Yii2 表单

参考
http://www.yiiframework.com/doc-2.0/guide-input-forms.html

结构

 <?php
 namespace app\models\test;

 use yii\db\ActiveRecord;

 class Dynasty extends ActiveRecord //或者 \yii\base\Model
 {
     public $username;
     public $password;
 }


 <?php
 namespace app\controllers;

 use yii\web\Controller;
 use app\models\test\Dynasty;

 class TestController extends Controller
 {
     public function actionIndex()
     {
         return $this->render('index', [
             'model' => new Dynasty(),
         ]);
     }
 }


 <?php
 use yii\helpers\Html;
 use yii\widgets\ActiveForm;
 ?>
 <?php $form = ActiveForm::begin(['id' => 'login-form','options' => ['class' => 'class_name'],'action'=>'test/index','method'=>'get',]); ?>

     <?= $form->field($model, 'username') ?>

     <?= $form->field($model, 'password')->passwordInput() ?>

     <div class="form-group">
         <?= Html::submitButton('Login') ?>
     </div>

 <?php ActiveForm::end(); ?>

规则

 密码
 <?= $form->field($model, 'password')->passwordInput() ?>
 标签与提示
 <?= $form->field($model, 'username')->textInput()->hint('请输入你的用户名')->label('用户名') ?>
 <?= $form->field($model, 'username[]',['inputOptions'=>['value'=>'abc','class'=>'form-control']]) ?>//默认值
 邮箱
 <?= $form->field($model, 'username')->input('email') ?>
 上传
 <?= $form->field($model, 'username')->fileInput(['multiple'=>'multiple']) ?>
 多选列表
 <?= $form->field($model, 'username[]')->checkboxList(['a' => '多选a', 'b' => '多选b', 'c' => '多选c']) ?>
 单个选择框
 <?= $form->field($model, 'username')->checkbox([],false)->label('已审核') ?> ?>
 下拉列表
 <?= $form->field($model, 'username[]')->dropDownList(['a' => '多选a', 'b' => '多选b', 'c' => '多选c']) ?>
 <?= $form->field($model, 'username[]')->dropDownList(['a' => '多选a', 'b' => '多选b', 'c' => '多选c'], ['prompt' => '多选b']) ?>
 隐藏框
 <?= $form->field($model, 'username')->hiddenInput(['1']) ?>
 ListBox
 <?= $form->field($model, 'username[]')->listBox(['a' => '多选a', 'b' => '多选b', 'c' => '多选c']) ?>
 单选列表
 <?= $form->field($model, 'username[]')->radioList(['a' => '单选a', 'b' => '单选b', 'c' => '单选c']) ?>
 多行文本
 <?= $form->field($model, 'username')->textarea() ?>
 widget扩展
 <?= $form->field($model, 'username')->widget(\yii\widgets\MaskedInput::className(), ['mask' => '9999/99/99',]); ?>

验证

 <?php
 namespace app\models\test;

 use yii\db\ActiveRecord;

 class Dynasty extends ActiveRecord
 {
     public $username;
     public $password;
     public $date;
     public function rules()
     {
         return [
             ['username', 'required', 'message' => '用户名不能为空.'],
             ['username', 'length', 'min'=>3, 'max'=>12],
             ['date','default','value'=>date('Y-m-d H:i:s')],
                         ['verifyCode', 'captcha'],//验证码
         ];
     }
 }

 为空检测
 [['username', 'password'], 'required', 'message'=>'不能为空'],
 邮箱检测
 ['username', 'email'],

 <?= $form->field($model, 'body')->textArea(['rows' => 6]) ?>
 <?= $form->field($model, 'verifyCode')->widget(Captcha::className(), [
     'template' => '<div class="row"><div class="col-lg-3">{image}</div><div class="col-lg-6">{input}</div></div>',
 ]) ?>
 <div class="form-group">
     <?= Html::submitButton('Submit', ['class' => 'btn btn-primary', 'name' => 'contact-button']) ?>
 </div>

接收数据

 public function actionIndex()
 {
     $model = new Dynasty();
     if ($model->load(Yii::$app->request->post()) && $model->validate()) {
         echo $model->username;
         return $this->render('index', ['model' => $model]);
     }else{

     }

 }

上传

CONTROLLER

 <?php
 namespace app\controllers;

 use yii;
 use yii\web\Controller;
 use app\models\test\Dynasty;
 use yii\web\UploadedFile;

 class TestController extends Controller
 {
     public function actionIndex()
     {
        if (Yii::$app->request->isPost) {
             $model = new Dynasty();
             $model->file = UploadedFile::getInstance($model, 'file');
             if ($model->file && $model->validate()) {
                 $model->file->saveAs('uploads/' . $model->file->baseName . '.' . $model->file->extension); //uploads 相对网站根目录
             }
         return $this->render('index', ['model' => $model]);
         }

MODEL

 <?php
 namespace app\models\test;

 //use yii\base\Model;
 use yii\db\ActiveRecord;
 use yii\web\UploadedFile;

 class Dynasty extends ActiveRecord//Model
 {
     public $username;
     public $password;
     public $file;
     public function rules()
     {
         return [
             ['file', 'file', 'extensions' => 'gif, jpg, png'],
         ];
     }
 }

VIEW

 <?php $form = ActiveForm::begin(['id' => 'login-form','options' =>  ['enctype' => 'multipart/form-data']]); ?>

     <?= $form->field($model, 'username') ?>

     <?= $form->field($model, 'file')->fileInput() ?>

     <?= $form->field($model, 'password')->passwordInput() ?>


     <div class="form-group">
         <?= Html::submitButton('Login') ?>
     </div>

 <?php ActiveForm::end(); ?>