我使用 Laravel 通过多查询将 Mysql 中的数据显示到 View。
这是我的路线:
Route::get('/procinstdetail','ProcDetailController@index');
这是我的 Controller :
use App\act_hi_taskinst;
use View;
class ProcDetailController extends Controller
{
private $act_hi_taskinst;
public function __construct(act_hi_taskinst $act_hi_taskinst) {
$this -> act_hi_taskinst = $act_hi_taskinst;
}
public function index(act_hi_taskinst $act_hi_taskinst, Request $request)
{
$procinstid = $request->get('id');
return View::make('datatrackingdetail')->with('data', $this->act_hi_taskinst->getData($procinstid));
}
}
还有我的模型:
class act_hi_taskinst extends Model
{
public function getData($procinstid) {
$data = array();
$data['taskData'] = DB::select("SELECT NAME_, PRIORITY_, ASSIGNEE_, DUE_DATE_, START_TIME_, END_TIME_, PROC_DEF_ID_ FROM act_hi_taskinst WHERE PROC_INST_ID_ = $procinstid");
$data['varData'] = DB::select("SELECT NAME_, TEXT_ FROM act_hi_varinst WHERE PROC_INST_ID_ = $procinstid");
$data['subprocessData'] = DB::select("SELECT * FROM act_hi_procinst WHERE SUPER_PROCESS_INSTANCE_ID_ = $procinstid");
return $data;
}
}
最后是取数据查看:
<body>
<h2>Task</h2>
<table border="1" cellspacing = "0" cellpadding = "3">
<tr>
<th>Name</th>
<th>Priority</th>
<th>Assignee</th>
<th>Due Date</th>
<th>Created</th>
<th>Completed</th>
</tr>
@if(isset($data))
@foreach($data as $processTaskDataValue)
<tr>
<td>{{ $processTaskDataValue -> NAME_ }}</td>
<td>{{ $processTaskDataValue -> PRIORITY_ }}</td>
<td>{{ $processTaskDataValue -> ASSIGNEE_ }}</td>
<td>{{ $processTaskDataValue -> DUE_DATE_ }}</td>
<td>{{ $processTaskDataValue -> START_TIME_ }}</td>
<td>{{ $processTaskDataValue -> END_TIME_ }}</td>
</tr>
@endforeach
@endif
</table>
<h2>Variable</h2>
<table border="1" cellspacing = "0" cellpadding = "3">
<tr>
<th>Name</th>
<th>Value</th>
</tr>
@if(isset($data))
@foreach($data as $processVarDataValue)
<tr>
<td>{{ $processVarDataValue -> NAME_ }}</td>
<td>{{ $processVarDataValue -> TEXT_ }}</td>
</tr>
@endforeach
@endif
</table>
<h2>Sub Process</h2>
<table border="1" cellspacing = "0" cellpadding = "3">
<tr>
<th>ID_</th>
<th>PROC_INST_ID_</th>
<th>BUSINESS_KEY_</th>
<th>PROC_DEF_ID_</th>
<th>START_TIME_</th>
<th>END_TIME_</th>
<th>DURATION_</th>
<th>START_USER_ID_</th>
<th>START_ACT_ID_</th>
<th>END_ACT_ID_</th>
<th>SUPER_PROCESS_INSTANCE_ID_</th>
<th>DELETE_REASON_</th>
<th>TENANT_ID_</th>
<th>NAME_</th>
</tr>
@if(isset($data))
@foreach($data as $subprocessDataValue)
<tr>
<td><a href= "{{ url('/procinstdetail') }}?id={{ $subprocessDataValue -> ID_ }}&endtime={{ $subprocessDataValue -> END_TIME_ }}"> {{$subprocessDataValue -> ID_ }}</a></td>
<td>{{ $subprocessDataValue -> PROC_INST_ID_ }}</td>
<td>{{ $subprocessDataValue -> BUSINESS_KEY_ }}</td>
<td>{{ $subprocessDataValue -> PROC_DEF_ID_ }}</td>
<td>{{ $subprocessDataValue -> START_TIME_ }}</td>
<td>{{ $subprocessDataValue -> END_TIME_ }}</td>
<td>{{ $subprocessDataValue -> DURATION_ }}</td>
<td>{{ $subprocessDataValue -> START_USER_ID_ }}</td>
<td>{{ $subprocessDataValue -> START_ACT_ID_ }}</td>
<td>{{ $subprocessDataValue -> END_ACT_ID_ }}</td>
<td>{{ $subprocessDataValue -> SUPER_PROCESS_INSTANCE_ID_ }}</td>
<td>{{ $subprocessDataValue -> DELETE_REASON_ }}</td>
<td>{{ $subprocessDataValue -> TENANT_ID_ }}</td>
<td>{{ $subprocessDataValue -> NAME_ }}</td>
</tr>
@endforeach
@endif
</table>
</body>
但是我收到错误:
Trying to get property 'NAME_' of non-object.
我的代码有什么问题？ 我是 Laravel 的新手，所以我真的不知道如何修复它。
最佳答案
在您的模型中，您正在创建包含键 taskData、varData 和 subprocessData 的数组，而您在获取数据时忘记将此键用于 $data 数组
<body>
<h2>Task</h2>
<table border="1" cellspacing = "0" cellpadding = "3">
<tr>
<th>Name</th>
<th>Priority</th>
<th>Assignee</th>
<th>Due Date</th>
<th>Created</th>
<th>Completed</th>
</tr>
@if(isset($data))
@foreach($data['taskData'] as $processTaskDataValue)
<tr>
<td>{{ $processTaskDataValue->NAME_ }}</td>
<td>{{ $processTaskDataValue->PRIORITY_ }}</td>
<td>{{ $processTaskDataValue->ASSIGNEE_ }}</td>
<td>{{ $processTaskDataValue->DUE_DATE_ }}</td>
<td>{{ $processTaskDataValue->START_TIME_ }}</td>
<td>{{ $processTaskDataValue->END_TIME_ }}</td>
</tr>
@endforeach
@endif
</table>
<h2>Variable</h2>
<table border="1" cellspacing = "0" cellpadding = "3">
<tr>
<th>Name</th>
<th>Value</th>
</tr>
@if(isset($data))
@foreach($data['varData'] as $processVarDataValue)
<tr>
<td>{{ $processVarDataValue->NAME_ }}</td>
<td>{{ $processVarDataValue->TEXT_ }}</td>
</tr>
@endforeach
@endif
</table>
<h2>Sub Process</h2>
<table border="1" cellspacing = "0" cellpadding = "3">
<tr>
<th>ID_</th>
<th>PROC_INST_ID_</th>
<th>BUSINESS_KEY_</th>
<th>PROC_DEF_ID_</th>
<th>START_TIME_</th>
<th>END_TIME_</th>
<th>DURATION_</th>
<th>START_USER_ID_</th>
<th>START_ACT_ID_</th>
<th>END_ACT_ID_</th>
<th>SUPER_PROCESS_INSTANCE_ID_</th>
<th>DELETE_REASON_</th>
<th>TENANT_ID_</th>
<th>NAME_</th>
</tr>
@if(isset($data))
@foreach($data['subprocessData'] as $subprocessDataValue)
<tr>
<td><a href= "{{ url('/procinstdetail') }}?id={{
$subprocessDataValue -> ID_ }}&endtime={{ $subprocessDataValue ->
END_TIME_ }}"> {{$subprocessDataValue -> ID_ }}</a></td>
<td>{{ $subprocessDataValue->PROC_INST_ID_ }}</td>
<td>{{ $subprocessDataValue->BUSINESS_KEY_ }}</td>
<td>{{ $subprocessDataValue->PROC_DEF_ID_ }}</td>
<td>{{ $subprocessDataValue->START_TIME_ }}</td>
<td>{{ $subprocessDataValue->END_TIME_ }}</td>
<td>{{ $subprocessDataValue->DURATION_ }}</td>
<td>{{ $subprocessDataValue->START_USER_ID_ }}</td>
<td>{{ $subprocessDataValue->START_ACT_ID_ }}</td>
<td>{{ $subprocessDataValue->END_ACT_ID_ }}</td>
<td>{{ $subprocessDataValue->SUPER_PROCESS_INSTANCE_ID_ }}</td>
<td>{{ $subprocessDataValue->DELETE_REASON_ }}</td>
<td>{{ $subprocessDataValue->TENANT_ID_ }}</td>
<td>{{ $subprocessDataValue->NAME_ }}</td>
</tr>
@endforeach
@endif
</table>
</body>
关于php - 将 mySQL 中的数据显示到 Laravel 中的 View 时出错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/55155273/