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  • Apache, Rewrite Rule and Directories

    - by milo5b
    my sites-available/ file looks something like the following: <VirtualHost *:80> ServerAdmin webmaster@mysite ServerName mysite.co.uk ServerAlias www.mysite.co.uk DocumentRoot /home/mysite.co.uk/htdocs/ <Directory /home/mysite.co.uk/htdocs/> Options -Indexes FollowSymlinks MultiViews AllowOverride All Order allow,deny allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/mysite.co.uk/error.log LogLevel warn CustomLog ${APACHE_LOG_DIR}/mysite.co.uk/access.log combined </VirtualHost> In .htaccess (in the htdocs/), I have (amongst others) the following rewrite rule: RewriteRule ^enquiries$ /enquiries.php Somehow I have also a directory named "enquiries" (/home/mysite.co.uk/htdocs/enquiries/), and when I hit the url "www.mysite.co.uk/enquiries" I get: HTTP/1.1 301 Moved Permanently Date: Mon, 10 Dec 2012 18:53:37 GMT Server: Apache/2.2.16 (Debian) Location: http://www.mysite.co.uk/enquiries/ Vary: Accept-Encoding Content-Type: text/html; charset=iso-8859-1 And a Browser would display the directory's content. Now, I could easily rename the folder and get it sorted, but I would like to understand what's going on here. What would be the correct way to configure Apache in a way that it wont behave this way, and instead would listen to the Rewrite Rule? If I did not explain myself clearly, please feel free to ask more questions, I'd be happy to answer them. Thanks!

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  • Slides and Pictures from PowerShell Saturday Columbus 2012

    - by Brian Jackett
    On March 10th, 2012 the first ever PowerShell Saturday conference took place in Columbus, OH and I couldn’t be happier with the outcome.  We had 100 attendees from 10 different states (the biggest surprise to me) come to see 6 speakers present on a variety of PowerShell topics: introduction, WMI, SharePoint, Active Directory, Exchange, 3rd party products and more.      A big thank you also goes out to a number of people. Planning committee Wes Stahler, lead organizer of PowerShell Saturday Columbus, president of Central Ohio PowerShell User Group Ed “Microsoft Scripting Guy” Wilson Teresa “The Scripting Wife” Wilson Ashley McGlone Brian T. Jackett (myself) Speakers Ed Wilson Ashley McGlone James Brundage Trevor Sullivon Daniel Cruz Volunteer Lisa Gardner, fellow Microsoft PFE volunteered her time on a Saturday to assist with smooth operation of the day Facility Coordination Debbie Carrier, facilities coordinator for the Columbus Microsoft Office and helped us out greatly with the venue   Slides and Script Samples    I presented my session on “PowerShell for the SharePoint 2010 Developer”.  Below you can download the slides and script samples.   Photos    I wasn’t able to take took many pictures (only 3) as I was busy doing my presentation, answering questions, and taking care of random items throughout the day.   Pictures on Facebook    click here Pictures on SkyDrive (higher res) PowerShell Saturday Columbus Mar '12 VIEW SLIDE SHOW DOWNLOAD ALL   Conclusion    I’m very happy that this first ever PowerShell Saturday was a success.  My fellow PFE and speaker Ashley McGlone also has a short write-up on his blog about the event (click here).  I have heard rumors that there are other cities starting to plan their own local events.  When I hear more details I’ll spread the word here and on Twitter.         -Frog Out

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  • Changing Career to Game Development

    - by Don Carleone
    I m enthusiastic about and ready to shifting my career to Game Development sector, but before that I wonder some situations, I m now working as Senior .net programmer, i can only write code in c# right now, but i started to learn c++, I m computer engineer so before I know how to write in C but I didnt work with big projects, I wrote "Game of Life" before with C and used only Linked List DataStructure becouse of pushed my limits. But now I m thinking to shift Game Development, I love to play Console Games, I respect people who works about that business. But I just wonder, I see a lot of great developers who write codes with C++ and I ask myself that guys dont think to join Game Industry so why I think I can join! is that True? I dont live in USA or big country like. I live in a poor country, and here is no any Game Development Company, so I have to move to USA for working that job. So can you tell me if I start to learn something (c++,game enginees,physic enginees,3d math etc.) right now and working my usual job, after 7-8 month is it good time to move and finding a job about Game development in USA as junior game developer? is that possible? or is this just a dream? I realy need your advices. You can give down vote about that no problem, at least one advice can help me in my life.

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  • How to talk a client out of a Flash website?

    - by bunglestink
    I have recently been doing a bunch of web side projects through word of mouth recommendations only. Although I am much more a of a programmer than a designer by any means, my design skills are not terrible, and do not hate dealing with UI like many programmers. As a result, I find myself lured into a bunch of side projects where aside from a minimal back end for content administration, most of the programming is on front end interfaces (read javascript/css). By far the biggest frustration I have had is convincing clients that they do not want Flash. Aside the fact that I really do not enjoy Flash "development", there are many practical reasons why Flash is not desirable (lack of compatibility across devices, decreased client accessibility, plug-in requirements, increased development time, etc.). Instead of just flat out telling the clients "I will not build you a flash website", I would much rather use tactics to convince/explain to them that this is not what they actually want, ie: meet their requirements any better than standard html/css/js and distract users from their content. What kind of first hand experience do others have with this? How do you explain to someone that javascript/css/AJAX is usually a better option for most websites? Why do people want to use Flash so bad to begin with? This question pertains to clients who do not have any technical reasons for wanting flash, but just want it because they think it makes pretty websites.

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  • How can I compare between web development technologies?

    - by Steve
    I would like experts to explain for me how can I compare between web development tools or technologies in order to be able to choose the right one. I'm tired from searching always in the regular way: X Technology vs Y Technology. I'm tired from peoples' biased opinions and usually I don't find a fair comparison. I have decided to put my question here about how can I compare them so you may identify to me the main standards for comparisons so I can compare them by myself and becoming able to choose the technology that is appropriate for the project I will develop. Note: in web development technologies I mean server side languages (e.g. PHP). One important requirement for me that can be defined as major one is cost efficiency and I mean that I don't care about the cost in the near future or the current cost, but what is more important for me is the cost in the future. If, for example, the site becomes one of the most 100 visited sites.   So, how can I compare the cost of different technologies for a future status of a site (such as being very famous site) so I can scale my option easily without missing a good technology like what happened with some sites when they chose not the most effective tool.

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  • Howto fix "[Errno 13] Permission denied" in mailman mailing lists

    - by Michael
    After migrating domains from one plesk server onto another, I got several of those mails every day: (the target mailbox does not exist, so I get those as undeliverable mail bounces) Return-Path: <[email protected]> Received: (qmail 26460 invoked by uid 38); 26 May 2012 12:00:02 +0200 Date: 26 May 2012 12:00:02 +0200 Message-ID: <20120526100002.xyzxx.qmail@lvpsxxx-xx-xx-xx.dedicated.hosteurope.de> From: [email protected] (Cron Daemon) To: [email protected] Subject: Cron <list@lvpsxxx-xx-xx-xx> [ -x /usr/lib/mailman/cron/senddigests ] && /usr/lib/mailman/cron/senddigests Content-Type: text/plain; charset=ANSI_X3.4-1968 X-Cron-Env: <SHELL=/bin/sh> X-Cron-Env: <HOME=/var/list> X-Cron-Env: <PATH=/usr/bin:/bin> X-Cron-Env: <LOGNAME=list> List: xyzxyz: problem processing /var/lib/mailman/lists/xyzxyz/digest.mbox: [Errno 13] Permission denied: '/var/lib/mailman/archives/private/xyzxyz' I tried to fix the permissions myself, but the problem still exists.

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  • a young intellect asks: Python or Ruby for freelance?

    - by Sophia
    Hello, I'm Sophia. I have an interest in self-learning either Python, or Ruby. The primary reason for my interest is to make my life more stable by having freelance work = $. It seems that programming offers a way for me to escape my condition of poverty (I'm on the edge of homelessness right now) while at the same time making it possible for me to go to uni. I intend on being a math/philosophy major. I have messed with Python a little bit in the past, but it didn't click super well. The people who say I should choose Python say as much because it is considered a good first language/teaching language, and that it is general-purpose. The people who say I should choose Ruby point out that I'm a very right-brained thinker, and having multiple ways to do something will make it much easier for me to write good code. So, basically, I'm starting this thread as a dialog with people who know more than I do, as an attempt to make the decision. :-) I've thought about asking this in stackoverflow, but they're much more strict about closing threads than here, and I'm sort of worried my thread will be closed. :/ TL;DR Python or Ruby for freelance work opportunities ($) as a first language? Additional question (if anyone cares to answer): I have a personal feeling that if I devote myself to learning, I'd be worth hiring for a project in about 8 weeks of work. I base this on a conservative estimate of my intellectual capacities, as well as possessing motivation to improve my life. Is my estimate necessarily inaccurate? random tidbit: I'm in Portland, OR I'll answer questions that are asked of me, if I can help the accuracy and insight contained within the dialog.

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  • Java stored procedures in Oracle, a good idea?

    - by Scott A
    I'm considering using a Java stored procedure as a very small shim to allow UDP communication from a PL/SQL package. Oracle does not provide a UTL_UDP to match its UTL_TCP. There is a 3rd party XUTL_UDP that uses Java, but it's closed source (meaning I can't see how it's implemented, not that I don't want to use closed source). An important distinction between PL/SQL and Java stored procedures with regards to networking: PL/SQL sockets are closed when dbms_session.reset_package is called, but Java sockets are not. So if you want to keep a socket open to avoid the tear-down/reconnect costs, you can't do it in sessions that are using reset_package (like mod_plsql or mod_owa HTTP requests). I haven't used Java stored procedures in a production capacity in Oracle before. This is a very large, heavily-used database, and this particular shim would be heavily used as well (it serves as a UDP bridge between a PL/SQL RFC 5424 syslog client and the local rsyslog daemon). Am I opening myself up for woe and horror, or are Java stored procedures stable and robust enough for usage in 10g? I'm wondering about issues with the embedded JVM, the jit, garbage collection, or other things that might impact a heavily used database.

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  • Video for an ads-driven web-site

    - by AntonAL
    I have a website, wich i will fill with a bunch of useful videos. I've implemented an ads rotation engine for articles and will do so for videos. The next milestone is to decide, how video will be integrated. They are two ways: To host videos myself. Pros: complete freedom. Cons: need tens of gigabytes of storage; support for multiple formats to be crossbrowser and crossdevice. Use Youtube. Pros: Very simple to use; nothing to do. What are pros and cons for each way ? Some questions for YouTube: Will i be able to control playback of YouTube-embedded video to make post-rolls ? What is ranking impact on my web-site, when most of pages will refer to YouTube ? Will, say, iPad play video, embedded via YouTube's iframe ? Does relying entirely on YouTube have a long-term perspective for a web-site, that should bring money ?

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  • Middleware Oracle Excellence Awards 2012 - HAPPY NEW YEAR!

    - by JuergenKress
    Thanks for the FY12 middleware business! Make sure you become our SOA & BPM partner of the year! The Oracle Excellence Awards 2012 are Open for Nominations Middleware Specialized Partners: Submit your Nominations for the Middleware Specialized Partner of the Year by 29 June! The Specialized Partner of the Year Award celebrates OPN Specialized partners in EMEA who have demonstrated success with specialization, delivering customer value, and outstanding solution or service innovation in categories that complement OPN Specialization investments. Nominate now to receive the recognition you deserve! Winners of the Specialized Partner of the Year - EMEA Awards will each receive: $5k MDF for market expansion and promotion of their winning solutions/services extensive visibility across the extended Oracle community through interviews, advertising and video prestige and recognition by being awarded in a ceremony at Oracle OpenWorld. In addition, winners from all the Oracle Excellence Awards categories will receive a free registration to Oracle OpenWorld 2012 in San Francisco, California, as well as be showcased at the conference in October, be given an opportunity to mingle with Oracle executives and their peers, and be featured in Oracle Magazine. Nomination tips: · Build your nomination with Oracle · Provide evidence of your success · Send supporting documents here. · Get a quote from Oracle product management or myself! Closing date: 29 June Full details of all Oracle Awards offered this year are available on the Oracle Excellence Awards Website. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit  www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Technorati Tags: Oracle Excellence Awards 2012,SOA Specialization award,SOA Community,Oracle SOA,Oracle BPM,BPM Community,OPN,Jürgen Kress

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  • Middleware Oracle Excellence Awards 2012 & HAPPY NEW YEAR!

    - by JuergenKress
    Thanks for the FY12 middleware business! Make sure you become our WebLogic partner of the year! The Oracle Excellence Awards 2012 are Open for Nominations Middleware Specialized Partners: Submit your Nominations for the Middleware Specialized Partner of the Year by 29 June! The Specialized Partner of the Year Award celebrates OPN Specialized partners in EMEA who have demonstrated success with specialization, delivering customer value, and outstanding solution or service innovation in categories that complement OPN Specialization investments. Nominate now to receive the recognition you deserve! Winners of the Specialized Partner of the Year - EMEA Awards will each receive: $5k MDF for market expansion and promotion of their winning solutions/services extensive visibility across the extended Oracle community through interviews, advertising and video prestige and recognition by being awarded in a ceremony at Oracle OpenWorld. In addition, winners from all the Oracle Excellence Awards categories will receive a free registration to Oracle OpenWorld 2012 in San Francisco, California, as well as be showcased at the conference in October, be given an opportunity to mingle with Oracle executives and their peers, and be featured in Oracle Magazine. Nomination tips: · Build your nomination with Oracle · Provide evidence of your success · Send supporting documents here. · Get a quote from Oracle product management or myself! Closing date: 29 June Full details of all Oracle Awards offered this year are available on the Oracle Excellence Awards Website. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit  www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Technorati Tags: Oracle Excellence Awards 2012,SOA Specialization award,SOA Community,Oracle SOA,Oracle BPM,BPM Community,OPN,Jürgen Kress

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  • yet another question about migrating to Java

    - by aloneguid
    Hi, There are plenty similar questions, but maybe responses to this one will save a developer's life :) I want to migrate to Java. The reasons are very clear: all the .NET vacancies are client and windows oriented (Silverlight developer, ASP.NET developer, WPF developer etc.) and none of them are any interest to me. I worked with .NET since it's beginning as our company decided to invest in .NET having C++ stack and all the natual problems, so I was just blindly following and actually enjoyed it as the products were mostly server oriented with mixed C++/C# code. Today I have beforementioned problem - can't find an inspiring job. I'd rather kill myself than start working on a Silverlight or WPF project. Searching Java vacancies shows promising results, however they all require a huge java-related technology stack and experience. The question is is there any chance to find a job quickly and without dramatic salary drop (I know that Java guys are usually better paid, so there must be a kind of a credit) and if not, how must time and effort does it take to migrate (my .NET knowledge mostly includes server-oriented technologies like NHibernate, WCF, threading, sockets, ASP.NET web services, Enterprise Library, NInject etc etc etc, and (still) some C++ leftovers). Thanks!

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  • yet another question about migrating to Java

    - by aloneguid
    Hi, There are plenty similar questions, but maybe responses to this one will save a developer's life :) I want to migrate to Java. The reasons are very clear: all the .NET vacancies are client and windows oriented (Silverlight developer, ASP.NET developer, WPF developer etc.) and none of them are any interest to me. I worked with .NET since it's beginning as our company decided to invest in .NET having C++ stack and all the natual problems, so I was just blindly following and actually enjoyed it as the products were mostly server oriented with mixed C++/C# code. Today I have beforementioned problem - can't find an inspiring job. I'd rather kill myself than start working on a Silverlight or WPF project. Searching Java vacancies shows promising results, however they all require a huge java-related technology stack and experience. The question is is there any chance to find a job quickly and without dramatic salary drop (I know that Java guys are usually better paid, so there must be a kind of a credit) and if not, how must time and effort does it take to migrate (my .NET knowledge mostly includes server-oriented technologies like NHibernate, WCF, threading, sockets, ASP.NET web services, Enterprise Library, NInject etc etc etc, and (still) some C++ leftovers). Thanks!

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  • How Can I Know Whether I Am a Good Programmer?

    - by Kristopher Johnson
    Like most people, I think of myself as being a bit above average in my field. I get paid well, I've gotten promotions, and I've never had a real problem getting good references or getting a job. But I've been around enough to notice that many of the worst programmers I've worked with thought they were some of the best. Bad programmers who are surrounded by other bad programmers seem to be the most self-deluded. I'm certainly not perfect. I do make mistakes. I do miss deadlines. But I think I make about the same number of bonehead moves that "other good programmers" do. The problem is that I define "other good programmers" to mean "people who are like me." So, I wonder, is there any way a programmer can make some sort of reasonable self-evaluation? How do we know whether we are good or bad at our jobs? Or, if terms like good and bad are too ill-defined, how can programmers honestly identify their own strengths and weaknesses, so that they can take advantage of the former and work to improve the latter?

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  • How can I generate a view or projection matrix for OpenGL 3.+

    - by Ken
    I'm transitioning from OpenGL 2 to OpenGL 3.+ and to GLSL 1.5. I'm trying to avoid using the deprecated features. My question how do we now generate the view or projection matrix. I was using the matrix stack to calculate the projection matrix for me; GLfloat ptr[16]; gluPerspective(...); glGetFloatv(GL_MODELVIEW_MATRIX, ptr); //then pass ptr via a uniform to the shader But obviously the matrix stack is deprecated. So this approach is not the best an option going forward. I have the 'Red Book', 7th ed, which covers 3.0 & 3.1 and it still uses the deprecated matrix functions in it's examples. I could write some utility-code myself to generate the matrices. But I don't want to re-invent this particular wheel, especially when this functionality is required for every 3D graphics program. What is the accepted way to generate world,view & projection matrices for OpenGL? Is there an emerging 'standard' library for this? Or is there some other hidden (to me) functionality in OpenGL/GLSL which I have overlooked?

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  • PHP: A config file in .ini or .php format?

    - by Tim Visee
    I'm working on a huge CMS system, and I asked myself what configuration format I should use. There are two common formats for configuration files. The first one is an INI file, containg all the configuration properties. Then you can simply parse this INI file using build in PHP functions. A second option is to use a PHP file containing a regular PHP array with these configuration properties. Now, it's easier to edit an INI file, but a PHP file give's you more options, for example it allows you to add a function which retrieves one of the configuration options while reading the configuration file. Note: The PHP configuration file would only contain an array of configuration, no initialization functions or anything. (This is possible of course, but it's not implemented by default) Now, what is recommend for me to use as configuration file? What is the most common format for a configuration file? Should I go for simplicity with the INI files, or with a more dynamic one using PHP. One thing to note, this is not for personal usage. I'm planning to release the CMS system soon, and a lot of websites are scheduled already to change to my CMS system.

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  • How can I find the shortest path between two subgraphs of a larger graph?

    - by Pops
    I'm working with a weighted, undirected multigraph (loops not permitted; most node connections have multiplicity 1; a few node connections have multiplicity 2). I need to find the shortest path between two subgraphs of this graph that do not overlap with each other. There are no other restrictions on which nodes should be used as start/end points. Edges can be selectively removed from the graph at certain times (as explained in my previous question) so it's possible that for two given subgraphs, there might not be any way to connect them. I'm pretty sure I've heard of an algorithm for this before, but I can't remember what it's called, and my Google searches for strings like "shortest path between subgraphs" haven't helped. Can someone suggest a more efficient way to do this than comparing shortest paths between all nodes in one subgraph with all nodes in the other subgraph? Or at least tell me the name of the algorithm so I can look it up myself? For example, if I have the graph below, the nodes circled in red might be one subgraph and the nodes circled in blue might be another. The edges would all have positive integer weights, although they're not shown in the image. I'd want to find whatever path has the shortest total cost as long as it starts at a red node and ends at a blue node. I believe this means the specific node positions and edge weights cannot be ignored. (This is just an example graph I grabbed off Wikimedia and drew on, not my actual problem.)

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  • Why is the root partition on my disk full?

    - by Agmenor
    I installed Ubuntu 12.04 by doing a fresh install where there was previously Ubuntu 11.10. My computer warns me now that my disk is nearly full. After having run apt-get purge, run apt-get autoremove and emptied the Trash can, I still have this problem as shown by this screenshot of Gparted: The disk /dev/sda7 is indeed full. I ran the Disk Usage Analyzer (Baobab) and I am still not sure of what is happening: One of my hypothesis is that when installing Ubuntu 12.04, I didn't configure my disks well and the disk /dev/sda6 is not mounted well as /home. Is this the reason indeed? What should I do to verify this and then to get the things fixed? Here are a few additional details to answer the questions I received (thank you everybody): My home directory is not encrypted. The Backup utility (Déjà Dup) is not set for automatic backups. (I do it myself and manually.) After I mount /dev/sda6, the command df -h gives Filesystem Size Used Avail Use% Mounted on /dev/sda7 244G 221G 12G 96% / udev 3,9G 4,0K 3,9G 1% /dev tmpfs 1,6G 904K 1,6G 1% /run none 5,0M 0 5,0M 0% /run/lock none 3,9G 164K 3,9G 1% /run/shm /dev/sda6 653G 189G 433G 31% /media/8ec2fa69-039b-4c52-ab1b-034d785132a1 (sorry but formatting this into code does not work, for an unknown reason) Thanks to izx's post, I realized /dev/sda6 was not even mounted before. It contains all the documents I used to have when I was running Ubuntu 11.10.

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  • unit/integration testing web service proxy client

    - by cori
    I'm rewriting a PHP client/proxy library that provides an interface to a SOAP-based .Net webservice, and in the process I want to add some unit and integration tests so future modifications are less risky. The work the library I'm working on performs is to marshall the calls to the web service and do a little reorganizing of the responses to present a slightly more -object-oriented interface to the underlying service. Since this library is little else than a thin layer on top of web service calls, my basic assumption is that I'll really be writing integration tests more than unit tests - for example, I don't see any reason to mock away the web service - the work that's performed by the code I'm working on is very light; it's almost passing the response from the service right back to its consumer. Most of the calls are basic CRUD operations: CreateRole(), CreateUser(), DeleteUser(), FindUser(), &ct. I'll be starting from a known database state - the system I'm using for these tests is isolated for testing purposes, so the results will be more or less predictable. My question is this: is it natural to use web service calls to confirm the results of operations within the tests and to reset the state of the application within the scope of each test? Here's an example: One test might be createUserReturnsValidUserId() and might go like this: public function createUserReturnsValidUserId() { // we're assuming a global connection to the service $newUserId = $client->CreateUser("user1"); assertNotNull($newUserId); assertNotNull($client->FindUser($newUserId); $client->deleteUser($newUserId); } So I'm creating a user, making sure I get an ID back and that it represents a user in the system, and then cleaning up after myself (so that later tests don't rely on the success or failure of this test w/r/t the number of users in the system, for example). However this still seems pretty fragile - lots of dependencies and opportunities for tests to fail and effect the results of later tests, which I definitely want to avoid. Am I missing some options of ways to decouple these tests from the system under test, or is this really the best I can do? I think this is a fairly general unit/integration testing question, but if it matters I'm using PHPUnit for the testing framework.

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  • Subsumption architecture vs. perceptual control theory

    - by Yasir G.
    I'm a new person to AI field and I have to research and compare 2 different architectures for a thesis I'm writing. Before you scream (homework thread), I've been reading on these 2 topics only to find that I'm confusing myself more.. let me first start with stating briefly what I know so far. Subsumption is based on the fact that targets of a system are different in sophistication, thus that requires them to be added as layers, each layer can suppress (modify) the command of the layers below it, and there are inhibitors to stop signals from execution lets say. PCT stresses on the fact that there are nodes to handle environmental changes (negative feedback), so the inputs coming from an environment go through a comparator node and then an action is generated by that node, HPCT or (Hierarchical PCT) is based on nesting these cycles inside each other so a small cycle to avoid crashing would be nested in a more sophisticated cycle that targets a certain location for example. My questions, am I getting this the right way? am I missing any critical understanding about these 2 models? also any idea where I can find simplified explanations for each theory (so far been struggling trying to understand the papers from Google scholar :< ) /Y

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  • XNA Quadtree with LOD

    - by Byron Cobb
    I'm looking to create a fairly large environment, and as such would like to implement a quadtree and use LOD on it. I've looked through numerous examples and I get the basic idea of a quadtree. Start with a root node with 4 vertices covering the whole map and divide into 4 children nodes until I meet some criteria(max number of triangles) I'm looking for some very very basic algorithm or explanation with respect to drawing the quadtree. What vertices need to be stored per iteration? When do I determine what vertices to draw? When to update indices and vertices? Hope to integrate the bounding frustrum? Do I include parent and child vertices? I'm looking for very simple instruction on what to do. I've scoured the internet for days now looking, but everyone adds extra code and a different spin without explanation. I understand quadtrees, but not with respect to 3d rendering and lod. A link to an outside source will probably have been read by myself already and won't help. Regards, Byron.

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  • Pythonic use of the isinstance function?

    - by Pace
    Whenever I find myself wanting to use the isinstance() function I usually know that I'm doing something wrong and end up changing my ways. However, in this case I think I have a valid use for it. I will use shapes to illustrate my point although I am not actually working with shapes. I am parsing XML configuration files that look like the following: <square> <width>7</width> </square> <rectangle> <width>5</width> <height>7</height> </rectangle> <circle> <radius>4</radius> </circle> For each element I create an instance of the Shape class and build up a list of Shape objects in a class called the ShapeContainer. Different parts of the rest of my application need to refer to the ShapeContainer to get certain shapes. Depending on what the code is doing it might need just rectangles, or it might operate on all quadrangles, or it might operate on all shapes. I have created the following function in the ShapeContainer class (the actual function uses a list comprehension but I have expanded it here for readability): def locate(self, shapeClass): result = [] for shape in self.__shapes: if isinstance(shape,shapeClass): result.append(shape) return result Is this a valid use of the isinstance function? Is there another way I can do this which might be more pythonic?

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  • Does Unity have existing support for Timelines?

    - by Raven Dreamer
    I am planning the development of a game in Unity3D, and trying to come to terms with what the engine has already provided, and what I must code myself. The game itself is going to be a rhythm game, which means synching audio and graphical events so that they always play when they're supposed to. What I'm looking to avoid is a potential scenario of lag where either the audio or the graphics starts to progress faster than the other. When we discussed this type of coordinating system in my game design class back at university, my professor called this type of design a "Timeline" class. The idea being that you can instantiate one or more of these to progress at different rates, schedule things to happen in the future, and synch up periodic events. However, calling this a "Timeline" class seems to have been limited to my professor himself, as googling for whether a certain API features "Timeline" functionality has been a fruitless endeavor. Is there some more common name for this kind of functionality? Does Unity have any pre-existing methods to coordinate the scheduling of events like this, or is this the kind of thing that needs to be built onto the engine? And if it does, I'd appreciate being pointed towards some tutorials!

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  • Getting a lot of postmaster undeliverable notices for non-existent users

    - by Mike Walsh
    I've had my domain (straightpathsql.com) for a few years now. I host my e-mail with Google Accounts for business and have for awhile. ALl of the sudden in the past week I am starting to get a lot of postmaster delivery fail notices from various domains, most of them involving bogus e-mail addresses at my domain ([email protected], for example)... My assumption here is that someone is trying to relay on some other host (not my hosts which are secure through google apps for business, I presume) and there isn't much I can do to stop it. But I just want to make sure there isn't something else I need to be looking at here.. An example delivery fail notice is below.. I know nothing of those addresses below and they look like garbage... (Quick edit: the reason I get these messages is I set myself up as a catch all, so it doesn't matter what e-mail you send a note to at my domain, I'll get it if the account isn't setup... All of the failure messages are sent to bogus addresses on my domain) The following message to <[email protected]> was undeliverable. The reason for the problem: 5.1.0 - Unknown address error 553-'sorry, this recipient is in my badrecipientto list (#5.7.1)' Final-Recipient: rfc822;[email protected] Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [118.82.83.11] Diagnostic-Code: smtp; 5.1.0 - Unknown address error 553-'sorry, this recipient is in my badrecipientto list (#5.7.1)' (delivery attempts: 0) ---------- Forwarded message ---------- From: Howard Blankenship <[email protected]> To: omiivi2922 <[email protected]> Cc: Date: Subject: Hi omiivi2922

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  • Exporting PowerPoint Slides with Specific Heights and Widths

    - by Damon Armstrong
    I found myself in need of exporting PowerPoint slides from a presentation and was fairly excited when I found that you could save them off in standard image formats. The problem is that Microsoft conveniently exports all images with a resolution of 960 x 720 pixels, which is not the resolution I wanted.  You can, however, specify the resolution if you are willing to put a macro into your project: Sub ExportSlides()   For i = 1 To ActiveWindow.Selection.SlideRange.Count     Dim fileName As String     If (i < 10) Then       fileName = "C:\PowerPoint Export\Slide" & i & ".png"     Else       fileName = "C:\PowerPoint Export\Slide0" & i & ".png"     End If     ActiveWindow.Selection.SlideRange(i).Export fileName, "PNG", 1280, 720   Next End Sub When you call the Export method you can specify the file type as well as the dimensions to use when creating the image.  If the macro approach is not your thing, then you can also modify the default settings through the registry: http://support.microsoft.com/kb/827745

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