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
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/*
/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
consolemigrationsm130524_201442_init.php
use yiidbschema;
use yiidbmigration;
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 backendmodels;
use yii;
use yiibasenotsupportedexception;
use yiibehaviorstimestampbehavior;
use yiidbactiverecord;
use yiiwebidentityinterface;
/**
* 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、consolecontrollers创建initcontroller.php
/**
*
* @author chan <maclechan@qq.com>
*/
namespace consolecontrollers;
use backendmodelsadmin ;
class initcontroller extends yiiconsolecontroller
{
/**
* 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 $e)
{
echo "$en";
}
}
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、backendcontrollerssitecontroller.php 里actionlogin方法不用变
2、把commonmodelsloginform.php复制到backendmodels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、backendconfigmain.php 只要修改
'user' => [
'identityclass' => 'backendmodelsadmin',
'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。
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