srcminiYii提供了一个gii工具, 它是一个代码生成器工具。它为你提供了CRUD的生成代码。我们将学习如何使用gii生成CRUD。
这里显示了一个简单的示例来生成粗粒。我们将Yii2文件夹命名为crud。我们的表名是雇员。
步骤1打开Gii
在浏览器中, 键入以下内容：http：//localhost/crud/frontend/web/index.php？r = gii
步骤2产生模型
查看上面的快照, 输入表名称(在本例中为employee)。将生成员工模型类。向下滚动页面, 然后单击预览按钮。
查看上面的snpashot, 单击”生成”按钮以生成代码。
你将看到如上所示的成功消息。
步骤2产生CRUD
看一下上面的快照,
在模型类中, 生成路径为frontend \ models \ Employees的雇员文件。
在搜索模型类中, 生成带有路径frontend \ controllers \ EmployeesSearch的EmployeesSearch文件。
在Controller类中, 生成路径为@frontend \ views \ Employees的EmployeesController文件。
单击预览按钮以检查错误。如果没有错误, 请单击”生成”按钮以生成代码。再次, 你将获得成功的消息以进行代码生成。
现在, 我们的CRUD已成功生成。要检查它, 请在浏览器上使用URL http：//localhost/crud/frontend/web/index.php？r = employees /
查看上面的快照, Employees是我们的表名, 你可以从该表中搜索条目。
要在表中插入值, 请单击创建员工按钮。将出现以下页面。
填写上面的详细信息, 然后单击”创建”按钮。数据将被插入到表employees中。
查看上面的快照, 我们在表中填写了一些条目。在这里, 你可以看到查看, 更新和删除的图标。
单击”查看”图标时, 将出现包含约翰信息的下一页。
单击”更新”图标后, 将出现包含John信息的下一页, 你可以在其中进行任何编辑。进行更改后, 单击更新按钮。
单击删除图标后, 将出现以下框, 要求你删除它。
生成的代码
在控制器中, 文件EmployeesController.php将具有以下代码。
<?php
namespace frontend\controllers;
use Yii;
use frontend\models\Employees;
use frontend\models\EmployeesSearch;
use yii\web\Controller;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
/**
* EmployeesController implements the CRUD actions for Employees model.
*/
class EmployeesController extends Controller
{
/**
* @inheritdoc
*/
public function behaviors()
{
return [
'verbs' => [
'class' => VerbFilter::className(), 'actions' => [
'delete' => ['POST'], ], ], ];
}
/**
* Lists all Employees models.
* @return mixed
*/
public function actionIndex()
{
$searchModel = new EmployeesSearch();
$dataProvider = $searchModel->search(Yii::$app->request->queryParams);
return $this->render('index', [
'searchModel' => $searchModel, 'dataProvider' => $dataProvider, ]);
}
/**
* Displays a single Employees model.
* @param integer $id
* @return mixed
*/
public function actionView($id)
{
return $this->render('view', [
'model' => $this->findModel($id), ]);
}
/**
* Creates a new Employees model.
* If creation is successful, the browser will be redirected to the 'view' page.
* @return mixed
*/
public function actionCreate()
{
$model = new Employees();
if ($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 Employees model.
* If update is successful, the browser will be redirected to the 'view' page.
* @param integer $id
* @return mixed
*/
public function actionUpdate($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 Employees model.
* If deletion is successful, the browser will be redirected to the 'index' page.
* @param integer $id
* @return mixed
*/
public function actionDelete($id)
{
$this->findModel($id)->delete();
return $this->redirect(['index']);
}
/**
* Finds the Employees model based on its primary key value.
* If the model is not found, a 404 HTTP exception will be thrown.
* @param integer $id
* @return Employees the loaded model
* @throws NotFoundHttpException if the model cannot be found
*/
protected function findModel($id)
{
if (($model = Employees::findOne($id)) !== null) {
return $model;
} else {
throw new NotFoundHttpException('The requested page does not exist.');
}
}
}在模型中, 文件Employees.php将具有以下代码。
<?php
namespace frontend\models;
use Yii;
/**
* This is the model class for table "employees".
*
* @property integer $id
* @property string $name
* @property string $designation
* @property integer $contact
* @property string $email
*/
class Employees extends \yii\db\ActiveRecord
{
/**
* @inheritdoc
*/
public static function tableName()
{
return 'employees';
}
/**
* @inheritdoc
*/
public function rules()
{
return [
[['name', 'designation', 'contact', 'email'], 'required'], [['contact'], 'integer'], [['name'], 'string', 'max' => 20], [['designation'], 'string', 'max' => 50], [['email'], 'string', 'max' => 80], ];
}
/**
* @inheritdoc
*/
public function attributeLabels()
{
return [
'id' => 'ID', 'name' => 'Name', 'designation' => 'Designation', 'contact' => 'Contact', 'email' => 'Email', ];
}
}在模型中, 文件EmployeesSearch.php将具有以下代码。
<?php
namespace frontend\models;
use Yii;
use yii\base\Model;
use yii\data\ActiveDataProvider;
use frontend\models\Employees;
/**
* EmployeesSearch represents the model behind the search form about `frontend\models\Employees`.
*/
class EmployeesSearch extends Employees
{
/**
* @inheritdoc
*/
public function rules()
{
return [
[['id', 'contact'], 'integer'], [['name', 'designation', 'email'], 'safe'], ];
}
/**
* @inheritdoc
*/
public function scenarios()
{
// bypass scenarios() implementation in the parent class
return Model::scenarios();
}
/**
* Creates data provider instance with search query applied
*
* @param array $params
*
* @return ActiveDataProvider
*/
public function search($params)
{
$query = Employees::find();
// add conditions that should always apply here
$dataProvider = new ActiveDataProvider([
'query' => $query, ]);
$this->load($params);
if (!$this->validate()) {
// uncomment the following line if you do not want to return any
records when validation fails
// $query->where('0=1');
return $dataProvider;
}
// grid filtering conditions
$query->andFilterWhere([
'id' => $this->id, 'contact' => $this->contact, ]);
$query->andFilterWhere(['like', 'name', $this->name])
->andFilterWhere(['like', 'designation', $this->designation])
->andFilterWhere(['like', 'email', $this->email]);
return $dataProvider;
}
}在视图中, 文件view.php将具有以下代码。
<?php
use yii\helpers\Html;
use yii\widgets\DetailView;
/* @var $this yii\web\View */
/* @var $model frontend\models\Employees */
$this->title = $model->name;
$this->params['breadcrumbs'][] = ['label' => 'Employees', 'url' => ['index']];
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="employees-view">
<h1><?= Html::encode($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' => 'Are you sure you want to delete this item?', 'method' => 'post', ], ]) ?>
</p>
<?= DetailView::widget([
'model' => $model, 'attributes' => [
'id', 'name', 'designation', 'contact', 'email:email', ], ]) ?>
</div>在视图中, 文件form.php将具有以下代码。
<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;
/* @var $this yii\web\View */
/* @var $model frontend\models\Employees */
/* @var $form yii\widgets\ActiveForm */
?>
<div class="employees-form">
<?php $form = ActiveForm::begin(); ?>
<?= $form->field($model, 'name')->textInput(['maxlength' => true]) ?>
<?= $form->field($model, 'designation')->textInput(['maxlength' => true]) ?>
<?= $form->field($model, 'contact')->textInput() ?>
<?= $form->field($model, 'email')->textInput(['maxlength' => true]) ?>
<div class="form-group">
<?= Html::submitButton($model->isNewRecord ? 'Create' : 'Update', ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
</div>
<?php ActiveForm::end(); ?>
</div>在视图中, 文件search.php将具有以下代码。
<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;
/* @var $this yii\web\View */
/* @var $model frontend\models\EmployeesSearch */
/* @var $form yii\widgets\ActiveForm */
?>
<div class="employees-search">
<?php $form = ActiveForm::begin([
'action' => ['index'], 'method' => 'get', ]); ?>
<?= $form->field($model, 'id') ?>
<?= $form->field($model, 'name') ?>
<?= $form->field($model, 'designation') ?>
<?= $form->field($model, 'contact') ?>
<?= $form->field($model, 'email') ?>
<div class="form-group">
<?= Html::submitButton('Search', ['class' => 'btn btn-primary']) ?>
<?= Html::resetButton('Reset', ['class' => 'btn btn-default']) ?>
</div>
<?php ActiveForm::end(); ?>
</div>在视图中, 文件create.php将具有以下代码。
<?php
use yii\helpers\Html;
/* @var $this yii\web\View */
/* @var $model frontend\models\Employees */
$this->title = 'Create Employees';
$this->params['breadcrumbs'][] = ['label' => 'Employees', 'url' => ['index']];
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="employees-create">
<h1><?= Html::encode($this->title) ?></h1>
<?= $this->render('_form', [
'model' => $model, ]) ?>
</div>在视图中, 文件index.php将具有以下代码。
<?php
use yii\helpers\Html;
use yii\grid\GridView;
/* @var $this yii\web\View */
/* @var $searchModel frontend\models\EmployeesSearch */
/* @var $dataProvider yii\data\ActiveDataProvider */
$this->title = 'Employees';
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="employees-index">
<h1><?= Html::encode($this->title) ?></h1>
<?php // echo $this->render('_search', ['model' => $searchModel]); ?>
<p>
<?= Html::a('Create Employees', ['create'], ['class' => 'btn btn-success']) ?>
</p>
<?= GridView::widget([
'dataProvider' => $dataProvider, 'filterModel' => $searchModel, 'columns' => [
['class' => 'yii\grid\SerialColumn'], 'id', 'name', 'designation', 'contact', 'email:email', ['class' => 'yii\grid\ActionColumn'], ], ]); ?>
</div>在视图中, 文件update.php将具有以下代码。
<?php
use yii\helpers\Html;
/* @var $this yii\web\View */
/* @var $model frontend\models\Employees */
$this->title = 'Update Employees: ' . $model->name;
$this->params['breadcrumbs'][] = ['label' => 'Employees', 'url' => ['index']];
$this->params['breadcrumbs'][] = ['label' => $model->name, 'url' => ['view', 'id' => $model->id]];
$this->params['breadcrumbs'][] = 'Update';
?>
<div class="employees-update">
<h1><?= Html::encode($this->title) ?></h1>
<?= $this->render('_form', [
'model' => $model, ]) ?>
</div>下载此示例
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