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  • JQuery getJSON Callback Returning Null Data

    - by user338828
    I have a getJSON call that is called back correctly, but the data variable is null. The python code posted below is executed by the getJSON call to the demandURL. Any ideas? javascript: var demandURL = "/demand/washington/"; $.getJSON(demandURL, function(data) { console.log(data); }); python: data = {"demand_count":"one"} json = simplejson.dumps(data) return HttpResponse(json, mimetype="application/json")

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  • Noob Objective-C/C++ - Linker Problem/Function Def Problem

    - by Josh
    There is a static class Pipe, defined in C++ header that I'm including. The function I'm interested in calling (from Objetive-c) is here: static ERC SendUserGet(const UserId &_idUser,const GUID &_idStyle,const ZoneId &_idZone,const char *_pszMsg); I have access to an objetive-c data structure that appears to store a copy of userID, and zoneID -- it looks like: @interface DataBlock : NSObject { GUID userID; GUID zoneID; } Looked up the GUID def, and its a struct with a bunch of overloaded operators for equality. UserId and ZoneId from the first function signature are #typedef GUID Now when I try to call the function, no matter how I cast it (const UserId), (UserId), etc, I get the following linker error: "Pipe::SendUserGet(_GUID const&, _GUID const&, _GUID const&, char const*)", referenced from: -[PeoplePaneController clickGet:] in PeoplePaneController.o Is this a type/function signature error, or truly some sort of linker error? I have the headers where all these types and static classes are defined #imported -- I tried #include too, just in case, since I'm already stumbling :P Forgive me, I come from a web tech background, so this c-style memory management and immutability stuff is super hazy. Thanks, Josh

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  • CAD like 3D geometry .NET library

    - by Naszta
    I am looking for a good 3D CAD like library. I need basic geometry shapes (cube, sphere, torus etc.) and the library should make the surface mesh - based on the shapes and some boolean operations. I have found many libraries on google (wrapped on C++), but most of them are not really comfortable, and/or do not support union/intersection. http://www.geometros.com/sgcore/index.htm - it has wrapped interface, http://www.opencsg.org/ - I haven't found wrapped interface, http://carve-csg.com/ - I haven't found wrapped interface, http://gts.sourceforge.net/ - I haven't found wrapped interface, http://www.ogre3d.org/ - I haven't found basic geometric shapes and boolean operators, http://brlcad.org/ - its interface is not clear for me, I haven't found wrapped interface, http://www.cgal.org/ - currently I try to make it work, I haven't found wrapped interface, http://www.k-3d.org/ - I haven't found wrapped interface, http://www.opencascade.org/ - I haven't found wrapped interface, http://ilnumerics.net/ - it does not support solid boolean operations, http://www.techsoft3d.com/ - seems to be really good one. Support both C++ and C#, http://www.devdept.com/products/eyeshot/ - one more C# library. It was not tested. Open source would be nice, but not necessary. Many thanks for help. P.S.: the previous topic Update: in C# we will use Eyeshot project.

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  • Specify the search path for DllImport in .NET

    - by Stefan
    Is there a way to specify the paths to be searched for a given assembly that is imported with DllImport? [DllImport("MyDll.dll")] static extern void Func(); This will search for the dll in the app dir and in the PATH environment variable. But at times the dll will be placed elsewhere. Can this information be specified in app.config or manifest file to avoid dynamic loading and dynamic invocation?

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  • Jquery history, inspect the history stack

    - by nickmorss
    Im using this history jquery plugin http://www.mikage.to/jquery/jquery_history.html and im trying to inspect the back stack. I can call this $.historyCurrentHash to return the current hash, but im trying to figure out how to look one step back in the stack. if i try calling this $.historyBackStack, but i just get an 'undefined'. anyone got any ideas? I can see that its not a public variable, but im wondering if i need to modify the library or just call it in a different way

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  • Silverlight - Bing Maps - Customize Pushpin Style

    - by user70192
    Hello, How do I customize the style of a pushpin on the Bing Maps Silverlight control? I have reviewed the documentation shown here (http://www.microsoft.com/maps/isdk/silverlightbeta/#MapControlInteractiveSdk.Tutorials.TutorialCustomPushpin). However, I am programmatically adding a variable number of Pushpins. Ideally, I would like to be able to set the style of each pushin, but I do not know how. Can someone show me how? Thank you!

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  • Win32 Event vs Semaphore

    - by JP
    Basically I need a replacement for Condition Variable and SleepConditionVariableCS because it only support Vista and UP. (For C++) Some suggested to use Semaphore, I also found CreateEvent. Basically, I need to have on thread waiting on WaitForSingleObject, until something one or more others thread tell me there is something to do. In which context should I use a Semaphore vs an Win Event? Thanks

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  • Xcode Disable Colon-aligning Auto-indent

    - by Andy Shea
    Is there any way to disable the auto-indent Xcode performs to align colons when breaking up a long method name into multiple lines? That is, I'd rather not have this: UIBarButtonItem *longDescriptiveButton = [[UIBarButtonItem alloc] initWithTitle:@"Title of Button" style:UIBarButtonItemStyleBordered target:self action:@selector(longDescriptiveButtonClicked)]; which, as you can see, looks terrible when variable/method/class names are long.

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  • Prevent * to be expanded in the bash script

    - by Alex Farber
    Linux bash script: #!/bin/bash function Print() { echo $1 } var="*" Print $var Execution results: alex@alex-linux:~/tmp$ ./sample-script sample-script "*" is expanded to the list of files, which is actually script itself. How can I prevent this and see actual variable value? In general case, var can be more complicated than "*", for example: "home/alex/mydir/*".

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  • sort mysql query by filtered query

    - by kalpaitch
    I have two mysql queries: $sql = "SELECT * FROM content WHERE threadName LIKE '%$filter%' ORDER BY lastUpdated desc"; and $sql = "SELECT * FROM content ORDER BY lastUpdated desc"; The end result is to have all rows returned from a particular table 'content' but have those that match the variable $filter at the top. Is there either a single query that could combine these two or should I be using a JOIN?

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  • Dijkstra’s algorithm and functions

    - by baris_a
    Hi guys, the question is: suppose I have an input function like sin(2-cos(3*A/B)^2.5)+0.756*(C*D+3-B) specified with a BNF, I will parse input using recursive descent algorithm, and then how can I use or change Dijkstra’s algorithm to handle this given function? After parsing this input function, I need to execute it with variable inputs, where Dijkstra’s algorithm should do the work. Thanks in advance. EDIT: May be I should ask also: What is the best practice or data structure to represent given function?

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  • I dont understand Access modifiers in OOP (JAVA)

    - by Imran
    I know this is a silly question but i don't understand Access Modifiers in OOP. Why do we make for example in JAVA instance variables private and then use public getter and setter methods to access them? I mean whats the reasoning/logic behind this? You still get to the instance variable but why use setter and getter methods when you can just make your variables public? please excuse my ignorance as i'm simply trying to understand why we do this? Thank you in advance;-)

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  • Arguments, local variables, and global variables in Python

    - by prosseek
    In python, there is no way to differentiate between arguments, local variables, and global variables. The easy way to do so might be have some coding convention such as Global variables start with _ and capital letter arguments end with with _ _Global variable = 10 def hello(x_, y_): z = x_ + y_ Is this a Pythonian way to go? I mean, is there well established/agreed coding-standards to differentiate them in python?

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  • Does functional programming mandate new naming conventions?

    - by Jakob
    I recently started studying functional programming using Haskell and came upon this article on the official Haskell wiki: How to read Haskell. The article claims that short variable names such as x, xs, and f are fitting for Haskell code, because of conciseness and abstraction. In essence, it claims that functional programming is such a distinct paradigm that the naming conventions from other paradigms don't apply. What are your thoughts on this?

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  • NSData's writeToFile method failing with server address

    - by Ricky
    Hi. I am trying to write an NSData object to a directory like so; [myData writeToFile:[NSString stringWithFormat:@"%@/%@.txt", path, filename] atomically:YES]; I receive no errors or warnings but I am assuming the write fails because the path variable has the format of afp://10.0.0.20/username/Desktop. I am connected to the networked share. Do I need to modify the string or take a different approach here? TIA, Ricky.

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  • Alternative for my preg_replace code

    - by Ben Sinclair
    Here is my code... basically it finds any page-NUMBER- within a variable and then replaces it with a page url from an array $content_text = preg_replace("/page-(\d+)-/sie", '$pageurl[$1]', $content_text); It works a treat until the NUMBER it finds isn't in the array and it returns an error... Is there another efficient way I could do this instead? I liked my code above because it was simple but I may have to use more complex code...

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  • bitwise XOR a string in Bash

    - by ricky2002
    Hi. I am trying to accomplish a work in Bash scripting. I have a string which i want to XOR with my key. #!/bin/sh PATH=/bin:/usr/bin:/sbin:/usr/sbin export PATH teststring="abcdefghijklmnopqr" Now how do i XOR the value of teststring and store it in a variable using bash? Any help will be appreciated.

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  • Adding hooks to TortoiseHg

    - by hekevintran
    I am using TortoiseHg and would like to apply a hook to my repo. My repo's .hg/hgrc file is as follows: [hooks] pretxncommit = python:hg_checksize.newbinsize The thing is that I don't know where TortoiseHg's PYTHONPATH variable is set. How do I change it? Or where do I put my Python file so that it is visible by TortoiseHg's Python interpreter? I cannot find any mention of hooks in TortoiseHg's documentation or through Google?

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  • Visual Web Developer, custom WHERE-clause for DataList, DataGrid

    - by m3n
    This question is not really related to programming but to using Visual Web Developer, but here goes: I'd like to use User.Identity.Name or any session variable in the WHERE-clause used by DataList (or other similar components), but I've tried the different options in the "ORDER BY..." pane to no avail. How do I stick that in there? Cheers

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  • JsLint 'out of scope' error

    - by Rajat
    function test(){ if(true){ var a = 5; } alert(a); } test(); I keep getting 'out of scope' errors in my JS code when I check with JsLint which make no sense to me.So I quickly created an example. Is there something actually wrong with this code piece, as the variable is eventually hoisted to the top of the function anyways.

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  • Converting Lighttpd config to NginX with php-fpm

    - by Le Dude
    Having so much issue with NginX configuration since I'm new with NginX. Been using Lighttpd for quite sometime. Here are the base info. New Machine - CentOS 6.3 64 Bit - NginX 1.2.4-1.e16.ngx - Php-FPM 5.3.18-1.e16.remi Old Machine - CentOS 6.2 64Bit - Lighttpd 1.4.25-3.e16 Original Lighttpd config file: ####################################################################### ## ## /etc/lighttpd/lighttpd.conf ## ## check /etc/lighttpd/conf.d/*.conf for the configuration of modules. ## ####################################################################### ####################################################################### ## ## Some Variable definition which will make chrooting easier. ## ## if you add a variable here. Add the corresponding variable in the ## chroot example aswell. ## var.log_root = "/var/log/lighttpd" var.server_root = "/var/www" var.state_dir = "/var/run" var.home_dir = "/var/lib/lighttpd" var.conf_dir = "/etc/lighttpd" ## ## run the server chrooted. ## ## This requires root permissions during startup. ## ## If you run Chrooted set the the variables to directories relative to ## the chroot dir. ## ## example chroot configuration: ## #var.log_root = "/logs" #var.server_root = "/" #var.state_dir = "/run" #var.home_dir = "/lib/lighttpd" #var.vhosts_dir = "/vhosts" #var.conf_dir = "/etc" # #server.chroot = "/srv/www" ## ## Some additional variables to make the configuration easier ## ## ## Base directory for all virtual hosts ## ## used in: ## conf.d/evhost.conf ## conf.d/simple_vhost.conf ## vhosts.d/vhosts.template ## var.vhosts_dir = server_root + "/vhosts" ## ## Cache for mod_compress ## ## used in: ## conf.d/compress.conf ## var.cache_dir = "/var/cache/lighttpd" ## ## Base directory for sockets. ## ## used in: ## conf.d/fastcgi.conf ## conf.d/scgi.conf ## var.socket_dir = home_dir + "/sockets" ## ####################################################################### ####################################################################### ## ## Load the modules. include "modules.conf" ## ####################################################################### ####################################################################### ## ## Basic Configuration ## --------------------- ## server.port = 80 ## ## Use IPv6? ## #server.use-ipv6 = "enable" ## ## bind to a specific IP ## #server.bind = "localhost" ## ## Run as a different username/groupname. ## This requires root permissions during startup. ## server.username = "lighttpd" server.groupname = "lighttpd" ## ## enable core files. ## #server.core-files = "disable" ## ## Document root ## server.document-root = server_root + "/lighttpd" ## ## The value for the "Server:" response field. ## ## It would be nice to keep it at "lighttpd". ## #server.tag = "lighttpd" ## ## store a pid file ## server.pid-file = state_dir + "/lighttpd.pid" ## ####################################################################### ####################################################################### ## ## Logging Options ## ------------------ ## ## all logging options can be overwritten per vhost. ## ## Path to the error log file ## server.errorlog = log_root + "/error.log" ## ## If you want to log to syslog you have to unset the ## server.errorlog setting and uncomment the next line. ## #server.errorlog-use-syslog = "enable" ## ## Access log config ## include "conf.d/access_log.conf" ## ## The debug options are moved into their own file. ## see conf.d/debug.conf for various options for request debugging. ## include "conf.d/debug.conf" ## ####################################################################### ####################################################################### ## ## Tuning/Performance ## -------------------- ## ## corresponding documentation: ## http://www.lighttpd.net/documentation/performance.html ## ## set the event-handler (read the performance section in the manual) ## ## possible options on linux are: ## ## select ## poll ## linux-sysepoll ## ## linux-sysepoll is recommended on kernel 2.6. ## server.event-handler = "linux-sysepoll" ## ## The basic network interface for all platforms at the syscalls read() ## and write(). Every modern OS provides its own syscall to help network ## servers transfer files as fast as possible ## ## linux-sendfile - is recommended for small files. ## writev - is recommended for sending many large files ## server.network-backend = "linux-sendfile" ## ## As lighttpd is a single-threaded server, its main resource limit is ## the number of file descriptors, which is set to 1024 by default (on ## most systems). ## ## If you are running a high-traffic site you might want to increase this ## limit by setting server.max-fds. ## ## Changing this setting requires root permissions on startup. see ## server.username/server.groupname. ## ## By default lighttpd would not change the operation system default. ## But setting it to 2048 is a better default for busy servers. ## ## With SELinux enabled, this is denied by default and needs to be allowed ## by running the following once : setsebool -P httpd_setrlimit on server.max-fds = 2048 ## ## Stat() call caching. ## ## lighttpd can utilize FAM/Gamin to cache stat call. ## ## possible values are: ## disable, simple or fam. ## server.stat-cache-engine = "simple" ## ## Fine tuning for the request handling ## ## max-connections == max-fds/2 (maybe /3) ## means the other file handles are used for fastcgi/files ## server.max-connections = 1024 ## ## How many seconds to keep a keep-alive connection open, ## until we consider it idle. ## ## Default: 5 ## #server.max-keep-alive-idle = 5 ## ## How many keep-alive requests until closing the connection. ## ## Default: 16 ## #server.max-keep-alive-requests = 18 ## ## Maximum size of a request in kilobytes. ## By default it is unlimited (0). ## ## Uploads to your server cant be larger than this value. ## #server.max-request-size = 0 ## ## Time to read from a socket before we consider it idle. ## ## Default: 60 ## #server.max-read-idle = 60 ## ## Time to write to a socket before we consider it idle. ## ## Default: 360 ## #server.max-write-idle = 360 ## ## Traffic Shaping ## ----------------- ## ## see /usr/share/doc/lighttpd/traffic-shaping.txt ## ## Values are in kilobyte per second. ## ## Keep in mind that a limit below 32kB/s might actually limit the ## traffic to 32kB/s. This is caused by the size of the TCP send ## buffer. ## ## per server: ## #server.kbytes-per-second = 128 ## ## per connection: ## #connection.kbytes-per-second = 32 ## ####################################################################### ####################################################################### ## ## Filename/File handling ## ------------------------ ## ## files to check for if .../ is requested ## index-file.names = ( "index.php", "index.rb", "index.html", ## "index.htm", "default.htm" ) ## index-file.names += ( "index.xhtml", "index.html", "index.htm", "default.htm", "index.php" ) ## ## deny access the file-extensions ## ## ~ is for backupfiles from vi, emacs, joe, ... ## .inc is often used for code includes which should in general not be part ## of the document-root url.access-deny = ( "~", ".inc" ) ## ## disable range requests for pdf files ## workaround for a bug in the Acrobat Reader plugin. ## $HTTP["url"] =~ "\.pdf$" { server.range-requests = "disable" } ## ## url handling modules (rewrite, redirect) ## #url.rewrite = ( "^/$" => "/server-status" ) #url.redirect = ( "^/wishlist/(.+)" => "http://www.example.com/$1" ) ## ## both rewrite/redirect support back reference to regex conditional using %n ## #$HTTP["host"] =~ "^www\.(.*)" { # url.redirect = ( "^/(.*)" => "http://%1/$1" ) #} ## ## which extensions should not be handle via static-file transfer ## ## .php, .pl, .fcgi are most often handled by mod_fastcgi or mod_cgi ## static-file.exclude-extensions = ( ".php", ".pl", ".fcgi", ".scgi" ) ## ## error-handler for status 404 ## #server.error-handler-404 = "/error-handler.html" #server.error-handler-404 = "/error-handler.php" ## ## Format: <errorfile-prefix><status-code>.html ## -> ..../status-404.html for 'File not found' ## #server.errorfile-prefix = "/srv/www/htdocs/errors/status-" ## ## mimetype mapping ## include "conf.d/mime.conf" ## ## directory listing configuration ## include "conf.d/dirlisting.conf" ## ## Should lighttpd follow symlinks? ## server.follow-symlink = "enable" ## ## force all filenames to be lowercase? ## #server.force-lowercase-filenames = "disable" ## ## defaults to /var/tmp as we assume it is a local harddisk ## server.upload-dirs = ( "/var/tmp" ) ## ####################################################################### ####################################################################### ## ## SSL Support ## ------------- ## ## To enable SSL for the whole server you have to provide a valid ## certificate and have to enable the SSL engine.:: ## ## ssl.engine = "enable" ## ssl.pemfile = "/path/to/server.pem" ## ## The HTTPS protocol does not allow you to use name-based virtual ## hosting with SSL. If you want to run multiple SSL servers with ## one lighttpd instance you must use IP-based virtual hosting: :: ## ## $SERVER["socket"] == "10.0.0.1:443" { ## ssl.engine = "enable" ## ssl.pemfile = "/etc/ssl/private/www.example.com.pem" ## server.name = "www.example.com" ## ## server.document-root = "/srv/www/vhosts/example.com/www/" ## } ## ## If you have a .crt and a .key file, cat them together into a ## single PEM file: ## $ cat /etc/ssl/private/lighttpd.key /etc/ssl/certs/lighttpd.crt \ ## > /etc/ssl/private/lighttpd.pem ## #ssl.pemfile = "/etc/ssl/private/lighttpd.pem" ## ## optionally pass the CA certificate here. ## ## #ssl.ca-file = "" ## ####################################################################### ####################################################################### ## ## custom includes like vhosts. ## #include "conf.d/config.conf" #include_shell "cat /etc/lighttpd/vhosts.d/*.conf" ## ####################################################################### ####################################################################### ### Custom Added by me #url.rewrite-once = (".*\.(js|ico|gif|jpg|png|css|jar|class)$" => "$0", "" => "/index.php") url.rewrite-once = ( ".*\?(.*)$" => "/index.php?$1", "^/js/.*$" => "$0", "^.*\.(js|ico|gif|jpg|png|css|swf |jar|class)$" => "$0", "" => "/index.php" ) # expire.url = ( "" => "access 1 days" ) include "myvhost-vhosts.conf" ####################################################################### Here is my Vhost file for lighttpd $HTTP["host"] =~ "192.168.8.35$" { server.document-root = "/var/www/lighttpd/qc41022012/public" server.errorlog = "/var/log/lighttpd/error.log" accesslog.filename = "/var/log/lighttpd/access.log" server.error-handler-404 = "/e404.php" } and here is my nginx.conf file user nginx; worker_processes 5; error_log /var/log/nginx/error.log warn; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include /etc/nginx/mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; access_log /var/log/nginx/testsite/logs/access.log main; sendfile on; #tcp_nopush on; keepalive_timeout 65; #gzip on; # include /etc/nginx/conf.d/*.conf; ## I added this ## include /etc/nginx/sites-available/*; } Here is my NginX Vhost file server { server_name 192.168.8.91; access_log /var/log/nginx/myapps/logs/access.log; error_log /var/log/nginx/myapps/logs/error.log; root /var/www/html/myapps/public; location / { index index.html index.htm index.php; } location = /favicon.ico { return 204; access_log off; log_not_found off; } # location ~ \.php$ { # try_files $uri /index.php; # include /etc/nginx/fastcgi_params; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; # fastcgi_param SCRIPT_NAME $fastcgi_script_name; location ~ \.php.*$ { rewrite ^(.*.php)/ $1 last; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; # fastcgi_intercept_errors on; # fastcgi_param SCRIPT_FILENAME $document_root/index.php; # fastcgi_param PATH_INFO $uri; # fastcgi_pass 127.0.0.1:9000; # include fastcgi_params; } } We have a custom apps that we created that works great with lighttpd. I went through some headache also when we were trying to figure out how to make it work with lighttpd. this is the line that helps make it work in lighttpd. url.rewrite-once = ( ".*\?(.*)$" => "/index.php?$1", "^/js/.*$" => "$0", "^.*\.(js|ico|gif|jpg|png|css|swf |jar|class)$" => "$0", "" => "/index.php" ) but I couldn't figure out how to make it works in NginX. The webserver run just fine when we use the phpinfo.php test file. However as soon as I point it to my apps, nothing comes up. Check the error.log file and there's no error. Very mind boggling. I spent over 1 week trying to figure it out with no luck.. Please help?

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