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dafuweng-buildadmin/dafuweng-webman/app/admin/library/traits/Backend.php
2026-03-07 19:42:22 +08:00

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