mod-ndb. Is it alive? - mysql

Does anyone know if mod-ndb project is dead now or what is going on? I need its functionality but their link to documentation is dead and last changes to source code were made two years ago. And if it's dead, is there something similar to make it possible to comunicate to MySql Cluster directly without sql? (I need to do that from nodejs, actually, that's why mod_ndb was perfect).

Seems like the mod-ndb project is unmaintained. The last code commit was in November 4th 2011.
mysql-js seems to be an maintained module (MySQL JavaScript) More information on MySQL-JS on this how-to:
http://www.clusterdb.com/mysql/mysql-cluster-with-node-js/

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Fix or Start Over (MS Access Database)?

I have sort of agreed to help out a small local community non-profit org with a database that was created for them many years ago. The original developer, along with his original uncompiled files are long gone, the current file has many problems, but since it is a .mde file I can't pull it apart to see how it all works. I do have access to the Tables and I can see what the Reports look like (just not how and where they get the data).
My feeling is that it might just be easier (and quicker!) to create a new version using what I can see in the original database as the basis for the new one. This way whatever problems they are experiencing will be resolved and all of the legacy stuff they no longer need/use will be removed. Plus, they will have a version that can be modified in the future even if I'm not around.
If you've had to deal with a similar situation how did you go about deciding which direction to head in? In other words, what are the typical considerations/traps I need to know about before taking on this adventure (other than it taking way more time and effort than I think it will)?
Thanks!
I'd first determine if big or minor changes are needed now or to be expected in the near future. If not, I'd try to find a way to keep the system alive.
On the other hand, you already provided some good arguments for setting up a new system that I agree with. I would add to that that is much more satisfying to do this. Almost always you wish you started from greenfield if you try to alter an old legacy system.
Point to considder, is that you might need to train the existing users to work with the new system.
Good luck!

Current status of dbslayer?

Just that I've been researching for SQL solution for NodeJS and MySQL, and saw a lot of good things about dbslayer. But it's been more than 4 days that I couldn't connect to both code.nytimes.com and www.dbslayer.org, hence neither could I install and try dbslayer, whereas I saw cherokee included dbslayer in itself. So I'm wondering if anybody know the current status of dbslayer development? Thanks in advance!
The official Github repository seems to be this one, what is indicated by this Tweet and the referenced tumlbr post. This also indicates that Derek Gottfrid was the main responsible person for the project, who posted on Twitter last time in october 2012 about this project.
Since the last changes at Github are multiple years old and there are practically no Tweets about this on Twitter anymore, I would call this project dead.

flex value objects with database

I know this question is vague, but I have a school project, which works with HttpServices that call to PHP-files to insert and retrieve data from a database. Now the teacher told me I have to work with valueObjects to work with the database, but I haven't received any further information. I can't figure out what to do...
I have a good sample app and tutorial for using Flex and PHP for database connectivity using valueObjects and zend-amf as the server on my blog, which should be a good starting (and maybe finishing point). The example has View Source enabled, and I have included all the php files that were used. I expect a good +1 for this:-)
http://bbishop.org/blog/?p=441
You should find a lot of information in the Flex In a Week video series on Adobe TV.
Probably the answer to all your questions and more.

Managing Code Written for learning [closed]

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I want to ask about the different techniques they used to remember various programming techniques. We go through various books and various online tips and tutorials we also get so many ideas from the code written by somebody else.
Now all these inputs are memorized or stored in some format so that it can be found easily when referred. Absence of such storage may result in rewriting the code or reinventing the wheel.
I use to create one Working folder where I keep all my trial code but sometime after few days / months since the code is not tagged or named properly its difficult to find it out again.
For Perl, I have a module I call staging.pm, and use staging; is a pragma in my code which allows me to use experimental, not fully developed code in my development. This developmental code will be placed in a branch called "staging" off of the user library directory. The main thing that the module does is put my staging directory at the head of #INC. Once my code is mature--if it ever is--it will be moved into my user lib directory.
As for scripts, they can be run from wherever they are and I use a directory named test off of the bin directory.
So that's kind of my approach. I don't know how useful that is for you.
It's like learning any other language or learning any other technique. When you read a book and you find it interesting you start associating what you are reading with real life situations and problems that you might have had before which the new learnt stuff will solve for you.
You might, after a couple of days or so forget what you have learned, untill you stumble upon the problem which you related to when reading the book or looking at the lecture. This specific type of memory is called something like association memory technique.
There are a lot of other different techniques to remember things by but a lot of them come down to relationships with other parts of what you already know.
Another example is Math which is something you force your brain to understand but once you quit using it on a daily basis you will slowly degenerate the math-genious-cells.
Programming for me at least is just another way to express myself and when i learn new features it's just a new way to express things that might not have been easy to do before.
Edit
I might have missunderstood the question.. did i?
Well, for me, when I am trying to learn, I focus on learning the approach to solve the program, rather than a technique. That is important to me. Also, with regular day to day programming some techniques become ingrained.
The other thing I do is to maintain a notebook with my notes in it, code snippets, comments, shortcuts I have learnt over the years. This helps too.
Recently I have taken to maintaining my notes in Evernote, this makes is easy to search for and tag.
For web, I use Delicious + Firefox plugin to store what I already read.
When looking for a solution to something I can't solve, I got used to ask / search here.
And for my own solutions, I try to create reusable components and remember in which project I solved what and eventually get back to it later when I need it.
Whenever you study one programming technique like java you always map the corresponding things with C++ and perl.Java and C++ remain same in more concepts.And better you store your working folder in your mails so that whenever you need you can download and have it.
You could try a program like Surfulater. I don't know how well it works with code samples, but I do know that the developer was (is still?) active on the Joel on Software forums, so I'm sure he could be contacted with any specific questions.
If you use Windows, you can use Google Desktop to index part of your harddrive, including your program snippets.
If you can recall just some of it, Google will find it.
(Spotlight does the same automatically on a Mac)
On Mac OS X, TextMate provides a near perfect solution to this problem. TextMate is a programming editor that offers support for hundreds of programming languages and is customizable via the bundle editor. Through the bundle editor, you can add any snippet of code that you may want to memorize, and appropriately categorize it under its respective language. You can also assign hot-keys or character sequences to invoke a snippet and copy it to your current editing context.
I believe that Notepad++ is a similar tool for Windows, but I am unsure if it is as customizable as TextMate.

How did you get involved with your open source community? [closed]

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It seems that the normal progression to join projects is to contribute for a while, earn the trust, then get accepted as a member of the community (i.e. having commit access).
Now, I already apparently know "the best way" of how to get involed, in a manner of speaking; this is not my question; what I was hoping to attain is: How did everyone else get involed? Surely not everyone has gone down the "find a project and submit patches" route - or have they? I dont happen to know anybody in the open source community, so I'm just itching to know...
Perhaps you already knew someone in a community and just fell into it? Maybe you were getting frustrated with some bug and started contributing regulary as a result? Maybe you did just spot a project on SourceForge...
Update:
It seems that the most common reason is simply scratching an itch, to quote singpolyma: "Looking for a project to contribute to is often not the right way." Instead, you should join the open source community by contributing to a project that you already know and use.
Important:
Please, please, please: Tell me about your specific experience, no general answers please. Also, answer only if you are either a project member or a patch contributor. Please do not give advice on how to join a community, this isn't the kind of answer I'm looking for. If you would like to give advice on joing a community, please answer in this other thread.
Great Answers:
Mark Harrison talks about Tcl, cx_Oracle, kap and orapig
singpolyma talks about DiSo and Greasemonkey
Pax talks about contributing to GnuCash because of his wife
Related:
How to get involved in an open source project
How Open Source Projects Survive Poisonous People (And You Can Too)
My personal anecdotes:
I got involved with the Tcl community when it was first starting out in 1991 or so. The mailing list and later the usenet newsgroup were pretty important to connect with people. I specialized in user evangelism and teaching, and eventually ended up writing two books about the subject. One of them is still in print after ten years:
http://www.amazon.com/dp/0201634740
Now I use a lot of Python, and really like the cx_Oracle package. Again I was active in the mailing list, and contributed a few patches.
I've made a couple of software packages available that I had written for work. By making them open source, I was able to get some nice contributions back, and since they were not the "secret sauce" of my employers at the time, they didn't mind sharing the code. The two most popular packages were
http://sourceforge.net/projects/kap/ The Kinetic Application Processor -- this was built when I was working on the China Internet backbone.
http://code.google.com/p/orapig/ - OraPIG, the Oracle Python Interface Generator -- it generated Python code to call APIs defined in the database, and includes an XML-RPC database interface.
Advice:
Instead of looking for projects to join, try contributing to projects you already use.
It's often difficult to jump into the "core" development, because (a) on a big project, that might be a pretty big chunk of code to understand, and (b) there are probably a core group of people already working on it.
So, suppose you like a certain piece of software and want to start contributing, you can start working around the edges. Here's a couple of concrete tasks that will help you to become integrated with the group.
write some test cases for bugs to add to the regression test suite.
browse through the bug database and find a bug to work on. This might be the best way to get into the core development.
look at the feature request database and see if there's a small task you can work on.
look for "user doc" requests... a lot of them involve writing example code which you can provide.
Good luck!
The way people normally get involved is:
you use the FOSS product in your day to day work
you notice a problem or a missing feature
you mail the maintainer to ask if this bug/missing feature is real
the maintainer says yes, this is a bug/missing feature
you decide to try to fix/add the bug/feature
you code like mad
you submit a patch to the maintainer
the maintainer laughs in or face or says "thanks very much!
If you repeat the last few steps a few times, the maintainer will probably give you commit access to the project's RCS repository, and then you can really become dangerous. But the bottom line is that it is up to you to do something i.e. write some code - merely being "interested" in a project is not enough.
I joined DiSo and Greasemonkey.
The best way I've found to get involved is to get in early in the life of the project, or just be very interested. With DiSo or the various github projects I'm on, it was the former, with my Greasemonkey contributions, the latter.
Looking for a project to contribute to is often not the right way. Use stuff and find out what you want to build/fix, then do that.
I did a little bit of patch work on GnuCash since my wife restarted work part-time recently after our kids were a little more grown up.
I would've rather had my eyes ripped out with a hot poker than re-install Windows but GnuCash was missing something that [a certain other accounting package] had so I told her I'd get it added.
As it turns out, they took my patch and made it a lot better before putting it in (to the point where maybe 1% of the final patch was my stuff) but at least we can now use GnuCash instead of that proprietary stuff. They were also incredibly responsive - from patch submission to patch availability was only a week or so and it was in the product three weeks later.
I also once investigated getting a patch into the process accounting in the Linux kernel but the effort required far outweighed my needs :-)
I don't contribute on a regular basis, more as-needed (find your itch and scratch it). There are some who make a hobby of it but I'd rather be spending my spare time with the kids and, unfortunately, my employer won't pay me to contribute elsewhere.
That last bit particularly galled me since:
the Linux patch would have greatly assisted our product (and a lot of others).
it was change in behavior of another of our products that degraded the usefulness of our product.
the solution was fairly simple, conceptually (the effort required was testing since a problem would have been high-impact [task switching] and very pervasive [everyone using Linux]).
it would have been quicker to code up the patch than the workaround we eventually implemented.
the workaround is a kludge (p'tooee).
now, nobody in the world has the benefit of our patch (including us).
What I did was pretty simple; I opened one.
I have been joined by one permanent developer, and other two who donate code behind the scenes. The project is in very early stages, so not many users have downloaded it.
What really helps an open source project is having a plugin architecture.
It's much easier to contribute a simple plugin for eg. a file format than to try to add something to the Linux kernel. This makes it a lot quicker and easier to build a community.
TODO: Please supply an anecdote.