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Articles indexed in April 2010

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  • Upload file from client machine to server - prepopulate file picker path?

    - by user246114
    Hi, I'd like to upload a file from a client machine to my server. The user would have to specify the file to upload as I understand it, using a form that looks like: <input type="file" name="datafile" size="40"> This pops up a native file picker, which is great. The problem I'm having is that it's a real pain (for most users) to go looking around their machine for the file I'm interested in. Is there a way I can initialize the file picker with a path to make it more convenient for the user? Like I know some users will be on a windows machine, so I could prepopulate the picker by already sending them to the My Documents folder for example. I don't see how this is possible, just wondering if something like that exists, Thank you

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  • Hidden Features and Dark Corners of STL?

    - by Andrei
    C++ developers, all know the basics of C++: Declarations, conditionals, loops, operators, etc. Some of us even mastered the stuff like templates, object model, complex I/O, etc. But what are the most hidden features or tricks or dark corners of C++/STL that even C++ fans, addicts, and experts barely know? I am talking about a seasoned C++ programmer (be she/he a developer, student, fan, all three, etc), who thinks (s)he knows something 99% of us never heard or dreamed about. Something that not only makes his/her work easier, but also cool and hackish. After all, C++ is one of the most used programming languages in the world, thus it should have intricacies that only a few privileged know about and want to share with us. Boost is welcome too! One per post with an example please P.S Examples are important for other developers to copy and paste!

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  • ASP.NET MVC Response Filter + OutputCache Attribute

    - by Shane Andrade
    I'm not sure if this is an ASP.NET MVC specific thing or ASP.NET in general but here's what's happening. I have an action filter that removes whitespace by the use of a response filter: public class StripWhitespaceAttribute : ActionFilterAttribute { public StripWhitespaceAttribute () { } public override void OnResultExecuted(ResultExecutedContext filterContext) { base.OnResultExecuted(filterContext); filterContext.HttpContext.Response.Filter = new WhitespaceFilter(filterContext.HttpContext.Response.Filter); } } When used in conjunction with the OutputCache attribute, my calls to Response.WriteSubstitution for "donut hole caching" do not work. The first and second time the page loads the callback passed to WriteSubstitution get called, after that they are not called anymore until the output cache expires. I've noticed this with not just this particular filter but any filter used on Response.Filter... am I missing something? I also forgot to mention I've tried this without the use of an MVC action filter attribute by attaching to the PostReleaseRequestState event in the global.asax and setting the Response.Filter value there... but still no luck.

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  • Oracle9i export error

    - by Max
    When I rut the following: set ORACLE_SID=orcl exp.exe 'SYS/system as sysdba' full=y log=exp.log file=mydump.dmp in the end i see the following: EXP-00056: ORACLE error 942 encountered ORA-00942: table or view does not exist EXP-00000: Export terminated unsuccessfully what should i do to resolve it? I had 9.2.0.1.0 oracle, after it was installed 2 patches: 9.2.0.7.0 and 9.2.0.8.0

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  • How to exclude one subfolder from my RewriteRule Htaccess rules?

    - by tomaszs
    I have a .htaccess in my root of website that looks like this: RewriteEngine On RewriteCond %{HTTP_HOST} !^www\.mydomain\.pl [NC] RewriteCond %{HTTP_HOST} ^(?:www\.)?([a-z0-9_-]+)\.mydomain\.pl [NC] RewriteRule ^/?$ /index.php?run=places/%1 [L,QSA] RewriteCond %{REQUEST_URI} !^/index.php$ RewriteCond %{REQUEST_URI} !^/images/ RewriteCond %{REQUEST_URI} !^/upload/ RewriteCond %{REQUEST_URI} !^/javascript/ RewriteRule ^(.*)$ /index.php?runit=$1 [L,QSA] I've installed custom guest book in folder guests and now I would like to disable rules above for this one specific folder. So that when I type: mydomain.pl/guests I would like to go normally to actual folder guests. I understand that I need to somehow disable rules above for guests subfolder, but how do I do this?

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  • How do I change the console resolution of Ubuntu 9.10 Server running on VMWare?

    - by Raam Dev
    I'm running Ubuntu 9.10 Server in VMWare Fusion (on a Mac) and I'm having trouble changing the console resolution. It seems to be stuck on 640x480. Ubuntu 9.10 uses Grub2, so there is no /etc/grub/menu.lst. I tried adding vga=791 to the kernel parameters (both during boot and by adding it to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub and then running update-grub2) and neither had any effect. When using vga=791, grub says that vga=791 is depreciated and that I should use gfxpayload=1024x768x16,1024x768 instead. However, that also does absolutely nothing. I have a feeling this problem is specific to running Ubuntu 9.10 in VMWare, but Google hasn't turned up anything.

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  • horizontal scrolling only!

    - by Crippletoe
    Hi all i have a that contains a HORIZONTAL menu. the menu consists of an unordered list. i would like the div to get a horizontal scroller whenever the menu exceeds the width of the <div>. i tried using these CSS definitions for my <div>: position: absolute; width: 380px; overflow: auto; overflow-y: hidden; height: 30px; but than realized that since the menu is LIST, the different list items break the line whenever they reach the width of the <div> and move on to the next line, thus the browser doesnt see the need for a horizontal scroller (it doesnt display a vertical one as well because of the overflow-y: hidden; line) any ideas how i can create a 1 line horizontal menu which will scroll horizontally only? thank you all so much.

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  • Help debugging Apache, Passenger and Rails problem

    - by Matt Dressel
    We have an environment running that uses Apache, Passenger and rails. The system is handling most request normally, yet certain requests do not make it to the rails application. For instance, a request to /books is successful, but /books/1 hits apache and passenger, but does not even make it to rails. We set the apache log level to debug and the passenger log level to 3 so that we could monitor all incoming requests. We could see each request coming through and even the /books/1 request is being handled by passenger. But it never gets to rails. Is there any way to determine where the request goes between Passenger and rails or where debugging information might live? Has anyone ever seen any problems with passenger spawning or queuing? We have spawning set to conservative. Also, we have had some permission/ownership problems in the past, so I am not ruling this out yet. Thanks in advance

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  • Using zc.buildout, how do I install a tarball from a website?

    - by Brad Wright
    I'm trying to get zc.buildout to install Gunicorn from source. Using the following configuration: [gunicorn] recipe = collective.recipe.distutils url = http://github.com/benoitc/gunicorn/tarball/master results in the following error: SystemError: ('Failed', '"/usr/bin/python" setup.py -q install --install- purelib="/mnt/hgfs/Projects/intranation/parts/site-packages" --install-platlib="/mnt/hgfs/Projects/intranation/parts/site-packages"') Providing a --install-dir or --prefix doesn't help. Is there a recipe for zc.buildout that downloads a tarball and installs it via easy_install or similar?

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  • Find related field in Dynamics AX

    - by DAXShekhar
    static void findRelatedFieldId(Args _args) {     SysDictTable    dictTable = new SysDictTable(tablenum(InventTrans));     int             i,j;     SysDictRelation dictRelation;     TableId         externId = tablenum(SalesLine);     IndexId         indexId;     ; // Search the explicit relations     for (i = 1; i <= dictTable.relationCnt(); ++i)     {         dictRelation = new SysDictRelation(dictTable.id());         dictRelation.loadNameRelation(dictTable.relation(i)); // If it is a 'relation' then you use externTable(), but for extended data types you use table() (see next block).         if (SysDictRelation::externId(dictRelation) == externId)         {             for (j =1; j <= dictRelation.lines(); j++)             {                 info(strfmt("%1", dictRelation.lineExternTableValue(j)));                 info(fieldid2name(dictRelation.externTable(),dictRelation.lineExternTableValue(j)));             }         }     }     info(strfmt("%1", dictRelation.loadFieldRelation(fieldnum(InventTrans, InventTransId)))); }

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  • How to abandon a hg merge?

    - by Grumdrig
    I'm new to collaborating with Mercurial. My situation: Another programmer changed rev 1 of a file to replace 4-space indents with 2-space indent. (I.e. changed every line.) Call that rev 2, pushed to the remote repo. I've committed substantive changes rev 1 with various code changes in my local workspace. Call that rev 3. I've hg pulled and hg merged without a clear idea of what was going on. The conflicts are myriad and not really substantive. So I really wish I'd changed my local repo to 2-space indents before merging; then the merge will be trivial (i'm supposing). But I can't seem to back up. I think I need to hg update -r 3 but it says abort: outstanding uncommitted merges. How can I undo the merge, changes spacing in my local repo, and remerge?

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  • Distributing cpu-bound compression jobs to multiple computers?

    - by barnaby
    The other day I needed to archive a lot of data on our network and I was frustrated I had no immediate way to harness the power of multiple machines to speed-up the process. I understand that creating a distributed job management system is a leap from a command-line archiving tool. I'm now wondering what the simplest solution to this type of distributed performance scenario could be. Would a custom tool always be a requirement or are there ways to use standard utilities and somehow distribute their load transparently at a higher level? Thanks for any suggestions.

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  • Django ORM: Ordering w/ aggregate functions — None special treatment

    - by deno
    Hi, I'm doing query like that: SomeObject.objects.annotate(something=Avg('something')).order_by(something).all() Now, I normally have an aggregate field in my model that I use with Django signals to keep in sync, however in this case perfomance isn't an issue so I thought I'd keep it simple and just use subqueries. This approach, however, presented an unexpected issue: It all works grate if aggregate function results are like this: [5.0, 4.0, 6.0 … (etc, just numbers)] However if you mix in some Nones than it's being ordered like this: [None, 5.0, 4.0 …] The issue is that None has higher value than any number, while it should have value at most of 0. I'm using PostgreSQL and haven't tested w/ other DBs. I haven't actually checked what query is generated etc. I worked it around by just sorting in memory: sorted(…, key=lambda _:_.avg_rating if _.avg_rating is not None else 0) So I'm just curious if you know a way to do it w/ just Django ORM. Perhaps .where? or something… Kind regards

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  • Is there a true all-in-one solution for PHP Development?

    - by Alex R
    I'm looking for a "SINGLE INSTALLER" solution for PHP Development. Is there anything out there which will give me a nice IDE, Web Server, Debugger, Database, etc, on a single install image (*.msi or *.exe)? This of course would be completely opposite of Eclipse PDT, which requires you to search and locate a bunch of additional components which never quite work together.

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  • How is counting sort a stable sort?

    - by eSKay
    Suppose my input is (a,b and c to distinguish between equal keys) 1 6a 8 3 6b 0 6c 4 My counting sort will save as (discarding the a,b and c info!!) 0(1) 1(1) 3(1) 4(1) 6(3) 8(1) which will give me the result 0 1 3 4 6 6 6 8 So, how is this stable sort? I am not sure how it is "maintaining the relative order of records with equal keys." Please explain.

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