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  • How to stop attributes from being pickled in Python

    - by Ries
    I am using gnosis.xml.pickle to convert an object of my own class to xml. The object is initialized so that: self.logger = MyLogger() But when I do dump the object to a string I get an exception stating that the pickler encountered an unpickleable type . Is there a way to 'tag' the logger attribute so that pickler will know not to try and pickle that attribute?

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  • How to find out if a method exists in Obj-C when given an NSString

    - by Justin
    I have a method as an NSString *. If it exists, I want to call it, and if not, do nothing. SEL eventSelector = NSSelectorFromString(eventSelectorStr); if ([delegate respondsToSelector:eventSelector]) { [delegate performSelector:eventSelector]; [delegate adapterDidFinishAdRequest:self]; } else { // Does not implement selector } This code does not work, since NSSelectorFromString will register the string as a selector, so respondsToSelector:eventSelector will cause a crash because the selector is actually invalid.

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  • memory management objective c - returning objects from methods

    - by geeth
    Hi, Please clarify, how to deal with returned objects from methods? Below, I get employee details from GeEmployeetData function with autorelease, 1. Do I have to retain the returned object in Process method? 2. Can I release *emp in Process fucntion? -(void) Process { Employee *emp = [self GeEmployeetData] } +(Employee*) GeEmployeetData{ Employee *emp = [[Employee alloc]init]; //fill entity return [emp autorelease]; }

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  • Xcode 4.2 MultiView App

    - by doc92606
    i am a fairly new iOS programmer, and I've lately been having trouble with my multi view app. Im using a paged based application with two view. I just don't seem to be able to make an IBAction that allows me to switch between each view. i tried using: [self presentModalViewController: SecondViewController animated: YES]; but i keep getting an error that says: "use of undeclared identifier 'SecondViewController'

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  • Hyperlink (a href) with a pound sign at the end doesn't do anything in Firefox

    - by chiurox
    I have a link that is somewhat like this: <a href="------.html#video">Text</a> It works fine in IE but not in Firefox. In Firefox it shows the new URL on the address bar but doesn't update or change anything in terms of content. Somehow the "#" is causing Firefox to ignore updating the page. I tried using Javascript "window.location" and "window.location.href" and all sorts of other things but it still doesn't work. Does anyone have any idea how to fix it? Thanks!

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  • Program to change/obfuscate all hashes (MD5/SHA1) in a directory tree?

    - by anon
    Hi fellas, A) Are there any FOSS programs out there that can manage to hashchange all files in a directory tree? B) Failing that, what methods could be used to develop this capability in a (crappy) self-written program without requiring the program to be sophisticated and content-aware? Is there any (roughly) universally safe location within a file (for example, around EOF?) where on could one simply append/add psuedorandom data so the resulting hash is different? Is there a better/more elegant solution? Muchos gracias

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  • What are the typical reasons Javascript developed on IE fails on Firefox?

    - by lwburk
    Inspired by this post it occurs to me that I often suffer from the opposite problem. That is, I've got code in a legacy application designed only for Internet Explorer and I need to get it to work in Firefox. For example, I recently worked on an app that made heavy use of manually simulating click events, like this: select.options[0].click(); ...which completely broke the application in Firefox. But you wouldn't find that information in the answers to the other question, because that's not something you'd ever even attempt if your app first targeted Firefox. What other things should a developer updating a legacy IE-only application look for when migrating to modern browsers?

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  • core plot error?

    - by senthilmuthu
    hi, i am using core plot framework,when i run following code in viewdidload gives crash.the view is as custom view... graph = [(CPXYGraph *)[CPXYGraph alloc] initWithFrame:CGRectZero]; CPLayerHostingView *hostingView = (CPLayerHostingView *)self.view; hostingView.hostedLayer = graph;**(gives error)** what i have to do? any help please?

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  • Create a ASP.NET smart gridview

    - by harold-sota
    I wont to create a User Control based in gridview that have the edit add delete incorporate, the problem is these: In the admin part of my web site i have to repeat the same action for view add delete update the data for different datasource. I wont to create a generic gridview that have incorporate these action. The gridview can take a xml file for configure him self dependently of the request for desplay the data. Any ideas how i can do it?

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  • Strings, regexp and files

    - by A Moose
    <?php $iprange = array( "^12\.34\.", "^12\.35\.", ); foreach($iprange as $var) { if (preg_match($var, $_SERVER['REMOTE_ADDR'])) { I'm looking to have a list that will constitute each of the values inside the array. Let's call it iprange.txt, from which I would extract the variable $iprange. I would also be updating the file with new ranges, but I also want to convert those strings to regexp if that's something that's needed in php, as it is in the above example. If you could help me with the two following issues: I understand that somehow I would be using an array include, but I'm not sure how to implement it. I would like to run a cron that would update the text file and turn it into a regexp acceptable for use in the above example, if you think regexp is a good idea and there isn't another option. I know how to apply a cron in a directadmin gui, but I don't know what the cronned file would look like.

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  • Add custom method to string object [closed]

    - by cru3l
    Possible Duplicate: Can I add custom methods/attributes to built-in Python types? In Ruby you can override any built-in object class with custom method, like this: class String def sayHello return self+" is saying hello!" end end puts 'JOHN'.downcase.sayHello # >>> 'john is saying hello!' How can i do that in python? Is there a normally way or just hacks?

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  • Django1.1 file based session backend multi-threaded solution

    - by Satoru.Logic
    Hi, all. I read django.contrib.sessions.backend.file today, in the save method of SessionStore there is something as the following that's used to achieve multi-threaded saving integrity: output_file_fd, output_file_name = tempfile.mkstemp(dir=dir, prefix=prefix + '_out_') renamed = False try: try: os.write(output_file_fd, self.encode(session_data)) finally: os.close(output_file_fd) os.rename(output_file_name, session_file_name) renamed = True finally: if not renamed: os.unlink(output_file_name) I don't quite understand how this solve the integrity problem.

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  • dependson option does not work in knitr?

    - by umair durrani
    Data File Name of the data file = toto.rmd Contains following: ##1st ```{r clock, cache=TRUE} x <- 600 x ``` ##2nd ```{r, cache=TRUE, cache.path="toto_cache/", dependson="clock"} x+5 ``` Problem The second chunk is not being updated. Previously x was 500, after updating it to 600, I get following after knit HTML in RSTUDIO: 1st x <- 600 x ## [1] 600 2nd x+5 ## [1] 505 What am I missing here? Session Info > sessionInfo() R version 3.0.3 (2014-03-06) Platform: x86_64-w64-mingw32/x64 (64-bit) locale: [1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United States.1252 [3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C [5] LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] ggplot2_0.9.3.1 loaded via a namespace (and not attached): [1] colorspace_1.2-3 dichromat_2.0-0 digest_0.6.4 evaluate_0.5.5 [5] formatR_0.10 grid_3.0.3 gtable_0.1.2 htmltools_0.2.4 [9] knitr_1.6 labeling_0.2 MASS_7.3-29 munsell_0.4.2 [13] plyr_1.8.1 proto_0.3-10 RColorBrewer_1.0-5 Rcpp_0.11.0 [17] reshape2_1.2.2 rmarkdown_0.2.64 scales_0.2.3 stringr_0.6.2 [21] tools_3.0.3 yaml_2.1.10 >

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  • wrap text around image control in C#.Net

    - by Ravi
    Hi, I am working on C#.DotNet windows application project, here i am using Infragistics control. In this project i want to add image over text control. This image contains two portion, 35% of image have white color another 65% of image have green color.In this image 2nd portion(green color) i have to display dynamic string , this string size may dynamically updating. But this string dont go first portion(white color) of image. For that i am using UltraLabel control. I have add image in UltraLabel ImageBackground property and TextHAlign set as Right. But here small 15 charecter string means appear only second portion(green color), 20 charecter string means appeaer second & first portion. I don't want to display first portion of image. Thanks

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  • iPhone - Track three touches

    - by Striker
    Suppose you have three points of contact on the iPhone screen and one of those touches moves... The touchesMoved method will be invoked and the [[event touchesForView:self] count] will be equal to '3' because there are three touches for the event, but how can you distinguish between the touches? For example - find out whether it was the first, second, or third touch which moved? Thanks.

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  • I just can't figure out strcat.

    - by Anonymous
    I know I shouldn't be using that function, and I don't care. Last time I checked the spec for strcat, it said something along the lines of updating the first value as well as returning the same. Now, this is a really stupid question, and I want you to explain it like you're talking to a really stupid person. Why won't this work? char* foo="foo"; printf(strcat(foo,"bar")); EDIT: I don't know the difference between char[] and char*. How would I allocate a string of 255 characters? EDIT 2: OK, OK, so char[number] allocates a string of that many bytes? Makes sense. Thanks.

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  • How to inplement a nightly process in .NET?

    - by Abe Miessler
    I have a set of tasks that I would like to execute every night. These tasks include querying a database, moving and renaming some images and lastly updating a database table. My first thought had been to create a SQL Server job and use xp_cmdshell to move the files but after a bit of research i decided against it. My question now is what is the best way to implement this as a .NET application? Should I create a Windows service? A console application that is scheduled to run once per night? Some other cool way that I don't even know about?

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  • Real time updates in php for a pbbg. (Php, JavaScript, and html)

    - by Darknesschaos
    I am trying to create a PBBG (persistent browser based game) like that of OGame, Space4k, and others. My problem is with the always-updating resource collection and with the building times, as in a time is set when the building, ship, research, and etc completes building and updates the user's profile even if the user is offline. What and/or where should I learn to make this? Should it be a constantly running script in the background Note that I wish to only use PHP, HTML, CSS, JavaScript, and Mysql but will learn something new if needed. Cron jobs or the Windows equivalent seem to be the way, but it doesn't seem right or best to me.c

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  • load the videos in ipod/iphone library but always crash

    - by user262325
    Hello everyone I hope to load the videos in ipod/iphone library and list in UITableView like app 'videos'. the codes show below, but it always cause crash UIImagePickerController *picker=[[UIImagePickerController alloc]init]; picker.sourceType= UIImagePickerControllerSourceTypePhotoLibrary; picker.mediaTypes = [NSArray arrayWithObject:kUTTypeMovie]; picker.delegate = self; Welcome any comment Thanks interdeb

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  • Declare global variables for a batch of execution statements - sql server 2005

    - by Shrewd Demon
    hi, i have an SQL statement wherein i am trying to update the table on the client's machine. the sql statement is as follows: BEGIN TRANSACTION DECLARE @CreatedBy INT SELECT @CreatedBy = [User_Id] FROM Users WHERE UserName = 'Administrator' --//////////////////////////////////////////////////////////////////// --//////////////////////////////////////////////////////////////////// PRINT @CreatedBy --(Works fine here and shows me the output) PRINT N'Rebuilding [dbo].[Some_Master]' ALTER TABLE [dbo].[Some_Master] ADD [CreatedBy] [BIGINT] NULL, [Reason] [VARCHAR](200) NULL GO PRINT @CreatedBy --(does not work here and throws me an error) PRINT N'Updating data in [Some_Master] table' UPDATE Some_Master SET CreatedBy = @CreatedBy COMMIT TRANSACTION but i am getting the following error: Must declare the scalar variable "@CreatedBy". Now i have observed if i write the Print statement above the alter command it works fine and shows me its value, but if i try to print the value after the Alter command it throws me the error i specified above. I dont know why ?? please help! Thank you

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  • Hibernate Query - Get latest versions by timestamp?

    - by Slim
    I have a database that is being used as a sort of version control system. That is, instead of ever updating any rows, I add a new row with the same information. Each row also contains a version column that is a date timestamp, so the only difference is the new row will have a more recent timestamp. What I'm having trouble with is writing an efficient hibernate query to return the latest version of these rows. For the sake of example, these are rows in a table called Product, the timestamped column is version. There are multiple versions of multiple products in the table. So there may be multiple versions (rows) of ProductA, multiple versions of ProductB, etc. And I would like to grab the latest version of each. Can I do this in just a single hibernate query? session.createQuery("select product from Product product where...?"); Or would this require some intermediate steps?

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