YII Framework框架使用YIIC快速创建YII应用之migrate用法实例详解

本文实例讲述了YIIFramework框架使用YIIC快速创建YII应用之migrate用法。分享给大家供大家参考

本文实例讲述了YII Framework框架使用YIIC快速创建YII应用之migrate用法。分享给大家供大家参考，具体如下：

yii migrate

查看帮助

/*
/www/yii_dev/yii/framework# php yiic migrate help
Error: Unknown action: help
USAGE
 yiic migrate [action] [parameter]
DESCRIPTION
 This command provides support for database migrations. The optional
 'action' parameter specifies which specific migration task to perform.
 It can take these values: up, down, to, create, history, new, mark.
 If the 'action' parameter is not given, it defaults to 'up'.
 Each action takes different parameters. Their usage can be found in
 the following examples.

EXAMPLES

* yiic migrate
Applies ALL new migrations. This is equivalent to 'yiic migrate to'.
* yiic migrate create create_user_table
Creates a new migration named 'create_user_table'.
* yiic migrate up 3
Applies the next 3 new migrations.
* yiic migrate down
Reverts the last applied migration.
* yiic migrate down 3
Reverts the last 3 applied migrations.
* yiic migrate to 101129_185401
Migrates up or down to version 101129_185401.
* yiic migrate mark 101129_185401
Modifies the migration history up or down to version 101129_185401.
No actual migration will be performed.
* yiic migrate history
Shows all previously applied migration information.
* yiic migrate history 10
Shows the last 10 applied migrations.
* yiic migrate new
Shows all new migrations.
* yiic migrate new 10
Shows the next 10 migrations that have not been applied.
*/

在我们开发程序的过程中，数据库的结构也是不断调整的。我们的开发中要保证代码和数据库库的同步。因为我们的应用离不开数据库。例如: 在开发过程中，我们经常需要增加一个新的表，或者我们后期投入运营的产品，可能需要为某一列添加索引。我们必须保持数据结构和代码的一致性。如果代码和数据库不同步，可能整个系统将无法正常运行。出于这个原因。yii提供了一个数据库迁移工具，可以保持代码和数据库是同步。方便数据库的回滚和更新。

功能正如描述。主要提供了数据库迁移功能。

命令格式

yiic migrate [action] [parameter]

action参数用来制定执行哪一个迁移任务。可以一使用

up, down, to, create, history, new, mark.这些命令

如果没有action参数，默认为up

parameter根据action的不同而有所变化。

上述例子中给出了说明。

官方也给出了详细的例子。

http://www.yiiframework.com/doc/guide/1.1/zh_cn/database.migration#creating-migrations

这里不再详细累述。用到的时候参考使用就可以了。

补充：yii2.0使用migrate创建后台登陆

重新创建一张数据表来完成后台登陆验证

为了大家看得明白，直接贴代码

一、使用Migration创建表admin

console\migrations\m130524_201442_init.php

use yii\db\Schema;
use yii\db\Migration;
class m130524_201442_init extends Migration
{
 const TBL_NAME = '{{%admin}}';
 public function safeUp()
 {
 $tableOptions = null;
 if ($this->db->driverName === 'mysql') {
 // http://stackoverflow.com/questions/766809/whats-the-difference-between-utf8-general-ci-and-utf8-unicode-ci
 $tableOptions = 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB';
 }
 $this->createTable(self::TBL_NAME, [
 'id' => Schema::TYPE_PK,
 'username' => Schema::TYPE_STRING . ' NOT NULL',
 'auth_key' => Schema::TYPE_STRING . '(32) NOT NULL',
 'password_hash' => Schema::TYPE_STRING . ' NOT NULL', //密码
 'password_reset_token' => Schema::TYPE_STRING,
 'email' => Schema::TYPE_STRING . ' NOT NULL',
 'role' => Schema::TYPE_SMALLINT . ' NOT NULL DEFAULT 10',
 'status' => Schema::TYPE_SMALLINT . ' NOT NULL DEFAULT 10',
 'created_at' => Schema::TYPE_INTEGER . ' NOT NULL',
 'updated_at' => Schema::TYPE_INTEGER . ' NOT NULL',
 ], $tableOptions);
 $this->createIndex('username', self::TBL_NAME, ['username'],true);
 $this->createIndex('email', self::TBL_NAME, ['email'],true);
 }
 public function safeDown()
 {
 $this->dropTable(self::TBL_NAME);
 }
}

使用命令行来创建admin数据库

1、win7下使用命令：

在项目根目下，右键选择User composer here(前提是安装了全局的composer)， yii migrate

即创建数据表 admin成功

2、linux下命令一样（此处略）

二、使用gii创建模型

此处略，很简单的步聚。

注：把admin模型创在 backend/models下面 （放哪里看个人喜好） 代码如下

namespace backend\models;
use Yii;
use yii\base\NotSupportedException;
use yii\behaviors\TimestampBehavior;
use yii\db\ActiveRecord;
use yii\web\IdentityInterface;
/**
 * This is the model class for table "{{%admin}}".
 *
 * @property integer $id
 * @property string $username
 * @property string $auth_key
 * @property string $password_hash
 * @property string $password_reset_token
 * @property string $email
 * @property integer $role
 * @property integer $status
 * @property integer $created_at
 * @property integer $updated_at
 */
class AgAdmin extends ActiveRecord implements IdentityInterface
{
 const STATUS_DELETED = 0;
 const STATUS_ACTIVE = 10;
 const ROLE_USER = 10;
 const AUTH_KEY = '123456';
 /**
 * @inheritdoc
 */
 public static function tableName()
 {
 return '{{%admin}}';
 }
 /**
 * @inheritdoc
 */
 public function behaviors()
 {
 return [
 TimestampBehavior::className(),
 ];
 }
 /**
 * @inheritdoc
 */
 public function rules()
 {
 return [
 [['username', 'email',], 'required'],
 [['username', 'email'], 'string', 'max' => 255],
 [['username'], 'unique'],
 [['username'], 'match', 'pattern'=>'/^[a-z]\w*$/i'],
 [['email'], 'unique'],
 [['email'], 'email'],
 ['status', 'default', 'value' => self::STATUS_ACTIVE],
 ['status', 'in', 'range' => [self::STATUS_ACTIVE, self::STATUS_DELETED]],
 ['role', 'default', 'value' => self::ROLE_USER],
 ['auth_key', 'default', 'value' => self::AUTH_KEY],
 ['role', 'in', 'range' => [self::ROLE_USER]],
 ];
 }
 /**
 * @inheritdoc
 */
 public static function findIdentity($id)
 {
 return static::findOne(['id' => $id, 'status' => self::STATUS_ACTIVE]);
 }
 /**
 * @inheritdoc
 */
 public static function findIdentityByAccessToken($token, $type = null)
 {
 return static::findOne(['access_token' => $token]);
 //throw new NotSupportedException('"findIdentityByAccessToken" is not implemented.');
 }
 /**
 * Finds user by username
 *
 * @param string $username
 * @return static|null
 */
 public static function findByUsername($username)
 {
 return static::findOne(['username' => $username, 'status' => self::STATUS_ACTIVE]);
 }
 /**
 * Finds user by password reset token
 *
 * @param string $token password reset token
 * @return static|null
 */
 public static function findByPasswordResetToken($token)
 {
 if (!static::isPasswordResetTokenValid($token)) {
 return null;
 }
 return static::findOne([
 'password_reset_token' => $token,
 'status' => self::STATUS_ACTIVE,
 ]);
 }
 /**
 * Finds out if password reset token is valid
 *
 * @param string $token password reset token
 * @return boolean
 */
 public static function isPasswordResetTokenValid($token)
 {
 if (empty($token)) {
 return false;
 }
 $expire = Yii::$app->params['user.passwordResetTokenExpire'];
 $parts = explode('_', $token);
 $timestamp = (int) end($parts);
 return $timestamp + $expire >= time();
 }
 /**
 * @inheritdoc
 */
 public function getId()
 {
 return $this->getPrimaryKey();
 }
 /**
 * @inheritdoc
 */
 public function getAuthKey()
 {
 return $this->auth_key;
 }
 /**
 * @inheritdoc
 */
 public function validateAuthKey($authKey)
 {
 return $this->getAuthKey() === $authKey;
 }
 /**
 * Validates password
 *
 * @param string $password password to validate
 * @return boolean if password provided is valid for current user
 */
 public function validatePassword($password)
 {
 return Yii::$app->security->validatePassword($password, $this->password_hash);
 }
 /**
 * Generates password hash from password and sets it to the model
 *
 * @param string $password
 */
 public function setPassword($password)
 {
 $this->password_hash = Yii::$app->security->generatePasswordHash($password);
 }
 /**
 * Generates "remember me" authentication key
 */
 public function generateAuthKey()
 {
 $this->auth_key = Yii::$app->security->generateRandomString();
 }
 /**
 * Generates new password reset token
 */
 public function generatePasswordResetToken()
 {
 $this->password_reset_token = Yii::$app->security->generateRandomString() . '_' . time();
 }
 /**
 * Removes password reset token
 */
 public function removePasswordResetToken()
 {
 $this->password_reset_token = null;
 }
}

三、使用migrate 为后如初使化一个登陆帐号

1、console\controllers创建InitController.php

/**
 *
 * @author chan <maclechan@qq.com>
 */
namespace console\controllers;
use backend\models\Admin ;
class InitController extends \yii\console\Controller
{
 /**
 * Create init user
 */
 public function actionAdmin()
 {
 echo "创建一个新用户 ...\n"; // 提示当前操作
 $username = $this->prompt('User Name:'); // 接收用户名
 $email = $this->prompt('Email:'); // 接收Email
 $password = $this->prompt('Password:'); // 接收密码
 $model = new AgAdmin(); // 创建一个新用户
 $model->username = $username; // 完成赋值
 $model->email = $email;
 $model->password = $password;
 if (!$model->save()) // 保存新的用户
 {
 foreach ($model->getErrors() as $error) // 如果保存失败，说明有错误，那就输出错误信息。
 {
 foreach ($error as $e)
 {
 echo "$e\n";
 }
 }
 return 1; // 命令行返回1表示有异常
 }
 return 0; // 返回0表示一切OK
 }
}

2、使用命令：

在项目根目下，右键选择User composer here(前提是安装了全局的composer)， yii init/admin

到此，打开数据表看下，己经有了数据。

四、后台登陆验证

1、backend\controllers\SiteController.php 里actionLogin方法不用变

2、把common\models\LoginForm.php复制到backend\models只要把LoginForm.php里面的方法getUser()修改一个单词即可，如下

public function getUser()
{
 if ($this->_user === false) {
 $this->_user = Admin::findByUsername($this->username);
 }
 return $this->_user;
}

3、backend\config\main.php 只要修改

'user' => [
 'identityClass' => 'backend\models\Admin',
 'enableAutoLogin' => true,
],

此外，在作修改时，请注意下命令空不要搞乱了。

到此，结束。

YII Framework YIIC 创建 YII应用 migrate