yii2.0增删改查实例讲解
一.创建数据库文件.
创建表
CREATE TABLE `resource` (
`id` int(10) NOT NULL AUTO_INCREMENT,
`texture` varchar(50) NOT NULL COMMENT '材质',
`mark` varchar(50) NOT NULL COMMENT '牌号',
`manufacturers` varchar(100) NOT NULL COMMENT '厂家',
`price` int(11) NOT NULL COMMENT '价格',
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=10 DEFAULT CHARSET=utf8;
INSERT INTO `resource` VALUES ('1', 'PP', '300H', '中沙石化', '8300');
INSERT INTO `resource` VALUES ('2', 'LDPE', 'LD605', '燕山石化', '9850');
INSERT INTO `resource` VALUES ('3', 'ABS', 'D-190 ', '镇江奇美', '11300');
INSERT INTO `resource` VALUES ('4', 'ABS', 'D-180 ', '镇江奇美', '11500');
INSERT INTO `resource` VALUES ('5', 'ABS', 'D-2400 ', '镇江奇美', '17600');
INSERT INTO `resource` VALUES ('6', 'YH', 'YH100', '测试', '199466');
INSERT INTO `resource` VALUES ('7', 'YH', 'YH200', '测试', '56256');
INSERT INTO `resource` VALUES ('8', 'QW', 'QW-21', '压紧', '19865');
INSERT INTO `resource` VALUES ('9', 'ZX', 'ZX-82', '水果', '98632');
INSERT INTO `resource` VALUES ('10', 'OP', 'OP98', '叶城', '38941');二.定义控制器controller
namespace app\controllers; use Yii;
use yii\web\Controller;
use yii\data\Pagination;
use app\models\Resources; class ResourcesController extends Controller
{
/**
* 数据列表
*/
public function actionIndex($id = '')
{
$query = Resources::find();
$pages = new Pagination([
'defaultPageSize' => '4',
'totalCount' => $query->count(),
]); $model = $query->orderBy('id DESC')
->offset($pages->offset)
->limit($pages->limit)
->all(); return $this->render('index', [
'model' => $model,
'pages' => $pages,
'id' => $id,
]);
} /**
* 添加数据
*/
public function actionAdd($id = '')
{
if($id){
$model = Resources::findOne($id);
}else{
$model = new Resources();
}
if($model->load(Yii::$app->request->post()) && $model->validate()){
$model->save();
return $this->redirect(array('resources/index'));
}
return $this->render('add', [
'model' => $model,
'id' => $id,
]);
} /**
* 更新数据
*/
public function actionUpdate($id)
{
return $this->redirect(array('resources/add','id' => $id));
} /**
* 删除数据
*/
public function actionDelete($id)
{
Resources::findOne($id)->delete();
return $this->redirect(array('resources/index'));
}
}
三.定义model
namespace app\models; use Yii; /**
* This is the model class for table "resource".
*
* @property integer $id
* @property string $texture
* @property string $mark
* @property string $manufacturers
* @property integer $price
*/
class Resources extends \yii\db\ActiveRecord
{
/**
* @inheritdoc
*/
public static function tableName()
{
return 'resource';
} /**
* @inheritdoc
*/
public function rules()
{
return [
[['texture', 'mark', 'manufacturers', 'price'], 'required'],
[['price'], 'integer'],
[['texture', 'mark'], 'string', 'max' => 50],
[['manufacturers'], 'string', 'max' => 100],
];
} /**
* @inheritdoc
*/
public function attributeLabels()
{
return [
'id' => "ID",
'texture' =>"材质",
'mark' => Yii::t('app', '牌号'),
'manufacturers' => Yii::t('app', '厂家'),
'price' => Yii::t('app', '价格'),
];
}
}
四.定义视图view
1.index.php
<?php
use yii\helpers\Html;
use yii\widgets\LinkPager;
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>资源列表</title>
<style type="text/css">
.list-head{margin-bottom:10px;overflow:hidden;}
.list-head strong{padding:6px 0;font-size:16px;} .list-table{width:100%;}
.list-table thead{font-weight:bold;}
.list-table td{line-height:30px;text-align:center;border:1px solid #eee;} .fl{float:left;}
.fr{float:right;}
</style>
</head>
<body>
<?= $id ?>
<div class="list-head">
<strong class="fl">资源列表</strong>
<a href="index.php?r=resources/add" class="btn btn-primary fr">添加</a>
</div>
<table class="list-table">
<thead>
<tr>
<td>ID</td>
<td>材质</td>
<td>牌号</td>
<td>厂家</td>
<td>价格</td>
<td>操作</td>
</tr>
</thead>
<tbody>
<?php foreach($model as $resource): ?>
<tr>
<td><?= Html::encode($resource->id) ?></td>
<td><?= Html::encode($resource->texture) ?></td>
<td><?= Html::encode($resource->mark) ?></td>
<td><?= Html::encode($resource->manufacturers) ?></td>
<td><?= Html::encode($resource->price) ?></td>
<td>
<a href="index.php?r=resources/update&id=<?= Html::encode($resource->id) ?>">编辑</a>
<a href="index.php?r=resources/delete&id=<?= Html::encode($resource->id) ?>" onclick="if(confirm('确定删除该条数据?')==false)return false;">删除</a>
</td>
</tr>
<?php endforeach; ?>
</tbody>
</table>
<?= LinkPager::widget(['pagination' => $pages]) ?>
</body>
</html>
2.add.php
<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;
?> <?php $form = ActiveForm::begin(); ?>
<?php if($id): ?>
<?= $form->field($model, 'id')->textInput(['value' => $id, 'disabled' => 'disabled']) ?>
<?php endif; ?>
<?= $form->field($model, 'texture') ?>
<?= $form->field($model, 'mark') ?>
<?= $form->field($model, 'manufacturers') ?>
<?= $form->field($model, 'price') ?>
<div class="form-group">
<?php if($id): ?>
<?= Html::submitButton('修改', ['class' => 'btn btn-primary']) ?>
<?php else:?>
<?= Html::submitButton('添加', ['class' => 'btn btn-primary']) ?>
<?php endif; ?>
</div>
<?php ActiveForm::end(); ?>
五.运行结果如下: