My query:
$data = DB::table('countries')
->leftJoin('matches', function ($join) {
$join->on('matches.hometeam', '=', 'countries.id')
->orOn('matches.awayteam', '=' ,'countries.id');
})
->where('countries.id', $id)->get();
return dd($data);
How can I get same results using relationship?
In your Model (You need a matches model aswell):
<?php
class Country extends Model {
public function matches() {
return $this->hasMany(App\Matches::class, ['hometeam', 'awayteam'], 'id');
}
}
In your controller:
$countrys = Countrys::where('id', $id)->get()
foreach($countrys as $country) {
var_dump($country->matches);
}
die();
Related
I have a model that I want to sort based on a relationship property.
First model "DeviceType":
public function make()
{
return $this->hasMany(DeviceMake::class);
}
Second model: "DeviceMake":
public function type()
{
return $this->hasOne(DeviceType::class, 'id', 'device_type_id');
}
public function model()
{
return $this->hasMany(DeviceModel::class);
}
Controller:
$type = DeviceType::with(['make'])->where('id', '=', $device_type_id)->first();
Table name is device_makes and I want to sort it by name. How can I do this?
And what about?
$type = DeviceType::with(['make' => function ($query) {
$query->orderBy('name', 'asc');
}])->where('id', '=', $device_type_id)->first();
Please note that first() will only return the first model that matches your query whereas get() will return all of them.
Maybe you could try this instead in your Model:
public function make() {
return $this->hasMany(DeviceMake::class)->orderBy('name', 'asc');
}
I'm trying to load a relationship with eager loading. But, would like to pass an attribute to the relationship function.
(Laravel 6.x)
Model - taxChildren() requires an ID
public function taxChildren($moduleId)
{
return $this->hasMany($this, 'parent')->where('module', '=', $moduleId')->orderBy('created_at', 'asc');
}
Controller
$departments = tax::where([
['module', '=', $this->departmentsModuleId],
])
->whereNull('parent')
->with([
'taxChildren' => ['moduleId', '2']
])
->get();
Now , i know that i can pass a query to my relationship like so:
$departments = tax::where([
['module', '=', $this->departmentsModuleId],
])
->whereNull('parent')
->with([
'taxChildren' => function($query){
$query->where('module', '=', $this->departmentsModuleId);
},
])
->get();
but i will be using this often with multiple relations that are similar. Anyone have an idea how to achieve this? Thanks!
You can't pass argument direcly to the relationship function but this can be done with model properties
Mymodel.php
class MyModel extends Model {
protected $moduleId = null;
public function taxChildren(){
return $this->hasMany($this, 'parent')->where('module', '=', $this->moduleId)->orderBy('created_at', 'asc');
}
}
MyController.php
use App\MyModel;
...
class MyController extends Controller {
public function controllerMethod(){
$query = new MyModel;
$query->moduleId = 1;
$departments = $query::where([
['module', '=', $this->departmentsModuleId],
])
->whereNull('parent')
->with(['taxChildren'])
->get();
}
}
Also you can use laravel query scopes to set modelId property . I think that is much cleaner code
Mymodel.php
class MyModel extends Model {
protected $moduleId = null;
public function scopeMudule($q, $module_id){
$this->moduleId = $module_id;
return $q;
}
public function taxChildren(){
return $this->hasMany($this, 'parent')->where('module', '=', $this->moduleId)->orderBy('created_at', 'asc');
}
}
MyController.php
use App\MyModel;
...
class MyController extends Controller {
public function controllerMethod(){
$departments = $query::module(1)->where([
['module', '=', $this->departmentsModuleId],
])
->whereNull('parent')
->with(['taxChildren'])
->get();
}
}
i'm getting this error while trying to add a subquery select to a query builder. this error occurs when i try to get the product count for a given category.
addSubSelect Macro
Builder::macro('addSubSelect', function ($column, $query) {
if (is_null($this->columns)) {
$this->select($this->from.'.*');
}
return $this->selectSub($query, $column);
});
Category.php
public function scopeWithProductCount($query){
$query->addSubSelect('products_count', function($query) {
$query->whereHas('product', function ($query) {
$query->select('id')
->from('products')
->whereColumn('category_id', 'category.id')
->count();
});
});
}
Category Controller
public function index()
{
$categories = $this->user()->store->categories()
->withProductsSum()
->get();
return response()->json($categories);
}
i changed the scopedWithProductCount method to this to try and get more debugging options but i end up with the same error
public function scopeWithProductCount($query){
$query->addSubSelect('', function($query) {
});
}
The columns property is in the Illuminate\Database\Query\Builder Class and not Illuminate\Database\Eloquent\Builder. Your $this will refer to the Eloquent\Builder reference and not the Query\Builder.
So try changing your macro like this:
addSubSelect Macro
Builder::macro('addSubSelect', function ($column, $query) {
if (is_null($this->getQuery()->columns)) {
$this->select($this->from.'.*');
}
return $this->selectSub($query, $column);
});
Write join and the name of the table before the field:
public function scopeWithProductCount($query){
$query->addSubSelect('products_count', function($query) {
$query->whereHas('product', function ($query) {
$query->select('products.id')
->from('products')
->join('categories', 'categories.id', '=', 'products.category_id')
->count();
});
});
}
When I am adding a new post in my app there is a 7 tables to affect when I add single post. To fetch all posts with all post data my simple query look like:
$userPost = Post::with(['product','postattribute.attribute.category','user.userDetails'])
->offset($offset)
->limit($limit)
->whereStatus("Active")
->whereIn('product_id', $userApprovalProductIDs)
->orderBy('id','desc')
->get();
So it is retrun all data which I want. Now I want to implement search query within all tables, currently I am able to search only posts table.
If I am doing search on category table with categoryTitle I am trying to code like
where('category.title','=', $serachTitle)
But it is not working in my case.
POST model relationship :
public function user() {
return $this->belongsTo(User::class);
}
public function product() {
return $this->belongsTo(Product::class);
}
public function postattribute() {
return $this->hasMany(PostAttribute::class);
}
POSTATTRIBUTES model relationship :
public function post() {
return $this->belongsTo(Post::class);
}
public function attribute() {
return $this->belongsTo(Attribute::class);
}
ATTRIBUTES model relationship :
public function category() {
return $this->belongsTo(Category::class);
}
public function attributes() {
return $this->belongsTo(Attribute::class);
}
How can I do this ?
To apply filter on your nested relations you could use whereHas
$userPost = Post::with(['product','postattribute.attribute.category','user.userDetails'])
->offset($offset)
->limit($limit)
->whereStatus("Active")
->whereIn('product_id', $userApprovalProductIDs)
->whereHas('postattribute.attribute.category', function ($query) use($serachTitle) {
$query->where('title', '=', $searchTitle);
})
->orderBy('id','desc')
->get();
Querying Relationship Existence
From comments what i understood is you want to know how to search within each relation for a post , I already added an example to search with category title
->whereHas('postattribute.attribute', function ($query) use($var) {
$query->where('some_field_of_attribute_table', '=', $var);
})
->whereHas('postattribute', function ($query) use($var) {
$query->where('some_field_of_postattribute_table', '=', $var);
})
How can I write this without a join for a scope in a Laravel model as the 'id' field becomes ambiguous
/**
* Return events that social category name
*/
public function scopeWithSocialEvents($query)
{
return $query->join('categories', 'events.event_type_id', '=', 'categories.id')
->where('categories.name', 'social');
}
Use this:
public function eventType()
{
return $this->belongsTo(Category::class);
}
public function scopeWithSocialEvents($query)
{
return $query->whereHas('eventType', function($query) {
$query->where('name', 'social');
});
}