hi, please help me starting development in yii

Archives Yii 1.0.x Discussions
1

hi all

I was earlier developing apps with Cakephp, i heard about yii and its features. i now want to start developing in yii, im seeing docs and blog tutorial, one little thing is confusing me, though it may be very basic thing:

In yii, like bellow cod eexample:

<?php

class UserIdentity extends CUserIdentity

{

private $ id;

public function authenticate()

{

$username=strtolower($this->username);

$user=User::model()->find(‘LOWER(username)=?’,array($username));

if($user===null)

$this->errorCode=self::ERROR USERNAME INVALID;

else if(md5($this->password)!==$user->password)

what does User::model()->find() in the line

$user=User::model()->find(‘LOWER(username)=?’,array($username));

reffer too ??

because we reffed objects like this

Object_name->method_name,

why at many places "::" (double column) is being used? what is its significant.

Please help, this is confusing me in learning yii

Thanx in advance

Sukhwinder

2

you can refer the php manual to see that.

the double colon

3

You can think of the expression SomeModel::model() as a singleton, it returns one shared instance of SomeModel, created on first call.

/Tommy

4

I know we can access static method/properties without instantiating the class with double colon like

e.g

[indent]class_name::static_method_name()[/indent]

But what significant it have in above line of code ?

is mode() a static method of class "User" ?

Please explain a bit.

Thanx

5

There is explanation in Yii document.

Class Reference for CActiveRecord

6

Thanx , i got the idea.