Custom Fields Development

When to Use This Skill

Use when:

• Adding custom fields capability to an Eloquent model
• Integrating custom fields into Filament resources (forms, tables, infolists)
• Configuring field types, validation, or visibility
• Working with feature flags (encryption, multi-tenancy, sections)
• Creating CSV importers/exporters with custom field support

Quick Start

1. Add Trait to Model

use Relaticle\CustomFields\Models\Concerns\UsesCustomFields;
use Relaticle\CustomFields\Models\Contracts\HasCustomFields;

class Contact extends Model implements HasCustomFields
{
    use UsesCustomFields;
}

2. Register Plugin in Panel

use Relaticle\CustomFields\CustomFieldsPlugin;

public function panel(Panel $panel): Panel
{
    return $panel
        ->plugins([
            CustomFieldsPlugin::make()
                ->authorize(fn () => auth()->user()->isAdmin()),
        ]);
}

3. Publish and Run Migrations

php artisan vendor:publish --tag=custom-fields-migrations
php artisan migrate

Filament Integration

Use the CustomFields facade to generate form/table/infolist components.

Form Schema

use Relaticle\CustomFields\Facades\CustomFields;

public static function form(Form $form): Form
{
    return $form->schema([
        TextInput::make('name')->required(),
        // Add custom fields after regular fields
        CustomFields::form()->forSchema($form)->build(),
    ]);
}

Builder methods:

• forSchema(Schema $schema) - Auto-detect model from form/infolist
• forModel(Model|string $model) - Explicit model binding
• only(['code1', 'code2']) - Include only specific fields
• except(['code1']) - Exclude specific fields
• withoutSections() - Flatten fields without section grouping

Table Columns and Filters

use Relaticle\CustomFields\Facades\CustomFields;

public static function table(Table $table): Table
{
    $customFields = CustomFields::table()->forModel(Contact::class);

    return $table
        ->columns([
            TextColumn::make('name'),
            ...$customFields->columns(),
        ])
        ->filters([
            ...$customFields->filters(),
        ]);
}

Infolist Entries

use Relaticle\CustomFields\Facades\CustomFields;

public static function infolist(Infolist $infolist): Infolist
{
    return $infolist->schema([
        TextEntry::make('name'),
        CustomFields::infolist()->forSchema($infolist)->build(),
    ]);
}

CSV Import/Export

use Relaticle\CustomFields\Facades\CustomFields;

// In Importer class
public function getColumns(): array
{
    return [
        ImportColumn::make('name'),
        ...CustomFields::importer()->forModel(Contact::class)->columns()->toArray(),
    ];
}

// In Exporter class
public function getColumns(): array
{
    return [
        ExportColumn::make('name'),
        ...CustomFields::exporter()->forModel(Contact::class)->columns()->toArray(),
    ];
}

Available Field Types

Field Type Key Naming

Convention: Use kebab-case for all field type keys.

For custom field types, use a project prefix to avoid conflicts:

Why prefix?

• Avoids accidental override of built-in types
• Future-proof against new package versions
• Clear identification in database/UI
• Safe for multi-vendor environments

Feature Flags

Configure in config/custom-fields.php using FeatureConfigurator:

use Relaticle\CustomFields\Enums\CustomFieldsFeature;
use Relaticle\CustomFields\FeatureSystem\FeatureConfigurator;

'features' => FeatureConfigurator::configure()
    ->enable(
        CustomFieldsFeature::FIELD_CONDITIONAL_VISIBILITY,
        CustomFieldsFeature::FIELD_ENCRYPTION,
        CustomFieldsFeature::FIELD_OPTION_COLORS,
        CustomFieldsFeature::UI_TABLE_COLUMNS,
        CustomFieldsFeature::UI_TABLE_FILTERS,
        CustomFieldsFeature::SYSTEM_SECTIONS,
    )
    ->disable(
        CustomFieldsFeature::SYSTEM_MULTI_TENANCY,
    ),

Feature Categories:

Configuration

Entity Discovery

use Relaticle\CustomFields\EntitySystem\EntityConfigurator;

'entity_configuration' => EntityConfigurator::configure()
    ->discover(app_path('Models'))
    ->exclude(['User', 'Team'])
    ->cache(enabled: true, ttl: 3600),

Field Type Control

use Relaticle\CustomFields\FieldTypeSystem\FieldTypeConfigurator;

'field_type_configuration' => FieldTypeConfigurator::configure()
    ->enabled(['text', 'email', 'select', 'number'])
    ->disabled(['file-upload'])
    ->discover(true)
    ->cache(enabled: true),

Custom Tenant Resolver

For multi-tenancy outside Filament panels:

use Relaticle\CustomFields\CustomFields;

// In AppServiceProvider::boot()
CustomFields::resolveTenantUsing(fn () => auth()->user()?->team_id);

Programmatic Field Access

// Get all custom fields for a model
$fields = $contact->customFields()->get();

// Get a specific field value
$value = $contact->getCustomFieldValue($customField);

// Save a field value
$contact->saveCustomFieldValue($customField, 'new value');

// Save multiple field values
$contact->saveCustomFields([
    'industry' => 'Technology',
    'company_size' => 'Enterprise',
]);

Database Schema

Four tables are created:

• custom_field_sections - Optional grouping of fields
• custom_fields - Field definitions (name, code, type, validation)
• custom_field_options - Choice options for select/checkbox fields
• custom_field_values - Polymorphic storage of field values

Values are stored in type-specific columns: string_value, text_value, integer_value, float_value, boolean_value, date_value, datetime_value, json_value.

Custom Models

Override default models for custom behavior:

use Relaticle\CustomFields\CustomFields;

// In AppServiceProvider::boot()
CustomFields::useCustomFieldModel(MyCustomField::class);
CustomFields::useValueModel(MyCustomFieldValue::class);
CustomFields::useOptionModel(MyCustomFieldOption::class);
CustomFields::useSectionModel(MyCustomFieldSection::class);

Register Custom Field Types

use Relaticle\CustomFields\CustomFieldsPlugin;

CustomFieldsPlugin::make()
    ->registerFieldTypes([
        MyCustomFieldType::class,
    ])

Custom field types must extend Relaticle\CustomFields\FieldTypeSystem\BaseFieldType.