类名称:
驼峰式 首字母大字
class PointController
class PointRatioController
公共成员方法:
驼峰式 首字母小写
public function getPointById()
私有成员方法:
驼峰式 首字母小写
private function _getPointById()
公共成员变量:
public $users
public $userName
私有成员变量:
private $_user
private $_userName
常量:
所有字母大写,单词间用下划线分隔
const POS_HEAD = 0;
代码编写规范
1. 多使用配置文件,避免硬编码
2. 多采用设计模式(工厂模式,单例模式等)
3. 使用注释
a) 对类名进行注释
b) 方法名进行注释(包括每个方法的参数与返回值)
c) 对常量进行注释
d) 对成员属性进行注释(public $userName; // 用户名)
e) 配置文件进行注释
Yii框架MVC模式:
model:
与数据持久层的交互
必要方法:
model(); // 静态方法 返回模型的实例
tableName(); // 返回数据库表名
rules(); // 表单的各种验证规则(用户名,email)
relations(); // 表关系配置(n:1 or 1:1 or n:n)
attributeLabels(); // 表字段国际化处理
search(); // 默认搜索方法
… 其他增删改查验证方法
controller:
主要处理用户的请求与响应
必要方法:
filters(); // 方法过滤
accessRules(); // 动作访问控制
actions(); // 动作action配置
… 其他处理请求与响应的方法
view:
采用Yii自带的组件模块
service:
对于业务逻辑比较复杂的系统,在增加业务逻辑层(service);程序员自由发挥的地方;
主要处理比较复杂的业务逻辑
命名规范:UsersService
执行流程:[注:service层用于逻辑比较复杂的时候]
views->controller->service->model à用户请求
model->service->controller->views à系统响应
数据库访问
1. 数据访问对象(DAO)
复杂sql语句查询时使用
$user = Yii::app()->db->createCommand()
->select(‘id, username, profile‘)
->from(‘tbl_user u‘)
->join(‘tbl_profile p‘, ‘u.id=p.user_id‘)
->where(‘id=:id‘, array(‘:id‘=>$id))
->queryRow();
2. ActiveRecord
简单sql语句查询及添加修改删除时使用
Admin::model()->find(‘id=:id’, array(‘:id’=>id));
注:查询条件使用占位符的方式
需求整理
???
Yii常用方法
CHtml
Static Methods
For CActiveRecords:
activeCheckbox($m, $a);
activeCheckboxList($m, $a, $data);
activeDropDownList($m, $a, $data);
activeFileField($m, $a);
activeHiddenField($m, $a);
activeId($m, $a);
activeLabel($m, $a);
activeLabelEx($m, $a);
activeListBox($m, $a, $data);
activePasswordField($m, $a);
activeRadioButton($m, $a);
activeRadioButtonList($m, $a, $data);
activeTextArea($m, $a);
activeTextField($m, $a);
CFormModel
Properties
attributes, errors, safeAttributeNames, scenario, validators
Public Methods Events
addError($a, $error);
afterValidate($scenario);
attributeLabels();
beforeValidate($scenario);
hasErrors($a);
rules();
validate($s=‘‘, $a=NULL);
onAfterValidate($e);
onBeforeValidate($e);
CDbConnection
Properties
active, autoCommit, autoConnect, charset, commandBuilder,
connectionStatus, connectionString, currentTransaction, lastInsertId,
password, schema, schemaCachingDuration, timeout, username
For CForm
checkbox($n, $v);
checkboxList($n, $v, $data);
dropDownList($n, $c, $data);
?leField($n, $v);
hiddenField($n, $v);
label($n, $v);
listBox($n, $v, $data);
passwordField($n, $v);
radioButton($n, $c);
radioButtonList($n, $m, $data);
textArea($n, $v);
textField($n, $v);
Yii (extends YiiBase)
Static Methods
app() /*gets the application instance */
t($category, $message, $params=array ( ),$source=NULL, $language=NULL);
import(string $alias, boolean $forceInclude=false);
log($msg, $level=‘info‘, $category=‘application‘);
CController (extends CBaseController)
Properties
action, defaultAction, id, layout, module, pageTitle
Methods
actions(); /*list of external actions*/
beginClip($id, $properties=array ( ));
endClip($idclip=’’);
beginWidget($className, $properties=array ( ));
endWidget(string $id=‘‘);
missingAction(string $actionID);
redirect($url, $terminate=true, $statusCode=302);
refresh($terminate=true,$anchor=‘‘);
render($view, $data=NULL, $return=false);
renderPartial($v, $d=NULL,$r=false, $processOutput=false);
widget( $className, $properties=array ( ));
CWebApplication (extends CApplication)
Core application components
errorHandler, securityManager, statePersister,
cache, messages, coreMessages
Properties
cache, charset, components, db, language, locale,
name, modules, securityManager, sourceLanguage
Methods
getNumberFormatter(); getDateFormatter();
CWidget (extends CBaseController)
Properties
controller, id, owner, viewPath
Methods
init(); run(); render($view, $data=NULL, $return=false);
Public Methods
beginTransaction();
createCommand($sql);
open();
close();
init();
quoteColumnName($name);
quoteTableName($name);
quoteValue($name);
CHttpRequest
Properties
baseUrl, browser, cookies, hostInfo, isAjaxRequest,
isPostRequest, isSecureConnection, pathInfo,
preferredLanguage, queryString, requestUri,
serverName, serverPort, url, urlReferrer, userAgent,
userHost, userHostAddress
Methods
sendFile($fn, $c, $mime=NULL, $t=true);
CActiveRecord
Properties
attributes, errors, isNewRecord, primaryKey, scenario
Static Methods
model($className=‘CActiveRecord‘);
Public Methods Events
count($c=’’, $p=array ( ));
delete();
deleteAll($c=‘‘, $p=array ( ));
?nd($c=‘‘, $p=array ( ));
?ndAll($c=‘‘, $p=array ( ));
?ndBySql($sql, $p=array ( ));
hasErrors($a);
update($a=NULL);
updateAll($a, $c=‘‘, $p=array ( ));
updateByPk($pk, $a, $c=‘‘, $p=array ( ));
validate();
onAfterDelete($e);
onAfterInsert($e);
onAfterSave($e);
onAfterValidate($e);
onBeforeDelete($e);
onBeforeSave($e);
onBeforeValidate($e);
CDbCommand
Properties
connection, text
Public Methods
bindParam($n, $v, $dt=NULL, $length=NULL);
bindValue($n, $v, $dataType=NULL);
execute();
query();
queryAll($fetchAssociative=true);
queryColumn();
queryRow($fetchAssociative=true);
queryScalar();