I am trying to get the posts that belong to each category, i had this working before but i can't seem to find what i have done wrong here.
I have a Post Table and a Categories Table
ROUTE
Route::get('articles/category/{id}', ['as' => 'post.category', 'uses' => 'ArticlesController#getPostCategory']);
CONTROLLER
public function getPostCategory($id)
{
$postCategories = PostCategory::with('posts')
->where('post_category_id', '=', $id)
->first();
$categories = PostCategory::all();
// return view
return view('categories.categoriesposts')->with('postCategories', $postCategories)->with('categories', $categories);
}
VIEW
#foreach($postCategories->posts as $post)
<div class="well">
<div class="media">
<a class="pull-left" href="#">
<img class="media-object" src="http://placekitten.com/150/150">
</a>
<div class="media-body">
<h4 class="media-heading">{{ substr($post->title, 0, 50) }}</h4>
<p class="text-right">By Francisco</p>
<p>{{ substr($post->body, 0, 90) }}</p>
<ul class="list-inline list-unstyled">
</ul>
</div>
</div>
</div>
#endforeach
POST MODAL
public function postCategory()
{
return $this->belongsTo('App\PostCategory');
}
POSTCATEGORY MODAL
class PostCategory extends Model
{
// connect Categories to Posts tables
protected $table = 'post_categories';
// Category belongs to more than 1 post
public function posts()
{
return $this->hasMany('App\Post', 'post_category_id');
}
}
I can't see what i am doing wrong every time I go to a category it shows
Trying to get property of non-object
Any help will be much appreciated thanks
replace your lines:
$postCategories = PostCategory::with('posts')
->where('post_category_id', '=', $id)
->first();
with:
$postCategories = PostCategory::find($id)->posts;
Change your line in your PostCategoryModel to:
return $this->hasMany('App\Post', 'post_category_id','post_category_id');
Related
my questions may be a bit of a beginner, but please be patient, thank you
I want to display the projects related to each category in the following code in the second foreach, but now all the projects are displayed
view
#foreach($categories as $category)
<div id="section-{{ $category->id }}" class="section">
<h3 class="fnt_gh fnt-color">{{ $category->category_project }}</h3>
<div class="bigBox">
<div class="container1">
#foreach($projects as $project)
<article class="barghabi">
<a href="#" data-cat="news" data-state="vic">
<img src="{{ $project->image_project }}" alt="">
<h6 class="fnt_gh" style="line-height: normal;">
{{ $project->title_project }}
</h6>
</a>
</article>
#endforeach
<div class="content"></div>
</div>
</div>
</div>
#endforeach
And a categories table and a project table whose models and relationships are as follows:
class Project extends Model
{
protected $fillable = [
'title_project' ,
'period_project' ,
'description_project' ,
'manager_project' ,
'phone_project' ,
'email_project' ,
'image_project'
];
public function categories()
{
return $this->belongsToMany(Category::class);
}
}
class Category extends Model
{
protected $fillable = ['category_project' , 'icon_project'];
public function projects()
{
return $this->belongsToMany(Project::class);
}
}
and pivot :
Schema::create('category_project', function (Blueprint $table) {
$table->unsignedBigInteger('category_id');
$table->foreign('category_id')->references('id')->on('categories')->onDelete('cascade');
$table->unsignedBigInteger('project_id');
$table->foreign('project_id')->references('id')->on('projects')->onDelete('cascade');
$table->primary(['category_id' , 'project_id']);
$table->timestamps();
});
controller:
class ProjectController extends Controller
{
/**
* Display a listing of the resource.
*
* #return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
*/
public function index()
{
$categories = Category::all();
$projects = Project::all();
return view('home.fa.pages.project.index', compact('categories' , 'projects' ));
}
}
You are calling #foreach($projects as $project) within your loop. You've defined $projects as all projects. Instead, use #foreach($category->projects as $project).
#foreach($categories as $category)
<div id="section-{{ $category->id }}" class="section">
<h3 class="fnt_gh fnt-color">{{ $category->category_project }}</h3>
<div class="bigBox">
<div class="container1">
#foreach($category->projects as $project)
<article class="barghabi">
<a href="#" data-cat="news" data-state="vic">
<img src="{{ $project->image_project }}" alt="">
<h6 class="fnt_gh" style="line-height: normal;">
{{ $project->title_project }}
</h6>
</a>
</article>
#endforeach
<div class="content"></div>
</div>
</div>
</div>
#endforeach
I'm not sure what's in $category->category_project but having a property with the same name as your pivot table is bound to create confusion. You should keep column names simple and readable, not append _project to each one!
I'm new to Laravel and I'm trying to get one of the values in one collection by one ID retrieved from another collection.
My function returns 2 Collections:
public function index()
{
$category = BlogCategory::all(['id', 'name']);
$post = BlogPost::orderBy('id', 'desc')->take(14)->get();
return view('blog.index', ['posts' => $post], ['categories' => $category]);
}
In a foreach loop I'm getting values from collections:
#foreach($posts as $post)
#if($loop->iteration > 2)
<div class="col-sm-6 col-md-3 d-flex justify-content-center other-post">
<a href="#">
<img src="#" alt="">
<p class="post-category">{{ $categories->get($post->category_id) }}</p>
<h5 class="post-title">{{ $post->title }}</h5>
</a>
</div>
#endif
#endforeach
I'm partially getting the result as you can see in the image below, but I want to get only the name.
Here is the code that I'm trying to figure out
{{ $categories->get($post->category_id) }}
If there is a better or correct way to do it, let me know.
Blog Posts migration:
public function up()
{
Schema::create('blog_posts', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('title');
$table->longText('content');
$table->mediumText('slug');
$table->bigInteger('author_id')->unsigned();
$table->bigInteger('category_id')->unsigned();
$table->timestamps();
$table->foreign('author_id')->references('id')->on('blog_authors');
$table->foreign('category_id')->references('id')->on('blog_categories');
});
}
You should put in place the relationships between BlogPost and BlogCategory models, seen that you already have a category_id field in BlogPost model, i.e.:
in BlogPost Model:
public function category(){
return $this->belongsTo(\App\BlogCategory::class);
}
in BlogCategory Model:
public function posts(){
return $this->hasMany(\App\BlogPost::class);
}
Next you can eager load categories with the $posts in your controller with only two queries:
public function index()
{
$posts = BlogPost::with('category')->orderBy('id', 'desc')->take(14)->get();
return view('blog.index', compact('posts'));
}
Then in your view you can access each $post->category object directly because eager loaded in the controller:
#foreach($posts as $post)
#if($loop->iteration > 2)
<div class="col-sm-6 col-md-3 d-flex justify-content-center other-post">
<a href="#">
<img src="#" alt="">
<p class="post-category">{{ $post->category->name }}</p>
<h5 class="post-title">{{ $post->title }}</h5>
</a>
</div>
#endif
#endforeach
It could be optimized, first, you need to make relation one to many from categories to posts
first: make sure that you have in posts migrations category_id column
Second: Open Category Model and write this method this will allow you to fetch posts that belong to the category
public function posts(){
return $this->hasMany(\App\Post::class);
}
Third: open shop model and write this method this will allow you to fetch category that belongs to the post
public function catgeory(){
return $this->belongsTo(\App\Category::class);
}
Finally: you will edit your view like this one
#foreach($posts as $post)
<div class="col-sm-6 col-md-3 d-flex justify-content-center other-post">
<a href="#">
<img src="#" alt="">
<p class="post-category">{{ $post->category->title }}</p>
<h5 class="post-title">{{ $post->title }}</h5>
</a>
</div>
#endforeach
and of course, you wouldn't call categories in your controller anymore
public function index()
{
$post = BlogPost::orderBy('id', 'desc')->take(14)
->with('category')->get();
return view('blog.index', ['posts' => $post]);
}
Maybe it better use a relation to drive this situation. You can load in the controller the data in this way.
In the Model Post:
function categories(){
return $this->belongsToMany('App\BlogCategory')->select(array('id', 'name');
}
Maybe is hasOne -> the relationship if you don't have a table pivot...
In the Controller:
public function index()
{
$data['posts'] = BlogPost::orderBy('id', 'desc')->take(14)->with('categories')->get();
return view('blog.index', $data);
}
In the View:
#foreach($posts as $post)
#if($loop->iteration > 2)
<div class="col-sm-6 col-md-3 d-flex justify-content-center other-post">
<a href="#">
<img src="#" alt="">
<p class="post-category">{{ $post->categories->name }}</p>
<h5 class="post-title">{{ $post->title }}</h5>
</a>
</div>
#endif
#endforeach
this line $categories->get($post->category_id) return for you an array of category, so the solution for you here is just like bellow:
{{ $categories->get($post->category_id)['name'] }}
I am using Laravel-nestedset and am having a hard time querying the ancestrosOf my category model.
This is what I am trying to do:
Works
http://carnival-experts.test/categories (this gives me a list of all categories)
http://carnival-experts.test/categories/carnival-games (this gives me a list of all Carnival Games)
Does Not Work
http://carnival-experts.test/categories/carnival-games/large-scale-games (this shows me a list of Carnival Games and not the Large Scale Games category)
I am sure this is just my lack of understanding--any help appreciated.
web.php
...
Route::get('/', 'CategoryController#index')->name('categories');
Route::get('/{category}/{slug?}', 'CategoryController#show')->name('show');
...
CategoryController.php
...
class CategoryController extends Controller
{
public function index()
{
$categories = Category::get()->toTree();
return view('categories.index', compact('categories'));
}
public function show(Category $category, $slug = null)
{
if (!is_null($slug)) {
$categories = Category::ancestorsOf($category);
return view('categories.show_subcategory', compact('categories', 'category', 'slug'));
} else {
return view('categories.show', compact('category'));
}
}
}
show_category.blade.php
...
#foreach($category['children']->chunk(3) as $chunk)
<div class="row">
#foreach($chunk as $category)
<div class="col-md-4" style="margin-bottom: 2rem">
<div class="feature-box center media-box fbox-bg">
<div class="fbox-media">
<a href="/categories/{{$category->slug}}">
<img class="image_fade"
src="https://*****.s3-us-west-1.amazonaws.com/{{ $category->photo }}"
alt="Featured Box Image"
style="opacity: 1;"></a>
</div>
<div class="fbox-desc">
<h3>{{$category->name}}</h3>
<span>Learn More</span>
</div>
</div>
</div>
Products
#if(count($category->products) > 0)
#foreach($category->products as $product)
{{$product->title}}
#endforeach
#endif
#endforeach
</div>
#endforeach
...
Looking to solve this error that I'm getting when trying to display some data to the view. I'm working with v5.7 and I have a feeling it might be something with the index method in my controller, I could be very wrong. If there is any more info that is needed please let me know.
Trying to get property 'slug' of non-object (0)
Route:
Route::get('/category/{category}','BlogController#category')->name('category');
BlogCategory Model
namespace App;
use Illuminate\Database\Eloquent\Model;
class BlogCategory extends Model
{
protected $fillable = ['title', 'slug'];
public function posts()
{
return $this->hasMany(Post::class);
}
public function getRouteKeyName()
{
return 'slug';
}
}
Post Model
public function category()
{
return $this->belongsTo(BlogCategory::class);
}
Controller:
protected $limit = 3;
public function index()
{
$categories = BlogCategory::with(['posts' => function ($query) {
$query->published();
}])->orderBy('title', 'asc')->get();
$posts = Post::with('author')
->latestFirst()
->published()
// ->filter(request()->only(['term','year','month']))
->simplePaginate($this->limit);
return view('pages.frontend.blog.index', compact('posts', 'categories'));
}
public function category(BlogCategory $category)
{
$categoryName = $category->title;
$categories = BlogCategory::with(['posts' => function ($query) {
$query->published();
}])->orderBy('title', 'asc')->get();
$posts = $category->posts()
->with('author')
->latestFirst()
->published()
->simplePaginate($this->limit);
return view("pages.frontend.blog.index", compact('posts', 'categories', 'categoryName'));
}
View:
#foreach ($posts as $post)
<article class="post-item">
#if ($post->image_url)
<div class="post-item-image">
<a href="{{ route('blog.show', $post->slug) }}">
<img src="{{ $post->image_url }}" alt="">
</a>
</div>
#endif
<div class="post-item-body">
<div class="padding-10">
<h2>
{{ $post->title }}
</h2>
{!! $post->excerpt_html !!}
</div>
<div class="post-meta padding-10 clearfix">
<div class="pull-left">
<ul class="post-meta-group">
<li>
<i class="fa fa-user"></i>
{{ $post->author->name }}
</li>
<li>
<i class="fa fa-clock-o"></i>
<time> {{ $post->date }}</time>
</li>
<li>
<i class="fa fa-folder"></i>
{{ $post->category->title }}
</li>
<li>
<i class="fa fa-comments"></i>
4 Comments
</li>
</ul>
</div>
<div class="pull-right">
Continue Reading ยป
</div>
</div>
</div>
</article>
#endforeach
Post table
Blog Cats table
The belongsTo function accepts a second argument for the name of the foreign key in your posts table, if you do not provide it the framework will try to guess what is the foreign key column name giving the name of the function as pattern, in your case category(), so the framework is searching for category_id, however, your foreign key column name is blog_category_id.
public function category()
{
return $this->belongsTo(BlogCategory::class, 'blog_category_id');
}
You should call the category relationship in the index of your controller, if this view is related to the index method!
public function index()
{
$categories = BlogCategory::with(['posts' => function ($query) {
$query->published();
}])->orderBy('title', 'asc')->get();
$posts = Post::with('author')
->category()
->latestFirst()
->published()
// ->filter(request()->only(['term','year','month']))
->simplePaginate($this->limit);
return view('pages.frontend.blog.index', compact('posts', 'categories'));
}
I have a category table, it is organized by 'parent_id' and 'categoryid'. I need to organize it in a list, where I group the parent class with the daughter class.
I created this code.
In the controller I get the value of the categories.
public function index()
{
$cat1 = Category::where('erp_parentid', '=', 0)->get();
foreach($cat1 as $categoria1){
$cat2 = Category::where('erp_parentid', '=', $categoria1->erp_categoryid)->get();
return view('admin.categories')->with('cat1', $cat1)->with('cat2', $cat2);
}
}
$cat2 is the child category, I get its values through the categoryid of the parent category.
But when I pass the values to the view, all parent categories take the same value as the first.
I used that code to display the values in the view:
<div class="container">
<div class="row">
<ul class="list-group">
#foreach($cat1 as $value)
<a data-toggle="collapse" data-target="#catfilha{{$value->erp_categoryid}}"><li class="list-group-item">{{$value->erp_name}}</li></a>
<ul id="catfilha{{$value->erp_categoryid}}" class="collapse">
#foreach($cat2 as $value2)
<li>{{$value2->erp_name}}</li>
#endforeach
</ul>
#endforeach
</ul>
</div>
</div>
I searched for similar cases here on the site, but found no resemblance, any suggestions? Thank you in advance.
You should define the relations in the model and call them in the view. Try something like this:
In Category Model:
public function getParent()
{
return self::where('erp_parentid', '=', $this->erp_categoryid)->get();
}
In Controller:
public function index()
{
$cat1 = Category::where('erp_parentid', '=', 0)->get();
return view('admin.categories')->with('cat1', $cat1);
}
In the View:
<div class="container">
<div class="row">
<ul class="list-group">
#foreach($cat1 as $value)
<a data-toggle="collapse" data-target="#catfilha{{$value->erp_categoryid}}"><li class="list-group-item">{{$value->erp_name}}</li></a>
<ul id="catfilha{{$value->erp_categoryid}}" class="collapse">
#foreach($value->getParent() as $value2)
<li>{{$value2->erp_name}}</li>
#endforeach
</ul>
#endforeach
</ul>
</div>
</div>
In your code, the return statement is inside the loop, so cat2 will be always the categories from the first item of cat1.