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Belongs To Many Field Nova With Dependant

Belongs To Many field to represent a many to many relationship in just a field. This field allow attaching relationships easily.

  • Use version 3 for Nova 4
  • Use version 2 for Nova 3

Also you can:

  • Pass query to the multiple select
  • Depends on BelongsTo field
  • It is available in index, detail and forms!

image

Installation

composer require benjacho/belongs-to-many-field

Usage

In the resource you need to pass:

  • Method make ('label', 'many to many relationship function name', 'Nova Resource Relationship')
use Benjacho\BelongsToManyField\BelongsToManyField;

public function fields(Request $request){
    return [
        ..., //If you are using with BelongsToMany native Field, put this field after

        BelongsToManyField::make('Role Label', 'roles', 'App\Nova\Role'),
    ];
}

Functions

Function Param default description
optionsLabel String 'name' If you don't have column 'name' in your relationship table, use this method. This displays in index and detail Ejm (optionsLabel('full_role_name')) you can also access nested object keys with dot notation like this (optionsLabel('name.en')). Note that this field uses the relation resource title property, so if you want translated versions on your form change app.locale config value
isAction Boolean true This method is when you need this field in actions, this puts height of field in 350px, and converts in action.
setMultiselectProps Array [] this method allows you to set properties for the vue multiselect component
dependsOn String, String null, null This method allows you to depend on belongsto field, this make an auto query
canSelectAll String, Boolean 'Select All', true This method allows you to have a select all checkbox and display custom message
showAsListInDetail Boolean true This method allows you to display as list in detail
  • Method optionsLabel('columnName'), this method is when you don't have column 'name' in your table and you want to label by another column name. By default it tracks by label 'name'.

IMPORTANT

  • If you want to label by another column name when displaying in forms, you need to set the title() method on your relationship resource, this method returns an string that is used to label it, also don't forget to add optionsLabel() method to show in detail and index.
use Benjacho\BelongsToManyField\BelongsToManyField;

public function fields(Request $request){
    BelongsToManyField::make('Role Label', 'roles', 'App\Nova\Role')->optionsLabel('full_role_name'),
}
  • To obtain the data that was sent in action:
public function handle(ActionFields $fields, Collection $models)
{
    //note that roles is the many to many relationship function name
    $values = array_column(json_decode(request()->roles, true),'id');

    foreach ($models as $model) {
        $model->roles()->sync($values);
    }
}
     BelongsToManyField::make('Role Label', 'roles', 'App\Nova\Role')
     ->options(\App\Role::all())
     ->setMultiselectProps([
        'selectLabel' => 'click for select',
        // and others from docs
     ]);
  • Method dependsOn($dependsOnvalue, $dependsOnKey), This method allows you to depend on belongsto field, this make an auto query
     BelongsTo::make('Association', 'association', 'App\Nova\Association'),

     BelongsToManyField::make('Participants', 'participant', 'App\Nova\Participant')
     ->dependsOn('association', 'association_id'),
  • Method canSelectAll($messageSelectAll), This method allows you to display select all checkbox, if you dont pass message default is displayed
     BelongsToManyField::make('Participants', 'participant', 'App\Nova\Participant')
     ->canSelectAll('Seleccionar Todo'),
  • Method showAsListInDetail(), This method allows you to change the default view to list in detail
     BelongsToManyField::make('Participants', 'participant', 'App\Nova\Participant')
     ->showAsListInDetail(),

Validations

This package implement all Laravel Validations, you need to pass the rules in rules method, rules are listed on laravel validations rules for arrays*.

use Benjacho\BelongsToManyField\BelongsToManyField;

public function fields(Request $request){
    return [
        ...,
        BelongsToManyField::make('Role Label', 'roles', 'App\Nova\Role')->rules('required', 'min:1', 'max:5', 'size:3', new CustomRule()),
    ];
}

image

Translations

To publish translations:

php artisan vendor:publish --provider="Benjacho\BelongsToManyField\FieldServiceProvider"

This package come with the following translation for the vue-multiselect plugin.

  • en, ru, and nl.

To translate validations use Laravel validation translations.

Credits to: https://github.com/manmohanjit/nova-belongs-to-dependency

TODO

This project was my first Open Source project, so I wanted to add a roadmap.

I migrated this package to use Nova 4, this migration considered only the detail, index and form views. It means that it can have bugs with other features.

  • Add Tests to the Project, adding test will add a certain level of quality code. Also it will help to achieve the other features.
  • Test all functions implemented and improve wiki.
  • Implement native dependability from Nova, this considers only to have dependsOn a BelongsTo field
  • Implement translations with Spatie Translatable to es, fr, de
  • Support for inline creation via native Nova 4
  • builtin theme inherited from nova theme