I have three tables as below:
------------------------------
| users | projects | clients |
|--------|-----------|-------- |
| id | id | id |
| name | client_id | name |
| | user_id | |
| | name | |
------------------------------
So basically the relationship is like:
User hasMany Project
Project belongsTo Client
My question is:
How can I get all clients of a user using eloquent?
Seems like I cannot user hasManyThrough method as there are no project_id in clients table.
So what I wish to achieve is :
foreach($users as $user)
foreach($user->clients as $client) //HOW TO SET UP THIS RELATION?
foreach($client->projects($user)->get() as $project)
$users = User::with('projects')->get();
// organize cleints' project and add for each user
foreach ($users as $user) {
// order projects by client_id
$projects = Collect($user->projects->toArray());
$clients = $projects->groupBy('client_id');
// keep projects data in 'projects' index
$temp = array();
foreach($clients as $client => $projects){
$temp[$client] = array('projects' => $projects);
}
// add clinets data for each user
$user['clients'] = $temp;
}
// output
foreach($users as $user)
foreach($user->clients as $client)
foreach($client['projects'] as $project)
echo 'user-'.$project['user_id'].', clinet-'.$project['client_id'].', project-'.$project['name'].'<br>';
Above code generated this output for me:
Related
In my laravel project I have an inventory and a medicine table which the formats are as the following:
Inventory Table
id | medicine_id | expiry_date
-------|-----------------|-------------
1 | 1 | 13-11-2021
2 | 2 | 01-01-2020
3 | 2 | 23-05-2024
Medicine Table
id | name | category
-------|-----------------|-------------
1 | Hemophine | Syringe
2 | andrenalin | Tablet
3 | aspirin | Capsule
The models are set as below:
Inventory Model
class Inventory extends Model
{
public $incrementing = false;
public function medicine(){
return $this->belongsTo('App\Medicine', 'medicine_id');
}
}
Medicine Model
class Medicine extends Model
{
public $incrementing = false;
public function inventory(){
return $this->hasMany('App\Inventory', 'medicine_id');
}
}
For retrieving all the inventories with a specific category such as Syringe, I tried eager loading, but couldn't figure out the flaws. Here is what I did to get all the inventories with a Syringe category, but it didn't work.
public function index()
{
$medicines = Inventory::where('medicine_id'->category, "Syringe")->get();
foreach($medicines as $medicine){
echo $medicine->medicine->name ." ".$medicine->expiry_date;
echo "<br>";
}
}
Now, Is there anyway to get all the inventory items based on their categories they are in? in this case in "Syringe" category?
Your syntax is a bit wrong, in order to load the medicine for each inventory you need to use with and the where function is where('column', value)
So change it to this:
$medicines = Inventory::with([
'medicine' => function($query) {
$query->where('category', "Syringe");
}
])->get();
or even better the other way around:
$medicines = Medicine::with('inventory')->where('category', 'Syringe')->get();
I have a problem, I want to notify specific users, like a group of users or admins for example. But I don't know how I can only notify admin or users in my code with Laravel.
Here is my AdsController.php in which I notify only admin:
$ads = new Ad;
$current_user=Auth::user();
$ads->object = $request->input('object');
$ads->description = $request->input('description');
$ads->save();
$users = User::where('id', '<>', $current_user->id)->where('admin', 1)->get();
foreach ($users as $user) {
$user->notify(new NewAd($current_user, $ads));
}
please someone help me
you can add 1 table calls "role", and on table users add 1 field calls role_id. and then you can make condition in your controller,
for example :
Role table
id | name
1 | Admin
2 | User
User table
id | name | role_id
1 | Jon | 1
2 | Doe |2
Data table
id | name |user_id
1 |Data1 | 1
2 |Data2 | 2
Controller
public function index() {
if(Auth::user()->role_id == 1 ){
$datas = Data::all();
return view('projects.index',['datas' => $datas]);
} else {
$datas = DB::table('datas')->where('user_id', Auth::user()->id )->get();
return view('projects.index',['datas' => $datas]);
}
Hope can help you
I am trying to access data from a database query which I think will need a join. I have users that can be apart of many groups. I am using a belongsToMany
relationship. My Models are like so
class User extends Model
{
protected $table = 'users';
protected $guarded = [];
public function group()
{
return $this->belongsToMany('App\Group', 'users_user_groups')->withPivot('user_id', 'group_id');
}
}
class Group extends Model
{
protected $table = 'user_groups';
protected $guarded = [];
use SoftDeletes;
public function user()
{
return $this->belongsToMany('App\User', 'users_user_groups')->withPivot('user_id', 'group_id');
}
}
When I run everything I need too, I might get data like the following.
users
+----+---------------+
| id | name |
+----+---------------+
| 1 | John Doe |
+----+---------------+
user_groups
+----+---------------+-----------------+
| id | name | description |
+----+---------------+-----------------+
| 1 | Group AA | Something |
+----+---------------+-----------------+
| 2 | Group BB | Something |
+----+---------------+-----------------+
users_user_groups
+----+---------------+-----------------+
| id | user_id | group_id |
+----+---------------+-----------------+
| 1 | 1 | 1 |
+----+---------------+-----------------+
| 2 | 1 | 2 |
+----+---------------+-----------------+
So I know user with the id 1 belongs to the user_groups with ids of 1 and 2. What I am trying to do is grab all the users within my database who
belong to a user_group with the name admin. So I am trying something like this
DB::table('users')->select('userName')
->join('user_groups', 'users_user_groups')
->where('name', '=', 'admin')->get();
This I know is all wrong, how can I get all users within a group when using belongsToMany and a pivot table?
Thanks
Eloquent uses relations, not the query builder.
You can achieve what you're aiming for by doing something like this:
$group = Group::where('name', 'admin')->first();
$users = $group->users; // Where users is the name of your relationship (At the moment you have user)
Under the hood that will do two SQL statements and map them together in eloquent objects, rather than a join. The statements will look something like this:
select * from user_groups where name = ? and deleted_at is not null limit 1
select * from users where id in (?, ?)
When you have an instance Group you execute the relationship by calling it as if it was a property. So after that $users will contain a collection of User instances, so you can just loop through them:
foreach ($users as $user) {
// Do something with $user
}
I have a system where a user can input data into various forms and generate a custom document. When I set everything up, because each form has unique data, I create a Model/Controller for each type of document e.g. BriefDocument, InvoiceDocument etc.
I soon discovered that this became very messy, way too many Models and Controllers. It also took quite a long time to create a new document type. As such, I have rearranged my database.
I now have a Document model and a DocumentData model. A Document can have many Document Data. I envision something like this
Document
+----+---------------+-----------------+
| id | name | description |
+----+---------------+-----------------+
| 1 | BriefDocument | Something |
+----+---------------+-----------------+
DocumentData
+----+--------------+-----------------+--------------+
| id | key | value | documentId |
+----+--------------+-----------------+--------------+
| 1 | whatData | inputted data | 1 |
+----+--------------+-----------------+--------------+
| 2 | whoData | inputted data | 1 |
+----+--------------+-----------------+--------------+
| 3 | whyData | inputted data | 1 |
+----+--------------+-----------------+--------------+
| 4 | howData | inputted data | 1 |
+----+--------------+-----------------+--------------+
Doing this should allow me to create any type of Document using just these two models. My first problem is this, I have set up the routes as follows
Route::model('projects.document', 'Document');
Route::resource('projects.document', 'DocumentController', ['except' => ['index', 'show']]);
On a page I have a dropdown where the user can select the type of document they create. The dropdown has things like this
<li>{!! link_to_route('projects.document.create', 'Brief Document', array($project->id, 'Brief Document')) !!}</li>
So this will call the create function within my DocumentController
public function create(Project $project, $name)
{
$briefDocument = Document::where('projectId', '=', $project->id)
->where('name', '=', $name)
->first();
}
What I am trying to do in this function is first determine whether the same Document has already been created for this Project, because a Project can only have many documents, but no repeat documents.
If I do this however, I get
Missing argument 2 for App\Http\Controllers\DocumentController::create()
But am I not passing it arguement 2 within the link_to_route? From what I can see, this is passing my Project instance, as well as the string Briefing Document.
Why would I be getting this error?
Thanks
UPDATE
If I explicitly set the route it works e.g.
Route::model('projects.document', 'Document');
Route::get('projects/{projects}/document/{name}', array('as' => 'projects.document.create', 'uses' => 'DocumentController#create'));
You're getting this error, because you do not pass $name variable to the create() action.
Maybe the problem is in create() itself. This method is a part of RESTful controller and looks like it was designed to accept only Request object, so try this:
<li>{!! link_to_route('projects.document.create', 'Brief Document', ['project_id' => $project->id, 'name' => Brief Document')) !!}</li>
And create() action:
public function create(Request $request)
{
$id = $request->get('project_id');
$name = $request->get('name');
$briefDocument = Document::where('projectId', '=', $project->id)
->where('name', '=', $name)
->first();
}
Here are my tables having a many-to-many relationship and group_user as the intermediate table.
| users | groups | group_user |
-------------------------------------------
| id | id | group_id |
| name | name | user_id |
| created_at| creator_id | created_at |
| updated_at| created_at | updated_at |
| | updated_at | |
groups.creator is the user id referenced from users table.
When I try to query the group table, it returns something like this.
[{"id":1,"name":"Akatsuki","creator":1,"created_at":"2015-10-13 12:22:20","updated_at":"2015-10-13 12:22:20"}]
What I want is when I query the groups table, it also returns the user data of the creator like hasOne relationships do.
In User Model
public function groups()
{
return $this->belongsToMany('App\Group')->withTimestamps();
}
In Group Model
public function users()
{
return $this->belongsToMany('App\User')->withTimestamps();
}
After I query the groups, I just overwrite the group_creator column.
foreach($available as $data) {
$data['group_creator'] = User::find($data['group_creator']);
}
Now it returns
[{"id":1,"group_name":"Akatsuki","creator":{"id":1,"firstname":"John","lastname":"Doe","created_at":"2015-10-13 12:19:35","updated_at":"2015-10-13 14:14:41"},"created_at":"2015-10-13 12:22:20","updated_at":"2015-10-13 12:22:20"}]
Along with the user details.