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• git strategy to have a set of commits limited to a particular branch

  - by becomingGuru

  I need to merge between dev and master frequently. I also have a commit that I need to apply to dev only, for things to work locally. Earlier I only merged from dev to master, so I had a branch production_changes that contained the "undo commit" of the dev special commit. and from the master, I merged this. Used to work fine. Now each time I merge from dev to master and vice versa, I am having to cherry-pick and apply the same commit again and again :(. Which is UGLY. What strategy can I adapt so that I can seamlessly merge between 2 branches, yet retain some of the changes only on one of those branches?

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• Microsoft Expression Web 3 clipboard bug

  - by Ghostrider

  There seems to be a rather annoying bug in MS Expression Web 3 (or perhaps an incompatibility with something else I have installed). Quite often HTML code editor would refuse to copy things into clipboard. You select some text, press Ctrl-C, Ctrl-Insert or use context menu and nothing happens. Then in 10..15 seconds it would start working again... Then again it would not work. It's rather annoying. Does anyone else have such a problem or knows how to fix it? I'm running Microsoft Expression Web 3 Service Pack 1 Version 3.0.3813.0 on Windows 7 Ultimate x64 with all latest updates and patches. I have Russian keyboard layout installed. Other than that my system is pretty much plain vanilla.

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• Slow in the app, fast in SSMS

  - by DavidWimbush

  Users complain about a timeout but when you run the exact same query in SSMS it runs in a flash. Sounds familiar? I've been baffled by this before. I worked out that I was getting a different query plan in SSMS because of different SET OPTIONS but, having dealt with that, I was then stuck with parameter sniffing as the cause of the timeout. I've read about that but still didn't really understand how to fix it. Erland Sommarskorg has published an excellent article (http://www.sommarskog.se/query-plan-mysteries.html) in which he clearly explains what's going on and provides tools and techniques to fix it. Highly recommended reading. Thanks, Erland.

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• SQL, moving million records from a database to other database [migrated]

  - by Ryoma

  I am a C# developer, I am not really good with SQL. I have a simple questions here. I need to move more than 50 millions records from a database to other database. I tried to use the import function in ms SQL, however it got stuck because the log was full (I got an error message The transaction log for database 'mydatabase' is full due to 'LOG_BACKUP'). The database recovery model was set to simple. My friend said that importing millions records using task-import data will cause the log to be massive and told me to use loop instead to transfer the data, does anyone know how and why? thanks in advance

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• Learning c++ by contributing to open source projects

  - by user1189880

  I have some general programming experience with a few different languages, my most skilled being php. I want to spend a lot of time over the next year learning c++ in much more depth and then eventually get to a good enough level to find a job as a junior developer working in c++. I really struggle to find things to develop as toy programs so want to contribute to an open source project in c++ to get really stuck in to. But the projects I see on github in c++ are very large and will require a lot of knowlege to even get started. Are there any smaller projects that I can contribute to or are there any other good ideas for learning c++ from a practical level.

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• Computer-controlled Lights and Music Synced into Christmas Rock Spectacular

  - by Jason Fitzpatrick

  This spectacular computer controlled and synchronized lighting display combines thousands of feet of LED lighting, multiple controllers, and a rock medley to great effect. The above display started life as the personal Christmas light display of Sioux Falls, ND resident Joe Noe. When Noe moved, he donated his display to a local mall in order to preserve the tradition of people stopping by to see it and making donations to the Make-A-Wish foundation. The local mall, Western Mall, expanded the display and added in even more LEDs and controllers. The end result is an impressive display synced to a Christmas rock medley by UK musician Richard Campbell. [via Mashable] Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor How to Factory Reset Your Android Phone or Tablet When It Won’t Boot

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• Juju bootstrap, install

  - by Robert G.

  I would like to test MAAS + JUJU + OpenStack (I followed the documentation on maas.ubuntu.org) I already made a test environment: 1 MAAS server wich will also run JuJu 10 KVM servers for Openstack The KVM servers are already in "ready" state in MAAS. I would like to set up JuJu but i could not which is drives me crazy. My environments.yaml: environments: maassrv: type: maas maas-server: 'http://${192.168.1.116}/MAAS/' maas-oauth: 'my-key-from-maas' authorized-keys-path: /root/.ssh/id_rsa.pub admin-secret: 1234 default-series: trusty When I run "juju status -e maassrv` : ERROR Unable to connect to environment "maassrv". Please check your credentials or use 'juju bootstrap' to create a new environment. Error details: environment "maassrv" not found OK, it's right, so i should run juju bootstrap -e maassrv: ERROR environment "maassrv" not found When i run the command without the -e switch: error: no environment specified So, I am stuck here, I already added the required ssh keys to maas too. I ran out of ideas why it isn't working.

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• NVIDIA Geforce gt 555m driver install problem

  - by mir

  I recently installed ubuntu 12.04 on my asus N55SF, which runs nvidia geforce gt 555m and an integrated graphics, via optimus but after installation i found no such thing on ubuntu. i went o nvidia website and installed the driver from there(ver 259.59 i guess) after reboot, i was stuck at 640x480 resolution and my card was still undetected i reinstalled ubuntu but this time i installed bumblebee, but the system settings still shows the graphics as 'unknown' i dont know whether the driver has been installed or not, but from the 'unknown' i figure its not there. when i run sudo nvidia-settings i get this msg "You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (just run nvidia-xconfig as root), and restart the X server." however i can run the settings page by sudo nvidia-settins -c :8 i just want to know why ubuntu hasnt still detected the gpu? is it because bumblebee disables it? and i forgot one v important thing..I AM A NOOB :(

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• Adjust resolution in xfce4 virtualbox guest guest

  - by David

  I have Virtualbox 4.1.2_ubuntur3859 installed on an Ubuntu 11.10 host, running a guest ubuntu server 10.04 with xfce4 and xorg installed with no-install-recommends. I have installed guest additions, but the maximum resolution in the display settings is 800x600. I have read related questions: How to change resolution of the VirtualBox (Ubuntu guest and host)? Higher screen resolution in VirtualBox? upgrading VirtualBox 3.2.10 breaks my guest Ubuntu screen resolution Ubuntu as guest OS (with Vista host) stuck at 800x600 resolution but none contain the solution to my issue. Am I missing any particular packages that would allow me to change resolution? I would like to keep the machine as small as possible.

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• Collision Detection in Java for a game

  - by gordsmash

  Im making a game in Java with a few other people but we are stuck on one part of it, making the collision detection. The game is an RPG and I know how to do the collision detection with the characters using Rectangles, but what I dont know how to do is the collision detection for the maps. What I mean by that is like so the character cant walk over trees or water and that stuff but using rectangles doesnt seem like the best option here. Well to explain what the game maps are gonna look like, here is an example http://i980.photobucket.com/albums/ae287/gordsmash/7-8.jpg Now I could use rectangles to get bounds and stop the player from walking over the trees and water but that would take a lot of them. But is there another easier way to prevent the player from walking over the trees and obstacles besides using Rectangles?

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• I've got a ComboBox that's giving me grief in WPF using the MVVM pattern

  - by Mike

  Here's my code: <ComboBox Grid.Column="1" Grid.Row="9" ItemsSource="{Binding Path=PriorityEntries}" SelectedItem="{Binding Path=Priority,Mode=TwoWay}"/> The comboBox is bound properly with PriorityEntries, and when i change the value of the comboBox the "set" of the bound property(Priority) is called setting it to what it needs to be. However, when i close the UserControl that this combobox resides, it calls the set property again with a value of null and then sets what the selectedItem was to null. Why is the comboBox being bound again when I close the usercontrol. I tried setting the mode to OneTime, but that won't reflect any changes...

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• Problem with webcam after changing camera input to my iPhone's camera [closed]

  - by andrew

  While trying to use my iPhone as a webcam I changed the paths for the camera input - now I can neither use the built-in webcam nor my iPhone's camera This is the website where I got the information from: http://www.kudanai.com/2010/11/howto-use-your-iphone-as-webcam-in.html I got stuck at the loopback part. I would just like to know how to set the path back to my built-in camera so I can at least use that. Or if there is some way to reset the camera input settings. I'm using an Inspiron 1525 running Ubuntu 12.04 LTS. memory:2.9 GiB Processor:Intel® Core™2 Duo CPU T5750 @ 2.00GHz × 2 OS type: 64-bit

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• Calling a method from within a django model save() override

  - by Jonathan

  I'm overriding a django model save() method. Within the override I'm calling another method of the same class and instance which calculates one of the instance's fields based on other fields of the same instance. class MyClass(models.Model): field1 = models.FloatField() field2 = models.FloatField() field3 = models.FloatField() def calculateField1(self) self.field1 = self.field2 + self.field3 def save(self, *args, **kwargs): self.calculateField1() super(MyClass, self).save(*args, **kwargs) The override method is called when I change the model in admin. Alas I've discovered that within calculateField1() field2 and field3 have the values of the instance from before I edited them in admin. If I enter the instance again in admin and save again, only then field1 receives the correct value as field2 and field3 are already updated. Is this the correct behavior on django's side? If yes, then how can I use the new values within calculateField1? I cannot implement the calculation within the save() as calculateField1() actually quite long and I need it to be called from elsewhere.

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• Moonlight extension not working with new Firefox versions

  - by igi

  The web browser I use is Firefox (currently in version 8 in Oneiric). According the Compatibility Check information the Moonlight extension is not compatible with FF8. Anyway, I enabled this extension using the AddOn Compatibility Reporter. And, actually, I cannot watch Silverlight streams in an acceptable way: the video gets stuck, the HD keeps buffering (I guess), so I have to close the window. Does anybody know if there is a way to fix this or a suitable alternative? I'm looking for something which is fully supported and mantained.

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• H.264 over RTP - Identify SPS and PPS Frames

  - by Toby

  I have a raw H.264 Stream from an IP Camera packed in RTP frames. I want to get raw H.264 data into a file so I can convert it with ffmpeg. So when I want to write the data into my raw H.264 file I found out it has to look like this: 00 00 01 [SPS] 00 00 01 [PPS] 00 00 01 [NALByte] [PAYLOAD RTP Frame 1] // Payload always without the first 2 Bytes -> NAL [PAYLOAD RTP Frame 2] [... until PAYLOAD Frame with Mark Bit received] // From here its a new Video Frame 00 00 01 [NAL BYTE] [PAYLOAD RTP Frame 1] .... So I get the SPS and the PPS from the Session Description Protocol out of my preceding RTSP communication. Additionally the camera sends the SPS and the PPSin two single messages before starting with the video stream itself. So I capture the messages in this order: 1. Preceding RTSP Communication here ( including SDP with SPS and PPS ) 2. RTP Frame with Payload: 67 42 80 28 DA 01 40 16 C4 // This is the SPS 3. RTP Frame with Payload: 68 CE 3C 80 // This is the PPS 4. RTP Frame with Payload: ... // Video Data Then there come some Frames with Payload and at some point a RTP Frame with the Marker Bit = 1. This means ( if I got it right) that I have a complete video frame. Afer this I write the Prefix Sequence ( 00 00 01 ) and the NALfrom the payload again and go on with the same procedure. Now my camera sends me after every 8 complete Video Frames the SPS and the PPS again. ( Again in two RTP Frames, as seen in the example above ). I know that especially the PPS can change in between streaming but that's not the problem. My questions are now: 1. Do I need to write the SPS/PPS every 8th Video Frame? If my SPS and my PPS don't change it should be enough to have them written at the very beginning of my file and nothing more? 2. How to distinguish between SPS/PPS and normal RTP Frames? In my C++ Code which parses the transmitted data I need make a difference between the RTP Frames with normal Payload an the ones carrying the SPS/PPS. How can I distinguish them? Okay the SPS/PPS frames are usually way smaller, but that's not a save call to rely on. Because if I ignore them I need to know which data I can throw away, or if I need to write them I need to put the 00 00 01 Prefix in front of them. ? Or is it a fixed rule that they occur every 8th Video Frame?

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• Architecting multi-model multi-DB ASP.NET MVC solution

  - by A. Murray

  I have an ASP.NET MVC 4 solution that I'm putting together, leveraging IoC and the repository pattern using Entity Framework 5. I have a new requirement to be able to pull data from a second database (from another internal application) which I don't have control over. There is no API available unfortunately for the second application and the general pattern at my place of work is to go direct to the database. I want to maintain a consistent approach to modeling the domain and use entity framework to pull the data out, so thus far I have used Entity Framework's database first approach to generate a domain model and database context over the top of this. However, I've become a little stuck on how to include the second domain model in the application. I have a generic repository which I've now moved out to a common DataAccess project, but short of creating two distinct wrappers for the generic repository (so each can identify with a specific database context), I'm struggling to see how I can elegantly include multiple models?

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• how to learn ios game development using swift.. good starting point?

  - by hamobi

  I've published a simple app on the app store using objective-c. That was a good learning experience but I never grew to love the language. Later on I jumped into learning cocos2d in order to begin developing a game.. but objective-c always seemed really cumbersome to write. Eventually I put my project aside. Now that swift has come out.. It has made me think about developing games again.. I know that xcode has some project types geared towards game development, but since I'm a beginner in this area I really need some hand holding (books / tutorials) to get started. Cocos2d seems like its really stuck in that objective-c world. What's the best way for a beginner to learn game development using swift?

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• Am I copy/paste programmer ?

  - by Searock

  When ever I am stuck with a particular problem, I search for a solution in Google. And then I try to understand the code and tweak it according to my requirement. For example recently I had asked a question Reading xml document in firefox in stack overflow. Soufiane Hassou gave me a link to w3schools, where I found a example on parsing xml document, I understood how the example works, but I copied the code and tweaked it according to my requirement, since I don't like typing much. So does this make me a copy/paste programmer? How do you say if a person is a copy/paste programmer ? Thanks.

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• C# Gridview - Checking if a column already exists when adding a new column fails

  - by Nir

  I have a GridView with 10 columns. On a certain condition, I want to add a new column called "Expiration Date". The problem is that when the user presses "Search" again (Postback) the column is added again. I check before adding the column, to see if it already exists: BoundField dtExp = new BoundField {DataField = "DateTimeExpired", HeaderText = "Expiration Date", DataFormatString = "{0:d}"}; if (!grid.Columns.Contains(dtExp)){grid.Columns.Add(dtExp);} But the problem is that even if the column already exists, "Contains" returns false. What am I doing wrong? Thanks!

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• Parse error: syntax error, unexpected T_PUBLIC in ..... ?

  - by tonsils

  Hi, I am new to php and trying out this tutorial at : http://css-tricks.com/php-for-beginners-building-your-first-simple-cms/ Unfortunately I am getting the following error and can't seem to track down the reason: Parse error: syntax error, unexpected T_PUBLIC in ../simpleCMS.php on line 56 My code for simpleCMS.php is as is in the tutorial link above. FYI, my line 56 is the following line of code in simpleCMS.php public function display_admin() { Above this line is public function display_public() Can anyone possibly see what I could be doing wrong and again, my code is the same code from the tutorial website and have downloaded the files that came with it? Hoping someone can point me in the right direction. Furthermore, I am using Mac OS X MAMP to run my Apache/MySQL Server locally. My other question is, when I using the following command: mysql_connect($this->host,$this->username,$this->password) is my hostname 'localhost' alone or do I also have to include port alongside the localhost? Thanks again.

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• Finite state machine in C++

  - by Electro

  So, I've read a lot about using FSMs to do game state management, things like what and FSM is, and using a stack or set of states for building one. I've gone through all that. But I'm stuck at writing an actual, well-designed implementation of an FSM for that purpose. Specifically, how does one cleanly resolve the problem of transitioning between states, (how) should a state be able to use data from other states, and so on. Does anyone have any tips on designing and writing a implementation in C++, or better yet, code examples?

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• Game Physics: Implementing Normal Reaction from ground correctly

  - by viraj

  I am implementing a simple side scrolling platform game. I am using the following strategy while coding the physics: Gravity constantly acts on the character. When the character is touching the floor, a normal reaction is exerted by the floor. I face the following problem: If the character is initially at a height, he acquires velocity in the -Y direction. Thus, when he hits the floor, he falls through even though normal force is being exerted. I could fix this by setting the Y velocity to 0, and placing him above the floor if he has collided with it. But this often leads to the character getting stuck in the floor or bouncing around it. Is there a better approach ?

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• Regenerating /usr/share/locale/

  - by jbjuly

  Is there a way to regenerate deleted locale on /usr/share/locale without downloading the application again?

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• AABB > AABB collision response?

  - by Levi

  I'm really confused about how to fix this in 3d? I want it so that I can slide along cubes but without getting caught if there's 2 adjacent cubes. I've gotten it so that I can do x collision, with sliding, and y, and z, but I can't do them together, probably because I don't know how to resolve it correctly. e.g. [] [] []^ []O [] O is the player, ^ is the direction the player is moving, with the methods which I was trying I would get stuck between the cubes because the z axis was responding and kicking me out :/. I don't know how to resolve this in all 3 direction, like how would I go about telling which direction I have to resolve in. My previous methods involved me checking 4 points in a axis aligned square around the player, I was checking if these points where inside the cubes and if they where fixing my position, but I couldn't get it working correctly. Help is appreciated. edit: pretend all the blocks are touching.

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• ~/.bashrc return can only 'return' from a function or sourced script

  - by Timothy

  I am trying to setup a OpenStack box to have a look at OpenStack Object Storage (Swift). Looking through the web I found this link; http://swift.openstack.org/development_saio.html#loopback-section I followed the instructions line by line but stuck on step 7 in the "Getting the code and setting up test environment" section. When I execute ~/.bashrc I get; line 6: return: can only 'return' from a function or sourced script. Below is the Line 6 extract from ~/.bashrc. My first reaction is to comment this line out, but I dont know what it does. Can anyone help? #If not running interactively, dont't do anything [ -z "$PS1" ] && return I'm running Ubuntu 12.04 as a VM on Hyper-v if knowing that is useful.

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