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• DDD and validation of aggregate root

  - by Mik378

  Suppose an aggregate root : MailConfiguration (wrapping an AddressPart object). The AddressPart object is a simple immutable value object with some fields like senderAdress, recipentAddress (to make example simple). As being an invariant object, AddressPart should logically wrap its own Validator (by the way of external a kind of AddressValidator for respecting Single Responsibility Principle) I read some articles that claimed an aggregateRoot must validate its 'children'. However, if we follow this principle, one could create an AddressPart with an uncohesive/invalid state. What are your opinion? Should I move the collaborator AddressValidator(used in constructor so in order to validate immediately the cohesion of an AddressPart) from AddressPart and assign it to aggregateRoot (MailConfiguration) ?

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• Enzo Backup for SQL Azure Beta Released!

  - by ScottKlein

  Blue Syntax is happy to announce the release of their SQL Azure database backup product! Enzo Backup for SQL Azure offers unparalleled backup and restored functionlity and flexibility of a SQL Azure database. You can download the beta release here: http://www.bluesyntax.net/backup.aspx With Enzo Backup for SQL Azure, you can: Create a backup blob, or a backup file from a SQL Azure database Restore a SQL Azure database from a backup blob, or a backup file Perform limited backup and restore of SQL Server databases (see details) Run backups entirely in the cloud using a remote agent Backup a single schema of a database Restore specific tables only Copy backup devices from on-premise to the cloud Use a command-line utility to perform backup operations Perform transactionally consistent backups for SQL Azure Please download it and provide us your feed back!

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• The answer to the unfathomable question: what is meaning of error value 2147943645?

  - by Jim Lahman

  I scheduled a task to perform a windows backup of a single disk on the my server.  When I tested it, the task ran successfully – no problems, no errors; just as I expected.    However, when the task ran as scheduled, it failed with error value 2147943645.  I wondered was this the answer to life, the universe and everything in it?  No.  That is 42.    After doing some research and reviewing the task configuration, I realize that the task will only run if the user of logged on:   So, this was the answer!!  I have to configure the task to run whether the user is logged or not.  Or, else I’ll get that nasty error value.

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• Outline Shader Effect for Orthogonal Geometry in XNA

  - by Griffin

  I just recently started learning the art of shading, but I can't give an outline width to 2D, concave geometry when restrained to a single vertex/pixel shader technique (thanks to XNA). the shape I need to give an outline to has smooth, per-vertex coloring, as well as opacity. The outline, which has smooth, per-vertex coloring, variable width, and opacity cannot interfere with the original shape's colors. A pixel depth border detection algorithm won't work because pixel depth isn't a 3.0 semantic. expanding geometry / redrawing won't work because it interferes with the original shape's colors. I'm wondering if I can do something with the stencil/depth buffer outside of the shader functions since I have access to that through the graphics device. But I don't believe I'm able to manipulate actual values. How might I do this?

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• Breaking up a large PHP object used to abstract the database. Best practices?

  - by John Kershaw

  Two years ago it was thought a single object with functions such as $database->get_user_from_id($ID) would be a good idea. The functions return objects (not arrays), and the front-end code never worries about the database. This was great, until we started growing the database. There's now 30+ tables, and around 150 functions in the database object. It's getting impractical and unmanageable and I'm going to be breaking it up. What is a good solution to this problem? The project is large, so there's a limit to the extent I can change things. My current plan is to extend the current object for each table, then have the database object contain these. So, the above example would turn into (assume "user" is a table) $database->user->get_user_from_id($ID). Instead of one large file, we would have a file for every table.

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• Using glReadBuffer returns black image instead of the actual image only on Intel cards

  - by cloudraven

  I have this piece of code glReadBuffer( GL_FRONT ); glReadPixels( 0, 0, width, height, GL_RGB, GL_UNSIGNED_BYTE, buffer ); Which works just perfectly in all the Nvidia and AMD GPUs I have tried, but it fails in almost every single Intel built-in video that I have tried. It actually works in a very old 945GME, but fails in all the others. Instead of getting a screenshot I am actually getting a black screen. If it helps, I am working with the Doom3 Engine, and that code is derived from the built-in screen capture code. By the way, even with the original game I cannot do screen capture on those intel devices anyway. My guess is that they are not implementing the standard correctly or something. Is there a workaround for this?

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• Why is my display name in Ubuntu Software Center some weird set of letters?

  - by Ike

  In USC, after I submit a review, my display name is "Bnxdcty"... a swell name, but where did it come from? I have checked the ubuntu single sign on page, verified my nickname on there, changed it to something else and back again for good measure, but still my reviewer name is somehow still "Bnxdcty". I even unauthorized ubuntu software center and then re-opened it/authorized it to my account. Does this just appear as this to me and others see my correct user nickname? It doesn't bother as much as it confuses me. I just know it will be something stupid that everyone knows but me.

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• One-way platforms in UDK

  - by Jordaan Mylonas

  I'm looking to make a multi-player platforming game using UDK. I'm currently doing feasibility research, to make sure I will reasonably be able to do all of the technical things I want to do. The first major hurdle I've come across without being able to find as answer, are one-way platforms. That is to say, platforms through which a player can jump up, but not fall through (unless they choose to). These are commonly seen in games like Mario, Kirby and Smash Bros. Does anyone know how such a system would work within UDK? I can think of solutions that might work for single-player, but not multi.

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• How much to charge for Wordpress installation?

  - by Jack Duluoz

  I know this isn't properly a technical question but I hope this is ok here. The question is simple: how much should I charge a customer for a Wordpress installation & configuration? Configuration simply means I have to install him a theme (which is not provided by me), various plugins and maybe edit some lines of code here and there to make the whole thing work fine. MORE INFO I don't do this for a living, I'm just doing this for this single customer. He told me he wants to customize some features of the blog which I think will require a bit of code editing, but these will be small modifications, because I already told him that more substantial modifications will be billed separately. I don't know exactly how long will this take, but probably just 1 day for the setup and some more days to adapt the blog to the customer requests which will eventually come up later

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• Git bug branching convention

  - by kisplit

  I've been following the successful Git branching model guide for most of my development. I still wonder if the way I handle bug tickets is correct. My current workflow: Once I accept a bug ticket I will do a git checkout -b bug/{ticket_number}, create a single commit as a fix and then checkout develop and do a git merge --no-ff. I'd love to hear from the experiences of others whether or not I am abusing the --no-ff option in this instance. If I am, could someone suggest a better approach?

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• Install Ubuntu 12.04 LTS 64bit in Lenovo S205 Failed

  - by Zakiul Fuady

  I had ever installed Ubuntu 12.04 in Lenovo S205 twice, but it could not boot like an ordinary laptop. how i can fix this problem.? i tried to install dual boot. windows and Ubuntu. but it could not work properly. even, when i installed single boot. it could not too. installation was okay, but it could not boot to Ubuntu. just stuck in blank screen. like what I posted in my blog below http://fzakiul.wordpress.com/2012/05/11/lenovo-ideapad-s205-vs-ubuntu/ extremely need a help.

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• Cloudcel: Excel Meets the Cloud

  - by kaleidoscope

  Cloudscale  is launching Cloudcel Cloudcel is the first product that demonstrates the full power of integrated "Client-plus-Cloud" computing. You use desktop Excel in the normal way, but can also now seamlessly tap into the scalability and massive parallelism of the cloud, entirely from within Excel, to handle your Big Data. Building an app in Cloudcel is really easy – no databases, no programming. Simply drop building blocks onto the spreadsheet (in any order, in any location) and launch the app to the cloud with a single click. Parallelism, scalability and fault tolerance are automatic. With Cloudcel, you can process realtime data streams continuously, and get alerts pushed to you as soon as important events or patterns are detected ("Set it and forget it"). Cloudcel is offered as a pay-per-use cloud service – so no hardware, no software licenses, and no IT department required to set it up. Private cloud deployments are also available. Please find below link for more detail : http://billmccoll.sys-con.com/node/1326645 http://cloudcel.com/ Technorati Tags: Tanu

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• How would you represent an object that can be of multiple types, when storing it as a document in MongoDB?

  - by blueberryfields

  Somewhat related to this question, say that I have an object category which, depending on which type of object I have, has different restrictions on what it contains. (if you can reword the previous sentence to make more sense I'd appreciate it) For example var SomeSchema = new Schema({ _id: ObjectID, [... large number of common fields ...] type: //Restricted somehow to members of a fixed array data: //depending on type, this might be restricted - sometimes an integer, sometimes array, etc... }); What's the idiosyncratic method for defining this type of schema? Is it appropriate to define a single schema, and handle the types inside of it's members, or am I better off with separate schema for each type?

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• How do you set up PhysFS for use in a game?

  - by ThePlan

  After my recent question on GD I've been advised to use PhysFS to pack all my game data in 1 file. So I have, and the decission wasn't light, because I've tried out every library in my answers but none contained a single good tutorial whatsoever, in fact PhysFS is the poorest documented library I've ever seen. After attempting to set up PhysFS in my game I realized it's not as simple as adding the headers to the project, it appears something much more complicated, in fact after my first attempt to install PhysFS the compiler ran out of memory to display errors, it reached the critical count of 50 errors. So basically what I'm asking here is: How can I set up PhysFS on my game? I'm using Code::Blocks IDE on Windows XP SP3;

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• Google page rank not showing after redirecting www to non www?

  - by muhammad usman

  i have a fashion website. i had redirected my domain htttp:// (non www) to http:// www domain and my preferred domain in Google webmaster tools was http:// www. Now i have redirected http:// www to http:// domain and have changed my prefered domain as well. Now Google PageRank is not showing for even a single page. Would any body please help me and let me know if i have done something wrong? below is my htaccess redirect code RewriteBase / RewriteRule ^index\.php$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] RewriteCond %{HTTP_HOST} ^www\.deemasfashion\.com$ RewriteRule ^deemasfashion\.com/?(.*)$ http://deemasfashion.com/$1 [R=301,L] RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /index\.html\ HTTP/ RewriteRule ^index\.html$ http://deemasfashion.com/ [R=301,L] RewriteRule ^index\.htm$ http://deemasfashion.com/ [R=301,L]

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• ffmpeg: cut multiple input files with seeking to one output file

  - by Josef Kufner

  I have list of video files (loaded from database), each with start and end time of requested interval: # file begin end v1.mp4 1:01 2:01 v2.mp4 3:02 3:32 v3.mp4 2:03 5:23 And I need to create single video file containing these intervals: [0:00]---v1---[2:00]---v2---[2:30]---v3---[5:50] I preffer usig ffmpeg, since it is installed on server. Caller program is written in PHP. It is easy to cut one input to one output (argument escaping removed for clarity): exec("ffmpeg -ss $begin -i $input_file -ss $begin -c copy $output_file"); I there any easier way than executing ffmpeg for each interval and then execute it once more to concatenate prepared clips together? I really do not like to have a lot of temporary files or dealing with complex process handling.

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• Problems installing 13.10 inside VMWare Player 4

  - by Thomas S.

  In the past I had no problems installing Ubuntu 12.04 inside VMWare Player 4.0.4 on my Windows 7 Pro machine. Now I installed Ubuntu 13.10 and have a couple of problems: the default screensize (even during the installation) is gigantic I've told Ubuntu to automatically login - after reboot the gigantic screen occurs without showing anything, without doing anything on mouse clicks, Ctrl+Alt+Backspace does not work switching to console using Ctrl+Alt+F1...F6 works, but is incredible slow invoking 'sudo reboot now' does not succeed, it prints Killing all remining processes... [fail] Restoring resolver state... [ OK ] Will now switch to single-user mode root@ubuntu1310:~# invoking now 'shutdown now' will soon show the same error. What I need to do to get Ubuntu 13.10 up and running in VMWare Player?

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• How are crossplatform/multiple-OS C++ projects planned in terms of code and tools?

  - by Nav

  I want to create a project in C++ that can work in Windows, Linux and Embedded Linux. How are projects created when they have to work across many OS'es? Is it first created on one OS and then the code slowly modified to be ported to another OS? Eg: to me, the Linux version of Firefox appears to be created as a Windows project and a separate Linux project with a different code base, since Firefox behaves a bit different in Windows and Linux. Although the source code download is surprisingly a single link. If QT is used for UI, Boost threads for threading, Build Bot for CI and NetBeans/Eclipse/QT Creator for an IDE, would a person be able to minimise the amount of code re-write required to get the project onto another OS? Is this the right way to do it, or are such projects meant to be created as two entirely separate projects for two separate OS'es?

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• Find Nearest Object

  - by ultifinitus

  I have a fairly sizable game engine created, and I'm adding some needed features, such as this, how do I find the nearest object from a list of points? In this case, I could simply use the Pythagorean theorem to find the distance, and check the results. I know I can't simply add x and y, because that's the distance to the object, if you only took right angle turns. However I'm wondering if there's something else I could do? I also have a collision system, where essentially I turn objects into smaller objects on a smaller grid, kind of like a minimap, and only if objects exist in the same gridspace do I check for collisions, I could do the same thing, only make the gridspace larger to check for closeness. (rather than checking every. single. object) however that would take additional setup in my base class and clutter up the already cluttered object. TL;DR Question: Is there something efficient and accurate that I can use to detect which object is closest, based on a list of points and sizes?

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• Defining the track in a 2D racing game

  - by Ivan

  I am designing a top-down racing game using canvas (html5) which takes a lot of inspiration from Micro Machines. In MM, cars can move off the track, but they are reset/destroyed if they go too far. My maths knowledge isn't great, so I'm finding it hard to separate 3D/complex concepts from those which are directly relevant to my situation. For example, I have seen "splines" mentioned, is this something I should read up on or is that overkill for a 2D game? Could I use a single path which defines the centre of the track and check a car's distance from this line? A second path might be required as a "racing line" for AI. Any advice on methods/techniques/terms to read up on would be greatly appreciated.

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• Page for Page Redirect in Google App Engine

  - by clifgray

  I have recently changed domain name for a webapp I run on Google App Engine and I am wondering if there is a simple way to do a page for page redirect from my old website to the new domain. Everything code wise is staying exactly the same but I just want it to go to the new domain. I am using python and the webapp2 framework for the webapp. I know I could go through and for every single handler do: webapp2.redirect('the specific url', permanent=True) But I am hoping for a simpler solution.

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• Oracle Enterprise Taxation and Policy Management Self Service v1.0 is Now Available

  - by user722699

  New tax product - Oracle Enterprise Taxation Policy Management Self Service is now available. The solution provides tax and revenue authorities with a single citizen portal – powered by Oracle Policy Automation for Public Sector, Oracle WebCenter, Oracle Application Development Framework and Oracle SOA Suite – that can integrate across multiple tax types and tax processing systems. Oracle Enterprise Taxation and Policy Management Self Service enables tax and revenue authorities to quickly provide more taxpayer services online – such as the ability to make payments, contact the tax agency with questions and requests or receive self-guided automated assistance with policies and tax law.  Tax and revenue authorities can implement Oracle Enterprise Taxation and Policy Management Self Service – an out-of-the-box solution – quickly and easily, and lower the cost of taxpayer service operations by promoting a broader set of taxpayer self service features.  Resources: ·         Datasheet: http://www.oracle.com/us/industries/public-sector/ent-taxation-policy-service-ds-1873518.pdf ·         Documentation: http://docs.oracle.com/cd/E38189_01/index.htm ·    

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• Electronic Arts Talks about their Upgrade to Oracle E-Business Suite Release 12

  Electronic Arts Inc. is a leading global interactive entertainment software company. EA develops, publishes, and distributes interactive software worldwide for video game systems, personal computers, wireless devices and the Internet. EA uses many Oracle products such as E-Business Suite, Demantra, PeopleSoft, Hyperion, Fusion Middleware, etc . Last year, EA needed an ERP Transformation and wanted to move to one global single instance to manage their business better. They decided to migrate from E-Business Suite 11.5.9 to Release 12 to get the added functionality they needed.

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• Keyboard Navigation For ASP.NET GridView And TreeList Controls v2010 vol 1

  Great new keyboard navigation feature! With the DXperience v2010.1 release, you can enable keyboard navigation by changing a single property, set KeyboardSupport to true. Once KeyboardSupport is enabled, your users can: Focus On Grid Using Control Activation Key Specify an access key for your grid controls and allow your end-users to press CTRL+SHIFT+AccessKey to change focus to the corresponding grid control. Focused Row Press the UP and DOWN arrow keys to move row focus....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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• How can I resize an external USB NTFS partition?

  - by chris

  I have a new USB drive which came with a single NTFS partition. How can I shrink that so that I can create an ext4 partition? gparted does not seem to have the "Resize" option highlighted. Update: After following the directions below, after unmounting I am still not able to resize the partition. There is a warning though: "Unable to find mount point. Unable to read the contents of this file system! Because of this, some operations may be unavailable. The following list of software packages is required for ntfs file system support: ntfsprogs". However, with the partition mounted, I can read & write to the file system on the drive just fine, and ntfsprogs is installed and current. What's next?

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