I have a newsletter table with this structure:
newsletter table:
id, title, title_color_id, background_color_id, description
And this table will have only one record.
I have a Nova resource to allow to create this initial record:
class Newsletter extends Resource{
public function fields(Request $request)
{
return [
ID::make(__('ID'), 'id')->sortable(),
BelongsTo::make('Bg Color', 'Color', \App\Nova\Color::class),
BelongsTo::make('Text Color', 'Color', \App\Nova\Color::class),
Text::make('Title')->sortable(),
Text::make('Description')->sortable(),
];
}
}
My doub is how to proprly set the relationships on the Newsletter model, because I have two fields that should have an id of a colors table record, but I cannot of course have 2 method colors on the model with those 2 different ccolumns like below. Do you know how to handle this scenario?
The Newsletter model:
class Newsletter extends Model
{
use HasFactory;
protected $table = 'newsletter';
public function color()
{
return $this->belongsTo(Color::class, 'title_color_id');
}
public function color()
{
return $this->belongsTo(Color::class, 'background_color_id');
}
}
This code will not work, you can not have 2 different methods in same class with same name.You need to rename at least one of them.
Relations should look like:
class Newsletter extends Model
{
use HasFactory;
protected $table = 'newsletter';
public function titleColor()
{
return $this->belongsTo(Color::class, 'title_color_id');
}
public function backgroundColor()
{
return $this->belongsTo(Color::class, 'background_color_id');
}
}
Related
What Eloquent model would you use to:
Get all Pages that its Company brand color is red/slug.
Where brand color is a pivot table and stored as an ID on the Company table.
So you have brand_colors id, name, slug, hex
Have company where it has brand_color_id
And Pages that has just the company ID.
I want to grab all pages whose company brand color is X.
How would you go about it?
This table has the company_id
class WebsitePage extends Model
{
use HasFactory;
public function scopeFilter($query, array $filters) {
// Get all pages with a color that the company has
$query->when($filters['color'] ?? false, fn($query, $color) =>
$query->whereHas('color', fn ($query) =>
$query->where('name', $color)
)
);
}
// Where URL slug 'red' color, associated with company brand_color_id matches brandColor slug
// or just simpley call $company->color() ?
public function color()
{
// return $this->with(Company::class, 'brand_color_id');
// return $this->belongsTo(Company::class, 'company_id');
// dd($this->with())
// return Company::with('color.red');
}
This table has brand_color_id, etc.
class Company extends Model
{
use HasFactory;
protected $fillable = [
'user_id',
'name',
'slug',
'description'
];
public function pages() {
return $this->hasMany(WebsitePage::class);
}
public function color() {
return $this->belongsTo(BrandColor::class, 'brand_color_id');
}
}
This table has: id | name | slug | hex
class BrandColor extends Model
{
use HasFactory;
}
So knowing this, how would you get all pages whose company color is the one filtered?
In terms of the page controller, this is what I'm doing:
class PageController extends Controller
{
public function index(WebsitePage $websitePage)
{
// return view('web.inspiration.pages.index', [
// 'pages' => WebsitePage::latest()->paginate(30)
// ]);
return view('web.inspiration.pages.index', [
'pages' => WebsitePage::latest()->filter(
request(['color'])
)->paginate(30)->withQueryString()
]);
}
}
Your model layout isn't described that well, but I think you just want to define a HasOneThrough relationship to join WebsitePage to BrandColor:
class WebsitePage extends Model
{
public function company(): BelongsTo
{
return $this->belongsTo(Company::class);
}
public function color(): HasOneThrough
{
return $this->hasOneThrough(BrandColor::class, Company::class);
}
}
class Company extends Model
{
public function color(): BelongsTo
{
return $this->belongsTo(BrandColor::class);
}
}
class BrandColor extends Model
{
public function company(): HasOne
{
return $this->hasOne(Company::class);
}
}
Then in your controller, just use a condition on your whereHas() and with() calls:
class PageController extends Controller
{
public function index(): View
{
$color = request("color");
$pages = WebsitePage
::whereHas("color", fn ($q) => $q->where("color", $color))
->with(["color" => fn ($q) => $q->where("color", $color)])
->paginate(30)
->withQueryString();
return view("web.inspiration.pages.index", compact($pages));
I have a problem with a many to many relationship and the translations of the terms.
I have 4 tables:
products
- id, price, whatever
products_lang
- id, product_id, lang, product_name
accessori
- id, active
accessori_lang
- id, accessori_id, lang, accessori_name
I'm trying to assign accessories to products with an intermediate table named:
accessori_products
this is the model for Product:
class Product extends Model {
protected $table = 'products';
public function productsLang () {
return $this->hasMany('App\ProductLng', 'products_id')->where('lang','=',App::getLocale());
}
public function productsLangAll() {
return $this->hasMany('App\ProductLng', 'products_id');
}
public function accessori() {
return $this->belongsToMany('App\Accessori', 'accessori_products');
}
}
this is the model for productLng:
class ProductLng extends Model {
protected $table = 'products_lng';
public function products() {
return $this->belongsTo('App\Product', 'products_id', 'id');
}
}
Then I have the model for Accessori:
class Accessori extends Model {
protected $table = 'accessori';
public function accessoriLang() {
return $this->hasMany('App\AccessoriLng')->where('lang','=',App::getLocale());
}
public function accessoriLangAll() {
return $this->hasMany('App\AccessoriLng');
}
public function accessoriProducts() {
return $this->belongsToMany('App\Products', 'accessori_products', 'accessori_id', 'products_id');
}
}
And the model for AccessoriLng:
class accessoriLng extends Model {
protected $table = 'accessori_lng';
public function accessori() {
return $this->belongsTo('App\Accessori', 'accessori_id', 'id');
}
}
I get the results by this:
$products = Product::has('accessori')->with([
'productsLang ',
'accessori' => function ($accessori){
$accessori->with([
'accessoriLang'
]);
}
])->get();
return $products;
but I want to get only the active accessories something like where accessori.active = 1 but I really don't know where to put it. I've tried in different way but I'm stuck on it by 2 days.
IIRC you don't need a model for the intermediate table on your many to many relationships.
If you want to return Products where Accessori is active you can use whereHas on the Product model.
$prod = Product::whereHas('accessori', function($query) {
$query->where('active', 1);
})->get();
Where the $query param will be running on the Accessori model.
You can do the inverse as well with Accessori to Product.
$acessoris = Accessori::where('active', 1)->whereHas('accessoriProduct')->with(['accessoriLang', 'accessoriProducts.productsLang'])->get();
Background: The application in question allows users to apply tags from a list of available tags. One article can have many tags and each tag may belong to many articles. The relationship between those is fine, but the complication comes in that a user should only see the tags which they have applied to the article. For instance, if Alice applies ['Apple', 'Banana', 'Cherry'] to article #1, Alice should not see Bob's article #1 tags of ['Grape', 'Orange', 'Kiwi'].
Ideal: An attach would work where the Auth'd user accesses the tags and applies it to an article by creating records in the intermediate pivot table. Additionally, if a user has applied a tag that does not exist yet, they should be able to insert new tags in the same action.
This action would be similar to how tags are applied to a StackOverflow post, actually.
The code I currently works, but just barely, so I wanted to see how others might organize the relationships between these. I'm also open to using a package if one exists that can handle this logic.
Relationships:
class User extends Authenticatable
{
public function articles()
{
return $this->hasMany('\App\Article');
}
public function articles_tags()
{
return $this->belongsToMany('\App\Article_Tag', 'article_tag_user', 'article_tag_id','user_id');
}
}
class Article extends Model
{
public function tags()
{
return $this->belongsToMany('\App\Tag', 'article_tag');
}
public function user()
{
return $this->belongsTo('\App\User', 'user_id');
}
public function article_tag_user()
{
return $this->hasManyThrough('\App\Tag', '\App\Article_Tag_User', 'article_id', 'id', 'article_id', 'tag_id');
}
}
class Tag extends Model
{
protected $fillable = [
'name'
];
public function user()
{
return $this->belongsToMany('\App\User', 'article_tag_user', 'id', 'article_tag_id');
}
public function articles()
{
return $this->belongsToMany('\App\Article', 'article_tag');
}
}
class Article_Tag extends Model
{
protected $table = 'article_tag';
public function user()
{
return $this->belongsToMany('\App\User', 'article_tag_user', 'user_id', 'article_tag_id');
}
public function tags()
{
return $this->belongsTo('\App\Tag');
}
}
class Article_Tag_User extends Model
{
protected $table = 'article_tag_user';
public function tags()
{
return $this->hasManyThrough('\App\Tag', '\App\Article_Tag');
}
}
Table Schema
Tag Table
|id|name|
Article_Tag Table
|id|article_id|tag_id|
Article_Tag_User
|id|user_id|article_tag_id|
You only need one pivot table (it also doesn't need an id):
article_tag_user: article_id | tag_id | user_id
Then you have BelongsToMany relationships between all combinations of Article, Tag, User.
I have Course and Category Models with many to many relationship between them. So I created CategoryCourse Model to decompose relationship. Here are my three models:
class CategoryCourse extends Model
{
private $foreignkeys = [
'$category_id','$course_id'
];
public function categories()
{
return $this->belongsToMany('App\Category');
}
public function courses()
{
return $this->belongsToMany('App\Course');
}
}
class Category extends Model
{
protected $title = ['title'];
public function categorycourse()
{
return $this->hasMany('App\CategoryCourse');
}
}
class Course extends Model
{
protected $fillable = [
'title', 'desc'
];
public function categorycourse()
{
return $this->hasMany('App\CategoryCourse');
}
}
In my controller I have method as follows:
public function getCoursesByCategory(Request $request, $id)
{
$id = Hashids::decode($id);
$categories = Category::findOrFail($id[0]);
$courses = $categories->categorycourse()->get();
return view('courses',compact('courses'));
}
I have three tables in database, they are categories, courses and category_courses. My view is displaying results from category_courses but not results from courses. I am learning laravel. Can any one please help? I want to display all courses that belong to a category, in my view.
Here is my view code:
#foreach($courses as $course)
{{$course->title}}
#endforeach
You have to change your code to:
class Category extends Model
{
protected $title = ['title'];
public function courses()
{
return $this->belongsToMany('App\Course', 'category_course', 'category_id', 'course_id');
}
}
The relationship should be in Category only.
And then you call:
$courses = $categories->courses;
Consider the following table structure:
user table
id
name
lang_region_id
lang_region table
id
lang_id
region_id
lang table
id
name
region table
id
name
Fairly new to the Laravel framework, but trying to setup Eloquent models and relationships to an existing database. I want to establish the relationship between my user model and the lang and region models. The lang_region table defines what language and region combinations are available and then we can link each user to a valid combination.
I have read through the Laravel documentation several times looking for the proper relationship type, but is seems that the Many to Many and Has Many Through relationships are close, but since our user.id isn't used in the intermediate table I may be out of luck.
Sorry for the amateur question, but just getting used to Laravel and ORMs in general.
I would use the lang_region table as both a pivot table and a regular table with its own model.
class LangRegion extends model
{
protected $table = 'lang_region';
public function language()
{
return $this->belongsTo(Language::class, 'lang_id');
}
public function region()
{
return $this->belongsTo(Region::class);
}
public function users()
{
return $this->hasMany(User::class);
}
}
class User extends model
{
protected $table = 'user';
public function langRegion()
{
return $this->belongsTo(LangRegion::class);
}
}
class Language extends model
{
protected $table = 'lang';
public function regions()
{
$this->belongsToMany(Region::class, 'lang_region', 'lang_id', 'region_id');
}
public function users()
{
$this->hasManyThrough(User::class, LangRegion::class, 'lang_id', 'lang_region_id');
}
}
class Region extends model
{
protected $table = 'region';
public function languages()
{
$this->belongsToMany(Language::class, 'lang_region', 'region_id', 'lang_id');
}
public function users()
{
$this->hasManyThrough(User::class, LangRegion::class, 'region_id', 'lang_region_id');
}
}
If I understand what you want correctly:
class User extends Model {
private function lang_region() {
return $this->hasOne(LangRegion::class)
}
public function lang() {
return $this->lang_region()->lang();
}
public function region() {
return $this->lang_region()->region();
}
}
class LangRegion extends Model {
public function lang() {
return $this->belongsTo(Lang::class);
}
public function region() {
return $this->belongsTo(Region::class);
}
}