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  • Creating DescriptionAttribute on Enumeration Field using System.Reflection.Emit

    - by Manish Sinha
    I have a list of strings which are candidates for Enumerations values. They are Don't send diffs 500 lines 1000 lines 5000 lines Send entire diff The problem is that spaces, special characters are not a part of identifiers and even cannot start with a number, so I would be sanitizing these values to only chars, numbers and _ To keep the original values I thought of putting these strings in the DescriptionAttribute, such that the final Enum should look like public enum DiffBehvaiour { [Description("Don't send diffs")] Dont_send_diffs, [Description("500 lines")] Diff_500_lines, [Description("1000 lines")] Diff_1000_lines, [Description("5000 lines")] Diff_5000_lines, [Description("Send entire diff")] Send_entire_diff } Then later using code I will retrieve the real string associated with the enumeration value, so that the correct string can be sent back the web service to get the correct resource. I want to know how to create the DescriptionAttribute using System.Reflection.Emit Basically the question is where and how to store the original string so that when the Enumeration value is chosen, the corresponding value can be retrieved. I am also interested in knowing how to access DescriptionAttribute when needed.

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  • UITableView: moving a row into an empty section

    - by Frank C
    I have a UITableView with some empty sections. I'd like the user to be able to move a row into them using the standard edit mode controls. The only way I can do it so far is to have a dummy row in my "empty" sections and try to hide it by using tableView:heightForRowAtIndexPath: to give the dummy row a height of zero. This seems to leave it as a 1-pixel row. I can probably hide this by making a special type of cell that's just filled with [UIColor groupTableViewBackgroundColor], but is there a better way? This is all in the grouped mode of UITableView UPDATE: Looks like moving rows into empty sections IS possible without any tricks, but the "sensitivity" is bad enough that you DO need tricks in order to make it usable for general users (who won't be patient enough to slowly hover the row around the empty section until things click)

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  • Is `hg pull --rebase` analogous to `svn update`?

    - by allyourcode
    This question assumes there's a "blessed" central repository that members of a team clone from push to when they have contributions that they want other team members to see pull from when they want to see other people's contributions. etc. If so, I would assume hg update is not analogous to svn update (why would there be two commands that do exactly the same thing?). From what I can gather, hg update more like svn revert. Is that correct? Update: My understanding of rebase is largely based on the "A common case" section on this page: http://mercurial.selenic.com/wiki/RebaseProject

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  • How to make automake less ugly?

    - by Brendan Long
    I recently learned how to use automake, and I'm somewhat annoyed that my compile commands went from a bunch of: g++ -O2 -Wall -c fileName.cpp To a bunch of: depbase=`echo src/Unit.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\ g++ -DHAVE_CONFIG_H -I. -I./src -g -O2 -MT src/Unit.o -MD -MP -MF $depbase.Tpo -c -o src/Unit.o src/Unit.cpp &&\ mv -f $depbase.Tpo $depbase.Po Is there any way to clean this up? I can usually easily pick out warning messages, but now the wall of text to read though is 3x bigger and much weirder. I know what my flags are, so making it just says "Compiling xxx.cpp" for each file would be perfect.

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  • Grails Date Property Editor

    - by Jan
    Hey folks, i'm using the jQuery UI datepicker instead of the <g:datePicker>, which is changing the selected date in a textbox. Now I want to save this neatly back into my database, and came across custom property editors. click me hard to see the topic on StackOverflow However, adding this custom PropertyEditor didn't change anything, dates are still displayed like '2010-01-01 00:00:00.0' and if I try to save a date it crashes with Cannot cast object '05.05.2010' with class 'java.lang.String' to class 'java.util.Date'. Is there any additional magic needed, like a special naming of the textbox or something like that? Thanks for your help, Jan

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  • What is the relationship between recursion functions and memory stack?

    - by Eslam
    is there's a direct relationship between recursive functions and the memory stack, for more explanation consider that code: public static int triangle(int n) { System.out.println(“Entering: n = ” + n); if (n == 1) { System.out.println(“Returning 1”); return 1; } else { int temp = n + triangle(n - 1); System.out.println(“Returning“ + temp); return temp; } }? in this example where will the values 2,3,4,5 be stored until the function returns ? note that they will be returned in LIFO(LastInFirstOut) is these a special case of recursion that deals with the memory stack or they always goes together?

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  • script unable to find directories/files when running from qsub cluster script

    - by user248237
    I'm calling several unix commands and python on a python script from a qsub shell script, meant to run on a cluster. The trouble is that when the script executes, something seems to go awry in the shell, so that directories and files that exist are not found. For example, in the .out output files of qsub I see the following errors: cd: /valid/dir/name: No such file or directory python valid/script/name.py python: can't open file 'valid/script/name.py': [Errno 2] No such file or directory so the script cannot cd into a dir that definitely exist. Similarly, calling python on a python script that definitely exists yields an error. any idea what might be going wrong here, or how I could try to debug this? thanks very much.

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  • Hosting solution for images for website written in PHP

    - by tomaszs
    I've written a website in PHP and it will have ability for users to upload images. My website will have more than 100.000 users. Aprox. 1k users will upload image about 50 KB. And every image will be displayed on this website 5k times so it's transfer of: 1k x 50 KB x 5k = 250 GB per month. So my question is: Do you know any good solution (hosting or CDN network or else) that: will be payed for transfer not space used and no entrance fee will have API to upload images easily with PHP is extremely easy to use will be good for low budget will not require any special, complicated registration and formal things will allow commercial use will allow using this images in website layout ?

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  • popen fails with "sh: <command>: not found"

    - by smallmeans
    I'm developing a server application and I recently encountered this wierd error on a testing server (Debian Squeeze). Every executable I pass to popen fails with a msg: sh: sort: not found // happens to any command This happens regardless whether I point to the full path returned by "type" or keep it short . As mentioned earlier, this happens at only one testing environment, to add confusion, am running the same OS and had no problem whatsoever. Popen is apparently using sh to execute commands, but if I run the same command thru the prompt (bash or sh), everything's fine Thanks in advance (PS: even tried Python os.popen just to nail this head scratcher, and it works!) Edit this is a simple call that fails: $command="tail -10 myfile"; $handle = popen($command.' 2>&1','r'); if($handle){ while (!feof($handle)){ ....//process buffer } } returns: sh: tail: not found

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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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  • There are another way to load MSHTML documents without use Application.ProcessMessages?

    - by douglaslise
    There are another way to load MSHTML documents without use Application.ProcessMessages? To load a document into a IHTMLDocument I need to do this: while Doc.readyState <> 'complete' do Application.ProcessMessages; I want not to process all the message queue during the loading, because I would be changing my application flow, in other words, some messages that should be processed after the loading to be completed can be processed earlier, even before the loading end. There is a special message code that the IHTMLDocument expect to advance in the loading process? Or there is another way to load? Thanks.

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  • confusion about transactions and msdtc

    - by muhan
    I have some basic confusion about how transactions and msdtc work together. I have a basic server/client winforms app. The app uses transactionscope to encapsulate several sql commands that are executed on the sql server. The app seemed to work fine when I enabled msdtc network access on the server only. Then one day it stopped working saying network access was not enabled. Now it seems that I have to enable msdtc network access on both the client computer and server for transactionscope to work. Does the client or server msdtc service do the transaction work? Or maybe its both? Does anyone have guidance on whether msdtc network access is needed on both client and server or just server?

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  • Why does Google's closure library not use real private members?

    - by Thor Thurn
    I've been a JavaScript developer for a while now, and I've always thought that the correct way to implement private members in JavaScript is to use the technique outlined by Doug Crockford here: http://javascript.crockford.com/private.html. I didn't think this was a particularly controversial piece of JavaScript wisdom, until I started using the Google Closure library. Imagine my surprise... the library makes no effort to use Crockford-style information hiding. All they do is use a special naming convention and note "private" members in the documentation. I'm in the habit of assuming that the guys at Google are usually on the leading edge of software quality, so what gives? Is there some downside to following Mr. Crockford's advice that's not obvious?

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  • Higher than high-level web frameworks or CMS's?

    - by Ben
    I'm looking for options that allow very high-level web site development with these special characteristics: not requiring the user to program in a complex programming language not requiring the user to use GUI-like administration areas allow the user to "program" in a lightweight markup language The last point is not only about look and structure of the output but also about creating simple dynamic output. For example: listing pages fetching the content of other pages doing a site search and displaying its output dynamically show or hide parts of the page depending on login status Of course, I am not expecting a solution that provides the same possibilities like a Ruby, Python or PHP web framework. Rather I am looking for support of the "basics" that are common for web sites. Until now, I have found only one piece of software that fulfills these requirements but while it's free, it's not open source: BoltWire at http://www.boltwire.com/. Being open source is required.

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  • How can I undo my last git add/commit ?

    - by dan
    I edited a file and did: git add file.py git commit -m 'fixed bug' I then edited another file and performed a minor bug fix. I don't want two commits, one after the other, showing 'bug fix'. I want one commit with 'bug fixes'. How can I undo the last add/commit and change the first commit message? I was looking at the git reset, git revert, git undo commands but I don't want to screw up my repo with a guess EDIT: Found out how to do it: http://www.gitready.com/advanced/2009/02/10/squashing-commits-with-rebase.html

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  • Why should I prepend my custom attributes with "data-"?

    - by Horace Loeb
    So any custom data attribute that I use should start with "data-": <li class="user" data-name="John Resig" data-city="Boston" data-lang="js" data-food="Bacon"> <b>John says:</b> <span>Hello, how are you?</span> </li> Will anything bad happen if I just ignore this? I.e.: <li class="user" name="John Resig" city="Boston" lang="js" food="Bacon"> <b>John says:</b> <span>Hello, how are you?</span> </li> I guess one bad thing is that my custom attributes could conflict with HTML attributes with special meanings (e.g., name), but aside from this, is there a problem with just writing "example_text" instead of "data-example_text"? (It won't validate, but who cares?)

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  • How to get XDebug working on Mac command line PHP

    - by Eugene M
    I recently installed Zend Server Community Edition on a Mac with Snow Leopard. I can't get XDebug to work ... it shows up in the output for phpinfo from a web browser, but when I var_dump() a variable, there is no special output, and when I run phpunit, code coverage reports aren't generated. Also when I type php -m at the command line, there is nothing for XDebug. I suspect that it's because the Mac is running the executable of PHP that was bundled with it instead of the executable of PHP that came with the Zend Server install. When I type /usr/local/zend/bin/php -m, XDebug does show up. I followed the instructions at http://akrabat.com/php/some-notes-on-zend-server-ce-for-mac-os-x/. Also I downloaded the xdebug.so from the Komodo web site. Zend Debugger and all other Zend extensions are disabled. So how can I get XDebug working correctly?

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  • Flex: Result event multiple times

    - by Tom
    Hello everybody!! I am trying to learn Flex and now i have the next code: http://pastebin.com/rZwxF7w1 This code is for my login component. I want to get a special string for encrypting my password. This string is given by my authservice. But when i login i get a multiple times a alert with Done(line 69 in the pastebin code or line 4 in the code on the bottom of this question). But i want that it shows one single time. Does someone know what is wrong with this code? Tom protected function tryLogin():void { encryptStringResult.addEventListener('result', function(event:ResultEvent):void { var encryptString:String = event.result.toString(); Alert.show('Done'); }); encryptStringResult.token = auth.getEncryptString(); }

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  • Stubbing ActiveRecord result arrays

    - by Matthias
    Using Ruby 1.8.6, stubbing a finder method to return an Array does not work when the code under test calls the 'count' method on the result: User.any_instance.stubs(:friends).returns([user1, user2]) That's because Array.count has only been added in Ruby 1.8.7. Rails also adds a count method dynamically, I believe through the ActiveRecord::Calculations module. Is there any way to turn this result array into something that behaves exactly as the special Array kind returned by a Rails finder method? When paginating results, it's easy: I can simply call [].paginate. But that doesn't work with normal finder results. I tried [].extend(ActiveRecord::Calculations) but that doesn't work either.

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  • How to inform users that webapplication does not support IE6

    - by Paul Szulc
    I have web application and I do not really care about IE6 users. However I would like to have some kind of feautre that would informe users that they are using IE6 and that their browser is not supported. I was thinking about two possible solutions: pop-out window (probably Javascript) with text informing the user on every page he enters some special page with information, that user would be redirected to whenever he tries to access my application Both solutions will be sufficient, however I would prefer the second one. Probably some magic javascript needs to be involved, can anyone could please provide a solution to this?

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  • Python lazy property decorator

    - by detly
    Recently I've gone through an existing code base and refactored a lot of instance attributes to be lazy, ie. not be initialised in the constructor but only upon first read. These attributes do not change over the lifetime of the instance, but they're a real bottleneck to calculate that first time and only really accessed for special cases. I find myself typing the following snippet of code over and over again for various attributes across various classes: class testA(object): def __init__(self): self._a = None self._b = None @property def a(self): if self._a is None: # Calculate the attribute now self._a = 7 return self._a @property def b(self): #etc Is there an existing decorator to do this already in Python that I'm simply unaware of? Or, is there a reasonably simple way to define a decorator that does this? I'm working under Python 2.5, but 2.6 answers might still be interesting if they are significantly different.

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  • F# pattern matching

    - by Roger Alsing
    What would be the most effective way to express the following code? match cond.EvalBool() with | true -> match body.Eval() with | :? ControlFlowModifier as e -> match e with | Break(scope) -> e :> obj //Break is a DU element of ControlFlowModifier | _ -> next() //other members of CFM should call next() | _ -> next() | false -> null cond.EvalBool returns a boolean result where false should return null and true should either run the entire block again (its wrapped in a func called next) or if the special value of break is found, then the loop should exit and return the break value. Is there any way to compress that block of code to something smaller?

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  • Server Development Tool?

    - by aloneguid
    Hi, For my programming tasks I use about 2-3 remote servers to deploy and run my code against different conditions. This cannot be emulated locally as the server configuration requires powerful hardware. Most of time I need to stop service, update binareis, start service, view logs in realtime, download logs. Currently I'm doing this manually and over time this becomes a real pain in the ass, especially because the environment is not ideal in terms of network badwidth, reliability etc. I just wonder if someone from server programmers have the similar problems and how do you bear with them. Any special tools/hints/secrets?

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  • Optimizing if-else /switch-case with string options

    - by cc
    What modification would bring to this piece of code? In the last lines, should I use more if-else structures, instead of "if-if-if" if (action.equals("opt1")) { //something } else { if (action.equals("opt2")) { //something } else { if ((action.equals("opt3")) || (action.equals("opt4"))) { //something } if (action.equals("opt5")) { //something } if (action.equals("opt6")) { //something } } } Later Edit: This is Java. I don't think that switch-case structure will work with Strings. Later Edit 2: A switch works with the byte, short, char, and int primitive data types. It also works with enumerated types (discussed in Classes and Inheritance) and a few special classes that "wrap" certain primitive types: Character, Byte, Short, and Integer (discussed in Simple Data Objects ).

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  • Using custom request and custom redirect with Contact Form 7

    - by Scott B
    I have several sites that I want to link back to the main site which hosts the contact form (using contact form 7). I would like to capture the request parameter "site-url" on incoming links to the contact form. Then when the user submits the form, I would like to redirect them back to the site specified in the site-url. Any ideas if this is possible with contact form 7? I would also like to add a special field in the contact form which would insert the site-url into the email that i get so that I know which site they were referred from.

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