How to relate additional tables to Auth::user - laravel

On documentation of Laravel, to retrieve the authenticated user:
$user = Auth::user();
This is my table schema (example)
tblUser
id // 1
userid // admin
password // 12345
tblUserInfo
id // 1
userid // admin
first_name // Roi
Is it possible to relate the tblUserInfo for the authenticated user? like for example
Auth::user()->with('userinfo')->first_name;
or is there a way around to get the first_name from authenticated user before I hit the view?

You should be able to just do
$firstname = Auth::user()->userinfo->first_name;
This assumes you have your relationship defined properly. Something along the lines of
class User extends Authenticatable
{
// ...
public function userinfo()
{
return $this->hasOne(UserInfo::class);
}
}
Given your non-standard table schema you may need to explicitly specify column names for foreign and local keys in hasOne() method - 2nd and 3rd parameters accordingly.
return $this->hasOne(UserInfo::class, 'id', 'id'); // or 'userid' depending on what you're using as a FK
^^^^^^^^^

Related

Laravel custom or extended belongsToMany

I have a table 'users' and a table 'groups'.
In the application, i am working on, the administrator can assign groups to users.
So there is a many-to-many relationship between these tables.
With the following code i defined this relation:
public function groups()
{
return $this->belongsToMany('\App\Group');
}
This way i can retrieve the groups this user is assigned to:
$users = User::with('groups')->get()
But above this, settings in the application provide the posibility to set a group for all the users.
Is it possible to define a relation so that i retrieve all groups that are related to the user plus the one that is assigned to all users according to the setting? Something like this:
public function groupsInclDefaultGroup()
{
$defaultGroupId = Setting::getSetting('defaultGroupId');
return $this->belongsToMany('\App\Group')->..??..($defaultGroupId);
}
.
$users = User::with('groupsInclDefaultGroup')->get();

Invalid argument supplied for foreach() in laravel when use Eloquent: Relationships

I wanna get the class name of a user via the user ID. When I input the ID of a user so I will wanna get the class name. I have three tables such as users table, classes table, and class_users table. The class_users table is born from two users table and classes table.
A users table has an id, name, email, password.
A classes table has an id, class_code, class_name.
A class_users table has an id, class_id, user_id
And this problem relates to Eloquent Relationships.
Thank you for help.
My Route:
Route::get('/find_classes/{id}','StudentController#find_classes');
My Controller function:
public function find_classes($id)
{
$users = User::find($id);
foreach($users->classes as $class)
{
echo $class->name . '<br';
dd($class);
}
}
My User Model:
public function classes()
{
return $this->belongsTo('App\Classes','class_users','user_id','class_id');
}
Looks like you might have the wrong relationship set up on your User model. You have a one to many set up, but your DB is setup to handle a many to many. I suggest you change your User model relationship:
public function classes()
{
return $this->belongsToMany('App\Classes');
}
Note, you may need to name the FK on that relation, as I see you have class_id on the table, but your actual class is named 'Classes'. Check through your relationships to ensure this is explicit on the FK where it doesn't follow Laravel convention exactly.
With this relationship, your foreach loop should work. It would be a good idea for efficiency, as mare96 noted, to eager load the classes on the $users collection when you query:
$users = User::with('classes')->find($id);

making model relationship to user, user can only access its own data

i have 2 main models and some child models with relationController to main models, now i need to add user id to both main and child models so user can only access its own data since users data stay on the same table.
i create belongsToMany relationship from user.php to the models and vice versa with pivot table but nothing happen
i have no idea how to do this since i need simplified database management in case i need to do migration..
can someone share your experience on this..
I can suggest you that you just add user_id [for Backend => backend_users_id ] to models which data you want access to owner only.
now in main model you can define belongsTo relation and in user you can define hasMany relation
main model relationship [if you want to restrict the user in backend side then you need to add backend user relation and same in backend user model]
class MainModel extends Model
{
// Adding relation to user model
public $belongsTo = [
'user' => 'RainLab\User\Models\User',
'backend_users' =>'Backend\Models\User' // for Backend
];
}
adding a relation to the user model [ you need to put this code in your plugin's boot method ]
// Extending User Model
\RainLab\User\Models\User::extend(function($model) {
$model->hasMany['mainmodel'] = ['HardikSatasiya\Plugin\Models\MainModel'];
});
// for Backend users
\Backend\Models\User::extend(function($model) {
$model->hasMany['mainmodel'] = ['HardikSatasiya\Plugin\Models\MainModel'];
});
Now access data [ Front-end side ]
// Returns the signed in user
$user = \Auth::getUser();
dd($user->mainmodel); // it will return collection of related mainmodels
// it will return related data and now its filter by owner
dd($user->mainmodel[0]->otherRelatin);
// for Backend users
// Returns the signed in user
$user = \BackendAuth::getUser();
dd($user->mainmodel); // it will return collection of related mainmodels
// it will return related data and now its filter by owner
dd($user->mainmodel[0]->otherRelatin);
Example filter data in listview based on logged in admin user [ OctoberCMS do not give such functionality out of the box, you can not hide a portion of data records you can hide entire menu or all records based on rights and roles but can not hide partial records ]
public function listExtendQuery($query)
{
$user = \BackendAuth::getUser();
$query->where('backend_users_id', $user->id);
}
to add backend_users_id you can use this code
class MainModel extends Model {
public function beforeSave()
{
$user = \BackendAuth::getUser();
$this->backend_users_id = $user->id;
}
}
if any doubt please comment.

laravel one-to-many get data without inner join

I am trying to get a feel around the laravel ORM and I have the following models.
I have a:
user table with- id, firstname, lastname
city table with - id, name
usercity table with - user_id, city_id
The usercity table tracks the cities the user has visited.
I added the following in city model:
public function usercity()
{
return $this->hasMany('App\UserCity');
}
And another function in user model
public function usercity()
{
return $this->hasMany('App\UserCity');
}
I also added a model for UserCity and added following function there.
public function city()
{
return $this->belongsTo('App\City');
}
public function user()
{
return $this->belongsTo('App\User');
}
Now, the goal is to retrieve all the cities a user has visited. I used the following function.
$usercities = User::where('id','=',1)->first()->usercity()->get();
This works in the sense that it retrieves the user_id and city_id.
What would i need to do to get all the fields in the city table also?
Current response:
[[{"user_id":"1","city_id":"1"},{"user_id":"1","city_id":"2"},{"user_id":"1","city_id":"3"},{"user_id":"1","city_id":"4"}]]
I might be able to use inner join but I wanted to see if there was another way to retrieve the data which safely populates the data for me.
What you really have is a many-to-many relationship between users and cities, with the usercity table being the pivot table. Laravel uses the BelongsToMany relationship to implement this. You'll need to make a few changes to get this to work.
In your city model:
public function users() {
return $this->belongsToMany('App\User', 'usercity');
}
In your user model:
public function cities() {
return $this->belongsToMany('App\City', 'usercity');
}
You can get rid of the UserCity model. There is usually no reason to need a model for the pivot table.
The usercity table may need to be updated to add an id field as the primary key. I've not tried it without one, however, so it may work as you have it. Also, if you wanted, you could rename the table to city_user to conform to Laravel conventions, and then you wouldn't need to specify the table name in the relationship definitions.
Once your relationships are setup correctly, you can access a user's cities via the cities relationship on the user, and you can access a city's users via the users relationship on the city. For example:
// all of the cities visited by user 1
$user = User::find(1);
$usercities = $user->cities;
// all of the users that have visited city 1
$city = City::find(1);
$cityusers = $city->users;
You can find more information about the relationships in the documentation here.

Laravel Eloquent - many to many with where for the pivot table

I'm trying to see what the best way to do the following.
I have 3 tables: users, items and item_user.
users and items table are pretty generic, id and a few columns to hold whatever data.
item_user table has the following structure
id
item_id
user_id
user_type [ 1 - Owner | 2 - Follower | 3 - Something else ]
Relationships:
Each Item has 1 Owner (user type)
Each Item has many followers
Each User can own many Items
Each User can follow many Items
I would like to have the Owner and Followers be the Users table so I don't need to replicate user data. I created a pivot table of item_id, user_id and user_type to hold these relationships.
So the question is how to I do this in Laravel Eloquent?
Item Model looks like:
public function user() {
return $this->belongsToMany('Users');
// This isn't actually correct since it belongs to only one User but not sure how to specify a where user_type = 1;
// return $this->belongsTo('User');
}
User Model looks like:
public function item() {
return $this->hasMany('Item');
}
Thanks!
You can just append the condition to your belongsToMany declaration:
public function user() {
return $this->belongsToMany('Users')->where('user_type', 1);
}
This will return only the User entries that have user_type = 1 in your pivot table. And just to make it more clear you could name the method owner() instead of user() to reflect the added condition.

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