Basically you've woken up this morning, visited your website, and all your K2 articles are gone !!!!

If you login to your Joomla! administration panel (back-end) and look under k2 items, you should get the following error:

Warning: Invalid argument supplied for foreach() in /home/public_html/administrator/components/com_k2/views/items/tmpl/default.php on line 80

If I went to K2 Comments, I'd get an additional error:

Warning: Invalid argument supplied for foreach() in /home/public_html/administrator/components/com_k2/views/items/tmpl/default.php on line 80

Warning: Invalid argument supplied for foreach() in /home/public_html/administrator/components/com_k2/views/comments/tmpl/default.php on line 145

As the instructions to installing a new payment module in Virtuemart for Joomla! I've done this video showing how I apply it to my demo site.

As an IT professional, I feel that both OpenSource and Commercial applications have their benefits and neither should go.  My day job doesn't involve any Joomla! material but has many Content Management Systems (CMS) commercial equivalents. 

I use any donations to justify working on Joomla! specifically; but like to add things I learn along the way :c)

Kind Regards,

Joel Lipman

Thought I'd put this error in here and how I fixed it. Basically because firstly I don't want to have to create an account on someone else's forum just to post my answer and secondly because my solution is a "cowboy fix" rather than the other intelligent solutions on the web.

The issue was that I was building my first Joomla 1.5 component and getting the below error if I put in a menu:

Warning: implode() [function.implode]: Invalid arguments passed in /home/.../public_html/includes/router.php on line 325

Where "..." is the path on your server.

I don't usually write an article on another site but I came across it and rather than just add it to my weblinks section, I thought I'd give it a little more credit.

"Motive is a web design and development agency based in Wellington, New Zealand providing consultation, website design, development and usability evaluation services."

Their website has initiated a Web Definition Glossary (there are others but this one's got that "kiwi" approach)

Well I find myself again the dummie of the Internet.  I basically came across this error and STFW'd for ages following complex T-SQL Timestamp conversions but to no avail.  Not saying that you shouldn't try their solutions but just check you haven't done this silly mistake.

I'm only guessing the same error would happen in Report Builder 2.0 which I've stopped using as my day job wants us to use Business Intelligence Development Studio for all our SQL Server Analysis Service (SSAS) and Reporting Service (SSRS) projects/solutions.  The features and interface are very similar when developing reports though.

The error I'd get was

An error occurred during local report processing.
An error has occurred during report processing.
Cannot read the next data row for the dataset DataSet1.
Conversion failed when converting date and/or time from character string.

Following up on my article on correcting disappearing headers, a further issue with our web-report is that even an export to Excel (Data Only) from Crystal Reports 9, created extra columns.  This issue could not be replicated on the client machine (ie. from my workstation).  I would have to upload the report to the server, configure the web application to use the newly uploaded report, export to a Crystal Report, which in turn we export to Excel:

Note that as this is from within a web application, there are no extra options or dialogs to select.  The export had to work from this point on.  I can't take any credit for the below as it was copied from http://hosteddocs.ittoolbox.com/ST030504.pdf.  A "Crystal Decisions" documentation.

If you've been to the point where you're exporting a report to Excel, and only some of the column headers appear, then try this:

I googled this for ages and found different suggestions here and there but none of them produced consistent results.  One solution was to untick "Simplify page headers" on the Excel Format Options when you export the report.  Because our report is exported via a web-based system, this extra dialog doesn't appear when our users export their reports.  Not that it solved it as only some different headers appeared on the exported report when we followed that suggestion.

Consider the following report in design view, only the circled headings would appear on the exported report:

I need to often be reminded of how to calculate a percentage.  The context here is that I want a progress bar in one of my programs.

(Progress So Far / Total Progress Units) * 100 = %
or
(Net Amount / Gross Amount) * 100 = %

eg. (12 steps / 30 steps) * 100 = 40%   ie. 12 steps of 30 is 40% progress
eg. ($8 / $10) * 100 = 80%              ie. $8 of $10 is 80%

Source: http://en.wikipedia.org/wiki/Comparison_of_web_browsers

Intro

I know there are a lot of articles on the WWW detailing this process but none of them really worked for me.  I recently changed job and no longer have all my test machines at work.  Instead I only have the one workstation :eek  Still I've been asked to test some web applications (???) so I had to find a solution to suit me.  I'd done this before IE7 (so a long time since).

My office workstation setup for this is:

• HP CMT DC7900
• E5300 @ 2.60Ghz
• 2Gb RAM
• Windows XP Professional SP2 
• Internet Explorer 7

As you can tell, not the most up-to-date but unfortunately I need to stay near to my customer base and match their setups as closely as possible.

Basically I thought that the regional settings of a report generated using Report Builder 2.0 on a MS SQL Server 2008 instance were dependent on either the server or the client machine.  Realised that this was actually specified in the report. Here's a quick note on how to set Dates and Times used in parameter fields to UK format (dd/MM/yyyy).