In the following code, The Users table has a related table phoneNumbers. When I retrieve a list of all users like this,
return Person::with('phoneNumbers')->get();
everything works fine. However, when I attempt to specify a list of columns to return from the Person table, the phone_number returns empty.
return Person::with('phoneNumbers')
->get(['fname','lname', 'email']);
If I add the number field or phone_number.number to the get array, then I get an error as an undefined column. What is the laravel way of handling this.
Try this:
return Person::select(['your_foreign_key', 'fname','lname', 'email'])
->with('phoneNumbers')get();
Related
I have created a query in function at the controller where I want to get data from a pivot table based on the value sent using jquery.how can i create a function to get the values of the id associated with the selected house id in the controller.i have tried this but i get an error
$rentalcategoryhouses=Rental_house::whereIn('rentalcat_id',$rentalcategorydetails['catids'])
->with('housetags')->where('tag_id',$data['rentaltag'])->get();
the housetags here is the belongstoMany function in the house model that associates the houses with the tags.
function housetags(){
return $this->belongsToMany(Rental_tags::class,'rentalhouse_tags','rental_id','tag_id');
}
i want to get all the houses associated with the specific tag_id using a query in the controller.
this answer here solved my bug solution
Maybe simple, but I can't figure it out...
When I create a record using Eloquent and a model that extends Model, and then get its id right after it just works:
$example = Example::create(['name'=> 'exie']);
dd($example->id);
// returns id (ex. 15) as expected from the created record...
When I create a record using a model that extends Pivot and try to get id, it only returns null.
$customPivotExample = CustomPivot::create(['name' => 'custie']);
dd($customPivotExample->id);
// returns null instead of id...
The records all have a PK so I expected to just get the ID back, but apparently there is something about using a custom pivot model and getting it's id after creation what I am overlooking..
(examples are really simple but the actual code only contains more key=>value pairs and nothing more)
anyone has any idea?
Own Answer
Putting this here because this is not written (somewhat) in the Laravel documentation.
They mention this about auto incrementing ID's:
https://laravel.com/docs/9.x/eloquent-relationships#custom-pivot-models-and-incrementing-ids
I had not done this (my bad), but doing this also enables getting the ID after creation of a pivot record as in my second example....
I have a table called rentals, within each row are columns state,city,zipcode which all house ids to another table with that info. There are about 3400 rentals. I am pulling each column to display the states,city and zipcode distinctly. I need to show how many rentals are in each one. I am doing this now via ajax, the person starts typing in what they want to see and it auto completes it with the count, but its slow because of the way im doing it.
$rentals_count = Rentals::where('published',1)->get();
foreach($states as $state) {
echo $state.”-“.$rentals_count->where(‘state’,$state->id)->count();
}
Above is roughly what im doing with pieces removed because they are not related to this question. Is there a better way to do this? It lags a bit so the auto complete seems broken to a new user.
Have you considered Eager loading your eloquent query? Eager loading is used to reduce query operations. When querying, you may specify which relationships should be eager loaded using the with method:
$rental_counts = Rentals::where('published',1)->with('your_relation')->get();
You can read more about that in Laravel Documentation
$rentals = Rentals::wherePublished(true)->withCount('state')->get();
When you loop through $rentals, the result will be in $rental->state_count
Setup a relation 'state' on rentals then call it like this
$rentals_count = Rentals::where('published',1)->with('state')->get()->groupBy('state');
$rentals_count->map(function($v, $k){
echo $v[0]->state->name .' - '. $v->count();
});
Meanwhile in Rentals Model
public function state(){
return $this->hasOne(State::class, 'state'); //state being your foreign key on rentals table. The primary key has to be id on your states table
}
i've been working around and then i tried to make a migration where i establish this:
$table->string('company')->default('None');
$table->string('job')->default('freelancer');
now, that happens is that when i fill out my form, and submit it, it throws me an error message that the fields cannot be NULL.
So i'm a bit confused because as i know, if the fields are NULL, they should be saved as the default part of the migration establishes it.
How can i make it work?
Thanks in advance for your help.
May be you are missing $fillable property in your model:
protected $fillable = ['company','job'];
Also make sure your migrations files are generating correctly. Go to the table and see if default values are set correctly.
Laravel mass assignment
It says if nothing passed to this column when you insert database will set default value as given. But if you try to insert NULL value to this column it will raise error.
If u want to allow NULL value on this column, you should add ->nullable(). Like that:
$table->string('company')->nullable()->default('None');
Let is try to explain more:
Pretend your "column1" is in your fillable array.
When you fill your model without column1. Laravel will generate query like
INSERT INTO table_name(column1) VALUES(NULL)
And if your column1 is not nullable, it will raise error.
if "column1" is not in $fillable array, and you fill your model without "column1", laravel generate query without "column1" like:
INSERT table(othercolumns ... ) VALUEs(....)
Column1 is not set, so MYSQL will set default value there.
I am using cakephp 3.4.9. When I am using a table with prefix n field its working properly after baking but if I use prefix in table fields its not working.
Like when I am using post with following fields like
id,
post,
date
it's working fine but if I use following fields its not working
p_id,
p_post,
p_date
it is adding extra codes in model
$this->belongsTo('Ps', [
'foreignKey' => 'p_id',
'joinType' => 'INNER'
]);
public function buildRules(RulesChecker $rules)
{
$rules->add($rules->existsIn(['p_id'], 'Ps'));
return $rules;
}
why ps is adding here? If I use articales table like same its become As.
Please help.
I would like to suggest you, read this article.
CakePHP naming convention documentation
In cakePHP framework everything you have to keep in mind while creating the table is the CakePHP naming conventions. In your case, This is happening because cakePHP expects the primary column of any table will be only 'id', and the foreign key for the table will be the Related table name with an underscore id
(ex: If product table BelogsTO categories you have to make a column in your product table as category_id)
In your case cakePHP considering p_id as a foreign key for the table P. And by default cakePHP has a validation for the forein key that the existsIn which means that while saving that p_id, it will check for the existance of id in P table.
In one sentense this is because of the naming convention issue. You can change only p_id to id and keeping other things same will work for you.
HAPPY CODING :)