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• django models : How to have variable number of foreign keys in a model ?

  - by Rohit

  For instance, Model Resume contains variable number of Model Project 's, What should be my models and relationships between them to achieve this ? Thanks in advance.

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• How to get the current exception without having passing the variable?

  - by Pierre-Alain Vigeant

  I am looking for a way to retrieve the current exception without having to pass it as a variable. Suppose the following code public void MakeItFail() { try { throw new FailException(); } catch // Yes I'm aware that this shouldn't be done, but I don't want to go through all the code base and change it { ShowMessage("An error occured"); } } public void ShowMessage(string message) { // How can I retrieve the exception here } In the watch window, I can use $exception to get the current exception. Is there is a code equivalent?

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• Integer variable is acquiring a string value of "ad" somewhere along the line, can anyone see where?

  - by Phil

  Here is my code: I should get output of the department id (did) as an integer and the templatefilename (result) that is required. The errors I get are: Conversion from string "ad" to type 'Integer' is not valid. I'm fairly new to asp.net and cannot see where the did variable picks up the "ad" string. Any help would be greatly appreciated. Thanks

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• Closest Ruby representation of a 'public static final' class variable in Java?

  - by Hosh

  Given the Java code below, what's the closest you could represent this private static final variable in a Ruby class? public class DeviceController { ... private static final Device myDevice = Device.getDevice("mydevice"); ... public static void main(String args[]) { ... } }

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• How to store all in a variable instead of echoing everything separately?

  - by FLX

  Hi, please see: http://pastebin.com/5za3uCi1 I'm quite new to php and I'm editing the ventrilo status script. What I'd like it to do is that it stores everything in one big variable for easy parsing instead of using separate echo's. Can someone tell me how I can accomplish this? Thanks, Dennis

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• How does one NOT html_encode a variable in rails?

  - by deadkarma

  With Rails, If I have a variable with HTML content, how do I output it, unencoded in my view file? This code, for example: <% my_variable = "<b>Some Bolded Text</b>" %> <%= my_variable %> Outputs: &lt;b&gt;Some Bolded Text&lt;/b&gt;

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• How do I call a function using a function name generated from a string variable.

  - by Roeland

  In the process of automating some code, I am looking to call upon a function based on what a string is. For example, I have a variable $somevar which is set to the string "This". Now I want to run a function doThis(); So, I was hoping I could write do.$somevar($var,$var2) . I want it to run doThis($var1,$var2). Is this possible?

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• Is there a way define a global variable which is accesible from a class method?

  - by Starx

  Here is the situation I create a instance of a class $newobj = new classname1; Then I have another class writtern below and I want to this class to access the object above class newclass { public function test() { echo $newobj->display(); } } It is not allowed, is there a way define a variable globally through a class?

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• How can fill a variable of my own created data type within Oracle PL/SQL?

  - by Frankie Simon

  In Oracle I've created a data type: TABLE of VARCHAR2(200) I want to have a variable of this type within a Stored Procedure (defined locally, not as an actual table in the DB) and fill it with data. Some online samples show how I'd use my type if it was filled and passed as a parameter to the stored procedure: SELECT column_value currVal FROM table(pMyPassedParameter) However what I want is to fill it during the PL/SQL code itself, with INSERT statements. Anyone knows the syntax of this?

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• How do I pass a Python Variable to Bash?

  - by user336537

  Hello, How would I pass a Python variable to the Bash shell? It should work like this: foo="./RetVar.py 42" Replace the double-quotes with `s I have tried printing and sys.exiting the result, but to no avail. How would I accomplish my goal?

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• How to acces a global variable in a callback object in javascript YUI without use window.myvariable

  - by quilovnic

  I have this : var MyObject = function(){ this.url = "monurl"; this.mavar = ""; this.Load = function(){ var callback = { success: function(o){ mavar = o.responseXML.getElementsByTagName("montag")[0].firstChild.nodeValue; } } YAHOO.util.Connect.asyncRequest('GET',url,callback); } } the mavar variable is not accessible. How can I do this ?

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• Reusing a NSString variable - does it cause a memory leak?

  - by Chris S

  Coming from a .NET background I'm use to reusing string variables for storage, so is the code below likely to cause a memory leak? The code is targeting OS X on the iphone/itouch so no automatic GC. -(NSString*) stringExample { NSString *result = @"example"; result = [result stringByAppendingString:@" test"]; // where does "example" go? return result; } What confuses me is an NSStrings are immutable, but you can reuse an 'immutable' variable with no problem.

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• How to create dynamic incrementing variable using "for" loop in php?

  - by Parth

  How to create dynamic incrementing variable using "for" loop in php? like wise: $track_1,$track_2,$track_3,$track_4..... so on....

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• How to remove a text from a variable? (php)

  - by Glister

  I have a variable $link_item, it's used with echo and gives the strings like <span class="name">Google</span>http://google.com How to remove "<span class="name">Google</span>" from string? It should give just "http://google.com". Heard it can be done with regex(), please help.

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• Is there a "fancy" Ruby way to check whether a local variable is both defined and evaluates to true without using ands and ors?

  - by Steven Xu

  This is quite a quick question. I currently use do_this if (testvar ||= false) Which works just fine. But this approach unnerves me because while fast, it does not short-circuit like defined?(testvar) && testvar does, and it instantiates and assigns a value to a local variable that is subsequently never used, which seems inefficient. I enjoy the very reasonable fact that instance variables are nil before assignment, but I'd like for the situation to be just as easy for local variables.

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• How do I increment a variable so it chooses differnet lines from a text files in a While Loop.

  - by Kirk

  I have a script im writing. Here is whats happening. There is a while loop. In the while loop is a variable which is constant to X. How do i make X change from line one, line two, etc for each cycle of the while loop and pull X from a .txt file. Everything is in root. Thanks

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• How to find the physical address of a variable from user-space in Linux?

  - by Sandip

  I want to find the physical address of a variable defined in a user-space process? Is there any way to do it using root privileges?

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• Why do Windows environment variable names use a special escape character?

  - by bde

  I am curious if there is any history behind why the ^ character is used to escape the special characters <, , |, &, and ^ in environment variable names in Windows instead the '\' character that is typically used to escape special characters. Please note that I realize there may be no reason for this, but I'd be interested to hear if there is a reason.

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• How do I pass an asp variable to a selectcommand?

  - by Anthony

  I am trying to pass a variable "PIN2" that I am retrieving like below to a SelectCommand statement in a asp SqlDataSource tag <% Dim PIN As String = Request.ServerVariables("LOGON_USER") Dim PIN2 As String = Right(PIN, 6) %> Thanks

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• A more elegant way to parse a string with ruby regular expression using variable grouping?

  - by i0n

  At the moment I have a regular expression that looks like this: ^(cat|dog|bird){1}(cat|dog|bird)?(cat|dog|bird)?$ It matches at least 1, and at most 3 instances of a long list of words and makes the matching words for each group available via the corresponding variable. Is there a way to revise this so that I can return the result for each word in the string without specifying the number of groups beforehand? ^(cat|dog|bird)+$ works but only returns the last match separately , because there is only one group.

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• Most inappropriate function or variable names you have encountered?

  - by Andrioid

  I was reading through my daily doze of RSS when I noticed a link to the python compiler documentation where class names like assList, assName and assTuple exist. While starting names with 'ass' is perfectly acceptable to me, it just sparked this idea that there probably exist much better examples of this. Have you personally used or otherwise encountered any inappropriate function or variable names? Personally I have used 'crap' and 'moo' for temporary purposes, forgot them and at a later point they came too integrated for me to bother with fixing them.

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• How to get a name of a variable coming into a function as a parameter using F#?

  - by Oldrich Svec

  Is there any way in F# how to get a name of a variable passed into a function? Example: let velocity = 5 let fn v = v.ParentName let name = fn velocity // this would return "velocity" as a string Thank you in advance

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• Haw can i use a value from a session variable within the attribute of a control?

  - by William Calleja

  I have an ASP control custom built and I need to pass a value taken from a session variable to it like so: <custom:control id='mycontrol' value="+Session['myControlValue']+"> ... </custom:control> the above code obviously doesn't work, I need a way to insert the Session value in the control in this way somehow, can anyone help?

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• How do I access a variable defined in URL when using Zend Framework?

  - by ben

  I had a read of the documentation, but couldn't see an example of how it would be possible to use the variable in traditional PHP style of $_POST['var'] I'm pretty sure my URL is legit: domain.com/module/controller/action/var/value/ Using the above as an example: $var didn't work $_POST['var'] didn't work How is it done?

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• How can I access class variable inside a NSMutableArray object?

  - by ahmet732

  I have "Man" class which also has 2 variable : "description" and "name". At a point, I created Man class and initialize with its own variables (description and name) and pass it to NSMutableArray "collector". How can I access description now ? I tried but i could not get the property

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