Retrieving from DB in laravel - laravel-5

I'm trying to retrieve a column from a localhost db using laravel framework and i get this error:
ErrorException in cd582248476d4ab73365f604ce058f390fc48144.php line
10: Undefined variable: Delivery (View:
C:\xampp\htdocs\testt\resources\views\Delivered.blade.php)
#extends('layouts.master')
#section('title')
Pharmacies
#endsection
#section('content')
<section class="row posts">
<div class="col-md-6 col-md-offset-3">
<header><h3>Details of Delivered Orders</h3></header>
#foreach ($Delivery as $Delivery) {
echo $Delivery->Address;
}
#endforeach
}
</div>
</section>
#endsection
<?php
namespace App\Http\Controllers;
use App\User;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Collection;
class DeliveredController extends Controller
{
public function getDeliveredPage()
{
return view('Delivered');
}
public function index()
{
$Delivery = Delivery::all()->get();
return view('Delivered' ,['Delivery'=>$Delivery]);
}

You don't need to use ->get() after all().
Also, it's better to use a different variable for your collection and your items.
And quick tip for the section in Blade, you can use this:
#section('title', 'Pharmacies')
instead of this
#section('title')
Pharmacies
#endsection
Here's your updated code:
#extends('layouts.master')
#section('title', 'Pharmacies')
#section('content')
<section class="row posts">
<div class="col-md-6 col-md-offset-3">
<header><h3>Details of Delivered Orders</h3></header>
#foreach ($deliveries as $delivery)
{{ $delivery->Address }}
#endforeach
</div>
</section>
#endsection
<?php
namespace App\Http\Controllers;
use App\User;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Collection;
class DeliveredController extends Controller
{
public function getDeliveredPage()
{
return view('Delivered');
}
public function index()
{
$deliveries = Delivery::all();
return view('Delivered', compact('deliveries'));
}

Related

The #edit Route is not working... showing 404 not found

the #edit route is not creating. everything is ok but showing 404 not found
the problem is on the last route. I ran the php artisan route:list code but not showing any route named /profile/{user}/edit
the web.php code ->>>>>
<?php
use Illuminate\Support\Facades\Route;
use App\Http\Controllers\ProfilesController;
/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/
Route::get('/', function () {
return view('welcome');
});
Auth::routes();
Route::get('/p/{post}','App\Http\Controllers\PostsController#show');
Route::get('/p/create','App\Http\Controllers\PostsController#create');
Route::post('/p','App\Http\Controllers\PostsController#store');
Route::get('/profile/{user}', [App\Http\Controllers\ProfilesController::class, 'index'])->name('profile.show');
Route::get('/profile/{user}/edit','ProfilesController#edit')->name('profile.edit');
the profiles controller code ->>>>>
<?php
namespace App\Http\Controllers;
use App\Models\User;
use Illuminate\Http\Request;
class ProfilesController extends Controller
{
public function edit(User $user)
{
return view('profiles.edit', compact('user'));
}
public function index(User $user)
{
return view('profiles.index', compact('user'));
}
}
the index.blade.php code --->>>>>>>>>>>>>>>
#extends('layouts.app')
#section('content')
<div class="container">
<div><h1>here is a big design</h1></div>
<br>
<div class="d-flex justify-content-between align-items-baseline">
<h1>{{ $user->username}}</h1>
Add New Post
</div>
Edit Profile
<div class="pr-5"><strong>{{$user->posts->count()}}</strong> posts</div>
<div class="pr-5"><strong></strong> followers</div>
<div class="pr-5"><strong></strong> following</div>
<br>
<div><h1>{{ $user->profile->title}}</h1></div>
<br>
<div><h1>{{ $user->profile->description}}</h1></div>
<br>
<div><h1>{{ $user->profile->url ?? 'N/A'}}</h1></div>
<h1>Posts</h1>
<hr>
<div class="row pt-5">
#foreach($user->posts as $post)
<div class="col-4 pb-4">
<a href="/p/{{$post->id}}">
<img src="/storage/{{$post->image}}" class="w-100">
</a>
</div>
#endforeach
</div>
</div>
#endsection
Change your route to
Route::get('/profile/{user}/edit',[ProfilesController::class, 'edit'])->name('profile.edit');
Your way 'ProfilesController#edit' doesn't take use App\Http\Controllers\ProfilesController; into account.
Offtopic suggestion: since you already named your routes I suggest you use the named routes in your blade files instead of hardcoding them:
Edit Profile
instead of
Edit Profile
This way, should you decide to change a URL some time later, you only need to change it in your web.php file once, not all of your hardcoded occurences

Showing data from database using Laravel Eloquent Model

So, I'm quite new to Laravel and what I am trying to achieve is to display some string from my data to a page. I'm using Eloquent Model and I can't figure out what I do wrong here. I've attached some of my code below. I hope I make it clear enough.
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Product;
class ProductsController extends Controller
{
public function index()
{
$products = Product::all();
return view('products.index')->with('products', $products);
}
Here's where I want the data to be displayed.
#extends ('layouts.app')
#section ('content')
<div class="container-fluid">
<h1>Products</h1>
#if(count($products) > 1 )
#foreach ($products as $product)
<div class="well">
<h3>{{$product->prod_name}}</h3>
</div>
#endforeach
#else
<p>No product found</p>
#endif
</div>
#endsection
UPDATED: The problem is with my loop logic
Since I have only one item inside my database, my loop is supposed to be >= 1 instead of > 1
#if(count($products) >= 1 )
#foreach ($products as $product)
<div class="well">
<h3>{{$product->prod_name}}</h3>
</div>
#endforeach
#else
<p>No product found</p>
#endif
Let's fix up your code and use the correct approach.
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Product;
class ProductsController extends Controller
{
public function index()
{
$products = Product::all();
return view('products.index', compact('products'));
}
Notice how I've passed an array via compact as the 2nd parameter of the view function. You can also use view('products.index', ['products' => $products]), I just prefer compact as it is cleaner.
#extends('layouts.app')
#section('content')
<div class="container-fluid">
<h1>Products</h1>
#if(!$products->isEmpty())
#foreach($products as $product)
<div class="well">
<h3>{{ $product->prod_name }}</h3>
</div>
#endforeach
#else
<p>No products found.</p>
#endif
</div>
#endsection
Notice how I've made use of isEmpty, which checks if a collection (obtained here from Eloquent) is empty or not.
Instead of with() maybe View::share can work.
$products = Product::all();
View::share('$products',$products);
return view('products.index');
And dont forget to import View class from Facades. Put this at the begining of page
use Illuminate\Support\Facades\View;

Undefined variable Laravel (strange case)

I am m having this annoying problem. Can anyone give a hand to sort out it? I read all posts and I cannot find the solution.
This is my controller
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use Auth;
use DB;
use App\Post;
use App\RegisteredCourse;
class DashboardsController extends Controller
{
public function indexA()
{
return view('dashboards.admin-dashboard');
}
public function indexS()
{
$id = Auth::user()->id;
$courses = DB::table('registered__courses')->select('user_id')->where('user_id', '=', $id)->count();
$posts = Post::all();
return view('dashboards.student-dashboard', compact('id', 'courses', 'posts'));
}
public function indexT()
{
return view('dashboards.teacher-dashboard');
}
}
This is a fragment of the blade view. The name of the view is dashboards.student-dashboard
<div class="col-md-12">
<div class="card">
<div class="card-header">
<h3 class="card-title">Posts</h3>
</div>
<div class="card-body">
<div class="tab-content">
<div class="active tab-pane" id="activity">
<!-- Post -->
<!--forEACH-->
#foreach ($posts as $post)
<div class="post">
<div class="user-block">
<span class="username">
{{$post->title}} | {{$post->author}}
</span>
<span class="description">{{optional($post->created_at)->format('d-m-Y')}}</span>
</div>
<!-- /.user-block -->
<p>
{{$post->content}}
</p>
</div>
#endforeach
</div>
</div>
</div>
</div>
</div>
And these are the routes
Route::group(['prefix' => 'dashboard',], function () {
Route::get('/admin', 'DashboardsController#indexA')->name('dashboards.indexA');
Route::get('/teacher', 'DashboardsController#indexT')->name('dashboards.indexT');
Route::get('/student', 'DashboardsController#indexS')->name('dashboards.indexS');
});
I tried to pass al the variable to the view and I always have the same problem. ("Undefined variable").It seems like blocked the possibility to pass variable to the blade view.
What I did before:
1-dd($posts) It does not working, it appears the exception "Undefined variable: posts".
2- I remove the whole content of the blade file and I tried with a simple varible and it stills appearing the exception "Undefined variable".
3- I ran php artisan view:clear and restarted the server.
Any sugestions?
Thank you very much.
Instead of
return view('dashboards.student-dashboard', compact('id', 'courses', 'posts'));
try
return view('dashboards.student-dashboard', ['id'=>$id, 'courses'=>$courses, 'posts'=>$posts]);

Laravel reports error "Parameter must be an array or an object that implements Countable"

This is the error:
"count(): Parameter must be an array or an object that implements
Countable (View: C:\xampp\htdocs\blog\resources\views\inc\sidebar.blade.php)"
This is my views/inc/sidebar.blade.php:
#if(count($articles)>0)
#foreach($articles as $article)
{{$article->title}}
#endforeach
#endif
Here is my controller:
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Article;
class HomepageController extends Controller
{
public function sidebar(){
$articles = Article::orderBY('created_at', 'desc')->where('active', '1')->take(2)->get();
return view('inc.sidebar')->with('articles', $articles);
}
}
And on my views/pages/view_article.blade.php
#extends('layouts.layout')
#section('content')
<div class="container">
<div class="row no-gutters" style="margin-top: 10px;margin-left: 5px;margin-right: 5px; min-height: 450px;">
<div class="col-md-9 tex-justify">
<table class="table-responsive">
<tr><td>{{$articles->title}}</td></tr>
<tr><td>{{$articles->created_at->format('M d Y')}}</td></tr>
</table>
<img src="/img/{{$articles->img_article}}">{!!$articles->body!!}</div>
</div>
<div class="col-md-3">
#include('inc.sidebar')
</div>
</div>
</div><br>
#endsection
What am I doing wrong?
The use of orderBY instead of orderBy might be the problem, but if that's not the issue, try replacing:
$articles = Article::orderBY('created_at', 'desc')->where('active', '1')->take(2)->get();
with:
$articles = Article::orderBy('created_at', 'desc')->where('active', '1')->take(2)->get()->all();
The reason behind this is that Illuminate\Database\Query\Builder::get returns an Illuminate\Support\Collection, not an array, whereas Illuminate\Support\Collection::all returns a straight array containing the items in the collection which works with count.
Use #if(isset($articles[0]->id) instead of #if(count($articles)>0)

Undfined variable 'posts' - Laravel 5

In my ShowController, I returned a view with variable posts, like
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Depress;
use DB;
use App\Http\Requests;
class ShowController extends Controller
{
public function showPost(Request $request)
{
$posts = Depress::all();
return view('homeview')->with('posts', $posts);
}
}
And in my, homeview.blade.php ,
#foreach($posts as $post)
<div class="panel panel-default">
<div class="panel-heading">{{ $post->name }}</div>
<div class="panel-body">
{{ $post->depression }}
</div>
</div>
#endforeach
But, it's showing,
Undefined Variable: posts
Can anyone please help ?
The posts variable is in session. So use Session::get('posts') to get it.
Or use return view('homeview', compact('posts')); and $posts will be available in view as php variable.
add use App\Post; to your ShowController

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