I need to get all items where project_group.admin_id' equal to current user id.
This find method will return just one item:
$projects = Group::find(1) -> projects()->where('project_group.admin_id', '=',Auth::user()->id)->get();
Is there any why to solve this?
Correct answer:
public function userProjects(){
$adminIdCondition = function($q){
$q->where('admin_id', Auth::user()->admin_id);
};
$projects = Project::with(['groups' => $adminIdCondition])
->whereHas('groups', $adminIdCondition)
->get();
return $projects;
}
Related
Help me please.
I'm trying to write a function where I get all the categories of my forum with the 3 most recently updated Topics in the given categories.
But according to the result, take(3) filters by id (where the id is not higher than 3), and I need to get the last 3 records.
public function index()
{
$forums = Category::with(['posts' => function ($q){
return $q->take(3)->get();
}])->get();
dd($forums);
}
you should order your complete query by update_at descending, only after you can take the first 3.
$q->orderBy('update_at', 'desc')->take(3)->get();
Your Categories table seems to be a different table from posts, so when a post is created or updated you should also set update_at of its category to now.
As far as I know you can not use take() or limit() inside with();
EDIT: solution that was selected by mr.Sardov is to use package staudenmeir/eloquent-eager-limit.
Link is provided below this answer.
So for you need to do is by limit it from model relationship.
For example:
class Category extends Model {
public function posts()
{
return $this->hasMany('App\Models\Post');
}
public function limitPosts()
{
return $this->hasMany('App\Models\Post')
->limit(3);
}
public function limitLatestPosts()
{
return $this->hasMany('App\Models\Post')
->orderBy('created_at', 'desc'). // or use ->latest()
->limit(3);
}
}
And that use it like this:
Category::query()
->with(['limitPosts' => function($query) {
$query->orderBy('created_at', 'desc'); // the last records
}])
->where('id', '<=', 3) // id not higher than 3
->get();
Or
Category::query()
->with('limitLatestPosts')
->where('id', '<=', 3) // id not higher than 3
->get();
Hope this can help you out.
I have tables Polfzms <- Genes
Polfzm model have next relation
public function gene()
{
return $this->belongsTo('App\Gene');
}
I need get all data from Polfzms table with data from Genes table and order it by name from pivot table (Genes). I try next
$data = Polfzm::with([
'gene' => function ($query) {
$query->orderBy('name', 'asc');
},
])->get();
but it not order data by name. How can I do it?
You could try to set this in the relationship definition:
Polfzm.php
public function gene()
{
return $this->belongsTo('App\Gene')->orderBy('name', 'asc');
}
Then in your controller:
$data = Polfzm::with('gene')->get();
If I understand correctly, you could use a collection sortBy helper for this one.
An example could be:
$data = Polfzm::with('gene')
->get()
->sortBy(function ($polfzm) {
return $polfzm->gene->name;
});
I have three tables - users, products and orders
There is a relation between users and orders (users has many orders).
orders table contains product_id and user_id column.
Now I want to access the product details of orders for a user.
What I am trying:
public function myOrders(){
$orders = Auth::user()->orders->pluck('product_id');
$products = Product::find($orders);
return view('shop.myorders', compact('products'));
}
But this is not working. Can anyone help me? What other way can be better to achieve this?
As mentioned, find() will always return 1 item, and expects a string/int for the parameter. You want to use where and get instead. With an array of ids, you can use whereIn.
public function myOrders(){
$orders = Auth::user()->orders->pluck('product_id');
$products = Product::whereIn('id', $orders)->get();
return view('shop.myorders', compact('products'));
}
I assume you have orders() relation defined in the Product model:
public function orders()
{
return $this->hasMany(Order::class)
}
Then you'll be able to load products from all user's orders:
$products = Product::whereHas('orders', function($q) {
$q->where('user_id', auth()->id())
})->get();
I have a query which looks like this:
$items = Item::live()
->with('location')
->where('last_location_id', Input::get('last_location_id'))
->get();
The background of this is...
2 tables: Items & Cars.
The live scope is:
public function scopeLive($query)
{
return $query->whereHas('basic_car', function($q)
{
$q->whereNotNull('id')->where('sale_status', 'Live');
});
}
This basically checks the cars table for a matching id to that of the items 'car_id' field and will run some where clauses on the cars table.
I now however want to check another field on the cars table, but using the Input::get('last_location_id') from the original query.
$items = Item::live()
->with('location')
->where('last_location_id', Input::get('last_location_id'))
->orWhere('ROW ON THE CARS TABLE' = Input::get('last_location_id'))
->get();
This does't work, then I tried:
$items = Item::live()
->with('location')
->where('last_location_id', Input::get('last_location_id'))
->orWhere(function($query)
{
$query->where('cars.Location', Input::get('last_location_id'));
})
->get();
Which results in an unknown column 'cars.Location' error.
My next test was to create another scope:
public function scopeLiveTest($query)
{
return $query->whereHas('basic_car', function($q)
{
$q->whereNotNull('id')->where('sale_status', 'Live')->where('Location', 1); // hardcoded ID
});
}
And replacing the live() scope with that works but I dont get the affect of the orWhere in the query itself and I also cannot specify a ID from the Input.
How can I do this?
You can pass a parameter to scope like this:
$items = Item::liveAtLocation(Input::get('last_location_id'))
->orWhere(function( $query ) { // to get the OR working
$query->live()
->with('location')
->where('last_location_id', Input::get('last_location_id'));
})
->get();
And for the scope:
public function scopeLiveAtLocation($query, $location_id)
{
return $query->whereHas('basic_car', function($q) use ($location_id)
{
$q->whereNotNull('id')->where('sale_status', 'Live')->where('Location', $location_id);
});
}
I have a model called School and it has many Students .
Here is the code in my model:
public function students()
{
return $this->hasMany('Student');
}
I am getting all the students with this code in my controller:
$school = School::find($schoolId);
and in the view:
#foreach ($school->students as $student)
Now I want to order the Students by some field in the students table. How can I do that?
You have a few ways of achieving this:
// when eager loading
$school = School::with(['students' => function ($q) {
$q->orderBy('whateverField', 'asc/desc');
}])->find($schoolId);
// when lazy loading
$school = School::find($schoolId);
$school->load(['students' => function ($q) {
$q->orderBy('whateverField', 'asc/desc');
}]);
// or on the collection
$school = School::find($schoolId);
// asc
$school->students->sortBy('whateverProperty');
// desc
$school->students->sortByDesc('whateverProperty');
// or querying students directly
$students = Student::whereHas('school', function ($q) use ($schoolId) {
$q->where('id', $schoolId);
})->orderBy('whateverField')->get();
you can add orderBy to your relation, so the only thing you need to change is
public function students()
{
return $this->hasMany('Student');
}
to
public function students()
{
return $this->hasMany('Student')->orderBy('id', 'desc');
}
To answer the original question, the students dynamic property can also be accessed as a relationship method.
So you have this to fetch all students:
$students = $school->students;
Now as a relationship method, this is equivalent:
$students = $school->students()->get();
Given this, you can now add in some ordering:
$students = $school->students()->orderBy('students.last_name')->get();
Since eloquent will be performing a join, make sure to include the table name when referencing the column to order by.
You can also add this to your students method if you want to set a default order that $school->students will always return. Check out the documentation for hasMany() to see how this works.
For Many to one relation I found one answer on:
https://laracasts.com/discuss/channels/eloquent/order-by-on-relationship
$order = 'desc';
$users = User::join('roles', 'users.role_id', '=', 'roles.id')
->orderBy('roles.label', $order)
->select('users.*')
->paginate(10);
this can save day... of anyone
You can use this like this:
$students = $school->students()->orderBy('id', 'desc');
You can also use
$students = $school->students()->orderBy('id', 'desc')->paginate(10);