本文實例講述了YII Framework框架使用YIIC快速創建YII應用之migrate用法。分享給大家供大家參考，具體如下：
yii migrate
查看幫助
/* /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. */
在我們開發程序的過程中，數據庫的結構也是不斷調整的。我們的開發中要保證代碼和數據庫庫的同步。因為我們的應用離不開數據庫。例如: 在開發過程中，我們經常需要增加一個新的表，或者我們後期投入運營的產品，可能需要為某一列添加索引。我們必須保持數據結構和代碼的一致性。如果代碼和數據庫不同步，可能整個系統將無法正常運行。出於這個原因。yii提供了一個數據庫遷移工具，可以保持代碼和數據庫是同步。方便數據庫的回滾和更新。
功能正如描述。主要提供了數據庫遷移功能。
命令格式
yiic migrate [action] [parameter]
action參數用來制定執行哪一個遷移任務。可以一使用
up, down, to, create, history, new, mark.這些命令
如果沒有action參數，默認為up
parameter根據action的不同而有所變化。
上述例子中給出了說明。
官方也給出了詳細的例子。
http://www.yiiframework.com/doc/guide/1.1/zh_cn/database.migration#creating-migrations
這裡不再詳細累述。用到的時候參考使用就可以了。
補充：yii2.0使用migrate創建後台登陸
重新創建一張數據表來完成後台登陸驗證
為了大家看得明白，直接貼代碼
一、使用Migration創建表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', //密碼
'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);
}
}
使用命令行來創建admin數據庫
1、win7下使用命令：
在項目根目下，右鍵選擇User composer here(前提是安裝了全局的composer)，
yii migrate
即創建數據表 admin成功
2、linux下命令一樣（此處略）
二、使用gii創建模型
此處略，很簡單的步聚。
注：把admin模型創在 backend/models下面 （放哪裡看個人喜好）
代碼如下
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 為後如初使化一個登陸帳號
1、console\controllers創建InitController.php
/** * * @author chan <[email protected]> */ namespace console\controllers; use backend\models\Admin ; class InitController extends \yii\console\Controller { /** * Create init user */ public function actionAdmin() { echo "創建一個新用戶 ...\n"; // 提示當前操作 $username = $this->prompt('User Name:'); // 接收用戶名 $email = $this->prompt('Email:'); // 接收Email $password = $this->prompt('Password:'); // 接收密碼 $model = new AgAdmin(); // 創建一個新用戶 $model->username = $username; // 完成賦值 $model->email = $email; $model->password = $password; if (!$model->save()) // 保存新的用戶 { foreach ($model->getErrors() as $error) // 如果保存失敗，說明有錯誤，那就輸出錯誤信息。 { foreach ($error as $e) { echo "$e\n"; } } return 1; // 命令行返回1表示有異常 } return 0; // 返回0表示一切OK } }
2、使用命令：
在項目根目下，右鍵選擇User composer here(前提是安裝了全局的composer)，
yii init/admin
到此，打開數據表看下，己經有了數據。
四、後台登陸驗證
1、backend\controllers\SiteController.php 裡actionLogin方法不用變
2、把common\models\LoginForm.php復制到backend\models只要把LoginForm.php裡面的方法getUser()修改一個單詞即可，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，在作修改時，請注意下命令空不要搞亂了。
到此，結束。
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