本文介绍了Yii:如何在所需页面上按降序显示数据的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我是一个 yiibie,我正在从 ngo 表中检索图像和非政府组织名称,并能够在所需的页面上显示它们,我想按降序显示 Ngo,我的意思是当新的非政府组织注册时应该显示它作为所需页面上的第一个图像.为此,这是 Ngo 控制器

I am a yiibie, I am retrieving image and ngo name from the ngo table and able to show them on the desired page, i want to show Ngo's in desc order, I mean that when a new ngo registers it should be displayed as the 1st image on the desired page.For that this is Ngo controller

<?php

class NgoController extends RController
{
    /**
    * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
    * using two-column layout. See 'protected/views/layouts/column2.php'.
    */
    public $layout='//layouts/admin';

    /**
    * @return array action filters
    */
    public function filters()
    {
        return array(
//          'accessControl', // perform access control for CRUD operations
//          'postOnly + delete', // we only allow deletion via POST request

                    'rights',
                );
    }

    /**
    * Specifies the access control rules.
    * This method is used by the 'accessControl' filter.
    * @return array access control rules
    */
    public function accessRules()
    {
        return array(
            array('allow',  // allow all users to perform 'index' and 'view' actions
                'actions'=>array('index','view'),
                'users'=>array('*'),
            ),
            array('allow', // allow authenticated user to perform 'create' and 'update' actions
                'actions'=>array('create','update'),
                'users'=>array('@'),
            ),
            array('allow', // allow admin user to perform 'admin' and 'delete' actions
                'actions'=>array('admin','delete'),
                'users'=>array('admin'),
            ),
            array('deny',  // deny all users
                'users'=>array('*'),
            ),
        );
    }

    /**
    * Displays a particular model.
    * @param integer $id the ID of the model to be displayed
    */
    public function actionView($id)
    {
        $this->render('view',array(
            'model'=>$this->loadModel($id),
        ));
    }
        public function actionNgopage($id)
    {
               $this->layout='main';
        $this->render('ngopage',array(
            'model'=>$this->loadModel($id),
        ));
    }
        public function actionAllngo()
        {
            $allmodels= Ngo::model()->findAll();

            $this->layout='main';
            $this->render('allngo',array('allmodels'=>$allmodels));
        }


    /**
    * Creates a new model.
    * If creation is successful, the browser will be redirected to the 'view' page.
    */
    public function actionCreate()
    {
        $model=new Ngo;

        // Uncomment the following line if AJAX validation is needed
        // $this->performAjaxValidation($model);

        if(isset($_POST['Ngo']))
        {
            $model->attributes=$_POST['Ngo'];
            if($model->save())
                $this->redirect(array('view','id'=>$model->id));
        }

        $this->render('create',array(
        'model'=>$model,
        ));
    }

    /**
    * Updates a particular model.
    * If update is successful, the browser will be redirected to the 'view' page.
    * @param integer $id the ID of the model to be updated
    */
    public function actionUpdate($id)
    {
        $model=$this->loadModel($id);

        // Uncomment the following line if AJAX validation is needed
        // $this->performAjaxValidation($model);

        if(isset($_POST['Ngo']))
        {
            $model->attributes=$_POST['Ngo'];
            if($model->save())
                $this->redirect(array('view','id'=>$model->id));
        }

        $this->render('update',array(
            'model'=>$model,
        ));
    }

    /**
    * Deletes a particular model.
    * If deletion is successful, the browser will be redirected to the 'admin' page.
    * @param integer $id the ID of the model to be deleted
    */
    public function actionDelete($id)
    {
        if(Yii::app()->request->isPostRequest)
        {
            // we only allow deletion via POST request
            $this->loadModel($id)->delete();

            // if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
            if(!isset($_GET['ajax']))
                $this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
        }
        else
            throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
    }

    /**
    * Lists all models.
    */
    public function actionIndex()
    {
        $dataProvider=new CActiveDataProvider('Ngo');
        $this->render('index',array(
            'dataProvider'=>$dataProvider,
        ));
    }

    /**
    * Manages all models.
    */
    public function actionAdmin()
    {
        $model=new Ngo('search');
        $model->unsetAttributes();  // clear any default values
        if(isset($_GET['Ngo']))
            $model->attributes=$_GET['Ngo'];

        $this->render('admin',array(
            'model'=>$model,
        ));
    }

    /**
    * Returns the data model based on the primary key given in the GET variable.
    * If the data model is not found, an HTTP exception will be raised.
    * @param integer $id the ID of the model to be loaded
    * @return Ngo the loaded model
    * @throws CHttpException
    */
    public function loadModel($id)
    {
        $model=Ngo::model()->findByPk($id);
        if($model===null)
            throw new CHttpException(404,'The requested page does not exist.');
        return $model;
    }

    /**
    * Performs the AJAX validation.
    * @param Ngo $model the model to be validated
    */
    protected function performAjaxValidation($model)
    {
        if(isset($_POST['ajax']) && $_POST['ajax']==='ngo-form')
        {
            echo CActiveForm::validate($model);
            Yii::app()->end();
        }
    }
}

这是视图文件request->baseurl;?>/img/ngo-banner.jpg" class="img-responsive">

And this is the view file request->baseurl;?>/img/ngo-banner.jpg" class="img-responsive">

                                          <?php
        $cnt= -100;
        $nThumbXRow = 4;
        foreach($allmodels as $model) {
            if ($cnt%$nThumbXRow == 0);

                echo "<div class='col-md-3'><div class='thumbnail'>
                        <img src='" . Yii::app()->request->baseurl. "/img/" . $model->image. "'>" .
                      "<div class='caption'>
                        <h3 style='text-align: center'>" . $model->ngo_name ."</h3>
                        <a href='ngo-profile.php'>  <button class='btn btn-primary center-block'>View Profile</button></a>
                        </div></div></div>";


            if ($cnt%$nThumbXRow == 0){
                echo "</div><!-- row ending here -->";
            }
            $cnt++;
        }
    ?>




                                     </div><!--ngo-content ending here-->

推荐答案

试试这个方法

public function actionAllngo()
{
    $allmodels= Ngo::model()->findAll(array('order'=>'id DESC'));
    $this->layout='main';
    $this->render('allngo',array('allmodels'=>$allmodels));
}

这篇关于Yii:如何在所需页面上按降序显示数据的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

09-11 10:57