First commit

app/Models/Category.php

@@ -0,0 +1,75 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Support\Str;
+
+class Category extends Model
+{
+    use SoftDeletes;
+
+    protected $fillable = [
+        'name',
+        'slug',
+        'description',
+        'color',
+        'is_active',
+        'sort_order',
+        'created_by',
+    ];
+
+    protected $casts = [
+        'is_active' => 'boolean',
+        'sort_order' => 'integer',
+    ];
+
+    // Auto-generate slug jika tidak disediakan
+    protected static function booted(): void
+    {
+        static::creating(function (Category $category) {
+            if (empty($category->slug)) {
+                $category->slug = Str::slug($category->name);
+            }
+        });
+    }
+
+    // === Relationships ===
+
+    public function documents(): HasMany
+    {
+        return $this->hasMany(Document::class);
+    }
+
+    public function knowledgeItems(): HasMany
+    {
+        return $this->hasMany(KnowledgeItem::class);
+    }
+
+    public function creator()
+    {
+        return $this->belongsTo(User::class, 'created_by');
+    }
+
+    // === Scopes ===
+
+    public function scopeActive(Builder $query): Builder
+    {
+        return $query->where('is_active', true);
+    }
+
+    public function scopeOrdered(Builder $query): Builder
+    {
+        return $query->orderBy('sort_order')->orderBy('name');
+    }
+
+    // === Accessors ===
+
+    public function getActiveDocumentCountAttribute(): int
+    {
+        return $this->documents()->where('is_active', true)->count();
+    }
+}