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• Best language or tool for automating tedious manual tasks

  - by Jon Hopkins

  We all have tasks that come up from time to time that we think we'd be better off scripting or automating than doing manually. Obviously some tools or languages are better for this than others - no-one (in their right mind) is doing a one off job of cross referencing a bunch of text lists their PM has just given them in assembler for instance. What one tool or language would you recommend for the sort of general quick and dirty jobs you get asked to do where time (rather than elegance) is of the essence? Background: I'm a former programmer, now development manager PM, looking to learn a new language for fun. If I'm going to learn something for fun I'd like it to be useful and this sort of use case is the most likely to come up.

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• Maintainability of Boolean logic - Is nesting if statements needed?

  - by Vaccano

  Which of these is better for maintainability? if (byteArrayVariable != null) if (byteArrayVariable .Length != 0) //Do something with byteArrayVariable OR if ((byteArrayVariable != null) && (byteArrayVariable.Length != 0)) //Do something with byteArrayVariable I prefer reading and writing the second, but I recall reading in code complete that doing things like that is bad for maintainability. This is because you are relying on the language to not evaluate the second part of the if if the first part is false and not all languages do that. (The second part will throw an exception if evaluated with a null byteArrayVariable.) I don't know if that is really something to worry about or not, and I would like general feedback on the question. Thanks.

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• Authenticating users for a website

  - by MCB

  I'm working on a website and I want to validate that an individual is an employee at one of a large number of companies (probably using their company's email address, which I don't know before hand). The idea being some users are the general public and others are from these companies. And I need some way to authenticate that the users claiming to be employees are being honest while still having a friendly enough UI. I did an informal survey of people I know and the domains and emails will match in a majority of cases but they might not always match exactly so you might have a company with a website foo.com and an email [email protected] (although foobar.com did redirect back to foo.com). And while I can easily check that I'm not sure what other variations might be out there (maybe fooLA.com and email [email protected], etc.)

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• Is it good practice to use functions just to centralize common code?

  - by EpsilonVector

  I run across this problem a lot. For example, I currently write a read function and a write function, and they both check if buf is a NULL pointer and that the mode variable is within certain boundaries. This is code duplication. This can be solved by moving it into its own function. But should I? This will be a pretty anemic function (doesn't do much), rather localized (so not general purpose), and doesn't stand well on its own (can't figure out what you need it for unless you see where it is used). Another option is to use a macro, but I want to talk about functions in this post. So, should you use a function for something like this? What are the pros and cons?

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• Is there a way to prevent others to steal your open source project and use it to make a profit?

  - by Jubbat

  This might seems like a silly question to ask, but I can't really figure out the answer. The title pretty much says it all. Let's say you have an open source music player, along comes someone, copies it, adds features, modifies the interface, etc and sells it. Nobody would find out. So how does it work? Related: I'm working in some projects myself to make me more employable, so employers can take a look at my code but with some of them I don't feel like uploading them to an online repository, ie sourceforge, and make them visible for the general public.

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• A New Closed Source Viral License

  The copyleft provisions of the GPL (GNU General Public License) require that any changes or additions to a GPL licensed work must itself be licensed under terms that adhere to the GPL. Critics of these copyleft provisions have derogatively labeled the GPL as a viral license. Such criticism points out that any code that seeks to incorporate GPL licensed code must itself adhere to the terms of the GPL, thus potentially infecting other code with its restrictions. This has caused many developers of...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• What does mathematics have to do with programming?

  - by Rory

  I just started a diploma in software development. Right now we're starting out with basic Java and such (so right from the bottom you might say) - which is fine, I have no programming experience apart from knowing how to do "Hello World" in Java. I keep hearing that mathematics is pertinent to coding, but how is it so? What general examples would show how mathematics and programming go together, or are reliant on one another? I apologize of my question is vague, I'm barely starting to get a rough idea of the kind of world I'm stepping into as a code monkey student...

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• How Orchard works

  I just finished writing a long documentation topic on the Orchard project wiki that aims at being a good starting point for developers who want to understand the architecture, structure and general philosophy behind the Orchard CMS. It is not required reading for anyone who only wants to write Orchard modules and themes but hopefully it will help people who want to evaluate the platform and start writing patches. Read it here: http://orchardproject.net/docs/How-Orchard-works.ashx...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Potential issues with multiple home pages

  - by Maxim Zaslavsky

  I have a site where I want to have two different home pages: a general description page for anonymous users, and a dashboard page for logged-in users. I am debating between two implementations: Both pages live at / The page for anonymous users is located at / and the dashboard is at /dashboard, with automatic redirection between them based on whether a given user is logged in (e.g., if you're logged in and navigate to /, you are redirected to /dashboard. Is it cleaner to have both pages use the same URL or separate URLs? Also, I imagine that choices for that question will affect the following: Caching: the anonymous page would be completely cached, while the logged-in page would not be cached at all (except for static resources). This could lead to issues with server caching, request speed, and UX (such as if one version of the page is cached in a user's browser when the other version should be displayed, instead). SEO: how would search engines react to such canonical URLs? Load time (due to redirects or to the server having to always reevaluate which page to display)

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• Hyperion Smart View Assistance

  - by p.anda

  (in via Akhter) Seeking more information or assistance with Hyperion Smart View?  The Oracle Technology Network (OTN) is a great first place to "stop-by".  Here the site provides access to the latest installer, general product documentation as well as Whitepapers, "Whats New" and "Oracle by Example" tutorials: OTN: Overview | Downloads | Documentation | Tutorials  For the latest documentation including Readme, New Features, User's Guide, Developer's Guide and Accessibility Guide visit: Oracle Hyperion Smart View for Office Documentation Release 11.1.2.5 Several "My Oracle Support" Knowledge (KM) Articles are available including: OBIEE 11.1.1.7 - New Features And Recommendations For Working With Microsoft Office [ Doc ID 1558070.1]- How to Integrate OBIEE with Microsoft Office Using Oracle Hyperion Smart View For Office [ Doc ID 1576336.1] - How To Create New Report From Scratch Within Excel Using Smart View [ Doc ID 1576596.1] These along with additional KM articles are being indexed in a Master Note - to keep up to-date with new articles bookmark this index page at: Master Note For Oracle Hyperion Smart View For Office Issues in OBIEE Doc ID 1589028.1

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• Code review versus pair programming

  - by mericano1

  I was wondering what is the general idea about code review and pair programming. I do have my own opinion but I'd like to hear from somebody else as well. Here are a few questions, please give me your opinion even on some of the point First of all are you aware of way to measure the effectiveness of this practices? Do you think that if you pair program, code reviews are not necessary or it's still good to have them both? Do you think anybody can do code review or maybe is better done by seniors only? In terms of productivity do you think it suffers from pairing all the times or you will eventually get in back in the long run?

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• Weird graphical errors in console and on computer shut down

  - by Mark A.

  I am all new to Ubuntu (and Linux in general) and I am experiencing some strange graphic on my screen. Console #1 (ctrl+alt+f1): Exactly the same happens on all the other consoles (2-6), and the consoles don't seem to work. And I see the same when I hibernate or shut down my computer, but not when I suspend it. I was thinking that it may have something to do with the SiS 671 video driver work around that I use? http://ubuntuforums.org/showpost.php?p=11476910&postcount=773 Any ideas how to fix this?

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• Removing applications that were not installed by the software center

  - by brian

  I am new to Linux in general and Ubuntu is the only distro I have used (about three months)..... I have installed some applications through WINE ,they work great, but now I want to uninstall them... I have used the WINE uninstall option (application-Wine-uninstall) but they still appeared in the WINE text box as did their icons on the desktop... I uninstalled wine through the software center thinking the application running in wine may be deleted also, however it doesnt appear to be the case..... How can I delete software (using line commands preferably, but GUI instruction would be fine) and if I am using line commands how can I see what name and application is saved under.... thanks

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• Oracle OpenWorld Update -- Scaling Infrastructure to Meet Business Growth: A Coherence Customer Panel

  - by Ruma Sanyal

  Today being the Monday of OpenWorld is packed with great content and sessions. I have already blogged about the general session by Ajay Patel and the classic Cloud Application Foundation roadmap and strategy session by Mike Lehmann. But we will be remiss if we don’t list the customer panel for Coherence. Come listen to customers spanning a wide variety of industries such as consumer goods, railways, and agricultural biotechnology discuss how Oracle Coherence enables business growth, cost cutting, and improved customer experience. You will learn how Coherence helps scale services cost-effectively, improve performance, and assure service availability in both on-premises and cloud deployments. Each customer will present details of their specific use cases, benefits and war stories of developing, deploying and managing some of the largest data grid deployments in the world. The session will be moderated by Cameron Purdy, VP of Development, and Mr. Coherence himself J For more information about this and other Coherence sessions, review the Coherence Focus on document. Details: Monday, 10/1, 12:15 p.m. - 1:15 p.m., Moscone South Room 309

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• Building a chat-like functionality in iOS

  - by Mani BAtra

  I was planning to implement a functionality wherein a user can send data to a friend of his, similar to sending messages in WhatsApp. This is how I broke down the problem : The user registers for the app. This equates to user info being stored on a dedicated server. With the phone number as the key identifier. The user selects the friend to send a message to and pushes the data. The receiver polls the server regularly and acknowledges that the data has been received. I did a little bit of research and am thinking of implementing this using the XMPP Framework for iOS. Any pointers as to is this the correct implementation or some advice in general?

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• Why am I getting messages from cloudfront in my error log?

  - by JK01

  I frequently have messages like this in my websites error log: "Script error.". URL: https://e3m4drct5m1ays.cloudfront.net/items/loaders /loader_21.js?pid=21&systemid=13504281c5a501837196c23300f84e66&aoi=1327214632& zoneid=16620&cid=HK&rid=Hong%20Kong%20(general)&ccid=Kowloon&dma=0. Line number: 0 Error name: Stack: Now I don't actually know what cloudfront is or what it does. And I do not refer to this script in my site. So why would I be getting js error logged as if it was a script being run on my own site? This is using elmah logging.

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• Where do you put scenarios on a scrum board?

  - by user1043825

  So traditional scrum board looks something like this Backlog | Story notStarted inprogress Done story 1 Story1 tasks Story 2 Story2 tasks Story .. Story n Epic x Epic x+1 However in general a story has many scenarios and when working with BDD you want to write each scenario for a story as Given, when and then. Also the scenarios don't belong in the notstarted column, inprogess or Done as a scenario is not a task. So you realize that a scenario/s should have their own column between "story" and "notstarted", as a scenario can have many task to be considered done. If you are going to build your task from scenarios then why would you need the story on the scrum board in the first place, maybe they should be left in the backlog. Some people put scenarios on the back of each story. This is a on going debate in my team and I wanted to see if anyone has solved this differently. Cheers!

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• Basics of ERP for dummies

  - by DarenW

  A situation has arisen where (if I don't scream and run away) I will be involved in an ERP system. This project will be using OpenERP specifically. My background is entirely science/engineering/music/games/art/whatever. I've never set foot in the realm of business systems or anything describable with the word "enterprise". What is a good introduction to the whole ERP concept, OpenERP and business systems in general suitable for those with flat zero experience in that world? The ideal intro would explain, from no assumptions, what the main ideas are, terminology, they style of work and thinking of people in that world, and maybe some concrete suggestions how one can tinker around with a copy of OpenERP to gain basic familiarity.

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• How can I store post rankings that change with time?

  - by Daniel Fein

  I'm trying to learn how to code a website algorithm like Reddit.com where there are thousands of posts that need to be ranked. Their ranking algorithm works like this (you don't have to read it, its more of a general question that I have): http://amix.dk/blog/post/19588 Right now I have posts stored in a database, I record their dates and they each have an upvotes and downvotes field so I'm storing their records. I want to figure out how do you store their rankings? When specific posts have ranking values, but they change with time, how could you store their rankings? If they aren't stored, do you rank every post every time a user loads the page? When would you store the posts? Do you run a cron job to automatically give every post a new value every x minutes? Do you store their value? Which is temporary. Maybe, until that post reaches its minimum score and is forgotten?

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• How to remove permanently those error prompts while using openbox gnome?

  - by YumYumYum

  How to remove permanently those error prompts while using openbox gnome? Such as: update ubuntu latest release, this kind of errors etc, how to permanently disable them so that it does not show in front of my presentation. Follow up: a) How do i kill that screen shot error box? $ cat /etc/default/whoopsie [General] report_crashes=false $ apport-cli *** Send problem report to the developers? After the problem report has been sent, please fill out the form in the automatically opened web browser. What would you like to do? Your options are: S: Send report (69.7 KB) V: View report K: Keep report file for sending later or copying to somewhere else I: Cancel and ignore future crashes of this program version C: Cancel Please choose (S/V/K/I/C): I b) How do i kill that update notification dialog box? $/etc/xdg/autostart# vim update-notifier.desktop #NoDisplay=true NoDisplay=false :wq $ cat update-notifier.desktop | grep NoDisplay NoDisplay=false No more disturbing popup's now.

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• Static GitHub powered blog engine

  - by Daniel Cazzulino

  Blog engines were the new &quot;cool thing to write&quot; after the fever of writing a new DI framework was over. It was kinda like the new &quot;hello world++&quot; example. Almost every single engine uses a database of some sort to keep posts and comments. Almost every one is not leveraging the web as a consequence ;) I was intrigued by the possibilities that a flexible and general-purpose hosting solution like Github could offer for a static blog engine: basically keeping plain markdown/HTML/razor/WLW/whatever files that through a publish/build time process generate static files that pass for a &quot;blog engine&quot;. GitHub even supports custom domain names, so why not? Such an &quot;engine&quot; would have a number of benefits: Plain CSS styling Arbitrary JavaScript Leverage the web infrastructure (caching, CDNs, etc.) ...Read full article

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• C#4: Why does this static field always get initialized over-eagerly?

  - by TheSilverBullet

  I am looking at this excellent article from Jon Skeet at this location: http://csharpindepth.com/Articles/General/Beforefieldinit.aspx While executing the demo code, Jon Skeet says that we can expect three different kinds of behaviours. To quote that article: The runtime could decide to run the type initializer on loading the assembly to start with... Or perhaps it will run it when the static method is first run... Or even wait until the field is first accessed... When I try this out (on framework 4), I always get the first result. That is, the static method is initialized before the assembly is loaded. I have tried running this multiple times and get the same result. (I tried both the debug and release versions) Why is this so? Am I missing something?

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• Mythbusters- Programming/hacking myths [closed]

  - by stephen776

  Hey guys. I am a big fan of the Discovery show Mythbusters, as Im sure some of you are as well. I have always wanted them to do an episode on programming/hacking. They get a lot of their show ideas from fans so I though we could compile a list of possible myths to bust. Lets hear your ideas! (sorry if this is not appropriate, close if necessary) Edit: I am not necessarily looking for subjective "This is what I want to see" answers. I am talking more along the lines of interesting computer/programming/hacking stories that would appeal to a general audience. I do not expect them to do a show on "Whats faster i++ or i + 1".

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• What algorithm(s) can be used to achieve reasonably good next word prediction?

  - by yati sagade

  What is a good way of implementing "next-word prediction"? For example, the user types "I am" and the system suggests "a" and "not" (or possibly others) as the next word. I am aware of a method that uses Markov Chains and some training text(obviously) to more or less achieve this. But I read somewhere that this method is very restrictive and applies to very simple cases. I understand basics of neural networks and genetic algorithms(though have never used them in a serious project) and maybe they could be of some help. I wonder if there are any algorithms that, given appropriate training text(e.g., newspaper articles, and the user's own typing) can come up with reasonably appropriate suggestions for the next word. If not (links to)algorithms, general high-level methods to attack this problem are welcome.

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• How to reset the Xorg / xserver?

  - by thomas

  xserver keeps crashing on my general user account both in unity 3d and 2d. It doesn't do it on the guest account. That's why I want to reset / rollback everything xserver related, hoping this is going to fix it. Most answers on this involve sudo dpkg-reconfigure xserver-xorg. However, this does nothing for me (generates no output) and I read in other forums, that it's deprecated. So, what's the current way to reset all xserver / xorg options; what's the alternative to sudo dpkg-reconfigure xserver-xorg ? Thanks Edit: X crashes during work, not before login or so. And the effect of a crash is, that I get thrown out of the session, not a freeze or machine crash.

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