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  • Simplest method of hiding sensitive information

    - by drozzy
    What is the simplest way I can hide a sensitive identifier, while providing some equivalent means of identifying the data from outside? For example, lets say I have a database table with records and one of them is an sensitive ID field. ID 2A 1S etc... then I want to have a second record: ID PublicID 2A AXXX44328 1S KKKZJSAAS such that when I am given a PublicID I can always determine what ID it refers to: H(PublicID) = ID but nobody else is able to do so. I suspect this is like, encryption - with throwing away a public key?

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  • Rails 3 Create method using nested resources?

    - by user1461119
    How can I clean this up using rails 3 features? I have a post that belongs to a group and also a user. The group and user has_many posts. I am using a nested resource resources :groups do resources :posts end <%= form_for @post, :url => group_posts_path(params[:group_id]) do |f| %> .... <% end %> def create @group = Group.find(1) @post = @group.posts.build(params[:post]) @post.user_id = current_user.id respond_to do |format| if @post.save ..... end end end Thank you.

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  • Java Swing UI Changing Method

    - by vigilant
    I would like to use Swing to program a simple learning game. I am wondering what would be best way to switch between UI screens. For example, I would have a screen for the Main Menu, and then when the user presses a button on that screen, I would swap out the whole screen for a completely different one. Then, arbitrary screens can be swapped in at any moment, and all of their event handlers would be reactivated while the inactive screen's event handlers will be deactivated. What type of Swing component/control would I use for each of the 'screens'. Is this even doable?

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  • Simple C++ container class that is thread-safe for writing

    - by conradlee
    I am writing a multi-threaded program using OpenMP in C++. At one point my program forks into many threads, each of which need to add "jobs" to some container that keeps track of all added jobs. Each job can just be a pointer to some object. Basically, I just need the add pointers to some container from several threads at the same time. Is there a simple solution that performs well? After some googling, I found that STL containers are not thread-safe. Some stackoverflow threads address this question, but none that forms a consensus on a simple solution.

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  • T4MVC and Ajax method with parameter

    - by Tom
    I am trying to apply T4MVC to my project. Say, I have an ajax search box, it calls Home/SearchQuery action which takes in a string q as parameter. How do I write that line in T4MVC? From Ajax.BeginForm("SearchQuery", "Home", .... To Ajax.BeginForm(MVC.Home.SearchQuery(???)... .cshtml file @using (Ajax.BeginForm("SearchQuery", "Home", /* <-----Convert to T4MVC Here */ new AjaxOptions { LoadingElementId = "loadingGif", OnSuccess = "parseResults", OnFailure = "searchFailed" })) { <input type="text" name="q" /> <input type="submit" value="Search" /> <img id="loadingGif" style="display:none" src="@Url.Content("~/content/images/loading.gif")" /> } <div id="searchResults" style="display: table"></div>

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  • Using Variables for Class Names in Python?

    - by Sam McAfee
    I want to know how to use variables for objects and function names in Python. In PHP, you can do this: $className = "MyClass"; $newObject = new $className(); How do you do this sort of thing in Python? Or, am I totally not appreciating some fundamental difference with Python, and if so, what is it?

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  • best method for background uploader in Android

    - by Dr.Dredel
    Problem: I want to write a process that will allow a user to take photos with the device and for those photos to then be uploaded to some listener in the cloud. The user should not have to do anything to initiate the upload, a background listener would just watch the folder and as long as it finds files in it it would upload them and delete them. Two problems: 1) how to keep the program running in the background even after the user is no longer taking pictures (and if they reboot the device for it to wake up and finish the uploads, if any remain) 2) assuming the connection is spotty (as it always is) how to verify that a given image has completed its upload, and if not, to resubmit it. I don't need any code examples, I just would like opinions on the best strategy to get this implemented. I was going to use Apache commons and just do an upload to a PHP, but am not sure what sort of error checking exists to take into account a connection drop mid file. TIA.

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  • How to ignore a test within the JUnit test method itself

    - by Benju
    We have a number of integration tests that fail when our staging server goes down for weekly maintenance. When the staging server is down we send a specific response that I could detect in my integration tests. When I get this response instead of failing the tests I'm wondering if it is possible to skip/ignore that test even though it has started running. This would keep our test reports a bit cleaner. Does anybody have suggestions?

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  • Copy method optimization in compilers

    - by Dženan
    Hi All! I have the following code: void Stack::operator =(Stack &rhs) { //do the actual copying } Stack::Stack(Stack &rhs) //copy-constructor { top=NULL; //initialize this as an empty stack (which it is) *this=rhs; //invoke assignment operator } Stack& Stack::CopyStack() { return *this; //this statement will invoke copy contructor } It is being used like this: unsigned Stack::count() { unsigned c=0; Stack copy=CopyStack(); while (!copy.empty()) { copy.pop(); c++; } return c; } Removing reference symbol from declaration of CopyStack (returning a copy instead of reference) makes no difference in visual studio 2008 (with respect to number of times copying is invoked). I guess it gets optimized away - normally it should first make a copy for the return value, then call assignment operator once more to assign it to variable sc. What is your experience with this sort of optimization in different compilers? Regards, Dženan

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  • best method for creating a universal extention/plugin

    - by rashcroft44
    Hi, I'm looking to create an extension for the leading browsers (firefox, safari and ie). Its rather simple, and I'm looking for the most efficient way to go about this. I need to get the hostname of the current site the user is on, and if it matches a certain parameter(eg, mysite.org), I'll need to append to the link some extra data and refresh to the new link. What is the simplest way to go about this? (I don't want to go in the direction of a bookmarklet - since this would require the user to click. I'd like this to happen automatically) sort of something like this: if(window.location.hostname == 'mysite.org') { location.replace(document.location.href + '/&mystuff=xyz'); } Thanks!

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  • PHP setting cookies in a child class

    - by steve
    I am writing a custom session handler and for the life of me I cannot get a cookie to set in it. I'm not outputting anything to the browser before I set the cookie but it still doesn't work. Its killing me. The cookie will set if I set it in the script I define and call on the session handler with. If necessary I will post code. Any ideas people? <?php /* require the needed classes comment out what is not needed */ require_once("classes/sessionmanager.php"); require_once("classes/template.php"); require_once("classes/database.php"); $title=" "; //titlebar of the web browser $description=" "; $keywords=" "; //meta keywords $menutype="default"; //default or customer, customer is elevated $pagetitle="dflsfsf "; //title of the webpage $pagebody=" "; //body of the webpage $template=template::def_instance(); $database=database::def_instance(); $session=sessionmanager::def_instance(); $session->sessions(); session_start(); ?> and this is the one that actually sets the cookie for the session function write($session_id,$session_data) { $session_id = mysql_real_escape_string($session_id); $session_data = mysql_real_escape_string(serialize($session_data)); $expires = time() + 3600; $user_ip = $_SERVER['REMOTE_ADDR']; $bol = FALSE; $time = time(); $newsession = FALSE; $auth = FALSE; $query = "SELECT * FROM 'sessions' WHERE 'expires' > '$time'"; $sessions_result = $this->query($query); $newsession = $this->newsession_check($session_id,$sessions_result); while($sessions_array = mysql_fetch_array($sessions_result) AND $auth = FALSE) { $session_array = $this->strip($session_array); $auth = $this->auth_check($session_array,$session_id); } /* this is an authentic session. build queries and update it */ if($auth = TRUE AND $newsession = FALSE) { $session_data = mysql_real_escape_string($session_data); $update_query1 = "UPDATE 'sessions' SET 'user_ip' = '$user_ip' WHERE 'session_id' = '$session_id'"; $update_query2 = "UPDATE 'sessions' SET 'data' = '$session_data' WHERE 'session_id = '$session_id'"; $update_query3 = "UPDATE 'sessions' SET 'expires' = '$expires' WHERE 'session_id' = '$session_id'"; $this->query($update_query1); $this->query($update_query2); $this->query($update_query3); $bol = TRUE; } elseif($newsession = TRUE) { /* this is a new session, build and create it */ $random_number = $this->obtain_random(); $cookieval = hash("sha512",$random_number); setcookie("rndn",$cookieval); $query = "INSERT INTO sessions VALUES('$session_id','0','$user_ip','$random_number','$session_data','$expires')"; $this->query($query); //echo $cookieval."this is the cookie <<"; $bol = TRUE; } return $bol; }

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  • Convert user input into ToString() method inside FlowDocument in Workflow 4.0

    - by Jon Ownbey
    I have a Workflow 4.0 app that generates emails. In a dialog for creating the email body the user needs to be able to input some string value representing an existing wf instance variable to be inserted as a string at runtime. So they input something like: Email body text including <. (say ExistingVariable is an int or something like that) Any helpful hints for how to convert this text with a ToString() at runtime?

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  • UIWebView appears null when calling fro a method

    - by Alexidze
    I have a major problem when trying to access a UIWebView that was created during ViewDidLoad, the UIWebView appears null here is how i declare the property @property (nonatomic, retain) UIWebView *detailsView; the implementation @implementation iPadMainViewController @synthesize detailsView; - (void)viewDidLoad { [super viewDidLoad]; detailsView = [[UIWebView alloc] initWithFrame:CGRectMake(500, 0, 512, 768)]; [self.view addSubView:detailsView]; } When accessing from - (void)loadDetailedContent:(NSString *)s { NSLog(@"%@", detailsView); } I get NULL, is it a normal behavior or am i doing something wrong? here is the touchesBegan that is being called, from the views subclass that is being touched, -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { iPadMainViewController *mycontroller = [[iPadMainViewController alloc] init]; self.delegate = mycontroller; [self.delegate loadDetailedContent:NewsId]; }

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  • Using object's method as callback function for $.post

    - by Kirzilla
    Hello, $.Comment = function() { this.alertme = "Alert!"; } $.Comment.prototype.send = function() { var self = this; $.post( self.url, { 'somedata' : self.somedata }, function(data, self) { self.callback(data); } ); } $.Comment.prototype.callback = function(data) { alert(this.alertme); } When I'm calling $.Comment.send() debugger is saying to me that self.callback(data) is not a function What am I doing wrong? Thank you

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  • Does implementing a Java class under an open-source library's package name constitutes a modificatio

    - by Minyu
    Greetings, I understand that this is not the best forum for getting legal advices. But I am still wondering if anybody has some experience around this topic, or can point me to relevant resources that explain it. I have tried to search it online but could not find clear answers. Assuming I am using a Java open-source library from "somecompany", specifically its entities in the "org.somecompany.somepackage". During development, I found that I need to access some of the internals of that package that are not exposed through its public interface. So I thought maybe creating my own classes under the same "org.somecompany.somepackage" name would make that easier. My question is: does this constitutes a modification of the open-source library? The fully qualified name of my classes look like "org.somecompany.somepackage.myclass". It does seem an "extension" of the original library, even though I am not modifying the original library source or binary. I am also not adding my classes to the open-source jar files. Any advice or pointer to resources will be appreciated!

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  • There is more then one Point class

    - by Dmitry
    Today I hit something very annoying while working with one of my colleagues. It seems there are two Point classes in .NET and by mistake we were trying for a good few minutes to figure out why our "Point(x,y)" wouldn’t take double, but only Int. Turns out we were using the wrong one since the XAML element in question needed the version with Double. So, based on what you actually want to do, make sure you’re using the right namespace. Please see below for MSDN reference links for each namespace version of Point, hope this saves you some time. System.Windows Point (MSDN Ref - Double version) System.Dawing Point (MSDN Ref - Int version)

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  • Jquery scroll to first instance of a class (.error) for jquerytools validator

    - by Tommy Arnold
    I am using jquerytools validator on a clients website but the page using this plugin is very long so I would like to add a custom handler using the folowing code. $("#form").bind("onFail", function(e, errors) { // we are only doing stuff when the form is submitted if (e.originalEvent.type == 'submit') { $(".errormsg").html("Please scroll up and fix the highlighted errors."); //alert("Please fix the highlighted errors to continue"); } }); How would I get it to scroll up to the first instance of .error? Can you recommend any plugins for this?

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  • What's wrong with my self-defined init method?

    - by user313439
    In ClassA: - (ClassA *)initWithID:(NSString *) cID andTitle:(NSString *) cTitle { ClassAID = cID; ClassATitle = cTitle; return self; } In ClassB: - (void)cellDidSelected { ClassA *classAController = [[ClassA alloc] init]; //Program received signal: “EXC_BAD_ACCESS” when executing the following line. classAController = [classAController initWithClassAID:ClassAID andClassATitle:ClassATitle]; NSLog(@"I want to get the value of ID:%@ and Title:%@ here.", [classAController ClassATitle], [classAController ClassAID]) } Could anyone point where is wrong? Thanks a lot.

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  • MS VC++ 6 class wizard

    - by Shane MacLaughlin
    Ok, I'm developing an application that has been in pretty much continous development over the last 16 years, from C in DOS, through various flavours of C++ and now is largely based around C++ with MFC and StingRay GUIs and various other SDKs. While I use VS 2005 for the release builds, I still use MSVC 6 for much of the GUI building, simply because ClassWizard is so much quicker in this environment than the weak equivalent tools that followed. Note that I am using ClassWizard to automatically generate code for my own user defined types (see Custom DDXs) and I like to add a lot of member variables and methods in one go. Creating them one at a time as per later versions of Visual Studio for me is a big backward step. At the same time, working with multiple IDEs is also a pain. My question is in two parts; Is there any way of getting ClassWizard to work is VS 2005 or VS 2008? Is there any drop in replacement, or alternative IDE, that provides similar levels of productivty for old C++ hacks such as myself?

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  • FindControl() method throws ArithmeticException?

    - by Mark Struzinski
    I have a line of C# in my ASP.NET code behind that looks like this: DropDownList ddlStates = (DropDownList)fvAccountSummary.FindControl("ddlStates"); The DropDownList control is explicitly declared in the markup on the page, not dynamically created. It is inside of a FormView control. When my code hits this line, I am getting an ArithmeticException with the message "Value was either too large or too small for an Int32." This code has worked previously, and is in production right now. I fired up VS2008 to make some changes to the site, but before I changed anything, I got this exception from the page. Anyone seen this one before?

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