91 lines
2.4 KiB
PHP
91 lines
2.4 KiB
PHP
<?php
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namespace App\Models;
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use Illuminate\Database\Eloquent\Model;
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use Illuminate\Database\Eloquent\Relations\HasMany;
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/**
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* CategoryApproach Model
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*
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* @property string $name Name of the category approach.
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* @property-read \Carbon\Carbon $created_at Creation timestamp.
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* @property-read \Carbon\Carbon $updated_at Last update timestamp.
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*/
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class CategoryApproach extends Model
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{
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/**
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* Maximum number of category approaches allowed in the system.
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*
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* @var int
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*/
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public const MAX_CATEGORIES = 5;
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/**
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* Minimum number of category approaches required in the system.
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*
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* @var int
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*/
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public const MIN_CATEGORIES = 1;
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/**
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* The attributes that are mass assignable.
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*
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* Defines which attributes can be filled via mass assignment operations.
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*
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* @var array<int, string>
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*/
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protected $fillable = [
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'name',
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];
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/**
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* Validate that the maximum number of category approaches has not been exceeded.
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*
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* @throws \Exception If the maximum number of categories has been exceeded.
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*/
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protected function validateMaxCategoryCount(): void
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{
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if (static::count() > self::MAX_CATEGORIES) {
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throw new \Exception('Cannot create more than ' . self::MAX_CATEGORIES . ' category approaches.');
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}
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}
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/**
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* Validate that the minimum number of category approaches is maintained.
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*
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* @throws \Exception If deletion would violate the minimum category requirement.
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*/
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protected static function validateMinCategoryCount(): void
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{
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if (static::count() <= self::MIN_CATEGORIES) {
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throw new \Exception('At least ' . self::MIN_CATEGORIES . ' category approach is required.');
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}
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}
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/**
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* Perform any actions required after the model boots.
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*/
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protected static function booting(): void
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{
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static::creating(function (self $model) {
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$model->validateMaxCategoryCount();
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});
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static::updating(function (self $model) {
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$model->validateMaxCategoryCount();
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});
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static::deleting(function (self $model) {
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static::validateMinCategoryCount();
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});
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}
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/**
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* Get all section approaches associated with this category approach.
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*/
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public function sectionsApproaches(): HasMany
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{
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return $this->hasMany(SectionApproach::class, 'category_id');
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}
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}
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