chore: update document approval workflow and bug fixes

Modules/MaterialLogistics/app/Models/ProjectInventory.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace Modules\MaterialLogistics\Models;
+use Modules\MasterData\Models\Material;
+use Modules\MasterData\Models\MaterialGroup;
+
+use App\Traits\HasPublicIdentifier;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Modules\ProjectManagement\Models\Project;
+
+class ProjectInventory extends Model
+{
+    use HasPublicIdentifier;
+
+    protected $table = 'project_inventories';
+
+    protected $fillable = [
+        'project_id', 'material_id',
+        'on_hand_qty', 'floated_qty', 'allocated_qty', 'consumed_qty', 'unit_cost',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'on_hand_qty' => 'decimal:2',
+            'floated_qty' => 'decimal:2',
+            'allocated_qty' => 'decimal:2',
+            'consumed_qty' => 'decimal:2',
+            'unit_cost' => 'decimal:2',
+        ];
+    }
+
+    public function project(): BelongsTo
+    {
+        return $this->belongsTo(Project::class);
+    }
+
+    public function material(): BelongsTo
+    {
+        return $this->belongsTo(Material::class);
+    }
+
+    public function getAvailableQtyAttribute(): float
+    {
+        return (float) $this->on_hand_qty - (float) $this->allocated_qty;
+    }
+}
+