文章管理之增删改查带分页（非常适合新手） [ 2.0 版本 ]

D:\phpStudy\WWW\ten\advanced\backend\controllers\ArticleController.php

<?php

namespace backend\controllers;

use Yii;
use backend\models\article;
use backend\models\ArticleSearch;
use yii\web\Controller;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
use yii\data\Pagination;

/**
 * ArticleController implements the CRUD actions for article model.
 */
class ArticleController extends Controller
{
    /**
     * @inheritdoc
     */
    public $layout = false;
    public function behaviors()
    {
        return [
            'verbs' => [
                'class' => VerbFilter::className(),
                'actions' => [
                    'delete' => ['POST'],
                ],
            ],
        ];
    }

    /**
     * Lists all article models.
     * @return mixed
     */
    public function actionIndex()
    {
        $searchModel = new ArticleSearch();
        $dataProvider = $searchModel->search(Yii::$app->request->queryParams);
        $data = Article::find();
        $pages = new Pagination(['totalCount' =>$data->count(), 'pageSize' => '1']);
        $model = $data->offset($pages->offset)->limit($pages->limit)->all();
        return $this->render('index', [
            'searchModel' => $searchModel,
            'dataProvider' => $dataProvider,
            'model'=>$model,
            'pages' => $pages,
        ]);
    }

    /**
     * Displays a single article model.
     * @param string $id
     * @return mixed
     */
    public function actionView($id)
    {
        return $this->render('view', [
            'model' => $this->findModel($id),
        ]);
    }

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

        if ($model->load(Yii::$app->request->post()) && $model->save()) {
            return $this->redirect(['view', 'id' => $model->id]);
        } else {
            return $this->render('create', [
                'model' => $model,
            ]);
        }
    }

    /**
     * Updates an existing article model.
     * If update is successful, the browser will be redirected to the 'view' page.
     * @param string $id
     * @return mixed
     */
    public function actionUpdate($id)
    {
        $model = $this->findModel($id);

        if ($model->load(Yii::$app->request->post()) && $model->save()) {
            return $this->redirect(['view', 'id' => $model->id]);
        } else {
            return $this->render('update', [
                'model' => $model,
            ]);
        }
    }

    /**
     * Deletes an existing article model.
     * If deletion is successful, the browser will be redirected to the 'index' page.
     * @param string $id
     * @return mixed
     */
    public function actionDelete($id)
    {
        $this->findModel($id)->delete();

        return $this->redirect(['index']);
    }

    /**
     * Finds the article model based on its primary key value.
     * If the model is not found, a 404 HTTP exception will be thrown.
     * @param string $id
     * @return article the loaded model
     * @throws NotFoundHttpException if the model cannot be found
     */
    protected function findModel($id)
    {
        if (($model = article::findOne($id)) !== null) {
            return $model;
        } else {
            throw new NotFoundHttpException('请求页面不存在');
        }
    }
}

D:\phpStudy\WWW\ten\advanced\backend\models\Article.php

<?php

namespace backend\models;

use Yii;

/**
 * This is the model class for table "article".
 *
 * @property string $id
 * @property string $title
 * @property string $author
 * @property integer $datetime
 * @property string $content
 */
class Article extends \yii\db\ActiveRecord
{
    /**
     * @inheritdoc
     */
    public static function tableName()
    {
        return 'article';
    }

    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['datetime'], 'integer'],
            [['content'], 'string'],
            [['title'], 'string', 'max' => 45],
            [['author'], 'string', 'max' => 20],
        ];
    }

    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        return [
            'id' => 'ID',
            'title' => '标题',
            'author' => '作者',
            'datetime' => '时间',
            'content' => '内容',
        ];
    }
}

V层需要注意有6个文件

D:\phpStudy\WWW\ten\advanced\backend\views\article_form.php

<?php

use yii\helpers\Html;
use yii\widgets\ActiveForm;

/* @var $this yii\web\View */
/* @var $model backend\models\article */
/* @var $form yii\widgets\ActiveForm */
?>
<!doctype html>
<html lang="en">
<link rel="stylesheet" href="./bootstrap/bootstrap.css">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>添加页面</title>
</head>
<body>

<div class="article-form">

    <?php $form = ActiveForm::begin(['action' => ['article/add'], 'method' => 'post']); ?>

    <?= $form->field($model, 'title')->textInput(['maxlength' => true]) ?>

    <?= $form->field($model, 'author')->textInput(['maxlength' => true]) ?>

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

    <?= $form->field($model, 'content')->textarea(['rows' => 6]) ?>

    <div class="form-group">
        <?= Html::submitButton('添加', ['class' => 'btn btn-primary', 'name' => 'submit-button']); ?>
        <?= Html::resetButton('重置', ['class' => 'btn btn-primary', 'name' => 'submit-button']); ?>

    </div>



</div>

</body>
</html>

D:\phpStudy\WWW\ten\advanced\backend\views\article_search.php

<?php

use yii\helpers\Html;
use yii\widgets\ActiveForm;

/* @var $this yii\web\View */
/* @var $model backend\models\ArticleSearch */
/* @var $form yii\widgets\ActiveForm */
?>

<div class="article-search">

    <?php $form = ActiveForm::begin([
        'action' => ['index'],
        'method' => 'get',
    ]); ?>

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

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

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

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

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

    <div class="form-group">
        <?= Html::submitButton('Search', ['class' => 'btn btn-primary']) ?>
        <?= Html::resetButton('Reset', ['class' => 'btn btn-default']) ?>
    </div>

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

</div>

D:\phpStudy\WWW\ten\advanced\backend\views\article\create.php

<?php

use yii\helpers\Html;


/* @var $this yii\web\View */
/* @var $model backend\models\article */

$this->title = '添加页面';
$this->params['breadcrumbs'][] = ['label' => '文章', 'url' => ['index']];
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="article-create">

    <h1><?= Html::encode($this->title) ?></h1>

    <?= $this->render('_form', [
        'model' => $model,
    ]) ?>

</div>

D:\phpStudy\WWW\ten\advanced\backend\views\article\index.php

<?php

use yii\helpers\Html;
use yii\grid\GridView;
//use yii\grid\GridView;
use yii\data\ActiveDataProvider;
use yii\widgets\LinkPager;
use backend\models\Article;


/* @var $this yii\web\View */
/* @var $searchModel backend\models\ArticleSearch */
/* @var $dataProvider yii\data\ActiveDataProvider */

$this->title = '文章';
$this->params['breadcrumbs'][] = $this->title;
?>
<!doctype html>
<html lang="en">
<link rel="stylesheet" href="./bootstrap/css/bootstrap.css">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>

<div class="article-index">
    <h1><?= Html::encode($this->title) ?></h1>
    <?php // echo $this->render('_search', ['model' => $searchModel]); ?>

    <p>
        <?= Html::a('添加数据', ['create'], ['class' => 'btn btn-success']) ?>
    </p>
    <?php
    $dataProvider = new ActiveDataProvider([
        'query' => Article::find(),
        'pagination' => [
            'pageSize' => 1,
        ],
    ]);
    echo GridView::widget([
        'dataProvider' => $dataProvider,
    ]);
    ?>

<?php
//echo LinkPager::widget([
//    'pagination' => $pages,
//]);
//?>
</div>
</body>
</html>

D:\phpStudy\WWW\ten\advanced\backend\views\article\update.php

<?php

use yii\helpers\Html;

/* @var $this yii\web\View */
/* @var $model backend\models\article */

$this->title = 'Update Article: ' . $model->title;
$this->params['breadcrumbs'][] = ['label' => 'Articles', 'url' => ['index']];
$this->params['breadcrumbs'][] = ['label' => $model->title, 'url' => ['view', 'id' => $model->id]];
$this->params['breadcrumbs'][] = 'Update';
?>
<div class="article-update">

    <h1><?= Html::encode($this->title) ?></h1>

    <?= $this->render('_form', [
        'model' => $model,
    ]) ?>

</div>

D:\phpStudy\WWW\ten\advanced\backend\views\article\view.php

<?php

use yii\helpers\Html;
use yii\widgets\DetailView;

/* @var $this yii\web\View */
/* @var $model backend\models\article */

$this->title = $model->title;
$this->params['breadcrumbs'][] = ['label' => 'Articles', 'url' => ['index']];
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="article-view">

    <h1><?= Html::encode($this->title) ?></h1>

    <p>
        <?= Html::a('Update', ['update', 'id' => $model->id], ['class' => 'btn btn-primary']) ?>
        <?= Html::a('Delete', ['delete', 'id' => $model->id], [
            'class' => 'btn btn-danger',
            'data' => [
                'confirm' => '你确定删除吗',
                'method' => 'post',
            ],
        ]) ?>
    </p>

    <?= DetailView::widget([
        'model' => $model,
        'attributes' => [
            'id',
            'title',
            'author',
            'datetime:datetime',
            'content:ntext',
        ],
    ]) ?>

</div>