Joomla 3.*

Joomla 3.*

• 3 ways to embed a video in a Joomla article

• Articles missing after exporting from a Joomla 3 database and reimporting them in Joomla 4

  Recently during a lenghtly upgrading process of an old Joomla 3 site to Joomla 4 I have run into an unusual issue. During the process of rebuilding/rebranding the site a large number of articles where added to the original site, and obviously they are missing from the new site. I imported articles directly in the database into the #__content table like I often did in Joomla 3 - a smooth process generally. However even the database looked ok, the new articles in Joomla 4 they were not visible.

• Column 'checked_out' cannot be null

  After upgrading from Joomla 3.* to Joomla 4.* you can have this error in various places:

  Column 'checked_out' cannot be null

• Creating Custom Joomla Templates with Matt Thomas

• Enable HTTPS and make your entire site secure

  Life is full of surprises. One of these days I got a job offering with a consistent budget, one of my former clients approached me to "make his site secure".  I said yes, but when turned out what he wanted in fact i had a surprise: he wanted nothing else, just to make the browser warning about "unsecure site" go away. He actually purchased a security certificate and hired someone to install it onto his server - with no success.

• Error: Invalid login during Joomla upgrade

  Today I had to upgrade an old, Joomla 2.5.7 site to latest Joomla, everything went out fine until I had to do the first critical step - the upgrade from Joomla 2.5.28 to Joomla 3.51. Did I mentioned that server has PHP 5.6.25 withouth possibility to upgrade - at least not on short term?

  OK, so, wasn't the best setup condition available, but usually this is not a dealbreaker.

  And BUMM, I have seen an old "friend", a popup saying:

  ERROR: Invalid login

   

• How to create custom 404 error page in Joomla 3

• How to detect Joomla version withouth having access to admin?

  Sometimes you need to find out the exact Joomla version for a website you don't own for a decent reason - like you are a freelancer and need to provide an estimation for a job on the respective site.

  Sure, you can ask the owner ;) but that's the easy scenario.

  Fortunately there are relatively easy - and legitimate - ways to find it out, unless the owner of the site hasn't blocked the access to this information. In my personal experience (believe me, I have some) this is rarely happening.

• How to Install Joomla 3.9.26 on Windows 10 in 2021 | Step By Step in Detail

• How to restrict a user to access only one component in admin

  Sometimes you need to allow a user to access and manage only one (or a few) Joomla! component in the backend. This is quite easy to set up, you need to use cleverly the ACL sytem Joomla has allready in.

• How to use RS Forms Pro for Joomla! 3 and Joomla! 4

• I want the print and email icons back as in previous Joomla!

  A client called me one of these days with this request. He told me, that what was once a simple one click action to print, email or edit an article in frontend in Joomla 1.5 has became an uncomfortable, two click  process, which in some devices proved to be increasingly difficult. After a bit of digging around I found for him an easy to implement template override which make him happy.

• Installer tabs missing after upgrade to Joomla 3.6

  After upgrading to Joomla 3.6 I had a nasty surprise - in the Joomla Installer the tabs - Install from file,  Install from folder etc.., all but the Install from Web - where all gone. Of course, nothing found on the web: this happens when you are an early adopter. But I discovered the "fix" accidentally, on my own.

• Joomla 3 Tutorial #4: Installing Extension
• Joomla 3 Tutorials: How to use the Tags Menus

• Joomla 3.x - How to create a multilingual site in 6 steps

• Joomla 3x Drop Down Submenu

• Joomla display a blank page containing "Error" string

  ... and does this randomly, both in frontend and backend, sometimes showing the correct pages, and rarely an error message saying, that "table '#__session' is marked as crashed and last (automatic?) repair failed".

• Learn Joomla 4 Power Tips - Upgrading to Joomla 4

• VirtueMart invoice overrides don't working?

  Recently a co-worker asked my help for a seemingly trivial problem, he complained that whatever he does, the template overrides for the invoices done by the book aren't working. Well, the cause is simple - and is not really qualifying as a hack for non-rookies, but since the solution involves deleting files in Joomla's filesystem, the procedure can harm your site. So, put your helmet on, fasten your seat belt, and do a backup.