我不知道如何使用jquery在表单上显示自定义消息。我正在使用Yii，我调用一个操作来更新我的数据库。我想做的是在表单中出现错误的情况下显示一些错误消息。
第一个动作是：
if($this->id == "survey") { // Esta condicición es por si se trata de mail, sms, qr o tpe (queda pendiente el callback) ?>
x$("input#surveysubmit").click(function() {
var data = serialize(document.getElementById("token-form"));
if(!checkRequiredBeforeSubmit(data)) return;
x$().xhr('<?php echo $this->createUrl('survey/index', array('id'=>$model->skey)); ?>', {
method: 'POST',
async: true,
data: urlstringserialize(serialize(document.getElementById("token-form"))),
callback: function() {respOK(this.responseText);}
});
});
正如你所看到的，这就是所谓的调查/索引。索引是一个控制器操作，它最终重定向到执行以下操作的令牌/填充：
public function actionFill($id, $agent = '') {
$model = $this->loadModel($id);
if(Yii::app()->request->isPostRequest) {
// Ñapa-parche para seleccionables
$index = 0;
foreach($_POST as $key=>$value) {
if(preg_match('/^'.$key.'/', $value)) {
$_POST[$value] = 1;
$BAD = array($key, $value);
$_POST = array_diff($_POST, $BAD);
$index++;
}
}
$requiredok = $this->controlRequiredValues($model, $model->transformSurveyRawData($_POST));
if ($requiredok == '') {
$isok = $model->createAnswersForToken($model->transformSurveyRawData($_POST));
if ($isok) {
$this->redirect(array('view', 'id' => $model->id));
}
}
}
}
controlRequiredValues是控制错误的函数：
public function controlRequiredValues($model, $answers) {
//Recupero Oleada
$wave = $model->wave;
//Recupero Campaña/Centro
$campaignCenter = $wave->campaignCenter;
//Recupero Campaña
$campaign = $campaignCenter->campaign;
//Recupero Template
$template = $campaign->template;
//Recupero Preguntas del template
$questions = $campaignCenter->campaign->template->questions;
//Primero miro si las answers que me vienen en la encuesta son required o no
foreach($answers['answers'] as $key=>$qvalue) {
//Si existe la pregunta para la respueta que me han enviado, es una pregunta requerida y su valor es nulo
$question = Question::model()->findByPk($key);
if (isset($question) && $question->required == 1 && $qvalue = ""){
$arr = array('error' => $question->id. " is required");
return json_encode($arr);
}
//Si no, hay que mirar si tiene condicional relacionado con otra pregunta
else{
$questioncondition = QuestionCondition::model()->find('question_id=:qid0 AND reqshow=:rs0', array('qid0'=>$question->id, 'rs0'=>'req'));
if (isset($questioncondition)){
if (array_key_exists($questioncondition->question_id_dep, $answers['answers'])) {
$cond = $qvalue. " " . $questioncondition->operator . " " . $questioncondition->rvalue;
if (!$cond){
$arr = array('error' => $question->id. " is required");
return json_encode($arr);
}
} else {
$arr = array('error' => $question->id. " is required");
echo json_encode($arr);
}
}
}
}
//Ahora miramos en las preguntas del template.
$questions = $template->questions;
foreach($questions as $question) {
//Si en el template dice que la pregunta es required
if (isset($question) && $question->required == 1) {
//Puede que no exista en el array de respuestas o si existe que esté en blanco, en cuyo caso mostraremos error.
if(array_key_exists($question->id, $answers['answers'])) {
$clave = array_search('', $answers['answers']);
if (isset($clave)){
$arr = array('error' => $question->id. " is required");
return json_encode($arr);
} else {
$questioncondition = QuestionCondition::model()->find('question_id=:qid0 AND reqshow=:rs0', array('qid0'=>$question->id, 'rs0'=>'req'));
if (isset($questioncondition)){
if (array_key_exists($questioncondition->question_id_dep, $answers['answers'])) {
$cond = $qvalue. " " . $questioncondition->operator . " " . $questioncondition->rvalue;
if (!$cond){
$arr = array('error' => $question->id. " is required");
return json_encode($arr);
}
} else {
$arr = array('error' => $question->id. " is required");
return json_encode($arr);
}
}
}
} else {
$arr = array('error' => $question->id. " is required");
return json_encode($arr);
}
} else {
$questioncondition = QuestionCondition::model()->find('question_id=:qid0 AND reqshow=:rs0', array('qid0'=>$question->id, 'rs0'=>'req'));
if (isset($questioncondition)){
if (array_key_exists($questioncondition->question_id_dep, $answers['answers'])) {
$cond = $qvalue. " " . $questioncondition->operator . " " . $questioncondition->rvalue;
if (!$cond){
$arr = array('error' => $question->id. " is required");
return json_encode($arr);
}
} else {
$arr = array('error' => $question->id. " is required");
return json_encode($arr);
}
}
}
}
}
我想做的是向最终用户显示这些错误。
您可以尝试对flash消息使用默认错误操作。
public function actionError() {
if ($error = Yii::app()->errorHandler->error) {
if (Yii::app()->request->isAjaxRequest)
Yii::app()->user->setFlash('error', $error['message']);
else {
$this->render('error', $error);
//or
Yii::app()->user->setFlash('error', $error['message']);
}
}
}
并且在组件阵列中的config/main.php中添加：
'errorHandler'=>array(
'errorAction'=>'site/error',
),
然后在你想要/需要的时候抛出一个新的基本/自定义异常
这里有更多关于这个的信息：错误处理和这里：闪存
编辑：
实现后，您可以在需要时抛出CException，而不仅仅是针对这个特定的请求
或者，您可以实现这一点，并保持controlRequiredValues（）不变，然后更改它：
if ($requiredok == '') {
$isok = $model->createAnswersForToken($model->transformSurveyRawData($_POST));
if ($isok) {
$this->redirect(array('view', 'id' => $model->id));
}
}
对此：
$isok = $model->createAnswersForToken($model->transformSurveyRawData($_POST));
if ($isok) {
$this->redirect(array('view', 'id' => $model->id, 'error' => $requiredok));
}
因此，删除if语句，检查$requiredok是否为空并将其传递给视图，然后在视图中检查它是否为空以及是否未引发CDbException。