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  • Django comparing model instances for equality

    - by orokusaki
    I understand that, with a singleton situation, you can perform such an operation as: spam == eggs and if spam and eggs are instances of the same class with all the same attribute values, it will return True. In a Django model, this is natural because two separate instances of a model won't ever be the same unless they have the same .pk value. The problem with this is that if a reference to an instance has attributes that have been updated by middleware somewhere along the way and it hasn't been saved, and you're trying to it to another variable holding a reference to an instance of the same model, it will return False of course because they have different values for some of the attributes. Obviously I don't need something like a singleton , but I'm wondering if there some official Djangonic (ha, a new word) method for checking this, or if I should simply check that the .pk value is the same with: spam.pk == eggs.pk I'm sorry if this was a huge waste of time, but it just seems like there might be a method for doing this, and something I'm missing that I'll regret down the road if I don't find it.

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  • PHP Retrieve Cookie which was not set with setcookie

    - by Martin
    I have the following problem - a third party software is setting a cookie with the login credentials and then forward the user to my app. I now need to retrieve the cookie values: The problem is - I can do this easily in the Frontend/AS3 with var ticket : String = CookieUtil.getCookie( 'ticket' ).toString(); but in PHP, the cookie is not within the $_COOKIES array. The cookie values are: Name: ticket Domain: .www.myserver.com Path : / Send for: encrypted connections only Expires: at end of session The one I see, and set before in PHP is: Name: myCookie Host: www.myserver.com Path : / Send for: any type of connection Expires: at end of session Actually, since host/domain are both the same, it should be visible in the PHP script, since it is running on this domain. Any thoughts? Thankx Martin

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  • What can cause legit MySql INSERT INTO command to fail?

    - by Makis
    I can't figure out what's causing my INSERT INTO's to fail to certain table in MySql. I can manage them to other tables. The table looks like: CREATE TABLE IF NOT EXISTS `Match` ( `id` int(11) NOT NULL AUTO_INCREMENT, `match_no` int(11) NOT NULL, `season` int(11) NOT NULL, `hometeam` int(11) NOT NULL, `awayteam` int(11) NOT NULL, PRIMARY KEY (`id`), KEY `match_no` (`match_no`), KEY `season` (`season`), KEY `hometeam` (`hometeam`), KEY `awayteam` (`awayteam`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ; And the command is INSERT INTO Match (`match_no`, `season`, `hometeam`, `awaytem`) VALUES (1, 1, 2, 3) All I get is: 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'Match (match_no, season, hometeam, awaytem) VALUES (1, 1, 2, 3)' at line 1 I have checked the manual and half-a-dozen examples from the web and whatnought and tried all sorts of changes to the syntax in case there is some MySql specific oddity, but nothing seems to work.

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  • Nokia présente son smartphone sous MeeGo, le N9 sera commercialisé dans le courant de l'année

    Nokia présente son smartphone sous MeeGo Le N9 sera commercialisé dans le courant de l'année Pour une bonne surprise, c'est une bonne surprise. Même si le bruit courrait depuis quelques jours. Nokia vient d'annoncer son premier (et certainement unique) smartphone sous MeeGo : le N9. [IMG]http://ftp-developpez.com/gordon-fowler/N9/N93.png[/IMG] La présentation a eu lieu lors du Nokia Connections, le salon de l'entreprise qui se tient actuellement à Singapour. Le N9 se veut « beau et simple » avec des « possibilités infinies ». Simple, il l'est puisque la navigation se fait ex...

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  • Identity R2 in London Oct 24th with Amit Jasuja

    - by Naresh Persaud
    Join Amit Jasuja, Senior Vice President Identity Management and Security, Oracle, and Peter Boyle, Head of Identity Services, BT in London on 24th October 2012 for the UK launch of Oracle Identity Management 11gR2. You’ll learn more about the evolution of this exceptional business solution and get the unique opportunity to network with existing Oracle customers and speak directly with Oracle product experts The agenda includes: An overview of capabilities Product demonstrations Customer presentations An interactive panel discussion Amit Jasuja will also be available for 1:1 meetings. Please email [email protected] to request a meeting with Amit. Click here to Register. 

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  • Why was Objective-C popularity so sudden on TIOBE index?

    - by l46kok
    I'd like to ask a question that is pretty similar to the one being asked here, but for Objective-C. According to TIOBE rankings, the rise of popularity of Objective-C is unprecedented. This is obviously tied to the popularity of Apple products, but I feel like this might be a hasty conclusion to make since it doesn't really explain the stagnant growth of Java (1. There are way more Android O/S devices distributed worldwide, 2. Java is used in virtually every platform one can imagine) Now I haven't programmed in Objective-C at all, but I'd like to ask if there are any unique features or advantages about the language itself compared to other prevalent languages such as C++, Java, C#, Python etc. What are some other factors that contributed into the rise of Objective-C in this short span of time?

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  • OperationalError: foreign key mismatch

    - by Niek de Klein
    I have two tables that I'm filling, 'msrun' and 'feature'. 'feature' has a foreign key pointing to the 'msrun_name' column of the 'msrun' table. Inserting in the tables works fine. But when I try to delete from the 'feature' table I get the following error: pysqlite2.dbapi2.OperationalError: foreign key mismatch From the rules of foreign keys in the manual of SQLite: - The parent table does not exist, or - The parent key columns named in the foreign key constraint do not exist, or - The parent key columns named in the foreign key constraint are not the primary key of the parent table and are not subject to a unique constraint using collating sequence specified in the CREATE TABLE, or - The child table references the primary key of the parent without specifying the primary key columns and the number of primary key columns in the parent do not match the number of child key columns. I can see nothing that I'm violating. My create tables look like this: DROP TABLE IF EXISTS `msrun`; -- ----------------------------------------------------- -- Table `msrun` -- ----------------------------------------------------- CREATE TABLE IF NOT EXISTS `msrun` ( `msrun_name` VARCHAR(40) PRIMARY KEY NOT NULL , `description` VARCHAR(500) NOT NULL ); DROP TABLE IF EXISTS `feature`; -- ----------------------------------------------------- -- Table `feature` -- ----------------------------------------------------- CREATE TABLE IF NOT EXISTS `feature` ( `feature_id` VARCHAR(40) PRIMARY KEY NOT NULL , `intensity` DOUBLE NOT NULL , `overallquality` DOUBLE NOT NULL , `charge` INT NOT NULL , `content` VARCHAR(45) NOT NULL , `msrun_msrun_name` VARCHAR(40) NOT NULL , CONSTRAINT `fk_feature_msrun1` FOREIGN KEY (`msrun_msrun_name` ) REFERENCES `msrun` (`msrun_name` ) ON DELETE NO ACTION ON UPDATE NO ACTION); CREATE UNIQUE INDEX `id_UNIQUE` ON `feature` (`feature_id` ASC); CREATE INDEX `fk_feature_msrun1` ON `feature` (`msrun_msrun_name` ASC); As far as I can see the parent table exists, the foreign key is pointing to the right parent key, the parent key is a primary key and the foreign key specifies the primary key column. The script that produces the error: from pysqlite2 import dbapi2 as sqlite import parseFeatureXML connection = sqlite.connect('example.db') cursor = connection.cursor() cursor.execute("PRAGMA foreign_keys=ON") inputValues = ('example', 'description') cursor.execute("INSERT INTO `msrun` VALUES(?, ?)", inputValues) featureXML = parseFeatureXML.Reader('../example_scripts/example_files/input/featureXML_example.featureXML') for feature in featureXML.getSimpleFeatureInfo(): inputValues = (featureXML['id'], featureXML['intensity'], featureXML['overallquality'], featureXML['charge'], featureXML['content'], 'example') # insert the values into msrun using ? for sql injection safety cursor.execute("INSERT INTO `feature` VALUES(?,?,?,?,?,?)", inputValues) connection.commit() for feature in featureXML.getSimpleFeatureInfo(): cursor.execute("DELETE FROM `feature` WHERE feature_id = ?", (str(featureXML['id']),))

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  • PHP security regarding login

    - by piers
    I have read a lot about PHP login security recently, but many questions on Stack Overflow regarding security are outdated. I understand bcrypt is one of the best ways of hashing passwords today. However, for my site, I believe sha512 will do very well, at least to begin with. (I mean bcrypt is for bigger sites, sites that require high security, right?) I´m also wonder about salting. Is it necessary for every password to have its own unique salt? Should I have one field for the salt and one for the password in my database table? What would be a decent salt today? Should I join the username together with the password and add a random word/letter/special character combination to it? Thanks for your help!

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  • How do you implement Software Transactional Memory?

    - by Joseph Garvin
    In terms of actual low level atomic instructions and memory fences (I assume they're used), how do you implement STM? The part that's mysterious to me is that given some arbitrary chunk of code, you need a way to go back afterward and determine if the values used in each step were valid. How do you do that, and how do you do it efficiently? This would also seem to suggest that just like any other 'locking' solution you want to keep your critical sections as small as possible (to decrease the probability of a conflict), am I right? Also, can STM simply detect "another thread entered this area while the computation was executing, therefore the computation is invalid" or can it actually detect whether clobbered values were used (and thus by luck sometimes two threads may execute the same critical section simultaneously without need for rollback)?

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  • Is there a way to create a new instance for IRequestDictionary and IStringList on .NET?

    - by Ronie
    We are working on a C# DLL that stores the values of a Classic ASP Session. Everything is okay but some QueryStrings being stored in Session. Problem is: we are able to read the QueryString from the DLL using IRequestDictionary and IStringList, but we can't find a way to recreate them the next time a page ask for them. We have stored all information necessary to recreate them. So, the question is: Is it possible to instantiate and set their values back? Is there any other option?

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  • jQuery - change a list of elements to an associative array

    - by Brian M. Hunt
    Given an associative array (of the sort returned by jQuery.serializeArray()) like this: [ { 'name': 'abc', 'value': 'aaa', '__proto__': [Object] }, { 'name': 'def', 'value': 'bbb', '__proto__': [Object] }, { 'name': 'abc', 'value': 'ccc', '__proto__': [Object] } ] How can one convert this, using either jQuery or just javascript, to an associative array of name: [values] like this: { 'abc': ['aaa', 'ccc'], 'def': ['bbb'] } This seems to essentially be the inverse of this question: Build associative array based on values of another associative array... but in Javascript (not PHP). I wasn't able to find this question on Stackoverflow, though I thought it would have been asked. Thank you for reading. Brian

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  • WebCenter Content shared folders for clustering

    - by Kyle Hatlestad
    When configuring a WebCenter Content (WCC) cluster, one of the things which makes it unique from some other WebLogic Server applications is its requirement for a shared file system.  This is actually not any different then 10g and previous versions of UCM when it ran directly on a JVM.  And while it is simple enough to say it needs a shared file system, there are some crucial details in how those directories are configured. And if they aren't followed, you may result in some unwanted behavior. This blog post will go into the details on how exactly the file systems should be split and what options are required. [Read More]

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  • C# MVC: User Password Reset Controller: Issues with email addresses as usernames

    - by 109221793
    Hi guys, I have written the code below for resetting users passwords (am using the aspnet membership api) in an C# MVC application, and tested successfully on a sample tutorial application (MVC Music Store). Skip to the end if you wish to read problem description first. InactiveUsers View (Partial View) <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<System.Web.Security.MembershipUserCollection>" %> <table class="normal" style="width: 100%; background-color: White;"> <tr> <th>User Name</th> <th>Last Activity date</th> <th>Locked Out</th> </tr> <%foreach (MembershipUser user in Model){ %> <tr> <td><%: Html.RouteLink(user.UserName, "AdminPassword", new { username = user.UserName }) %></td> <td><%: user.LastActivityDate %></td> <td><%: user.IsLockedOut %></td> </tr> <% }%> </table> InactiveUsers Controller public ActionResult InactiveUsers() { var users = Membership.GetAllUsers(); return View(users); } changeUserPassword GET and POST Controllers public ActionResult changeUserPassword(string username) { ViewData["username"] = username; return View(); } [HttpPost] public ActionResult changeUserPassword(ChangePasswordModel model, FormCollection values) { string username = values["username"]; string password = values["password"]; string confirmPassword = values["confirmPassword"]; MembershipUser mu = Membership.GetUser(username); if (password == confirmPassword) { if (mu.ChangePassword(mu.ResetPassword(), password)) { return RedirectToAction("Index", "ControlPanel"); } else { ModelState.AddModelError("", "The current password does not meet requirements"); } } return View(); } I also modified the Global.asax.cs file to cater for my route in the InactiveUsers partial: // Added in 10/01/11 RouteTable.Routes.MapRoute( "AdminPassword", // routename "ControlPanel/changeUserPassword/{username}", new { controller = "ControlPanel", action = "changeUserPassword", username = UrlParameter.Optional } ); // END Now, when I tested on the MVC Music Store, all of my usernames were just words, e.g. Administrator, User, etc. However now I am applying this code to a situation in my workplace and it's not working out quite as planned. The usernames used in my workplace are actually email addresses and I think this is what is causing the problem. When I click on the RouteLink in the partial InactiveUsers view, it should bring me to the reset password page with a url that looks like this: http://localhost:83/ControlPanel/changeUserPassword/[email protected], HOWEVER, what happens when I click on the RouteLink is an error is thrown to say that the view changeUserPassword cannot be found, and the URL looks like this: http://localhost:83/ControlPanel/changeUserPassword/example1%40gmail.com - See how the '@' symbol gets messed up? I've also debugged through the code, and in my GET changeUserPassword, the username is populating correctly: [email protected], so I'm thinking it's just the URL that's messing it up? If I type in the URL manually, the changeUserPassword view displays, however the password reset function does not work. An 'Object reference not set to an instance of an object' exception is thrown at the if (mu.ChangePassword(mu.ResetPassword(), password)) line. I think if I could solve the first issue (URL '@' symbol problem) it might help me along with my second issue. Any help would be appreciated :) Stack Trace - as requested Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [InvalidOperationException: The view 'changeUserPassword' or its master was not found. The following locations were searched: ~/Views/ControlPanel/changeUserPassword.aspx ~/Views/ControlPanel/changeUserPassword.ascx ~/Views/Shared/changeUserPassword.aspx ~/Views/Shared/changeUserPassword.ascx] System.Web.Mvc.ViewResult.FindView(ControllerContext context) +495 System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +208 System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) +39 System.Web.Mvc.<>c__DisplayClass14.<InvokeActionResultWithFilters>b__11() +60 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +391 System.Web.Mvc.<>c__DisplayClass16.<InvokeActionResultWithFilters>b__13() +61 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +285 System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +830 System.Web.Mvc.Controller.ExecuteCore() +136 System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +111 System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +39 System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__4() +65 System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +44 System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +42 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +141 System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +54 System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40 System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +52 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +38 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8841105 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +184

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  • convert server side vb.net to client side javascript

    - by rockinthesixstring
    I've got a function I wrote quite some time ago that works fine, but I'd like to speed up the process and lessen server load by doing the same job in Javascript. I seem to be able to GET textbox values ok, but I can't seem to SET textbox values (I'm'-a JS noob). Can anyone lend a hand in converting my VB.NET code to it's JS equivalent? Protected Sub txtSellingPrice_TextChanged(ByVal sender As Object, ByVal e As EventArgs) _ Handles txtSellingPrice.TextChanged Dim SellingPrice As Double = Double.Parse(txtSellingPrice.Text.Replace("$", "")) Dim BallanceSheet As Double = If(txtBalanceSheet.Text = "", 0, Double.Parse(txtBalanceSheet.Text.Replace("$", ""))) Dim DownPayment As Double = If(txtDownPayment.Text = "", 0, Double.Parse(txtDownPayment.Text.Replace("$", ""))) txtGoodWill.Text = SellingPrice - BallanceSheet txtBalance.Text = SellingPrice - DownPayment txtSellingPriceMult.Text = SellingPrice End Sub I've got this so far, but I'm not sure how to get much further. function txtSellingPrice_OnChange() { var txtSellingPrice = document.getElementById('<%=txtSellingPrice.ClientID %>') var txtBalanceSheet = document.getElementById('<%=txtBalanceSheet.ClientID %>') var txtDownPayment = document.getElementById('<%=txtDownPayment.ClientID %>') }

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  • Remote Development With Solaris Studio

    - by rchrd
    A new technical article has been published on OTN: How to Develop Code from a Remote Desktop with Oracle Solaris Studio by Igor Nikiforov This article describes the remote desktop feature of the Oracle Solaris Studio IDE, and how to use it to compile, run, debug, and profile your code running on remote servers. Published May 2012 Introducing the IDE Desktop Distribution Determining Whether You Need the Desktop Distribution Creating the Desktop Distribution Using the Desktop Distribution See Also About the Author Introducing the IDE Desktop Distribution Sun Studio 12 Update 1 introduced a unique remote development feature that allows you to run just one instance of the IDE while working with multiple servers and platforms. For example, you could run the IDE on an x86-based laptop or desktop running Oracle Linux, and use a SPARC-based server running Oracle Solaris 10 to compile, run, debug, and profile your code. The IDE works seamlessly just as if you had the Oracle Solaris operating system on your laptop or desktop. ....read more

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  • jquery: why a selector returns me an array, but attribute doesnt?

    - by Shlomi.A.
    Hi. I'm trying to understand JQ better. I'm calling an JQ object $(".FamiliesList li li span[class!='']").prev().find('option:selected') this returns back to me an array of all the options that their span parent's brother has a classname. [option, option] Now- I want to return back an array of the option's values $(".FamiliesList li li span[class!='']").prev().find('option:selected').attr('value') this returns back to me only the first child value, and a full array of the values. Why? I would appreciate to receive help and understand jq better :) Thanks.

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  • Problems with contenttypes when loading a fixture in Django

    - by gerdemb
    I am having trouble loading Django fixtures into my MySQL database because of contenttypes conflicts. First I tried dumping the data from only my app like this: ./manage.py dumpdata escola > fixture.json but I kept getting missing foreign key problems, because my app "escola" uses tables from other applications. I kept adding additional apps until I got to this: ./manage.py dumpdata contenttypes auth escola > fixture.json Now the problem is the following constraint violation when I try to load the data as a test fixture: IntegrityError: (1062, "Duplicate entry 'escola-t23aluno' for key 2") It seems the problem is that Django is trying to dynamically recreate contenttypes with different primary key values that conflict with the primary key values from the fixture. This appears to be the same as bug documented here: http://code.djangoproject.com/ticket/7052 The problem is that the recommended workaround is to dump the contenttypes app which I'm already doing!? What gives? If it makes any difference I do have some custom model permissions as documented here: http://docs.djangoproject.com/en/dev/ref/models/options/#permissions

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  • SQL SERVER – Curious Case of Disappearing Rows – ON UPDATE CASCADE and ON DELETE CASCADE – Part 1 of 2

    - by pinaldave
    Social media has created an Always Connected World for us. Recently I enrolled myself to learn new technologies as a student. I had decided to focus on learning and decided not to stay connected on the internet while I am in the learning session. On the second day of the event after the learning was over, I noticed lots of notification from my friend on my various social media handle. He had connected with me on Twitter, Facebook, Google+, LinkedIn, YouTube as well SMS, WhatsApp on the phone, Skype messages and not to forget with a few emails. I right away called him up. The problem was very unique – let us hear the problem in his own words. “Pinal – we are in big trouble we are not able to figure out what is going on. Our product details table is continuously loosing rows. Lots of rows have disappeared since morning and we are unable to find why the rows are getting deleted. We have made sure that there is no DELETE command executed on the table as well. The matter of the fact, we have removed every single place the code which is referencing the table. We have done so many crazy things out of desperation but no luck. The rows are continuously deleted in a random pattern. Do you think we have problems with intrusion or virus?” After describing the problems he had pasted few rants about why I was not available during the day. I think it will be not smart to post those exact words here (due to many reasons). Well, my immediate reaction was to get online with him. His problem was unique to him and his team was all out to fix the issue since morning. As he said he has done quite a lot out in desperation. I started asking questions from audit, policy management and profiling the data. Very soon I realize that I think this problem was not as advanced as it looked. There was no intrusion, SQL Injection or virus issue. Well, long story short first - It was a very simple issue of foreign key created with ON UPDATE CASCADE and ON DELETE CASCADE.  CASCADE allows deletions or updates of key values to cascade through the tables defined to have foreign key relationships that can be traced back to the table on which the modification is performed. ON DELETE CASCADE specifies that if an attempt is made to delete a row with a key referenced by foreign keys in existing rows in other tables, all rows containing those foreign keys are also deleted. ON UPDATE CASCADE specifies that if an attempt is made to update a key value in a row, where the key value is referenced by foreign keys in existing rows in other tables, all of the foreign key values are also updated to the new value specified for the key. (Reference: BOL) In simple words – due to ON DELETE CASCASE whenever is specified when the data from Table A is deleted and if it is referenced in another table using foreign key it will be deleted as well. In my friend’s case, they had two tables, Products and ProductDetails. They had created foreign key referential integrity of the product id between the table. Now the as fall was up they were updating their catalogue. When they were updating the catalogue they were deleting products which are no more available. As the changes were cascading the corresponding rows were also deleted from another table. This is CORRECT. The matter of the fact, there is no error or anything and SQL Server is behaving how it should be behaving. The problem was in the understanding and inappropriate implementations of business logic.  What they needed was Product Master Table, Current Product Catalogue, and Product Order Details History tables. However, they were using only two tables and without proper understanding the relation between them was build using foreign keys. If there were only two table, they should have used soft delete which will not actually delete the record but just hide it from the original product table. This workaround could have got them saved from cascading delete issues. I will be writing a detailed post on the design implications etc in my future post as in above three lines I cannot cover every issue related to designing and it is also not the scope of the blog post. More about designing in future blog posts. Once they learn their mistake, they were happy as there was no intrusion but trust me sometime we are our own enemy and this is a great example of it. In tomorrow’s blog post we will go over their code and workarounds. Feel free to share your opinions, experiences and comments. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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  • How can I get image data from QTKit without color or gamma correction in Snow Leopard?

    - by Nick Haddad
    Since Snow Leopard, QTKit is now returning color corrected image data from functions like QTMovies frameImageAtTime:withAttributes:error:. Given an uncompressed AVI file, the same image data is displayed with larger pixel values in Snow Leopard vs. Leopard. Currently I'm using frameImageAtTime to get an NSImage, then ask for the tiffRepresentation of that image. After doing this, pixel values are slightly higher in Snow Leopard. For example, a file with the following pixel value in Leopard: [0 180 0] Now has a pixel value like: [0 192 0] Is there any way to ask a QTMovie for video frames that are not color corrected? Should I be asking for a CGImageRef, CIImage, or CVPixelBufferRef instead? Is there a way to disable color correction altogether prior to reading in the video files? I've attempted to work around this issue by drawing into a NSBitmapImageRep with the NSCalibratedColroSpace, but that only gets my part of the way there: // Create a movie NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys : nsFileName, QTMovieFileNameAttribute, [NSNumber numberWithBool:NO], QTMovieOpenAsyncOKAttribute, [NSNumber numberWithBool:NO], QTMovieLoopsAttribute, [NSNumber numberWithBool:NO], QTMovieLoopsBackAndForthAttribute, (id)nil]; _theMovie = [[QTMovie alloc] initWithAttributes:dict error:&error]; // .... NSMutableDictionary *imageAttributes = [NSMutableDictionary dictionary]; [imageAttributes setObject:QTMovieFrameImageTypeNSImage forKey:QTMovieFrameImageType]; [imageAttributes setObject:[NSArray arrayWithObject:@"NSBitmapImageRep"] forKey: QTMovieFrameImageRepresentationsType]; [imageAttributes setObject:[NSNumber numberWithBool:YES] forKey:QTMovieFrameImageHighQuality]; NSError* err = nil; NSImage* image = (NSImage*)[_theMovie frameImageAtTime:frameTime withAttributes:imageAttributes error:&err]; // copy NSImage into an NSBitmapImageRep (Objective-C) NSBitmapImageRep* bitmap = [[image representations] objectAtIndex:0]; // Draw into a colorspace we know about NSBitmapImageRep *bitmapWhoseFormatIKnow = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:NULL pixelsWide:getWidth() pixelsHigh:getHeight() bitsPerSample:8 samplesPerPixel:4 hasAlpha:YES isPlanar:NO colorSpaceName:NSCalibratedRGBColorSpace bitmapFormat:0 bytesPerRow:(getWidth() * 4) bitsPerPixel:32]; [NSGraphicsContext saveGraphicsState]; [NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithBitmapImageRep:bitmapWhoseFormatIKnow]]; [bitmap draw]; [NSGraphicsContext restoreGraphicsState]; This does convert back to a 'Non color corrected' colorspace, but the color values NOT are exactly the same as what is stored in the Uncompressed AVI files we are testing with. Also this is much less efficient because it is converting from RGB - "Device RGB" - RGB. Also, I am working in a 64-bit application, so dropping down to the Quicktime-C API is not an option. Thanks for your help.

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  • Bit manipulation, permutate bits

    - by triktae
    Hi. I am trying to make a loop that loops through all different integers where exactly 10 of the last 40 bits are set high, the rest set low. The reason is that I have a map with 40 different values, and I want to sum all different ways ten of these values can be multiplied. (This is just out of curiosity, so it's really the "bitmanip"-loop that is of interest, not the sum as such.) If I were to do this with e.g. 2 out of 4 bits, it would be easy to set all manually, 0011 = 7, 0101 = 5, 1001 = 9, 0110 = 6, 1010 = 10, 1100 = 12, but with 10 out of 40 I can't seem to find a method to generate these effectively. I tried, starting with 1023 ( = 1111111111 in binary), finding a good way to manipulate this, but with no success. I've been trying to do this in C++, but it's really the general method(if any) that is of interest. I did some googling, but with little success, if anyone has a good link, that would of course be appreciated too. :)

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  • How to use ORDER BY, LOWER .. in SQL SERVER 2008 with non-unicode data

    - by hgulyan
    Hi, The question is about Armenian. I'm using sql server 2005, collation SQL_Latin1_General_CP1_CI_AS, data mostly is in Armenian and we can't use unicode. I tested on ms sql 2008 with a windows collation for armenian language ( Cyrillic_General_100_ ), I have found here, ( http://msdn.microsoft.com/en-us/library/ms188046.aspx ) but it didn't help. I have a function, that orders hex values and a lower function, which takes each char in each string and converts it to it's lower form, but it's not acceptable solution, it works really slow, calling that functions on every column of a huge table. Is there any solution for this issue not using unicode and not working with hex values manually?

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  • MySQL INSERT with table alias

    - by Max Kielland
    Hello, I happen to have two columns having the same name as two SQL reserved words, Key and Value. When using the SELECT statement I can create a table alias and solve it that way. Now I'm trying to INSERT data and it seems like you can't create table alias in the INSERT statement. INSERT INTO attributeStrings ats (ats.ItemID,ats.Key,ats.Value) VALUES (3,'Categories','TechGUI') I get error at 'ats (ats.ItemID,ats.Key,ats.Value) VALUES (3,'Categories','TechGUI')' indicating that alias can't be created. Are there any ways to solve this without renaming the columns Key and Value?

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  • ASP.NET Gridview Checkbox value to DataTable

    - by Mark
    Hey all, First off, im using a checkbox to highlight a true or false value from a dataset which I want to be able to change it. Unfortunately databinding the DataTable to the GridView checkboxes doesnt work (as you probably know) as it requires it to be in "edit" mode. The way I've gotten round this is having the checkbox reading the data table value seperately rather than being databound and locked: Checked='<%# Convert.ToBoolean(Eval("myValue")) %>' So that solves checkbox values from DataTable - GridView, now I need to do the opposite having the changed checkbox values go from GridView - DataTable as it is not ready to submit it to my data source (SQL) just yet. I figure I need to run a loop through the GridView rows, thats a give'un, what I can't figure out is how to replace/update just a single value in a row of a DataTable , only the ability to add or remove an entire row by the looks of things (something I don't want to do). So can anyone offer a workaround? Or is there a way to have a databound but always editable checkbox in a gridview?

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  • Brazil Identity Customer Forum a Huge Success

    - by Tanu Sood
    As we continue to execute on the global Identity Management 11gR2 launch event series, if the success of the Brazil event is any indication, the London event coming up on October 24th will be a blowout! These events provide a unique opportunity to hear directly from and network with existing (and successful) Oracle Identity Manaagement customers, as well as connect directly with product & technology experts. The Identity Forum agenda includes presentation from product experts on the latest release of Oracle Identity Management, followed by live product demonstration and local customer presentations or panel discussions with both customers and implementation partners. The very successful launch event in Brazil concluded yesterday. Here are some pictures from the event. Want to be part of the identity Customer Forum? Then do connect with your local Oracle representative or let us know via this blog or @oracleidm. We hope to see you soon at an event near you.  

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  • Python In-memory table

    - by nsharish
    What is the right way to forming in-memory table in python with direct lookups for rows and columns.I thought of using dict of dicts this way, class Table(dict): def __getitem__(self, key): if key not in self: self[key]={} return dict.__getitem__(self, key) table = Table() table['row1']['column1'] = 'value11' table['row1']['column2'] = 'value12' table['row2']['column1'] = 'value21' table['row2']['column2'] = 'value22' >>>table {'row1':{'column1':'value11','column2':'value12'},'row2':{'column1':'value21','column2':'value22'}} I had difficulty in looking up for values in columns. >>>'row1' in table True >>>'value11' in table['row1'].values() True Now how do I do lookup if 'column1' has 'value11' Is this method of forming tables wrong?Is there a better way to implement such tables with easier lookups?.Thanks

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