Code Bright" tutorial on building a basic app with Laravel (Playstation Game Collection).
So far so good, the app is working but, following his advices at the end of the chapter, I'm doing my homeworks trying to improve it
So, this snippet is working fine for existing models but throws an error if the item doesn't exists:
public function edit(Game $game){
return View::make('/games/edit', compact('game'));
}
In other words, http://laravel/games/edit/1 shows the item with ID = 1, but http://laravel/games/edit/21456 throws an error since there's no item with that ID
Let's improve this behaviour, adapting some scripts found also here on StackOverflow (Laravel 4: using controller to redirect page if post does not exist - tried but failed so far):
use Illuminate\Database\Eloquent\ModelNotFoundException; // top of the page
...
public function edit(Game $game){
try {
$current = Game::findOrFail($game->id);
return View::make('/games/edit', compact('game'));
} catch(ModelNotFoundException $e) {
return Redirect::action('GamesController#index');
}
}
Well... nothing happens! I still have the error with no redirect to the action 'GamesController#index'... and please notice that I have no namespaces in my Controller
I tried almost anything:
Replace catch(ModelNotFoundException $e) with catch(Illuminate\Database\Eloquent\ModelNotFoundException $e): no way
put use Illuminate\Database\Eloquent\ModelNotFoundException; in Model instead of Controller
Return a simple return 'fail'; instead of return Redirect::action('GamesController#index'); to see if the problem lies there
Put almost everywhere this snippet suggested in Laravel documentation
App::error(function(ModelNotFoundException $e)
{
return Response::make('Not Found', 404);
});
Well, simply nothing happened: my error is still there
Wanna see it? Here are the first two items in the errors stack:
http://www.iwstudio.it/laravelerrors/01.png
http://www.iwstudio.it/laravelerrors/02.png
Please, can someone tell me what am I missing? This is driving me mad...
Thanks in advance!
Here are few of my solutions:
First Solution
The most straightforward fix to your problem will be to use ->find() instead of ->findOrFail().
public function edit(Game $game){
// Using find will return NULL if not found instead of throwing exception
$current = Game::find($game->id);
// If NOT NULL, show view, ELSE Redirect away
return $current ? View::make('/games/edit', compact('game')) : Redirect::action('GamesController#index');
}
Second solution
As I notice you may have been using model binding to your route, according to Laravel Route model binding:
Note: If a matching model instance is not found in the database, a 404 error will be thrown.
So somewhere where you define the model binding, you can add your closure to handle the error:
Route::model('game', 'Game', function()
{
return Redirect::action('GamesController#index');
});
Third Solution
In your screenshot, your App::error seems to work as the error says HttpNotFound Exception which is Laravel's way of saying 404 error. So the last solution is to write your redirect there, though this apply globally (so highly discouraged).