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280
dafuweng-webman/app/admin/library/traits/Backend.php
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280
dafuweng-webman/app/admin/library/traits/Backend.php
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<?php
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declare(strict_types=1);
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namespace app\admin\library\traits;
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use Throwable;
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use support\Response;
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/**
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* 后台控制器 trait（Webman 迁移版）
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* 提供 CRUD 方法：index、add、edit、del、sortable
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* 方法需返回 Response，供 Webman 路由直接返回
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*/
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trait Backend
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{
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/**
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* 排除入库字段
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*/
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protected function excludeFields(array $params): array
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{
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if (!is_array($this->preExcludeFields)) {
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$this->preExcludeFields = explode(',', (string) $this->preExcludeFields);
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}
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foreach ($this->preExcludeFields as $field) {
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if (array_key_exists($field, $params)) {
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unset($params[$field]);
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}
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}
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return $params;
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}
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/**
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* 查看（内部实现，由 Backend::index(Request) 调用）
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*/
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protected function _index(): Response
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{
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if ($this->request && $this->request->get('select')) {
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$this->select();
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}
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list($where, $alias, $limit, $order) = $this->queryBuilder();
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$res = $this->model
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->field($this->indexField)
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->withJoin($this->withJoinTable, $this->withJoinType)
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->alias($alias)
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->where($where)
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->order($order)
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->paginate($limit);
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return $this->success('', [
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'list' => $res->items(),
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'total' => $res->total(),
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'remark' => get_route_remark(),
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]);
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}
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/**
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* 添加（内部实现）
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*/
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protected function _add(): Response
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{
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if ($this->request && $this->request->method() === 'POST') {
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$data = $this->request->post();
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if (!$data) {
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return $this->error(__('Parameter %s can not be empty', ['']));
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}
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$data = $this->excludeFields($data);
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if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
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$data[$this->dataLimitField] = $this->auth->id;
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}
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$result = false;
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$this->model->startTrans();
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try {
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if ($this->modelValidate) {
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$validate = str_replace("\\model\\", "\\validate\\", get_class($this->model));
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if (class_exists($validate)) {
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$validate = new $validate();
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if ($this->modelSceneValidate) {
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$validate->scene('add');
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}
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$validate->check($data);
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}
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}
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$result = $this->model->save($data);
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$this->model->commit();
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} catch (Throwable $e) {
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$this->model->rollback();
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return $this->error($e->getMessage());
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}
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if ($result !== false) {
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return $this->success(__('Added successfully'));
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}
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return $this->error(__('No rows were added'));
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}
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return $this->error(__('Parameter error'));
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}
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/**
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* 编辑（内部实现）
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*/
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protected function _edit(): Response
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{
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$pk = $this->model->getPk();
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$id = $this->request ? ($this->request->post($pk) ?? $this->request->get($pk)) : null;
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$row = $this->model->find($id);
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if (!$row) {
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return $this->error(__('Record not found'));
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}
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$dataLimitAdminIds = $this->getDataLimitAdminIds();
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if ($dataLimitAdminIds && !in_array($row[$this->dataLimitField], $dataLimitAdminIds)) {
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return $this->error(__('You have no permission'));
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}
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if ($this->request && $this->request->method() === 'POST') {
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$data = $this->request->post();
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if (!$data) {
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return $this->error(__('Parameter %s can not be empty', ['']));
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}
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$data = $this->excludeFields($data);
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$result = false;
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$this->model->startTrans();
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try {
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if ($this->modelValidate) {
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$validate = str_replace("\\model\\", "\\validate\\", get_class($this->model));
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if (class_exists($validate)) {
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$validate = new $validate();
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if ($this->modelSceneValidate) {
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$validate->scene('edit');
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}
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$data[$pk] = $row[$pk];
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$validate->check($data);
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}
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}
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$result = $row->save($data);
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$this->model->commit();
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} catch (Throwable $e) {
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$this->model->rollback();
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return $this->error($e->getMessage());
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}
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if ($result !== false) {
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return $this->success(__('Update successful'));
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}
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return $this->error(__('No rows updated'));
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}
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return $this->success('', [
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'row' => $row
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]);
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}
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/**
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* 删除（内部实现）
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*/
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protected function _del(): Response
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{
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$where = [];
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$dataLimitAdminIds = $this->getDataLimitAdminIds();
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if ($dataLimitAdminIds) {
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$where[] = [$this->dataLimitField, 'in', $dataLimitAdminIds];
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}
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$ids = $this->request ? ($this->request->post('ids') ?? $this->request->get('ids') ?? []) : [];
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$ids = is_array($ids) ? $ids : [];
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$where[] = [$this->model->getPk(), 'in', $ids];
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$data = $this->model->where($where)->select();
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$count = 0;
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$this->model->startTrans();
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try {
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foreach ($data as $v) {
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$count += $v->delete();
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}
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$this->model->commit();
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} catch (Throwable $e) {
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$this->model->rollback();
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return $this->error($e->getMessage());
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}
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if ($count) {
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return $this->success(__('Deleted successfully'));
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}
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return $this->error(__('No rows were deleted'));
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}
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/**
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* 排序 - 增量重排法（内部实现）
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*/
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protected function _sortable(): Response
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{
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$pk = $this->model->getPk();
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$move = $this->request ? $this->request->post('move') ?? $this->request->get('move') : null;
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$target = $this->request ? $this->request->post('target') ?? $this->request->get('target') : null;
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$order = $this->request ? ($this->request->post('order') ?? $this->request->get('order')) : null;
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$order = $order ?: $this->defaultSortField;
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$direction = $this->request ? ($this->request->post('direction') ?? $this->request->get('direction')) : null;
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$dataLimitWhere = [];
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$dataLimitAdminIds = $this->getDataLimitAdminIds();
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if ($dataLimitAdminIds) {
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$dataLimitWhere[] = [$this->dataLimitField, 'in', $dataLimitAdminIds];
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}
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$moveRow = $this->model->where($dataLimitWhere)->find($move);
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$targetRow = $this->model->where($dataLimitWhere)->find($target);
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if ($move == $target || !$moveRow || !$targetRow || !$direction) {
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return $this->error(__('Record not found'));
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}
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if ($order && is_string($order)) {
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$order = explode(',', $order);
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$order = [$order[0] => $order[1] ?? 'asc'];
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}
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if (!is_array($order) || !array_key_exists($this->weighField, $order)) {
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return $this->error(__('Please use the %s field to sort before operating', [$this->weighField]));
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}
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$order = $this->queryOrderBuilder();
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$weigh = $targetRow[$this->weighField];
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$updateMethod = $order[$this->weighField] == 'desc' ? ($direction == 'up' ? 'dec' : 'inc') : ($direction == 'up' ? 'inc' : 'dec');
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$weighRowIds = $this->model
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->where($dataLimitWhere)
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->where($this->weighField, $weigh)
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->order($order)
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->column($pk);
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$weighRowsCount = count($weighRowIds);
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$this->model->where($dataLimitWhere)
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->where($this->weighField, $updateMethod == 'dec' ? '<' : '>', $weigh)
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->whereNotIn($pk, [$moveRow->$pk])
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->$updateMethod($this->weighField, $weighRowsCount)
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->save();
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if ($direction == 'down') {
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$weighRowIds = array_reverse($weighRowIds);
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}
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$moveComplete = 0;
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$weighRowIdsStr = implode(',', $weighRowIds);
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$weighRows = $this->model->where($dataLimitWhere)
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->where($pk, 'in', $weighRowIdsStr)
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->orderRaw("field($pk,$weighRowIdsStr)")
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->select();
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foreach ($weighRows as $key => $weighRow) {
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if ($moveRow[$pk] == $weighRow[$pk]) {
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continue;
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}
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$rowWeighVal = $updateMethod == 'dec' ? $weighRow[$this->weighField] - $key : $weighRow[$this->weighField] + $key;
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if ($weighRow[$pk] == $targetRow[$pk]) {
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$moveComplete = 1;
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$moveRow[$this->weighField] = $rowWeighVal;
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$moveRow->save();
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}
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$rowWeighVal = $updateMethod == 'dec' ? $rowWeighVal - $moveComplete : $rowWeighVal + $moveComplete;
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$weighRow[$this->weighField] = $rowWeighVal;
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$weighRow->save();
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}
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return $this->success();
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}
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/**
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* 加载为 select(远程下拉选择框)数据
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*/
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public function select(): void
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{
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}
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}
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