I'm new to Laravel and trying to soft-delete both rows from two tables.
Vehicles table,
id
license
brand
is_taken
Taken_bies table,
id
name
phone
vehicle_id
In vehicles table, if is_taken is true, I grab the id of vehicle and fill it to vehicle_id from taken_bies table with other information.
In my TakenBy model, I've implemented relationship as follow:
public function vehicle() {
return $this->belongsTo('App\Vehicle');
}
My Requiremnet:
If I soft-delete the vehicle, I want to delete the related taken_bies information from taken_bies table. How can I achieve that? I'm using Laravel 5.8. Thank you.
you can delete it like below
$vehicle = Vehicle::find(1);
$vehicle->taken_bies()->delete();
$vehicle->delete();
Related
I have a question about Laravel Eloquent Relations.
I have the following table situation:
Table guests:
id
name
...
Table landing_pages:
id
name
...
A guest can have several landing pages. And a landing page will have multiple guests.
So I thought, I can use a many-to-many relationship there and I created a new table
Table guests_landing_pages:
id
guest_id
landing_page_id
...
I would be able to use this the following way:
In guest Model I can do this, to create the many-to-many relationship:
public function landing_pages()
{
return $this->belongsToMany(\App\Models\LandingPage\LandingPage::class, 'guests_landing_pages','landing_page_id','guest_id');
}
... and the other way round in landing_page model.
But actually the table guests_landing_pages contains more data than just the guest_id and landing_page_id relation.
There are several other fields in it:
Table guests_landing_pages:
id
guest_id
landing_page_id
identifier_token
max_persons
answer
...
My question is now, how can I realize this best. If I would use the many-to-many relation as described above, I will not be able to access the fields in the intermediate table, won't I?
Or will the best solution to this to create a GuestLandingPages model with all the fields and create hasMany relations to/in both?
Laravel Eloquent has features for retrieving intermediate columns.
public function landing_pages()
{
return $this->belongsToMany(\App\Models\LandingPage\LandingPage::class, 'guests_landing_pages','landing_page_id','guest_id')
->withPivot('max_persons', 'answers');
}
I have a table named project. In this table I have a column named student_id. Model for this table is Project. And I have another table named user. And model name is User. Now I am retrieving all project table details in a page including student_id. Now I want to show user name instead of student_id. I mean I want to show this student name instead of student id. For example if student_id is 10 then I want to print name for that user from user table whose id is 10.
Any one please help.I have read document from laravel. But i don't know why I am not getting the eloquent concept properly.
Define belongsTo() relationship in Project model class:
public function student()
{
return $this->belongsTo(User::class, 'student_id');
}
And use it:
$project->student->name;
I'm new to Stack Overflow and Laravel.
I try to develop a variable profilesystem in Laravel and I got 3 tables ('User', 'User_Fields', 'Fields').
The structure of the Fields table is following:
The structure of the user_fields table is following:
The User table is the standard table which came with Laravel 5
Now I want to get all fields from user_fields depending on which user is selected or logged in. If the user_field doesn't exists, the model should return null or create a new record for the user_field.
I tried a lot of "solutions" which came with eloquent like (hasManyThrough, belongsToMany) but I don't get the result I wanted.
Is there any solution with relationship methods?
Thanks for your help, and sorry for my bad english :/
You should be using the belongsToMany()->withPivot() to retrieve the intermediate table columns. Your user_fields is your pivot table so on your user model you should have:
class User extends Model
{
public function fields()
{
return $this->belongsToMany(Field::class, 'user_fields')->withPivot('value');
}
}
Then you can access your values for a user by:
$user = User::find($id);
foreach($user->fields as $field) {
$field->pivot->value;
}
I'd like your input on this.
I have a Customer_table with a field name. I have another table called Reservation_table with a Customer_name field.
How can I relate them in such a way that I'd see all the bookings by the specific customer?
In Reservation_table you should have a field(foreign key) userid in order ta have a user for each reservation.
You can using primary key - foreign key relationship to relate/join those two tables. Also, instead of having a 'Customer_name' field as your FK referring to 'name' field in 'Customer_table' table, it is better to have an id (unique) generated for each customer; This way you can have an efficient way of uniquely identifying and relating customer across tables; can save space on Database side as well. Hope this helps!
If you want to use eloquent you must first define a relationship.
One reservation belongs to a user. Here is how to define the relationships:
Inside the Reservation model:
public function user()
{
return $this->belongsTo('App/User'); //User model
}
To define the inverse you do the following:
Inside User model:
public function reservations()
{
return $this->hasMany('App/Reservation'); // Reservation Model
}
Now you can do the following in your controller:
$reservations = Auth::user()->reservations;
Now you have all reservations by the currently logged in user.
I am not sure if I got the question right so ask away.
I've been getting along slowly but surely with Laravel / Eloquent, but am now stumped:
entries Table:
id
user_id
group_id
content
users Table
id
faculty_id
name
group Table:
id
name
faculty Table
id
name
So entries are related to users and groups, and users are related to faculties - I've set up the basic relationships without a problem, and this enables me to find all entries by users from a certain faculty:
Faculty Model:
public function entries()
{
return $this->hasManyThrough('Entry','User');
}
Controller:
Faculty::find(Faculty-ID-here)->entries;
However, I now need to find entries by users that are from a certain faculty AND from a certain group, and I don't know how to write this combination this in Eloquent.
Hope that makes sense! Any suggestions?
Something like:
Entries::whereHas('user', function($q) {
$q->where('faculty_id', $facultyID);
})
->where('group_id', $groupID)
->get();
Assuming you have set up your 'user' relationship.