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feat: Phase 22 — Warehouse transfers with stock movement tracking
https://claude.ai/code/session_01RdUGwo74JXChRCF88Yu27d
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‎erp/app/Modules/Inventory/Http/Controllers/WarehouseTransferController.php‎

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<?php
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namespace App\Modules\Inventory\Http\Controllers;
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use App\Http\Controllers\Controller;
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use App\Modules\Inventory\Models\Product;
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use App\Modules\Inventory\Models\Warehouse;
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use App\Modules\Inventory\Models\WarehouseTransfer;
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use Illuminate\Http\Request;
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use Inertia\Inertia;
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class WarehouseTransferController extends Controller
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{
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public function index(Request $request)
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{
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$this->authorize('viewAny', WarehouseTransfer::class);
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$tenantId = $request->user()->tenant_id;
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$transfers = WarehouseTransfer::where('tenant_id', $tenantId)
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->with(['product', 'fromWarehouse', 'toWarehouse'])
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->latest()
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->paginate(50);
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return Inertia::render('Inventory/WarehouseTransfers/Index', ['transfers' => $transfers]);
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}
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public function create(Request $request)
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{
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$this->authorize('create', WarehouseTransfer::class);
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$tenantId = $request->user()->tenant_id;
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$products = Product::where('tenant_id', $tenantId)->where('is_active', true)->orderBy('name')->get(['id', 'name', 'sku']);
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$warehouses = Warehouse::where('tenant_id', $tenantId)->orderBy('name')->get(['id', 'name']);
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return Inertia::render('Inventory/WarehouseTransfers/Create', compact('products', 'warehouses'));
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}
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public function store(Request $request)
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{
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$this->authorize('create', WarehouseTransfer::class);
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$data = $request->validate([
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'product_id' => 'required|exists:products,id',
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'from_warehouse_id' => 'required|exists:warehouses,id',
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'to_warehouse_id' => 'required|exists:warehouses,id|different:from_warehouse_id',
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'quantity' => 'required|numeric|min:0.0001',
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'reference' => 'nullable|string|max:100',
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'notes' => 'nullable|string|max:500',
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]);
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$data['tenant_id'] = $request->user()->tenant_id;
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// Bind tenant so StockMovement::record() can resolve tenant_id for stock levels
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if (!app()->has('tenant')) {
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$tenant = \App\Modules\Core\Models\Tenant::find($data['tenant_id']);
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if ($tenant) {
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app()->instance('tenant', $tenant);
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}
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}
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try {
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WarehouseTransfer::execute($data);
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} catch (\DomainException $e) {
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return back()->withErrors(['quantity' => $e->getMessage()]);
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}
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return redirect('/inventory/warehouse-transfers')->with('success', 'Transfer completed.');
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}
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}

‎erp/app/Modules/Inventory/Models/WarehouseTransfer.php‎

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<?php
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namespace App\Modules\Inventory\Models;
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use App\Models\User;
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use App\Modules\Core\Traits\BelongsToTenant;
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use Illuminate\Database\Eloquent\Model;
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use Illuminate\Database\Eloquent\Relations\BelongsTo;
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use Illuminate\Support\Facades\Auth;
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use Illuminate\Support\Facades\DB;
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class WarehouseTransfer extends Model
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{
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use BelongsToTenant;
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protected $fillable = [
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'tenant_id', 'product_id', 'from_warehouse_id', 'to_warehouse_id',
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'quantity', 'reference', 'notes', 'status', 'created_by',
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];
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protected $casts = [
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'quantity' => 'float',
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];
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public function product(): BelongsTo
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{
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return $this->belongsTo(Product::class);
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}
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public function fromWarehouse(): BelongsTo
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{
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return $this->belongsTo(Warehouse::class, 'from_warehouse_id');
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}
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public function toWarehouse(): BelongsTo
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{
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return $this->belongsTo(Warehouse::class, 'to_warehouse_id');
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}
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public function creator(): BelongsTo
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{
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return $this->belongsTo(User::class, 'created_by');
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}
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public static function execute(array $data): static
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{
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return DB::transaction(function () use ($data) {
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// Record OUT from source warehouse
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StockMovement::record([
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'product_id' => $data['product_id'],
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'warehouse_id' => $data['from_warehouse_id'],
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'type' => 'out',
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'quantity' => $data['quantity'],
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'reference' => $data['reference'] ?? null,
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'notes' => $data['notes'] ?? null,
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]);
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// Record IN to destination warehouse
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StockMovement::record([
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'product_id' => $data['product_id'],
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'warehouse_id' => $data['to_warehouse_id'],
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'type' => 'in',
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'quantity' => $data['quantity'],
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'reference' => $data['reference'] ?? null,
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'notes' => $data['notes'] ?? null,
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]);
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// Create the transfer record
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return static::create([
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'tenant_id' => $data['tenant_id'],
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'product_id' => $data['product_id'],
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'from_warehouse_id' => $data['from_warehouse_id'],
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'to_warehouse_id' => $data['to_warehouse_id'],
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'quantity' => $data['quantity'],
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'reference' => $data['reference'] ?? null,
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'notes' => $data['notes'] ?? null,
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'status' => 'completed',
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'created_by' => Auth::id(),
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]);
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});
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}
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}

‎erp/app/Modules/Inventory/Policies/WarehouseTransferPolicy.php‎

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<?php
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namespace App\Modules\Inventory\Policies;
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use App\Models\User;
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use App\Modules\Inventory\Models\WarehouseTransfer;
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class WarehouseTransferPolicy
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{
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public function viewAny(User $user): bool
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{
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return $user->can('inventory.view');
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}
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public function view(User $user, WarehouseTransfer $transfer): bool
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{
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return $user->can('inventory.view');
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}
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public function create(User $user): bool
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{
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return $user->can('inventory.create');
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}
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public function delete(User $user, WarehouseTransfer $transfer): bool
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{
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return $user->can('inventory.delete');
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}
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}

‎erp/app/Modules/Inventory/Providers/InventoryServiceProvider.php‎

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namespace App\Modules\Inventory\Providers;
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use App\Modules\Inventory\Models\Product;
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use App\Modules\Inventory\Models\WarehouseTransfer;
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use App\Modules\Inventory\Policies\ProductPolicy;
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use App\Modules\Inventory\Policies\WarehouseTransferPolicy;
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use Illuminate\Support\Facades\Gate;
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use Illuminate\Support\ServiceProvider;
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$this->loadRoutesFrom(__DIR__ . '/../routes/inventory.php');
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Gate::policy(Product::class, ProductPolicy::class);
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Gate::policy(WarehouseTransfer::class, WarehouseTransferPolicy::class);
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}
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}

‎erp/app/Modules/Inventory/routes/inventory.php‎

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use App\Modules\Inventory\Http\Controllers\StockMovementController;
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use App\Modules\Inventory\Http\Controllers\SupplierController;
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use App\Modules\Inventory\Http\Controllers\WarehouseController;
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use App\Modules\Inventory\Http\Controllers\WarehouseTransferController;
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use Illuminate\Support\Facades\Route;
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Route::middleware(['web', 'auth', 'verified'])->prefix('inventory')->name('inventory.')->group(function () {
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Route::post('purchase-orders/{purchaseOrder}/approve', [PurchaseOrderController::class, 'approve'])->name('purchase-orders.approve');
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Route::post('purchase-orders/{purchaseOrder}/receive', [PurchaseOrderController::class, 'receive'])->name('purchase-orders.receive');
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Route::post('purchase-orders/{purchaseOrder}/cancel', [PurchaseOrderController::class, 'cancel'])->name('purchase-orders.cancel');
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// Warehouse Transfers
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Route::resource('warehouse-transfers', WarehouseTransferController::class)->only(['index', 'create', 'store']);
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});

‎erp/database/migrations/2026_06_01_070706_create_warehouse_transfers_table.php‎

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<?php
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use Illuminate\Database\Migrations\Migration;
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use Illuminate\Database\Schema\Blueprint;
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use Illuminate\Support\Facades\Schema;
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return new class extends Migration
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{
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public function up(): void
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{
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Schema::create('warehouse_transfers', function (Blueprint $table) {
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$table->id();
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$table->foreignId('tenant_id')->constrained()->cascadeOnDelete();
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$table->foreignId('product_id')->constrained()->cascadeOnDelete();
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$table->foreignId('from_warehouse_id')->constrained('warehouses')->cascadeOnDelete();
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$table->foreignId('to_warehouse_id')->constrained('warehouses')->cascadeOnDelete();
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$table->decimal('quantity', 12, 4);
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$table->string('reference')->nullable();
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$table->text('notes')->nullable();
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$table->enum('status', ['pending', 'completed', 'cancelled'])->default('completed');
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$table->foreignId('created_by')->nullable()->constrained('users')->nullOnDelete();
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$table->timestamps();
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});
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}
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public function down(): void
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{
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Schema::dropIfExists('warehouse_transfers');
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}
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};

‎erp/resources/js/Components/Layout/Sidebar.tsx‎

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{ label: 'Suppliers', href: '/inventory/suppliers', icon: inventoryIcon },
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{ label: 'Stock Movements', href: '/inventory/stock-movements', icon: inventoryIcon },
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{ label: 'Purchase Orders', href: '/inventory/purchase-orders', icon: inventoryIcon },
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{ label: 'Transfers', href: '/inventory/warehouse-transfers', icon: inventoryIcon },
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],
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},
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{

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