So I have a many to many relation in Laravel. provider_locations has a ManyToMany relationship with transport_modes so I've made a pivot table, provider_locations_transport_modes
I have a form which generates a nested array like so:
0 => array [
"full_address" => "Full Address"
"phone_number" => "5555555"
"transport_modes" => array [
0 => "2"
1 => "1"
]
]
So on creation, I'm attempting something like
// First create Provider
$provider = Provider::create([
'name' => $data['providerName'],
'provider_code' => $data['providerCode'],
'phone_number' => $data['phoneNumber'],
]);
// Then create provider_location, associated with provider
foreach ($data['providerLocations'] as $providerLocation) {
$provider->ProviderLocations()->create([
'full_address' => $providerLocation['full_address'],
'phone_number' => $providerLocation['phone_number'],
]);
// Now attach values to pivot table?
foreach ($providerLocation['transport_modes'] as $transportMode) {
$provider->ProviderLocations()->TransportModes()->attach($transportMode);
}
}
It's been giving me the error that "Call to undefined method Illuminate\Database\Eloquent\Relations\HasMany::TransportModes()"
TransportMode.php has a belongsToMany relation with provider_locations, and ProviderLocation.php has a belongsToMany relation with transport_modes, so the relation should be set up correctly.
What am I doing wrong?
Related
I have users that can have multiple parameters. These are called for example user_param_1, user_param_2, ..., user_param_n. This is dynamic. It is a separate table user_parameters, which stores id, user_id, name and value. The relationship is a belongsTo and hasMany between Users and UserParameters. The problem is:
When editing, I want to keep it dynamically and if the user has an user_param_n+1, it should be created. But I already have problems to write the condition for the existing parameters.
I create myself an userParameters array, which contains from the $request variable only the necessary parameters. The array looks like this:
[
0 => [
"name" => "par1"
"value" => "var1"
]
1 => [
"name" => "par2"
"value" => "var2"
]
2 => [
"name" => "par3"
"value" => "var3"
]
]
Then I want to save it. My controller knows the user, so I can access to $user->id.
foreach ($userParameters as $userParameter) {
$user->parameters()->updateOrCreate(['id' => $user->parameters->id, 'user_id' => $user->id], $userParameter);
}
The issue is, that $user->parameters is an array of eloquent models. The condition is wrong. I can't access id directly. But how I can solve it? I need something like "['id' => [IF-DATABASE-ID-EXISTS-IN-ARRAY-$user-parameters]"... but how in an eloquent way?
Thanks in advance!
Best regards
I think you need to get the existing parameter using user_id and parameter_name cuz it's the uniqueness of that parameter row, if there is no parameter with this name it will create it with user_id & parameter_name and parameter_value passed to updateOrCreate function
foreach ($parameters_from_request as $parameter) {
$user->parameters()
->updateOrCreate(
[
'name' => $parameter['name'] ,
'user_id' => $user->id
],[
'name' => $parameter['name'],
'value'=> $parameter['value']
]);
}
consider i have 2 models that have the pivot relationship many to many between them . now when i want to insert the pivot table how can i achieve it currently i am doing this :
DB::table('model1_model2')
->insert([
'something' => $something,
'something2' => $something2,
]);
and i kinda feel that its not right and i have do save it with some relation ship or sync !! any idea how to do this ?
EDIT‌:
Added relationship
public function accommodationRoom()
{
return $this->belongsToMany(AccommodationRoom::class)->withPivot('guest_first_name','guest_last_name','guest_cell_phone','guest_nationality_id');
}
As mentioned in the Inserting & Updating Related Models - Many To Many Relationships documentation:
When attaching a relationship to a model, you may also pass an array of additional data to be inserted into the intermediate table:
$model1->accommodationRoom()->attach($accommodationRoomId, [
'something' => $something,
'something2' => $something2,
]);
If you're attaching multiple relations then you would would pass a multidimensional array with the keys are the id of the relation and the values are the arrays of additional data:
$model1->accommodationRoom()->attach( [
1 => ['something' => $something, 'something2' => $something2,],
3 => ['something' => 'something else', 'something2' => $something2,],
]);
The same is true for the sync() method as well.
I would like to create a junction table tbl_guid_cost_centre that gets taken care of without me manually saving it to the database. I tried adding this to my relations:
'costCentre' => [
self::HAS_ONE,
'CostCentre',
'guid_to',
'foreignKey' => 'guid',
'tbl_guid_cost_centre(guid_to, cost_center_id)',
"order" => "id desc"],
so that my when saving the costCentre, a row is created for it in my tbl_guid_cost_centre. However I'm getting the error:
Property "CHasOneRelation.0" is not defined.
Any suggestion?
You can have your junction table with the keyword through in your relations:
public function relations() {
'guidCostCentre' => [
self::HAS_ONE,
'GuidCostCentre',
['guid_to' => 'guid']
],
'costCentre' => [
self::HAS_ONE,
'CostCentre',
'cost_centre_id',
'through' => 'guidCostCentre'
]
}
You're defining HAS_ONE relation in a wrong way. The first three elements of relation configuration array should be: relation type, related model name and foreign keys definition. All further elements should be indexed by keys related to relation properties. 'tbl_guid_cost_centre(guid_to, cost_center_id)', probably generates this error, because it does not have a key, so it is treaded as a value for 0 property. You didn't share any details, so it is hard to guess what you want to achieve, but you should start from something like this:
'costCentre' => [
self::HAS_ONE,
'CostCentre',
'guid_to',
'order' => 'id desc',
],
And add additional settings at the end array with correct key.
Some examples and explanation you can find in the documentation: https://www.yiiframework.com/doc/guide/1.1/en/database.arr#declaring-relationship
Lets say that i have the following associations schema:
Person => [
hasMany => [
Courses => [Person.id = Courses.person_id]
],
Courses => [
belongTo => [
Schools => [School.id = Courses.school_id]
]
When I view a person through mydomain/person/view/1 I need to have a table to show the Courses of that Person. Inside this table each Course need to show the name of the School.
So I tried the following on my controller:
public function view($id = null)
{
$person = $this->Persons->get($id, [
'contain' => [
'Courses.Schools',
]
]);
$this->set('persons', $test);
$this->set('_serialize', ['person']);
}
What I get on view is:
Person => [
firstname => test,
lastname => test,
courses => [
0 => [
id => 1,
shool_id => 1,
person_id => 1,
]
]
]
There is no school in the array although I used it in the contain option. So I can't display the name of the school. Am I doing anything wrong? Is there any guideline how can I show these fields on the view.
Basically I am sorry for this. This is a caused because of the debugKit. The debugkit is showing through the variables panel the associations only until the level I have mentioned but I used a var_dump and saw that the associations and the related fields are fetched/loaded correctly. I trusted the debugKit and I thought that they where not loaded.
Im trying to save data inside a pivot table with an extra field called data.
when i save i have this array:
[
5 => "files"
4 => "pictures"
3 => "tags"
1 => "thumbs"
]
My table looks like this:
project_id
option_id
name
The ids shown above refer to option_id and the string to name inside the database.
When i try to use sync like this: $project->options()->sync($data);
$data is the array shown above
Im getting a error thats its trying to save the option_id with "files".
Here is how i build up the data that i use for sync:
Im trying to get what you suggested but dont know how to achieve it:
here is how i build up the array:
foreach($request->input('option_id') as $id) {
$option['option_id'][] = $id;
$option['data'][] = $request->input('data')[$id];
}
$data = array_combine($option['option_id'], $option['data']);
This is covered in the manual:
Adding Pivot Data When Syncing
You may also associate other pivot table values with the given IDs:
$user->roles()->sync(array(1 => array('expires' => true)));
In your example, you would have to change your array to look something like below but I believe this would translate to:
$data = [
5 => [ 'name' => "files" ],
4 => [ 'name' => "pictures" ],
3 => [ 'name' => "tags" ],
1 => [ 'name' => "thumbs" ],
];
$project->options()->sync($data);
I believe you may also need to modify how your Project model relates itself to your Options model:
// File: app/model/Project.php
public function options()
{
return $this->belongsToMany('Option')->withPivot('name');
}
This is also noted in the linked-to manual page:
By default, only the keys will be present on the pivot object. If your pivot table contains extra attributes, you must specify them when defining the relationship.
Update
Try creating your $data array like this:
$data = [];
foreach($request->input('option_id') as $id) {
$data[$id] = [ 'name' => $request->input('data')[$id] ];
}