Pluck the values from WITH Eloquent in Laravel - laravel

I have a dropdown box that shows only the user with collector and borrower's role. Here's my code
public function create()
{
$users = User::whereHas('roles', function ($q) {
$q->where('roles.name', '=', 'collector')->orWhere('roles.name', '=', 'borrower');
})
->with('profile')
->get()
->pluck('name','id');
return view('dashboard.documents.create', compact('users'));
}
this code is fine but what I what to pluck is the column first_name, last_name and user_id from 'profile'.
How can I achieve that?
Thank you so much in advance!

You do one of these
$users = User::whereHas('roles', function ($q) {
$q->where('roles.name', '=', 'collector')->orWhere('roles.name', '=', 'borrower');})
->with('profile')
->select('name','id')
->get();
Or
$users = User::whereHas('roles', function ($q) {
$q->where('roles.name', '=', 'collector')->orWhere('roles.name', '=', 'borrower');})
->with('profile')
->get(['name','id']);
Both ways will return a collection with related models each model record will has the selected columns, if you want to convert it to an array you can add ->toArray() after the two ways and it will convert the collection to array.

Related

Search result with multiple tables relation in Laravel6

I'm trying to make search function with relation.
I could display all result using relation And an another code, simple one table search and get result works fine.
but I can't combine those two.
Could you teach me how to combine multiple tables into search function please?
public function order(Request $request)
{
$data = $request->all();
$products = Product::All();
$products = Product::with('categori')
->join('creators', 'creators.id', '=', 'products.creator_id')
->join('categoris', 'categoris.id', '=', 'products.categori_id')
->join('branches', 'branches.id', '=', 'products.br_id')
->join('users', 'users.id', '=', 'products.user_id')
->join('colors', 'colors.id', '=', 'products.color_id')
->get();
$products = Product::when($data['categori_id'], function ($query, $categori_id) {
return $query->where('categori_id', $categori_id);
})->
when($data['color_id'], function ($query, $color_id) {
return $query->where('color_id', $color_id);
})->get();
//return view('result_fb', compact('images'));
$data = array(
'title' => 'index',
'no' => 1,
'products' => $products,
);
return view('product.result', $data);
}
I am not sure if you need 'categori' relation to be loaded or not as there are few $products without it. For general, you can combine all your $products queries to one as follows:
$products = Product::join('creators', 'creators.id', '=', 'products.creator_id')
->join('categoris', 'categoris.id', '=', 'products.categori_id')
->join('branches', 'branches.id', '=', 'products.br_id')
->join('users', 'users.id', '=', 'products.user_id')
->join('colors', 'colors.id', '=', 'products.color_id')
->when($data['categori_id'], function ($query, $categori_id) use ($data) {
return $query->where('categori_id', $data['categori_id']);
})
->when($data['color_id'], function ($query) use ($data) {
return $query->where('color_id', $data['color_id']);
})->get();
If you want to use eager loading with eloquent rather then join, you can use like
$products = Product::with(['creator','categori','branch','user','color'])
->when($data['categori_id'], function ($query, $categori_id) use ($data) {
return $query->where('categori_id', $data['categori_id']);
})
->when($data['color_id'], function ($query) use ($data) {
return $query->where('color_id', $data['color_id']);
})->get();
But for that you Product model should have relations with same name as follows for categori relation:
class Product extends Model
{
public function categori()
{
return $this->belongsTo(Categori::class,'categori_id','id);
}
}
Same way you have to define for all relation used for product.
Try this:
$products = Product::with('categori')
->join('creators', 'creators.id', '=', 'products.creator_id')
->join('categoris', 'categoris.id', '=', 'products.categori_id')
->join('branches', 'branches.id', '=', 'products.br_id')
->join('users', 'users.id', '=', 'products.user_id')
->join('colors', 'colors.id', '=', 'products.color_id')
->when($data['categori_id'], function ($query, $categori_id) {
return $query->where('categori_id', $categori_id);
})
->when($data['color_id'], function ($query, $color_id) {
return $query->where('color_id', $color_id);
})
->get();

Laravel Eloquent making select on whereHas()

How can I select on whereHas() some columns in relation.
My current query looks like as it follows
Location::select(['title'])
->withCount(['job' => function($q) {
return $q->where('language_id', 1)->whereNull('deleted_at');
}])->whereHas('country', function ($q) {
return $q->where('id', '=', 80);
})->get();
and I tried
Location::select(['title', 'id as value'])->withCount(['job' => function($q) {
return $q->where('language_id', 1)->whereNull('deleted_at');
}])->whereHas('country', function ($q) {
return $q->select('title', 'iso3')->where('id', '=', 80);
})->get();
but nothing is getting returned on country relation. How do I refactor this query to get it work?
whereHas() doesn't eager load the relation, only filters results based on it. To eager load, use with().
Location::with('country:id,title,iso3')
->select(['title', 'id as value', 'country_id'])
->withCount(['job' => function($q) {
$q->where('language_id', 1)->whereNull('deleted_at');
}])
->whereHas('country', function ($q) {
$q->where('id', '=', 80);
})->get();

How to implement relationship in where condition Laravel's eloquent?

I have two tables:
Students
Results
The two tables have one to may relationship.
Student model:
public function results()
{
return $this->hasMany('App\Result');
}
Result model:
public function student()
{
return $this->belongsTo('App\Student');
}
In the students table I have a field called average_score.
How can I execute the following query, this is not working it says "Undefined property: Illuminate\Database\Query\Builder::$student":
$data = Result::with('student')->where('score', '>=', function($q){
$average_score = $q->student->average_score;
return $average_score;
})->get();
In order to get the results that are only higher or equal to than the "average_score".
If score and average_score are columns of the same table (student), try this;
$data = Result::with(['student' => function ($query) {
$query->whereColumn('score', '>=', 'average_score');
}])->get();
If score and average_score are columns of the different tables, try this;
$data = Result::with('student')->whereHas('student', function($q) {
$q->whereColumn('students.average_score', '<=', 'results.score');
})->get();
You can use whereHas to find those results:
$data = Result::with('student')->whereHas('student', function($q) {
$q->whereColumn('average_score', '<=', 'Results.score');
})->get();
get value from column Results.average_score then compare to student.score:
Result::with([
'student' => function($query) {
$query->where("score",">=", "Results.average_score"););
}
])

Excluding pivot rows in Eloquent ORM query

(laravel 4.2)
There are four tables involved; users, posts, flags, and post_flags.
I want to retrieve every post a certain user has, and retrieve the flags set for the post, but only the flags that are set by the user in question.
For example: A post can have flags: 1,2,2,3 where flag 2 is set twice. Once by User A, once by User B. I don't want to see the flags that User B has set.
The Eloquent query in my controller:
$posts = Post::whereHas('companies', function($q) use($company_id) {
$q->where('id', '=', $company_id);
})->with('flags')->get();
The Relation in my Post model:
public function flags() {
return $this->belongsToMany('PostFlag', 'post_postflags', 'post_id', 'flag_id')
->withTimestamps()->withPivot('owner');
}
How would I achieve this using Eloquent ORM?
UPDATE
My final query, thanks to andrewtweber:
Final query
$posts = Post::whereHas('users', function($q) use($id) {
$q->where('id', '=', $id);
})->get()->load([
'flags' => function($query) use($id) {
$query->where('owner', '=', $id)->orWhere('owner', '=', 'SYSTEM');
}
]);
Use wherePivot
http://laravel.com/api/4.2/Illuminate/Database/Eloquent/Relations/MorphToMany.html
$flags = $post->flags()
->wherePivot('user_id', '=', $user_id)
->get();
Or with eager loading
$posts->load([
'flags' => function ($query) use($user_id) {
$query->wherePivot('user_id', '=', $user_id);
}
]);

Laravel 4 Eager Loading constraints

I want to get all Items (topics) WITH their comments, if comments user_id = $id. I try something like this, but it isn't working. So if Item hasn't got any comment with user_id = $id, then I don't need this Item.
In DiscussionsItem model I have methode:
public function discussionsComments() {
return $this->hasMany('DiscussionsComment', 'discussionsitem_id');
}
My query in controller is like this:
$items = DiscussionsItem::whereBrandId($brand_id)
->whereBrandCountryId($country_id)
->with(['discussionsComments' => function($query) use ($id) {
$query->where('user_id', '=', $id);
}])
->whereHas('discussionsComments', function($query) use ($id) {
$query->where('user_id', '=', $id);
})
->with(['views' => function($query) use ($id) {
$query->where('user_id', $id)->count();
}])
->orderBy('created_at', 'DESC')->get();
My problem is that I get items with comments, where comments user_id != $id.
P.S. I need to take 5 comments, but I cant imagine how to do that, because ->take(5) in my eager load is not working.
You can do a custom scope, or just limit the amount returned by your relation:
public function discussionsComments() {
return $this->hasMany('DiscussionsComment', 'discussionsitem_id')
->latest()
->take(5);
}

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