Articles

Joomla Development: Possible XML Filters

: Category: Joomla; 17 October 2013; 17 October 2013; Hits: 15680; Rating:

( 283 Ratings )

Applies to:

Joomla! CMS 2.5.x

Joomla Filter: Validation OnSave

INT Forces the value to be an Integer
UINT Forces the value to be an absolute number (-4.2 becomes 4.2)
FLOAT Forces the value to be a floating point value
BOOL Forces the value to be true or false
WORD Strips anything that is not letters (including numbers)
ALNUM Forces the value to be alphanumeric (Letters and numbers only. No special characters)
CMD Forces the value to be alphanumeric plus the following three special characters _ (underscore) . (dot) - (dash)
BASE64 Forces the value to be a base64 encoded the string. Note it does not encode the string, it simply strips characters that may not exist in a base 64 encoded string.
STRING Removes HTML
HTML Allows basic HTML
ARRAY Forces value to be an array
PATH Forces value to be a file path
USERNAME Forces value to only contain characters allowed in the selection of a Joomla username
UNSET Completely remove any input
RAW Allow any content
URL Forces content to be a URL
TEL Forces content to be a properly formatted US phone number

Disable User Registration in Joomla 1.5 - Configuration File

: Category: Joomla; 08 October 2013; 08 October 2013; Hits: 20838; Rating:

( 305 Ratings )

What?
A quick reminder on how to disable user registration in Joomla! CMS version 1.5.x without using the Joomla! CMS back-end panel.

Why?
Because we're having some corruption issues and simply using the Joomla! administrator panel to navigate to global configuration, does not work!

How?
It isn't in the configuration.php file prior to Joomla! v1.6.x but in the database.

Open the database to the Joomla 1.5.x website
Browse the table "jos_components" (or "#__components" where "#_" is the site table prefix. default is "jos").
Open the row where name="User Manager"
Set the value under params for AllowUserRegistration
- allowUserRegistration=0 to disable it.
- allowUserRegistration=1 to enable it.

Not Working?
Are you sure you are using the Joomla user component or a 3rd-party such as Community Builder or K2? If so, you're in trouble as you HAVE to use the joomla admin panel to edit the settings of the 3rd party components.

Things to Check if Joomla Password Reminder email not being sent

: Category: Joomla; 10 May 2013; 09 May 2013; Hits: 55158; Rating:

( 146 Ratings )

What?
A quick article on a frequent question I get asked. This refers to an issue within the Joomla CMS (version 2.5.x) where it fails to email users who reset their password.

How?
A few things to check:

: Category: Joomla; 07 May 2013; 07 May 2013; Hits: 46686; Rating:

( 979 Ratings )

- Applies to Joomla 2.5.x +, 3.4.x

What?
So I can't stand the way the default "Search" component in Joomla works. The default is to sort the results by popularity (hits) or by most recently added (depending on your version) which I have never seen in any other system.

I've googled and binged but could not find anything that documents how to bring it into line with other search systems. So here we go, hope this helps you.

Why?
I've created search systems for a plethora of other systems. The aim of this article is to enhance the Joomla search into par with Google and Wikipedia (or near enough).

How?

: Category: Joomla; 04 April 2013; 04 April 2013; Hits: 16594; Rating:

( 823 Ratings )

What?
This is a quick article on what I change the error page for Joomla websites to. I like a clean error page, for a demo visit http://www.joellipman.com/my_error_page.

Applies to Joomla 1.6.x, 1.7.x, 2.5.x

How?

Backup the file \templates\system\error.php
Create a replacement file called error.php including the below code
Change the message "The Page you are looking for..." to what you want.
Change the link "www.joellipman.com" to the "www.yoursitename.com".
[Optional] If you want the image that creates the shadow you can download it here. I put it in the folder \templates\system\images.

: Category: Joomla; 27 January 2013; 27 January 2013; Hits: 90079; Rating:

( 223 Ratings )

What?
Apologies for posting yet another article on how to access the Joomla Database using the Joomla classes but this is just a quick note for myself as a reference sheet. Plus the official documentation don't have enough examples in my view. Source: http://docs.joomla.org/ for v1.5.x and for v2.5.x

This article applies to Joomla 1.5.x, 2.5.x and 3.x.

: Category: Joomla; 20 December 2012; 11 February 2011; Hits: 21902; Rating:

( 780 Ratings )

What?
So this is a note to myself so that I have a checklist and can quickly update any extensions designed for Joomla 1.5.x and make these compatible with Joomla 2.5.x websites.

In the past, I have only ever changed the words <params> to <fields> but for more stability, there are a few more tweaks to do.

How?
For demo purposes we will be referring to a Joomla module called "mod_moduletoupgrade" in British English (en-GB). I don't think it actually exists in reality but you replace the name "moduletoupgrade" with whatever you're upgrading and follow the below instructions.

I'm also going on the basis tha.

: Category: Joomla; 19 December 2012; 19 December 2012; Hits: 51995; Rating:

( 450 Ratings )

What?
More for others than for myself, but this article is for those who do not have development/test environments of their Joomla website.

I have been doing this for years and still come across clients who have the one version of their website. They experiment on their customer-facing website and in most cases, they are paying for a hosting package which would allow them to have several copies of their website.

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