PHP教程：PHP的Yii框架使用中的一些错误解决方法与建议

PHP应用
//注册 js 文件 
Yii::app()->clientScript->registerScriptFile(Yii::app()->baseUrl.'/js/project1.js',CClientScript::POS_HEAD); 
//注册 css 文件 
Yii::app()->clientScript->registerCssFile(Yii::app()->baseUrl.'/css/project1.css'); 
//注册 Jquery 文件 
Yii::app()->clientScript->registerCoreScript('jquery'); 

PHP应用
if(!$model->isNewRecord) 
{ 
  $db_exist = Post::model()->findByPk($model->id); 
  if($db_exist == NULL) 
    $model->isNewRecord = true; 
} 

PHP应用
<?php echo $form->hiddenField($model,'name'); ?> 
<?php if($model->isNewRecord) echo $form->hiddenField($model,'path',array('size'=>60,'maxlength'=>128,'id'=>'path1')); ?> 

PHP应用
echo $form->dropDownList($model,'is_marry',array('0'=>'否','1'=>'是')); 

PHP应用
/* 写在 model 里 */ 
public function getUserOptions() 
{ 
  $models = User::model()->findAll(); 
  $models = User::model()->findAllByAttributes(array('is_regeister'=>'1')); 
  return CHtml::listdata($models, 'id', 'name'); 
} 
 
/* 写在 view 的界面里 */ 
echo $form->dropDownList($model,'user_id',User::model()->getUserOptions()); 

PHP应用
/*开启事务机制*/ 
$transaction = Yii::app()->db->beginTransaction(); 
try 
{ 
  /* 成功则 commit */ 
  $transaction->commit(); 
} 
catch(Exception $e) 
{ 
  $transaction->rollBack(); 
} 

PHP应用
if($_POST['ModelA']) 
{ 
  /*开启事务机制*/ 
  $transaction = Yii::app()->db->beginTransaction(); 
  try 
  { 
    /*此处省略一堆逻辑*/ 
    $modelA->save(); 
    $modelB->save(); 
 
    /* 成功则 commit */ 
    $transaction->commit(); 
    $this->redirect(array('view','id'=>$model->id)); 
  } 
  catch(Exception $e) 
  { 
    $transaction->rollBack(); 
  } 
} 

PHP应用
if($_POST['ModelA']) 
{ 
  /*开启事务机制*/ 
  $transaction = Yii::app()->db->beginTransaction(); 
  try 
  { 
    $validated = true; 
 
    /*此处省略一堆逻辑*/ 
    $valid = $modelA->save(); 
    $validated = $valid & $validated; 
 
    /*此处继续省略一堆逻辑*/ 
    $valid = $modelB->save(); 
    $validated = $valid & $validated; 
 
    /* 成功则 commit */ 
    if($validated) 
    { 
      $transaction->commit(); 
      $this->redirect(array('view','id'=>$model->id)); 
    } 
    else 
    { 
      /*不成功即回滚 */ 
      $transaction->rollBack(); 
    } 
  } 
  catch(Exception $e) 
  { 
    $transaction->rollBack(); 
  } 
} 

PHP应用
$criteria=new CDbCriteria; 
 
$criteria->alias = "post"; 
 
$criteria->with = array('user'); 
 
$criteria->compare('post.id',$Post->id,true); 
 
$model = Post::model()->find($criteria); 

PHP应用
<form action="your url" method='post' enctype="multipart/form-data" id='fileform'> 
  <p style='display:inline-block'>文件上传  </p><input id='file1' name='file1' type='file' ></input> 
  <br /> 
  <input type='submit' value='上传'> 
</form> 

PHP应用
if(isset($_FILES['file1'])) 
{ 
  $xlsfile = $_FILES['file1']; 
  $tmp_name = $xlsfile['tmp_name']; 
  /*获取文件名*/ 
  $file_name = basename($xlsfile_name); 
 
  if($xlsfile['error'] > 0) 
  { 
    echo "文件上传出错!请重试.<br />"; 
    exit; 
  } 
  else 
  { 
    if(file_exists("attached/tmp/".$file_name)) 
      echo "文件已存在!本次不予保留!"; 
    else 
    { 
      if(!is_dir("attached/tmp/")) 
      { 
        /*新建文件夹,默认权限 777, true 意味着可以递归从创建*/ 
        if(!mkdir("attached/tmp/",0777,true)) 
        { 
          echo "找不到 attached/tmp 文件夹,且创建失败!<br />"; 
          exit; 
        } 
      } 
 
      /*这个函数仅用于上传文件的移动*/ 
      move_uploaded_file($tmp_name,"attached/tmp/".$file_name); 
    } 
  } 
} 

PHP应用
/*创建文件夹*/ 
$date = date('Y-m-d',time()); 
$date = str_replace('-',"",$date); 
$dir = "attached/file/".$date.'/'; 
if(!is_dir($dir)) 
{ 
  if(!mkdir($dir,0777,true)) 
  { 
    exit('无法创建文件夹!'); 
  } 
} 
 
/*移动文件*/ 
$file_name = basename($old_file); 
$finish = rename($old_file,$dir.$file_name); 
if(!$finish) 
{ 
  exit('无法移动文件!'); 
} 

PHP应用
var_dump($model->scenario); 

PHP应用
$arr = $model->getSafeAttributeNames($model->scenario); 
var_dump($arr); 

PHP应用
if(isset($_GET['Po'])) 
  $model->setAttributes($_GET['Post'],false); 

PHP应用
function checkDatetime($dateStr, $format = "Y-m-d H:i:s") 
{ 
  $time = strtotime($dateStr); 
  $checkDate = date($format, $time); 
 
  return $checkDate == $dateStr; 
} 

PHP利用
//在 controller 里面 
 
$model=new Person; 
/* $addrs 存储 Addr model 的数组,放几个你就看着办吧*/ 
$addrs = array(); 
 
if(isset($_POST['Person'])) 
{ 
  $model->attributes = $_POST['Person']; 
  /*此处省略一堆逻辑*/ 
  foreach($_POST['Addr'] as $one_addr) 
  { 
    $addr = new Addr(); 
    $addr->attributes = $one_addr; 
    /*此处省略另一堆逻辑*/ 
  } 
} 
 
$this->render('create',array( 
  'model'=>$model, 
  'addrs' => $addrs, 
)); 
 
 
//在 view 里面 
 
/*可以循环输出你的多个 model */ 
$num = count($addrs); 
for($i = 0;$i < $num;++$i) 
{ 
  echo $form->labelEx($addrs[$i],"[{$i}]postcode"); 
  echo $form->textField($addrs[$i],"[{$i}]postcode",array('size'=>10,'maxlength'=>10)); 
  ...; 
} 
 
/*也可以通过数字指定输出某个 model */ 
echo $form->labelEx($addrs[0],"[0]postcode"); 
echo $form->textField($addrs[0],"[0]postcode",array('size'=>10,'maxlength'=>10));