Question

这是我的代码。

<?= $form->field($model, 'projectTitle')->dropDownList($fullprojectlist, [
'prompt'=>'-Choose a Course-',
'id' => 'projectList',
'type'=> 'POST',
'onchange'=>' var value = $("#projectList :selected").val();
        //$("#draftproposalform-supervisor").val(value);'


        $.post("'.Yii::$app->urlManager->createUrl(["/draftproposalform.php", "id" => value).'", function(data) {

        //set value for text box
        }
]);?>

<?= $form->field($model, 'supervisor')->textInput(['readonly'=> 'true']); ?>

我正在尝试将所选值传递给控制器，以便我可以查询数据库以查找相关信息。然后将该信息发送回视图以设置文本。

我知道如何从数据库中获取数据。我只是不知道如何将所选值传递给控制器，并在保持视图中的选定值的同时获取settext的值。

public function actionDraftproposalform() {
    $model = new DraftProposalForm();

    if($model->load(Yii::$app->request->post()) && $model->validate())
    {
        return $this->refresh();
    }

    else {

   $query = new Query;
   $query->select(['User.name', 'Project.title', 'Project.project_ID'])
        ->from('Project')
        ->innerJoin('Supervisor', '`Project`.`supervisor_ID` = `Supervisor`.`supervisor_ID`')
        ->innerJoin('User', '`Supervisor`.`user_ID` = `User`.`user_ID`')
        ->where(['Project.project_type_ID'=>1, 'Project.approval_ID'=>2]);

    $projectlist = $query->all();

    $fullprojectlist = ArrayHelper::map($projectlist, 'name', 'title', 'project_ID');


        return $this->render('draftproposalform', [
            'model'=>$model,
            'fullprojectlist' => $fullprojectlist]);
    }
}

抱歉，如果它很乱。说实话，我甚至不知道将数据传回这里是否是正确的选择。

已编辑的代码

查看

<?php
        $this->registerJs(' $("#projectList").change(function() {
        var value = $("#projectList option:selected").val();
        alert(value);
        $.post(
        "'.Yii::$app->urlManager->createUrl(["/draftproposalform.php"]).'", 
        {id:value}, 
        function(data) {

            alert("Test");
            $("input[name=\'supervisor\']").val(data);
        }); });');
    ?>

        <?= $form->field($model, 'projectTitle')->dropDownList($projectlist, [
        'prompt'=>'-Choose a Course-',
        'id' => 'projectList',
        'type'=> 'POST'
        ]);
    ?>

    <?= $form->field($model, 'supervisor')->textInput(['readonly'=> 'true']); ?>

控制器

public function actionDraftproposalform() {
    $model = new DraftProposalForm();

    if(Yii::$app->request->isPost)
    {
        $id = Yii::$app->request->post("id");

        $super = DbProject::findOne(["project_ID"=>$id]);

        $supervisor = DbSupervisor::findOne(["supervisor_ID"=>$super->supervisor_ID]);

        $user = DbUser::findOne(["user_ID"=>$supervisor->user_ID]);

        //$super = DbSupervisor::findOne(["supervisor_ID"=>$id]);

    echo $user->name;

    exit;
    }


    else {


        $projectlist = ArrayHelper::map(DbProject::find()->where(['project_type_ID' => 1, 'approval_ID' => 2])->asArray()->all(), 'project_ID', 'title');

        return $this->render('draftproposalform', [
            'model'=>$model,
            'projectlist' => $projectlist]);
    }
}

Answer 1

你能测试一下吗？的 //控制器

<? public function actionDraftproposalform() { $model = new DraftProposalForm(); if(Yii::$app->request->isPost) { $id=Yii::$app->request->post("id"); $super=Supervisor::findOne(["supervisor_ID"=>$id]); if($super) echo $super->name;else echo "Not found";exit; } else { $query = new Query; $query->select(['User.name', 'Project.title', 'Project.project_ID']) ->from('Project') ->innerJoin('Supervisor', '`Project`.`supervisor_ID` = `Supervisor`.`supervisor_ID`') ->innerJoin('User', '`Supervisor`.`user_ID` = `User`.`user_ID`') ->where(['Project.project_type_ID'=>1, 'Project.approval_ID'=>2]); $projectlist = $query->all(); $fullprojectlist = ArrayHelper::map($projectlist, 'name', 'title', 'project_ID'); return $this->render('draftproposalform', [ 'model'=>$model, 'fullprojectlist' => $fullprojectlist]); } }

//查看注册js：将其放在您的视图中

<? $this->registerJs(' $("#projectList").change(function(){ var value = $("#projectList option:selected").val(); $.post( "'.Yii::$app->urlManager->createUrl(["/draftproposalform"]).'", { id:value }, function(data) { $( "#draftproposalform-supervisor").val(data); }); });'); ?>

Yii2发布到控制器并获取数据

1 个答案: