Just write the following function in your module’s controller and customer log in is checked before each of your controller action.

/**
 * Checking if user is logged in or not
 * If not logged in then redirect to customer login
 */
public function preDispatch()
{
	parent::preDispatch();

	if (!Mage::getSingleton('customer/session')->authenticate($this)) {
		$this->setFlag('', 'no-dispatch', true);
	}
}

Hope this helps. Thanks.

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5. Magento Admin login problem

- I have installed WordPress MU in localhost (local computer).
- I am using Windows XP Operating System.
- I am using WAMP Server.

Problem:

When installing WordPress MU, I was getting the following error:-

Warning! Installing to http://localhost/ is not supported. Please use http://localhost.localdomain/ instead.

I was able to get rid of this warning message by commenting the following line (present at around Line 8 to 10) in index-install.php file present inside the wordpress-mu folder:-

if( $_SERVER[ 'HTTP_HOST' ] == 'localhost' ) {
	die( "<h2>Warning!</h2><p>Installing to http://localhost/ is not supported. Please use <a href='http://localhost.localdomain/'>http://localhost.localdomain/</a> instead.</p>" );
}

By doing this, I was able to install wordpress MU completely in localhost.

But, now I get a strange error. When I try to login to admin panel, I always get redirected back to the login page. I cannot access the dashboard.

Solution:

- Go to C:\WINDOWS\system32\drivers\etc
- Open the file named hosts in notepad
- At the end of the file, write the following:-
127.0.0.1 localhost.localdomain

- Reinstall WordPress MU using localhost.localdomain instead of localhost.

Suppose you have wordpress MU files in a directory named wordpress-mu. Then, you should type the following URL in the browser:-

http://localhost.localdomain/wordpress-mu/

Hope this helps and thanks for reading.

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5. Magento: Solution to “Error: 404 Not Found” in Admin Login Page

I had a new installation of magento. But I was unable to login as an administrator. I went

to the admin login page, entered correct username and password but was redirected to the

same login page. I could not enter the dashboard page. Error message is displayed when I

enter wrong username or password. But nothing is displayed and I am redirected to the same

login page when I insert correct username and password.

Solution:

I googled and found these solutions:-

1) Use 127.0.0.1 instead of localhost in your url, i.e. using

http://127.0.0.1/magento/index.php/admin instead of
http://localhost/magento/index.php/admin . But this didn’t solve my problem.

2) Since I am using Windows XP, I was suggested to open “host” file from
C:\WINDOWS\system32\drivers\etc and have 127.0.0.1 point to something like magento.localhost

or even 127.0.0.1 point to http://www.localhost.com . But this also didn’t work either.

3) This solution finally helped me out of this problem. The solution was to modify the core

Magento code. Open

app/code/core/Mage/Core/Model/Session/Abstract/Varien.php. Comment out the

lines 80 to 83. The line number may vary according to the Magento version. But these lines

are present somewhere near line 80. You have to comment the comma (,) in line: $this-

>getCookie()->getPath()//,

// set session cookie params
session_set_cookie_params(
$this->getCookie()->getLifetime(),
$this->getCookie()->getPath()//,
//$this->getCookie()->getDomain(),
//$this->getCookie()->isSecure(),
//$this->getCookie()->getHttponly()
);

Well, I am out of this problem. Hope, this solution you also help you.

Update (For Magento 1.4.*)

In Magento 1.4, you have to comment code from line 86 to 98 in

app/code/core/Mage/Core/Model/Session/Abstract/Varien.php. Like this:-

/*  if (!$cookieParams['httponly']) {
	unset($cookieParams['httponly']);
	if (!$cookieParams['secure']) {
		unset($cookieParams['secure']);
		if (!$cookieParams['domain']) {
			unset($cookieParams['domain']);
		}
	}
} 

if (isset($cookieParams['domain'])) {
	$cookieParams['domain'] = $cookie->getDomain();
} */

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But i got feedback that it was a bit complex for novice users of PHP (users who have just started PHPing). It was a kind of full-fledge system with PHP, MySQL and session.

So in this article, I have simplified the same functionality of the above tutorial. I have not used session in this case. If you want tutorial about session, login, and register then you can refer to my previous article (the link which is provided above).

Files included in this tutorial/code:

users.sql = This contains sql queries to make MySQL database and table

config.php = contains the database connection code (this file is included in all the php pages with the include() function)

index.php = contains the display part (displaying data from database)

add.html = contains form to add data

add.php = contains php code to add data

edit.php = contains php code to edit data

delete.php = contains php code to delete data

Download full source code: Create, read, update, delete in php and mysql

Cheers,

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The description is present in the code.. in comments :D I hope those comments are sufficient to describe the code. The database part is in the sql file named ‘database.sql’.

I have attached the code with this post. Download it and enjoy PHPing…

Download full source code: PHP code for add,edit,delete,login, and register

Cheers,

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