jiqu-library-server/app/Admin/Controllers/Store/StockController.php

<?php

namespace App\Admin\Controllers\Store;

use App\Models\Admin\Administrator;
use App\Models\Store\{Store, StockLog, ProductSku};
use App\Models\User;
use Carbon\Carbon;
use Dcat\Admin\{Form, Grid, Admin, Show};
use Dcat\Admin\Http\Controllers\AdminController;
use Illuminate\Database\Eloquent\Relations\Relation;

class StockController extends AdminController
{
    protected $translation = 'store-stock';
    protected function grid()
    {
        $grid = new Grid(StockLog::with(['store', 'productSku', 'tag']));

        $user = Admin::user();
        $canAdmin = $this->canAdmin();
        if (!$canAdmin) {
            $stores = $user->stores->pluck('id');
            $grid->model()->whereIn('store_id', $stores);
        }

        $grid->model()->orderBy('created_at', 'desc');

        $grid->column('store.title', '门店');
        $grid->column('productSku.name', '商品');
        $grid->column('tag.name', '类目');
        $grid->column('amount')->display(function ($value) {
            return '<span class="text-'.($value > 0 ? 'success' : 'danger') .'">'.$value.'</span>';
        });
        $grid->column('balance');
        $grid->column('operator', '操作人')->display(function ($v) {
            if ($v instanceof Administrator) {
                return $v->name . '<span class="label bg-primary">管理员</span>';
            } else if ($v instanceof User) {
                return $v->phone . '<span class="label bg-info">员工</span>';
            }
            
            return '未知身份';
        });
        $grid->column('remarks', '备注');
        $grid->column('created_at', '操作时间');

        $grid->showCreateButton($user->can('dcat.admin.store.stock.create'));
        $grid->enableDialogCreate();

        $grid->showViewButton($user->can('dcat.admin.store.stock.show'));

        $grid->filter(function (Grid\Filter $filter) {
            $filter->panel();
            $filter->equal('store_id')->select(Store::pluck('title', 'id'))->width(3);
            $filter->like('productSku.name', '商品')->width(3);
            $filter->equal('tag_id', '类目')->select(StockLog::tags()->pluck('name', 'id'))->width(3);
            $filter->where('operator', function ($q) {
                $input = $this->input;
                $condition = '%'.$input.'%';
                $q->whereHasMorph('operator', [Administrator::class, User::class], function ($q1, $type) use ($condition) {
                    $column = $type === Administrator::class ? 'name' : 'phone';

                    $q1->where($column, 'like', $condition);
                });
            })->placeholder('管理员姓名/员工手机号')->width(3);
            $filter->whereBetween('created_at', function ($q) {
                $start = data_get($this->input, 'start');
                $start = $start ? Carbon::createFromFormat('Y-m-d', $start) : null;
                $end = data_get($this->input, 'end');
                $end = $end ? Carbon::createFromFormat('Y-m-d', $end) : null;
                if ($start) {
                    if ($end) {
                        $q->whereBetween('created_at', [$start, $end]);
                    }
                    $q->where('created_at', '>=', $start);
                } elseif ($end) {
                    $q->where('created_at', '<=', $end);
                }
            }, '操作时间')->date()->width(3);
        });
        return $grid;
    }

    protected function form()
    {
        $form = Form::make(new StockLog());
        $form->select('tag_id')->options(StockLog::tags()->pluck('name', 'id'))->required();
        $form->select('store_id')->options(Store::pluck('title', 'id'))->required()->load('product_sku_id', 'api/product-by-store');
        $form->select('product_sku_id')->required();
        $form->number('amount')->help('正数为增加, 负数为减少')->default(0)->required();
        $form->text('remarks');
        $form->hidden('operator_type');
        $form->hidden('operator_id');
        $form->hidden('balance');

        $form->saving(function (Form $form) {
            if ($form->isCreating()) {
                $store_id = $form->input('store_id');
                $product_sku_id = $form->input('product_sku_id');
                $amount = $form->input('amount');
                if ($amount == 0) {
                    return $form->response()->error('数量不能为0');
                }
                $product = ProductSku::where(compact('store_id', 'product_sku_id'))->first();
                if (!$product) {
                    return $form->response()->error('门店不存在该商品');
                }
                
                // 修改库存
                $balance = $product->amount + $amount;
                if ($balance < 0) {
                    return $form->response()->error('商品库存不能小于0');
                }
                $form->input('balance', $balance);
                $product->update([
                    'amount' => $balance
                ]);

                // 操作人
                $administrator = Admin::user();
                $form->input('operator_type', $administrator->getMorphClass());
                $form->input('operator_id', $administrator->id);
            }
        });
        return $form;
    }

    protected function detail($id)
    {
        $show = Show::make($id, StockLog::with(['store', 'productSku', 'tag']));
        $show->field('store.title', '门店');
        $show->field('product_sku.name', '商品');
        $show->field('product_sku.specs', '商品规格')->label();
        $show->field('tag.name', '类目');
        $show->field('amount')->as(function ($value) {
            return '<span class="text-'.($value > 0 ? 'success' : 'danger') .'">'.$value.'</span>';
        })->escape(false);
        $show->field('balance');
        $show->field('operator', '操作人')->as(function () {
            $v = $this->operator;
            if ($v instanceof \App\Models\Admin\Administrator) {
                return $v->name . '<span class="label bg-primary">管理员</span>';
            } else if ($v instanceof \App\Models\User) {
                return $v->phone . '<span class="label bg-info">员工</span>';
            }
            
            return '未知身份';
        })->escape(false);
        $show->field('remarks', '备注');
        $show->field('created_at', '操作时间');

        $show->panel()->tools(function ($tools) {
            $tools->disableEdit();
            $tools->disableDelete();
        });

        return $show;
    }

    protected function canAdmin()
    {
        return Admin::user()->isRole('administrator');
    }
}