chore: update document approval workflow and bug fixes

Modules/MasterData/app/Models/Material.php

@@ -0,0 +1,72 @@
+<?php
+
+namespace Modules\MasterData\Models;
+
+use App\Traits\BelongsToTenant;
+use App\Traits\HasPublicIdentifier;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+use Modules\MaterialLogistics\Models\WarehouseStock;
+use Modules\MaterialLogistics\Models\ProjectInventory;
+use Modules\MaterialLogistics\Models\MaterialRequirement;
+use Modules\MaterialLogistics\Models\MaterialDeployment;
+
+class Material extends Model
+{
+    use HasPublicIdentifier, BelongsToTenant;
+
+    protected $fillable = [
+        'name', 'sku', 'category', 'unit',
+        'unit_cost', 'description', 'status', 'type', 'contractor_id',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'unit_cost' => 'decimal:2',
+        ];
+    }
+
+    public function components(): HasMany
+    {
+        return $this->hasMany(MaterialComponent::class, 'parent_id');
+    }
+
+    public function parentKits(): HasMany
+    {
+        return $this->hasMany(MaterialComponent::class, 'component_id');
+    }
+
+    public function warehouseStocks(): HasMany
+    {
+        return $this->hasMany(WarehouseStock::class);
+    }
+
+    public function projectInventories(): HasMany
+    {
+        return $this->hasMany(ProjectInventory::class);
+    }
+
+    public function inventories(): HasMany
+    {
+        return $this->hasMany(ProjectInventory::class);
+    }
+
+    public function requirements(): HasMany
+    {
+        return $this->hasMany(MaterialRequirement::class);
+    }
+
+    public function deployments(): HasMany
+    {
+        return $this->hasMany(MaterialDeployment::class);
+    }
+
+    public function groups(): BelongsToMany
+    {
+        return $this->belongsToMany(MaterialGroup::class, 'material_group_items')
+            ->withTimestamps();
+    }
+}