In my project I want show name in category and province table and this table i relation with it in user table.
This is my code.
In controller:
$user=user::with('province','category')->where([['id',$id]])->first();
In model:
//relation with province model (invert relation)
public function province()
{
return $this->belongsTo('App\Model\province');
}
//relation with province model (invert relation)
public function category()
{
return $this->belongsTo('App\Model\category');
}
But in return just id is returned not name and other property.
In output show this:
category_id: 3
province_id: 6
Wrong $user=user::with('province','category')->where([['id',$id]])->first();
//Use
$user=user::with(['province','category'])->where('id', $id)->first();
Put the foreign key and local key to relatioships.
public function province()
{
return $this->belongsTo('App\Model\province','foreign_key','local_key'); // put your FK and LK here
}
public function category()
{
return $this->belongsTo('App\Model\category','foreign_key','local_key'); // put your FK and LK here
}
You can get the result by
$user=user::where('id','=',$id)->first();
if(isset($user))
{
if(isset($user->province))
{
//do whatever you want
}
if(isset($user->category))
{
//do whatever you want
}
}
Related
I would like to retrieve all products of chosen parent category.Product model have hasmany relation to product_category_mapping table.
If product have subcategory result like,
"MAinCatergory":[
{
id="",
name:"Drinks",
"ChildCategory":[
{
"id":1,
"name":"Juce",
"Products":[{
name:"apple juce",
price:10,
....
}]
}
]
}
]
}
If product under main category only return array like,
"MAinCatergory":[
{
id="",
name:"Drinks",
"Products":[{
name:"apple juce",
price:10,
....
}]
}
}
]
}
category table fields - id,name,parent_id
product table fields - id,name,price,..,
product-category-mapping table fields - id,category_id,product_id
category model
public function children()
{
return $this->hasMany('App\Models\Category', 'parent_id');
}
public function parent()
{
return $this->belongsTo('App\Models\Category', 'parent_id');
}
public function product_category()
{
return $this->hasMany('App\Models\ProductCategoryMapping', 'category_id');
}
product model
public function product_category()
{
return $this->hasMany('App\Models\ProductCategoryMapping','product_id');
}
product-category_mapping
public function product()
{
return $this->belongsTo(Product::class,'product_id','id');
}
public function category()
{
return $this->belongsTo(Category::class,'category_id','id');
}
Something like this might suffice.
App\Models\Category::with('children', 'product_category.product')->get()
Suggestion, try implement pivot many to many relation instead this product_category_mapping, then model relation would change a bit.
For pivot relation, you need to modify the Category model
public function products()
{
return $this->belongsToMany('App\Models\Product', 'product-category-mapping');
}
and in product Model
public function categories()
{
return $this->belongsToMany('App\Models\Category','product-category-mapping');
}
Note:This is not the complete integration, but to give you an idea, for full logic see https://laravel.com/docs/9.x/eloquent-relationships#many-to-many
in your product model add like this:
public function product_categorys(){
return $this->hasMany('App\Models\ProductCategoryMapping','product_id');
}
and in controller you can get inside your function like this Product::with('product_categorys')->get();
I am writing a nested query with Laravel.
Namely First, the Truck information is drawn, then I list the data of the vehicle with "truck_history", there is no problem until here, but I want to show the information of the invoice belonging to the "invoice_id" in truck_history. but I couldn't understand how to query, I want to do it in the model, is this possible? If possible, how will it be done?
"ID" COLUMN IN INVOICE TABLE AND "invoice_id" in "InvoiceDetail" match.
TruckController
public function getTruck($id)
{
$truck = Truck::with(['truckHistory'])->find($id);
return $truck;
}
Truck Model
protected $appends = ['company_name'];
public function companys()
{
return $this->belongsTo(Contact::class, 'company_id', 'id');
}
public function getCompanyNameAttribute()
{
return $this->companys()->first()->name;
}
public function truckHistory(){
return $this->hasMany(InvoiceDetail::class,'plate_no','plate');
}
So you can add another relationship in the InvoiceDetail::class and add in the truck history.
try something like this:
public function truckHistory(){
return $this->hasMany(InvoiceDetail::class,'plate_no','plate')->with('Invoice');
}
Simply add the following relations (if you don't already have them):
Invoice model :
public function truckHistory()
{
return $this->hasOne(InvoiceDetail::class);
}
InvoiceDetail model :
public function invoice()
{
return $this->belongsTo(Invoice::class);
}
And you can get the relation invoice of the relation truckHistory adding a point as separator :
public function getTruck($id)
{
$truck = Truck::with(['truckHistory.invoice'])->find($id);
return $truck;
}
i have a relation between User model and Friend model
User.php
public function friends()
{
return $this->hasMany(Friend::class);
}
the relation actually returns all the records where the foreign key column (user_id) between User and Friend equals the current user's id but i want to return also the records where current user's id is in another column in friends table which's name is friend_id, this is my try
public function friends()
{
return $this->hasMany(Friend::class,'user_id','friend_id');
}
it's actually not returning the correct records
I don't think there is a direct way to that but you could try making 2 relations and merge them into one relation
public function friends() {
return $this->hasMany(Friend::class);
}
public function additionalfriends() {
return $this->hasMany(Friend::class, 'friend_id');
}
public function allfreinds() {
return $this->friends->merge($this->additionalfriends);
}
another solution you might try is
public function friends()
{
return Friend::where(function($query) {
$query->where('user_id',$this->id)
->orWhere('friend_id',$this->id);
});
}
HOW TO
In the Student Controller, how to sort the results by student name?
How to sort the results by student's guardian name?
TABLE STRUCTURE
taxonomies
id
entity_type - It contains the class name of the owning model.
entity_id - It contains the ID value of the student.
students
id
name
guardians
id
student_id
name
CONTROLLER
StudentController.php
public function getStudents()
{
return Taxonomy::with([
'entity',
'entity.guardian'
])
->where('entity_type', 'Student')
->get();
}
MODEL
Taxonomy.php
public function entity()
{
return $this->morphTo();
}
Student.php
public function taxonomies()
{
return $this->morphMany('App\Taxonomy', 'entity');
}
public function guardian()
{
return $this->hasOne('App\Guardian');
}
Guardian.php
public function student()
{
return $this->belongsTo('App\Student');
}
Use sortBy():
$taxonomies = Taxonomy::with('entity.guardian')
->where('entity_type', 'Student')
->get();
// Solution #1: Sort results by student name.
$sortedTaxonomies = $taxonomies->sortBy('entity.name');
return $sortedTaxonomies->values();
// Solution #2: Sort results by student's guardian name.
$sortedTaxonomies = $taxonomies->sortBy('entity.guardian.name');
return $sortedTaxonomies->values();
I have the following table structure:
products
id
product_formats
id
product_id
product_prices
id
product_format_id
market_id
markets
id
A product can have multiple formats, with each having their own price which belongs in a different market. How can I retrieve the list of Markets from the Product model?
I used to have a single pivot table, however now I have two pivot.
class Product extends Model
{
public function markets()
{
return $this->belongsToMany(Market::class);
}
}
Update
To get the result I want, I did the following:
public function markets()
{
return Market::whereIn('id', $this->prices()->distinct()->pluck('market_id')->toArray());
}
However, I'm wondering if there's a way to accomplish this via a relationship.
You need to build relationships in models.
ProductModel:
public function productFormats()
{
return $this->belongTo(ProductFormatsModel::class);
}
ProductFormatsModel:
public function productPrices()
{
return $this->belongTo(ProductPricesModel::class);
}
ProductPricesModel:
public function markets()
{
return $this->hasOne(MarketsModel::class);
}
in Controller:
foreach($product->productFormats as $productFormat)
{
foreach($productFormat->productPrices as $productPrice)
{
var_dump($productPrice->markets);
}
}
For unique markets
in ProductModel:
public function productPrices()
{
return $this->hasManyThrough(
'App\ProductPricesModel',
'App\ProductFormatsModel',
'product_id',
'product_format_id'
'id',
'id'
);
}
in Controller
foreach($product->productPrices as $productPrice)
{
var_dump($productPrice->markets)
}