im new in Laravel , I have an issue as below
I make in category model query to check is category is exist or not
as below
public function scopeIsExist($query ,$id)
{
return $query->where(['deleted' => 1, 'id' => $id])->orderBy('id', 'DESC')->first();
}
and my controller is
public function edit($id)
{
$dataView['category'] = Category::IsExist($id);
if(!$dataView['category'])
{
return view('layouts.error');
}else{
$dataView['title'] = 'name';
$dataView['allCategories'] = Category::Allcategories()->get();
return view('dashboard.category.edit')->with($dataView);
}
}
my problem is when I use method isEXIST if id not found it not redirect to error page but ween i remove ISEXIST AND replace it as below
$dataView['category'] = Category::where(['deleted' => 1, 'id' => $id])->orderBy('id', 'DESC')->first();
it work well .
can any one help me
That's because local scope should return an instance of \Illuminate\Database\Eloquent\Builder. You should remove the first() in the scope and put it in the controller.
Redefine your scope like so:
public function scopeIsExist($query ,$id)
{
return $query->where(['deleted' => 1, 'id' => $id])->orderBy('id', 'DESC');
}
In your controller edit method:
$dataView['category'] = Category::IsExist($id)->first();
You can have a look to the doc for local scopes https://laravel.com/docs/8.x/eloquent#local-scopes
Related
I was trying to add categories to products. I want to do it with a couple table between items and categories. I made a function in my controller to send it to the database. However, when I want to send it, I get the following error, and I don't know I can fix it. Method Illuminate\Database\Eloquent\Collection::attach does not exist.
Controller:
public function store(ItemsValidatorRequest $request)
{
if ($files = $request->image) {
$destinationPath = 'images';
$profileImage = date('YmdHis') . "." . $files->getClientOriginalExtension();
$files->move($destinationPath, $profileImage);
}
else {
return redirect()->back()->with('warning', 'Mislukt');
}
$user = Auth::user()->id;
Item::create([
'user_id' => $user,
'item_title' => $request->titel,
'item_img' => $profileImage,
'item_description' => $request->beschrijving,
'item_price' => $request->prijs,
'item_slug' => $this->slugify($request->titel)
]);
$items = Item::latest()->get();
// line where it goes wrong
$items->each->categories()->attach($request->categories);
return redirect()
->route('admin.items.index')
->with('success', 'Het item is toegevoegd aan je verlanglijst');
}
My model :
public function categories()
{
return $this->belongsToMany('App\Models\Category');
}
Laravels higher order function calls, take a single method call, not multiple. Therefor if you create an helper method on the Item class, it will solve your problem.
class Item {
public function attachCategories($categories) {
$this->categories()->attach($categories);
}
}
Which will make it possible to assign categories like so.
$items->each->attachCategories($request->categories);
I am using OctoberCMS and I have created a custom component. I am trying to create a frontend filter to filter Packages by the Tour they are assigned to.
This is what I have so far. The issue is that the code is looking for a tour field within the packages table rather than using the tour relationship. Does anyone have any ideas?
<?php namespace Jakefeeley\Sghsportingevents\Components;
use Cms\Classes\ComponentBase;
use JakeFeeley\SghSportingEvents\Models\Package;
use Illuminate\Support\Facades\Input;
class FilterPackages extends ComponentBase
{
public function componentDetails()
{
return [
'name' => 'Filter Packages',
'description' => 'Displays filters for packages'
];
}
public function onRun() {
$this->packages = $this->filterPackages();
}
protected function filterPackages() {
$tour = Input::get('tour');
$query = Package::all();
if($tour){
$query = Package::where('tour', '=', $tour)->get();
}
return $query;
}
public $packages;
}
I really appreciate any help you can provide.
Try to query the relationship when the filter input is provided.
This is one way to do it;
public $packages;
protected $tourCode;
public function init()
{
$this->tourCode = trim(post('tour', '')); // or input()
$this->packages = $this->loadPackages();
}
private function loadPackages()
{
$query = PackagesModel::query();
// Run your query only when the input 'tour' is present.
// This assumes the 'tours' db table has a column named 'code'
$query->when(!empty($this->tourCode), function ($q){
return $q->whereHas('tour', function ($qq) {
$qq->whereCode($this->tourCode);
});
});
return $query->get();
}
If you need to support pagination, sorting and any additional filters you can just add their properties like above. e.g;
protected $sortOrder;
public function defineProperties(): array
{
return [
'sortOrder' => [
'title' => 'Sort by',
'type' => 'dropdown',
'default' => 'id asc',
'options' => [...], // allowed sorting options
],
];
}
public function init()
{
$filters = (array) post();
$this->tourCode = isset($filters['tour']) ? trim($filters['tour']) : '';
$this->sortOrder = isset($filters['sortOrder']) ? $filters['sortOrder'] : $this->property('sortOrder');
$this->packages = $this->loadPackages();
}
If you have a more complex situation like ajax filter forms or dynamic partials then you can organize it in a way to load the records on demand vs on every request.e.g;
public function onRun()
{
$this->packages = $this->loadPackages();
}
public function onFilter()
{
if (request()->ajax()) {
try {
return [
"#target-container" => $this->renderPartial("#packages",
[
'packages' => $this->loadPackages()
]
),
];
} catch (Exception $ex) {
throw $ex;
}
}
return false;
}
// call component-name::onFilter from your partials..
You are looking for the whereHas method. You can find about here in the docs. I am not sure what your input is getting. This will also return a collection and not singular record. Use ->first() instead of ->get() if you are only expecting one result.
$package = Package::whereHas('tour', function ($query) {
$query->where('id', $tour);
})->get();
I am creating a web module, and want to get ID of table licensing level two parse into my create method. Hence each ID of level will have a task and the ID need to be stored within my licensing table as a foreign key which reflects ID in Level Two table. How could I solve this, anyone can give me a good suggestion or way on doing this
public function add_show($id)
{
$level = PreLicensingLevelTwo::where('id', $id)->first();
$level->prelicensingtask = PreLicensingTask::where('pre_licensing_level_two_id', $level->id)->with('staff', 'statusdesc', 'prelicensingtaskstaff')->get();
return view('staff.regulatory.statutory.approval.display',compact('level'));
}
public function create()
{
$staff = Staff::pluck('staff_name');
$status = PreLicensingStatus::pluck('status_description', 'id');
return view('staff.regulatory.statutory.approval.create', compact('staff','status'));
}
public function show($id)
{
$one = PreLicensingLevelOne::where('pre_licensing_main_id', $id)->get();
foreach ($one as $key => $license)
{
$license->two = PreLicensingLevelTwo::where('pre_licensing_level_one_id', $license->id)->get();
}
$rendered = view('staff.regulatory.statutory.approval.show')->with('one', $one)->render();
return response()->json(array('status' => 1, 'tableData' => $rendered));
}
With help from my working collegue this is how i able to solve the question i asked
public function store(Request $request)
{
$this->validate($request, [
'task_title' => 'required',
'task_description' => 'required',
'task_due_date' => 'required',
]);
$leveltwo = PreLicensingLevelTwo::find($request->input('pre_licensing_level_two_id'));
$prelicensingtask = new PreLicensingTask;
$prelicensingtask->task_title =$request->input('task_title');
$prelicensingtask->task_description =$request->input('task_description');
$prelicensingtask->task_due_date =$request->input('task_due_date');
$prelicensingtask->created_by_staff_id = Auth::user()->ref_user->staff_id;
$prelicensingtask->status = $request->input('status');
$prelicensingtask->pre_licensing_level_two_id = $leveltwo->id;
$prelicensingtask->pre_licensing_level_one_id = $leveltwo->pre_licensing_level_one_id;
$prelicensingtask->pre_licensing_main_id = $leveltwo->pre_licensing_main_id;
$prelicensingtask->centre_id = Auth::user()->ref_user->centre_id;
$prelicensingtask->save();
return redirect()->back();
}
I have a model that has a one to many relationship to the versions of the description.
In my Controller
$tag = Tags::create([
'name' => $request->get('name'),
'user_id' => \Auth::id(),
]);
$tag->update([
'content' => $request->get('description')
]);
In my Model:
public function setContentAttribute(string $value)
{
$this->versions()->create([
'user_id' => \Auth::id(),
'value' => $value
]);
}
So I can't put content directly as an attribute in the create method because there is no Model right now.
But is it possible to overwrite the create Method?
When I try to overwrite something like this in my Model it will do an infinity loop
public static function create($attr) {
return parent::create($attr);
}
So my question is if it is possible to have something like this:
$tag = Tags::create([
'name' => $request->get('name'),
'user_id' => \Auth::id(),
'content' => $request->get('content')
]);
and in the Model:
public static function create($attr) {
$value = $attr['content'];
$attr['content'] = null;
$object = parent::create($attr);
$object->content = $value;
$object->save();
return $object;
}
Update
I didn't overwrite the create method but called it customCreate. So there is no infinity loop anymore and I can pass all variables to the customCreate function that handles the relationships for me.
Solution
After reading the changes from 5.3 to 5.4 it turns out that the create method was moved so you don't have to call parent::create() anymore.
The final solution is:
public static function create($attr) {
$content = $attr['content'];
unset($attr['content']);
$element = static::query()->create($attr);
$element->content = $content;
$element->save();
return $element;
}
I don't see why not and you could probably implement a more general approach? Eg. checking if set{property}Attribute() method exists, if it does - use it to assign a value, if it doesn't - use mass assigning.
Something like:
public static function create($attr) {
$indirect = collect($attr)->filter(function($value, $property) {
return method_exists(self::class, 'set' . camel_case($property) . 'Attribute');
});
$entity = parent::create(array_diff_key($attr, $indirect->toArray()));
$indirect->each(function($value, $property) use ($entity) {
$entity->{$property} = $value;
});
$entity->save();
return $entity;
}
I haven't really tested it but it should work. I use something like this in one of my Symfony apps.
I have an issue with querying relationships.
I am querying relations between Projects, Companies and Products. However, whenever a Project ID is not present in the database an fatal exception is trown:
Call to a member function companies() on a non-object
public function index($i) {
return $this->returnTop($i, Array(
'projectid' => 5,
'products' => Array(1, 2, 3)
)
);
}
public function returnTop($count = 6, $args = Array()) {
$companies = Project::find($args['projectid'])->companies()->whereHas('products', function($q) use($args) {
$q->whereIn('products.id', $args['products']);
})->with('products')->limit($count)->get();
return Response::json($companies);
}
Now, I know that project id 5 is not present in the DB, and this is likely to be the cause of this error, but I want to return a message instead of the application throwing a fatal error....
Any ideas?
Just check if find() returns null. Something like this:
$project = Project::find($args['projectid']);
if(is_null($project)){
return Response::json(['message' => 'Project not found']);
}
$companies = $project->companies()->whereHas('products', function($q) use($args) {
$q->whereIn('products.id', $args['products']);
})->with('products')->limit($count)->get();
return Response::json($companies);
An alternative would be findOrFail which throws a ModelNotFoundException. You could handle the exception globally or catch it inside the controller:
try {
$companies = Project::findOrFail($args['projectid'])->companies()->whereHas('products', function($q) use($args) {
$q->whereIn('products.id', $args['products']);
})->with('products')->limit($count)->get();
return Response::json($companies);
} catch (\Illuminate\Database\Eloquent\ModelNotFoundException $e){
return Response::json(['message' => 'Project not found']);
}
You first have to test whether the returned object is actually not null. Blindly assuming a database query succeeds is waiting for sh*t to hit the fan.
public function returnTop($count = 6, $args = Array()) {
$project = Project::find($args['projectid']);
if($project) {
$companies = $project->companies()->whereHas('products', function($q) use($args) {
$q->whereIn('products.id', $args['products']);
})->with('products')->limit($count)->get();
return Response::json($companies);
}
else {
return; // .. your error or whatever
}
}
Also the "call to a member function on a non-object" is quite specific, it tells you that a method (member function) could not be called due to the fact that you are trying to call it on a non-object.