我正在尝试使用laravel框架制作一个基本的简单CRUD模型,我设法在没有选择表单的情况下制作一个简单的CRUD格式,但是当我使用选择表单时,它会收到错误消息
完全错误
SQLSTATE[23000]: 完整性约束冲突: 1452 无法添加或更新子行: 外键约束失败 (
activity_report_2015-04-22
.tn_project
, 约束fk_client_id
外键 (cv_client_id
) 引用tn_client
(cn_id
)) (SQL: 插入tn_project
(cv_created_by
,cn_created_at
,cv_id
,cv_name
,cv_client_id
,cn_invoice_method
,cn_project_rate
,cn_note
) 值 (ADA, 2016-02-18 23:52:45, TestProject, TestName, $client->cn_id, $invoice->cn_id, 1.2, JustTest))
cv_client_id和cv_invoice_method的值来自不同的表,这是tn_client和tn_invoice_method,我注意到为什么cv_client_id的值和cv_invoice_method结果查询比值,知道吗?
如果你们需要更多信息,请告诉我
视图
<div class="form-group">
<label class="col-md-3 control-label">Client</label>
<div class="col-md-9">
<select name="clientId" id="clientId" class="form-control" placeholder="Select Client">
@foreach ($clients as $client)
<option value='$client->cn_id'>{{$client->cv_name}}</option>;
@endforeach
</select>
</div>
</div>
<div class="form-group">
<label class="col-md-3 control-label">Invoice Method</label>
<div class="col-md-9">
<select type="hidden" name="invoiceId" id="invoiceId" class="form-control">
@foreach ($invoices as $invoice)
<option value='$invoice->cn_id'>{{$invoice->cv_method}}</option>;
@endforeach
</select>
</div>
</div>
控制器
public function createOrEdit(){
$currentUsername = Auth::user()->name;
$isUpdate = false;
$projectId = Input::get('prevId');
//populate data
$project = new Project;
if($projectId != ""){
$project = Project::where('cv_id','=',$projectId)->firstOrFail();
$project->cv_updated_by = $currentUsername;
$project->cn_updated_at = Carbon::now();
$isUpdate = true;
} else{
$project->cv_created_by = $currentUsername;
$project->cn_created_at = Carbon::now();
}
$project->cv_id = Input::get('projectId');
$project->cv_name = Input::get('projectName');
$project->cv_client_id = Input::get('clientId');
$project->cn_invoice_method = Input::get('invoiceId');
$project->cn_project_rate = Input::get('projectRate');
$project->cn_note = Input::get('note');
//execute
if($isUpdate){
Log::info("entering update mode");
Project::where('cv_id','=',$projectId)->update(['cv_id'=>$project->cv_id,
'cv_name'=>$project->cv_name,
'cv_client_id'=>$project->cv_client_id,
'cn_invoice_method'=>$project->cn_invoice_method,
'cn_project_rate'=>$project->cn_project_rate,
'cn_note'=>$project->cn_note,
'cn_updated_at'=>$project->cn_updated_at,
'cv_updated_by'=>$project->cv_updated_by]);
}else{
$project->save();
}
return Response::json(
array(
'content' => Project::with('client','invoice')->get(),
'status' => 'success',
)
);
}
注意:如果我在我的控制器中输入 cv_client_id 的值并手动cv_invoice_method,它工作正常
你忘了回声$client->cn_id <option value='{{$client->cn_id}}'>{{$client->cv_name}}</option>;
这里也一样: <option value='{{$invoice->cn_id}}'>{{$invoice->cv_method}}</option>;