Fork me on GitHub

Status of 1.4

In my previous post, I was too optimistic about what needed to be done in order to get ImpressCMS 1.4 finished for global consumption. Because we want to be compatible with as many PHP 7 versions as possible, some PHP libraries will need to be updated as well.

One of the libraries that has been particularly problematic every time we touched it, is Smarty. We're still using Smarty 2, but the implementation we inherited from previous ImpressCMS versions is very much intertwined with the core. Combine that with the fact that a problem in Smarty usually takes us to a totally blank screen, and you have a hard to debug library upgrade on your hands.

Combined with holiday and heatwave periods, pace has been slow for now. I expect this to continue a for another few weeks, but I will try to finalise some tasks every few days.

Topic


update 8 june 2019

I've had some interference by Life (tm) recently : either it was scorching hot, which didn't really tempt me to sit in front of a computer and sweat just because of the temperature, either we were having heat thunderstorms, and I was battling a leak in our roof. all of those aren't conductive to development sadly

That period seems to be over now (the leak is fixed, and the sun seems to be burning elsewhere), so now I can start finishing the 1.4 release.

ImpressCMS 1.4

As a matter of fact, the only thing that still needs to be done (and that is holding up that release of course) is the update procedure. The 1.4 release removes the banners functionality in the core, and replaces it with the banners module. That is a migration script that needs to be tested.

We're celebrating Pentecost tomorrow, and that means that we have a holiday on monday. Normally, I should have the 1.4.0 beta release out by monday evening to test the migration routine.

ImpressCMS 2

Not much progress on the composer integration until now. I really want to get this up and running, but composer is not easy to understand nor to debug.

Topic


Re: Forum bugfix

Thank you for the confirmation! As it happens more with bugs that don't appear al the time to everybody, it was difficult to find out where the issue was, and during the iterations where we tried to fix the bug, we weren't 100% sure that it was well and truly squashed.

Given that you consistently had the problem, and you confirm now that it no longer affects you, I'm more confident that the bug is gone.



Re: Defining modules and plugins in a composer world

yeah... probably that is so called.



Re: Defining modules and plugins in a composer world

Interesting point, in a way we would use events to do some kind of observer pattern, am I correct?



Re: Defining modules and plugins in a composer world

Probably if we could fix our events system we could make modules do stuff that we trying todo with plugins. F.e. module that can use sitemap functionality could trigger some events that could be handled by sitemap module. If there are no such module, these events will be ignored.



Re: Forum bugfix

I guess it's all good now :)



Defining modules and plugins in a composer world

in all ImpressCMS versions until now, (1.4) we are basing ourselves on the file location to determine whether a folder contains a module, a theme, a translation or a plugin. Autoloading and composer have allowed us to look into changing that concept a bit.

With composer, it is perfectly possible to change from one library to a fork, while keeping the same development interface. All packages are bundled under the 'vendor' folder now, without indication what type of library they are.

In the case mentioned above, it could be that that fork is more actively maintained, or contains specific code that didn't make it into the main library. Moving to another maintainer of the library makes that the file location of your library will change under 'vendor'. Fortunately, autoloader takes care of the discovery aspect for you : you just tell it that you need class X, and the autoloader matches that with the file that needs to be loaded to make class X available, without you needing to knpw the name of the file on beforehand.

If we take the same concept and apply it to modules, themes and plugins, ImpressCMS still looks in specific locations for certain addon types. we look for modules by reading the icms_info.php files in the subfolders of the 'modules' folder, we look for themes by checking if there is a theme.html in te subfolders of 'themes', and so on for translations and editors.

One place where this is problematic, is with plugins. For example, the sitemap module has plugins for a long list of external modules, to help it understand the content of those other modules, and construct a correct sitemap from them. At the moment, those plugins are bundled with the sitemap module, and they are stored in a subfolder of the sitemap module folder. 

That poses a problem if we want to add a plugin for the sitemap module from another module without resorting to copying files from one location to another, or having specific 'registration' routines. Here, the PHP Reflection API comes to our rescue. It allows us to scan all the classes in the system, and identify the class interconnexions. Which class is a subclass of ipf_module, for example, and which class is a subclass of ipf_module_sitemap. Have a look at StackOverflow for an example.

Perhaps this is worth looking into for future versions, to make management of the different addons and other packages easier and decoupled from the file system.



Happy Easter!

Easter holidays, so work has been a bit more slow. I did manage to finish the German translation in transifex this evening, I'll upload a complete translation pack tomorrow.

I did start to rework my solution to plugin to the composer library, but I got lost in the complexity of what I'm trying to get. I think I'm aiming too high, certainly for a first version Work continues on that, because it is one of the remaining new funtionalities that needs to go in before we can start looking into producing beta versions of the 2.0 branch - feature complete, but perhaps more bugfixing needed. My new approach is to let the design patterns on the side for the moment, and just get something working first. We can refactor the hell out of it afterwards.

Because nobody understood why we work in the 'retro' branch, and because those reasons date way back, Mekdrop has taken on the task of migrating our working branch for ImpressCMS 2.0 to the 'master' branch.



Re: Working on ImpressCMS - micro-blog

I've installed the Chromium-based Edge browser on my machine, and it works like a charm. I know people will look at me sideways when I say that I didn't have any problem with the Edge that was included in Windows 10, I'm generally not such a plugin user so their initial lack didn't pose a problem to me. The chromium-based Edge feels faster and more responsive, and it remains very much Edge. The fact that there's a Google-sponsored Chromium engine underneath hasn't changed that much.

I mention this because I tested our site (of course) with Chromium Edge, and noticed that Edge now also suffers from ticket #100 in ImpressCMS 1.3. Time to get that sorted out.

David L asked how he could test out or current state of ImpressCMS 2.0, and it turns out that the documentation for that is severely lacking and/or out-of-date. I've given him a short roadmap on how to get a ImpressCMS 2.0 alpha 7 site up and running on his shared hosting, but it's time I wrote some documentation.

I discovered this morning when I was on the train going to Brussels that my work on the composer integration was more or less useless because I was re-inventing the wheel. Composer has a class 'installer' that takes care of most things for me. 

I'm looking into resurrecting the API documentation for 1.3 and 2.0, and I've looked into Fabien Potencier's SAMI to do so. I know, it's been discontinued, but I still have to find a tool that allows me to do a command-line crawl directly in my Github repository. I have some issues with git telling me that my repository is not clean in the 1.3 branches, so I'll need to do some spring cleaning before that can be published.



Working on ImpressCMS - micro-blog

Hi,

I'm starting this thread to give you an idea about what I'm currently working on, without needing to fire up another module or another external service to do so. No guarantees about the frequency though.

No guarantees about the content either, except that it will be ImpressCMS-related, but I might ot limit my contributions here to pure development aspects.



Re: Adding data table plugin to improve tables

Hi @Eyekeeper, is there any place where we could check out your datatables integration? I would love to add it into the ImpressCMS 2.0 betas



Re: a test thread

yep,this is a test thread. Still nothing that went wrong. We'll have to see with some other user accounts perhaps.



a test thread

I'm just testing the stuff to see if I can get another error that kicks in on the forums. I hope it doesn't, that will mean I've fixed the case for the version that we are using on the site.

 

Perhaps later we'll see into rewriting the forum module more thoroughly.



Re: Forum bugfix

I tried some more fixes, because the error didn't seem to be resolved in all cases.



Re: Forum bugfix

Visibly the fix wasn't working as I thought. It's a difficult fix because the problems isn't there the entire time

When you look at the error message, there is an error in the SQL because one of the keys in the object seems to give a totally nonexistent value. I tried to fix it now in the old Art framework, but I'm not sure if my fix is working ok. Let's test



Forum bugfix

Hi, I did some investigation to the errors we are experiencing from time to time on the forum, and I think they are now resolved.



Re: Adding data table plugin to improve tables

I looked around, and stumbled upon this page : https://bitsofco.de/async-vs-defer/ where the author explains a bit what the different options are, and when you can use what.

Putting scripts at the end of the page to make the browser take them into account last is an option. But that will not always offer the biggest speed improvement, because you will still be loading the files one after the other. If the script in question has no dependencies, you could use the "async" keyword, to indicate to the browser that it can load the javascript file in parallel with parsing and downloading the HTML.

In the end, lesser files to download, even if they are bigger, is also an optimization. So you could also consider using tools like webpack, to reduce the size and the number of files you include in your page as an extra optimisation.



Re: Adding data table plugin to improve tables

This may be related to something I was just hashing over for page speed optimization. Google's Page Speed Insights suggests changing the parsing and execution of scripts and stylesheets and putting them only just before they are needed. Placing script tags and stylesheet tags in the header of a page actually stops page rendering until they are downloaded and parsed. See this info page from Google.

I'm experimenting with making all the javascripts 'defered' to start with. Some of this can be done in the theme, and some of it has to happen in the core - the $icms_module_header adds scripts and stylesheets like linkexternal.js and all the jQuery script files.

Anybody know of any reason NOT to defer their execution until the end of the page rendering?

Steve Twitter: @skenow Facebook: Steve Kenow



Re: Adding data table plugin to improve tables

Datatables integration would be great, so please do a PR for 2.0 once you have something that works

The problem that you are experiencing is that the data is managed in 2 worlds : the javascript world and the PHP world. The javascript world (datatables.js) works with the data that you give it. In a simple situation, the basic configuration of datatables works fine : you feed it all the data, and everything is managed inside the datatables implementation, on the client browser.

As you found out, that is limited to small datasets. Once you get into the few hundreds, the browser slows down considerably. The trick is to plugin PHP functionality to replace some of the functions that datatables does in the browser, and shift the workload as much as possible to the server. Sorting and such as well, because if you load only 15 elements inside of datatables, in its standard configuration, it will only work with those 15 lines, giving very funny results, that will be plain wrong

in my opinion, you will need to write an integration for the loading, updating, sorting, searching of data from datatables within ImpressCMS. Once you have that, the sky will be the limit




 Top