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  • Paperclip - Validate File Type but not Presence

    - by Lowgain
    I am using paperclip to handle my file uploads, and in one situation I don't want the file to be mandatory. I do however want to make sure it is a specific file type when it is present. I have this: class TestModel < ActiveRecord::Base #stuff has_attached_file :sound #etc... validates_attachment_content_type :sound, :content_type => ['audio/mp3', 'application/x-mp3'] end And when I have no sound file present, it tells me it is not one of the valid content types. I've tried adding '' to the :content_type array, which also doesn't work! I also attempted creating a lambda procedure for the :if property, but I can't get it to run without some kind of error. Anything missing here?

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  • how come we need not close the handle returned by ShellExecute ?

    - by fred-hh
    On success, ShellExecute returns a handle. Do we need to close this handle, and if so, how ? According to examples published my Microsoft, we need not close this handle. But the doc of ShellExecute itself is mute on the subject. Can you confirm we indeed do not need to close this handle ? But then, how can a handle be valid and in no need of being closed ??? Which of the following statements is/are true: the handle is invalid and we can't do anything with it; the handle is never freed and there is a (Microsoft-sponsored) memory leak (until the caller program ends); the handle is automatically freed by the system at some time and never reused afterwards (- another kind of resource leak). Only on trying to use it can we know whether it still points to something. what else ?

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  • jQuery Validate - Require at least one from group, plus additional items.

    - by Kevin Pullin
    I'm attempting to use 'jQuery Validate' on a form that requires an email address plus either all items of a shipping address completed or none at all. Using the sample provided by the solution to this question: jQuery Validate - “Either skip these fields, or fill at least X of them”, I have been able to successfully solve the validation of the address group. The problem, however, is that the logic for validating the email address field does not work. From debugging the Validate scripts, the "re-entrant" validation code triggered by calling 'fields.data('being_validated', true).valid();' in the linked example results in a reset of all previously validated errors (i.e. the email validation error is cleared). I have modified some existing samples, the first in which removes the offending line and the second with it included. Email Validation Working Email Validation Fails Any tips or suggestions on how to properly solve this or work around the failure?

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  • Getting Google Chrome to Ignore IE Javascript

    - by swajak
    I'm creating a slideshow using javascript that fades images. Awhile back, I discovered that to change the opacity of an image, I have to use a different API, depending on whether the page is viewed in Firefox or IE. Firefox: img.style.opacity = [value 0 to 1]; IE: img.style.filter="progid:DXImageTransform.Microsoft.Alpha(opacity= [value 0 to 100] )"; So, currently, I use <script LANGUAGE="JScript"> for code that is meant for IE. This was suggested in the Mozilla docs. The problem: Chrome thinks my <script LANGUAGE="JScript"> code is valid, when it is not. How to make Chrome ignore the code inside <script LANGUAGE="JScript"> ? Or how to make my opacity code cross-browser?

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  • Is it possible to BitBlt directly on to a GDI+ bitmap?

    - by jnm2
    I am trying to BitBlt from an HBITMAP to a GDI+ bitmap. I tried this, but nothing happens: Bitmap Buffer = New Bitmap(608, 392) Graphics BufferGraphics = Graphics.FromImage(Buffer); IntPtr hBufferDC = BufferGraphics.GetHdc(); ... BitBlt(hBufferDC, x, y, width, height, hInputDC, 0, 0, SRCCOPY); EDIT: Apparently the hDC doesn't work if I acquire it and then much later use it with BitBlt. I needed to make sure the hDC was still valid. This is the solution: Bitmap Buffer = New Bitmap(608, 392) Graphics BufferGraphics = Graphics.FromImage(Buffer); ... IntPtr hBufferDC = BufferGraphics.GetHdc(); BitBlt(hBufferDC, x, y, width, height, hInputDC, 0, 0, SRCCOPY); BufferGraphics.ReleaseHdc(hBufferDC); Does anyone know why this change is necessary? Why might it not work to use an hDC that was gotten earlier as in the first example?

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  • getimagesize on alfresco image

    - by SupFrig
    i'm working on a front display for an alfresco filled with pictures. i'm building my pictures url like this : http://myHost.com:8080/share/proxy/alfresco-noauth/api/node/content/workspace/SpacesStore/bf0a8b21-b8d9-487d-a529-dee8c49d7c6f/filetitle.jpg?alf_ticket=myTicket where myHost is the server and myTicket is the ticket generated at this url : http://myHost.com:8080/alfresco/service/api/login?u=login&pw=password Picture is displaying correctly with this url, but i want to use phpthumb to resize it, and when i try to use it on my picture, i get an http 500 error on the script and the following log : PHP Warning: getimagesize(http://myHost.com:8080/share/proxy/alfresco-noauth/api/node/content/workspace/SpacesStore/bf0a8b21-b8d9-487d-a529-dee8c49d7c6f/filetitle.jpg?alf_ticket=myTicket): failed to open stream: HTTP request failed! HTTP/1.1 401 Non-Autorisé I shouldn't hit the authentification, since my link has a valid ticket (I don't hit authentification when i display normally my picture)

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  • Java compilers or JVM languages that support goto?

    - by unknown
    Is there a java compiler flag that allows me to use goto as a valid construct? If not, are there any third-party java compilers that supports goto? If not, are there any other languages that support goto while at the same time can easily call methods written in Java? The reason is I'm making a language that is implemented in Java. Gotos are an important part of my language; I want to be able to compile it to native or JVM bytecode, although it has to be able to easily use Java libraries (ie. C supports goto, but to use it I'd have to rewrite the libraries in C). I want to generate C or Java, etc source files, and not bytecode or machine code. I'm using a third-party compiler to do that.

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  • Using WINAPI ReadConsole

    - by Jim Fell
    I am trying to use the WINAPI ReadConsole() to wait for any keypress at the end of my Win32 console application. CONSOLE_READCONSOLE_CONTROL tControl; char pStr[65536]; DWORD dwBufLen = 1; DWORD dwCtl; tControl_c.nLength = sizeof( CONSOLE_READCONSOLE_CONTROL ); tControl_c.nInitialChars = 0; tControl_c.dwControlKeyState = 0; tControl_c.dwCtrlWakeupMask = NULL; pBuf[0] = 0x00; do { ReadConsole( hConsole_c, pStr, (*pBufLen) * sizeof(TCHAR), pBufLen, &tControl ); } while ( pStr[0] == 0x00 ); The code executes without throwing an exception. However, when the ReadConsole() function executes the error code ERROR_INVALID_HANDLE (0x06) is flagged. I have verified hConsole_c to be a valid handle. Does anyone have any insight as to what I am doing wrongly? I am using Visual C++ 2008 Express Edition. Thanks.

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  • Why is Firefox prompting to download a file that is POST'd to?

    - by alex
    This is the most peculiar thing. It is from an old in house CMS. When I attempt to submit my changes, it prompts to save the file linked in the action attribute of the form. Headers Request POST /~site/edit/articles/article_save.php?id=54 HTTP/1.1 Host: example.com User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 115 Connection: keep-alive Referer: http://example.com Content-Type: multipart/form-data; boundary=---------------------------10102754414578508781458777923 Content-Length: 940 -----------------------------10102754414578508781458777923 Content-Disposition: form-data; name="title" Home Content -----------------------------10102754414578508781458777923 Content-Disposition: form-data; name="catid" 18 -----------------------------10102754414578508781458777923 Content-Disposition: form-data; name="activecheck" 1 -----------------------------10102754414578508781458777923 Content-Disposition: form-data; name="image" -----------------------------10102754414578508781458777923 Content-Disposition: form-data; name="contentWidgToolbarSelectBlock" <p> -----------------------------10102754414578508781458777923 Content-Disposition: form-data; name="content" <p>Edit your article in this text box.</p> -----------------------------10102754414578508781458777923 Content-Disposition: form-data; name="contentWidgEditor" true -----------------------------10102754414578508781458777923-- Response HTTP/0.9 200 OK And then Firefox shows.... I can't determine from the response headers as to why this is prompting to open/save. It has always worked. All other PHP files on the site work fine. Anyone have a clue? Thanks Update Apparently, it just crashes Safari.

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  • Jquery change text ajax request problem

    - by blasteralfred
    Hi, I have an html file as coded below. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <style> .style1 { background-color: #c3d9ff; font-family:arial,sans-serif; } .style2 { text-align: center; font-weight: bold; } .style3 { background-color: #FFFFFF; font-family:arial,sans-serif; text-align: center; font-weight: bold; } .style4 { background-color: #FFFFFF; font-family:arial,sans-serif; text-align: left; } body { font-family:Verdana, Arial, Helvetica, sans-serif; font-size:15px; background-color: ; } .action_button { font-weight:bold; float:right; } </style> <script type="text/javascript" src="jquery-1.4.4.min.js"></script> <script type="text/javascript">$(function() { $('.action_button').click(function() { var $button = $(this); $.ajax({ type: 'POST', url: 'action.php', data: 'id='+ $(this).attr('id'), cache: false, success: function(result) { var $row = $button.closest('tr'); var $col = $row.find('.clickme2'); $row.fadeOut('fast', function() { if (result == 'ACTIVATED') { $button.text('Activate'); $col.text('Active'); } else if (result == 'INACTIVATED') { $button.text('Inactivate'); $col.text('Inactive'); } }).fadeIn(); } }); return false; }); }); </script> </head> <body> <table style="width: 90%" align="center" class="style1"> <tr> <td colspan="7" class="style2">MANAGER</td> </tr> <tr> <td class="style3" style="width: 139px">Col1</td> <td class="style3" style="width: 139px">Col2</td> <td class="style3" style="width: 139px">Col3</td> <td class="style3" style="width: 139px">Col4</td> <td class="style3" style="width: 139px">Col5</td> <td class="style3" style="width: 200px">Col6</td> <td class="style3" style="">Action</td> </tr> </table> <td id="main" class="main"> <td class="update"> <table style="width: 90%" align="center" class="style1"> <tr> <td class="style4" style="width: 139px">DataA1</td> <td class="style4" style="width: 139px">DataA2</td> <td class="style4" style="width: 139px">DataA3</td> <td class="style4" style="width: 139px">DataA4</td> <td class="style4 clickme2" style="width: 139px">Inactive</td> <td class="style4" style="width: 200px">DataA6</td> <td> <button href="#" id="DataA1" class="action_button" style="width:80px;height:"> Activate</button> </td> </tr> <tr> <td class="style4" style="width: 139px">DataB1</td> <td class="style4" style="width: 139px">DataB2</td> <td class="style4" style="width: 139px">DataB3</td> <td class="style4" style="width: 139px">DataB4</td> <td class="style4 clickme2" style="width: 139px">Inactive</td> <td class="style4" style="width: 200px">DataB6</td> <td> <button href="#" id="DataB1" class="action_button" style="width:80px;height:"> Activate</button> </td> </tr> <tr> <td class="style4" style="width: 139px">DataC1</td> <td class="style4" style="width: 139px">DataC2</td> <td class="style4" style="width: 139px">DataC3</td> <td class="style4" style="width: 139px">DataC4</td> <td class="style4 clickme2" style="width: 139px">Active</td> <td class="style4" style="width: 200px">DataC6</td> <td> <button href="#" id="DataC1" class="action_button" style="width:80px;height:"> Inactivate</button> </td> </tr> <tr> <td class="style4" style="width: 139px">DataD1</td> <td class="style4" style="width: 139px">DataD2</td> <td class="style4" style="width: 139px">DataD3</td> <td class="style4" style="width: 139px">DataD4</td> <td class="style4 clickme2" style="width: 139px">Active</td> <td class="style4" style="width: 200px">DataD6</td> <td> <button href="#" id="DataD1" class="action_button" style="width:80px;height:"> Inactivate</button> </td> </tr> <tr> <td class="style4" style="width: 139px">DataE1</td> <td class="style4" style="width: 139px">DataE2</td> <td class="style4" style="width: 139px">DataE3</td> <td class="style4" style="width: 139px">DataE4</td> <td class="style4 clickme2" style="width: 139px">Inactive</td> <td class="style4" style="width: 200px">DataE6</td> <td> <button href="#" id="DataE1" class="action_button" style="width:80px;height:"> Activate</button> </td> </tr> </table> </td> </td> </body> </html> The fage contain a table with 5 rows with a button at the end of the row. On click, the button submits data to a php file and then changes text and blurs according to the response from php file. The blur function and change text function in col5 is working well. But the change text function in button got really buggy. The button text should change accordingly. the text of button "Activate" should change to "Inactivate" and the text of button "Inactivate" should change to "Activate" on click / successful submission.. This is not working.. Below is the php file code <?php $id = $_POST[id]; if($id=="DataA1"){ echo "ACTIVATED"; } if($id=="DataB1"){ echo "ACTIVATED"; } if($id=="DataE1"){ echo "ACTIVATED"; } if($id=="DataC1"){ echo "INACTIVATED"; } if($id=="DataD1"){ echo "INACTIVATED"; } ?> Thanks in advance.. :) blasteralfred

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  • Please Find the error :

    - by jagdeep
    using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; public partial class Expt : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Bttnadd_Click(object sender, EventArgs e) { FileUpload1.SaveAs(MapPath("~/img//"+DateTime.Now.ToString()+FileUpload1.FileName)); } } Exception Details: System.Web.HttpException: ~/img//1/1/2011 1:47:52 PMWinter.jpg is not a valid virtual path.

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  • System.Timers.Timer leaking due to "direct delegate roots"

    - by alimbada
    Apologies for the rather verbose and long-winded post, but this problem's been perplexing me for a few weeks now so I'm posting as much information as I can in order to get this resolved quickly. We have a WPF UserControl which is being loaded by a 3rd party app. The 3rd party app is a presentation application which loads and unloads controls on a schedule defined by an XML file which is downloaded from a server. Our control, when it is loaded into the application makes a web request to a web service and uses the data from the response to display some information. We're using an MVVM architecture for the control. The entry point of the control is a method that is implementing an interface exposed by the main app and this is where the control's configuration is set up. This is also where I set the DataContext of our control to our MainViewModel. The MainViewModel has two other view models as properties and the main UserControl has two child controls. Depending on the data received from the web service, the main UserControl decides which child control to display, e.g. if there is a HTTP error or the data received is not valid, then display child control A, otherwise display child control B. As you'd expect, these two child controls bind two separate view models each of which is a property of MainViewModel. Now child control B (which is displayed when the data is valid) has a RefreshService property/field. RefreshService is an object that is responsible for updating the model in a number of ways and contains 4 System.Timers.Timers; a _modelRefreshTimer a _viewRefreshTimer a _pageSwitchTimer a _retryFeedRetrievalOnErrorTimer (this is only enabled when something goes wrong with retrieving data). I should mention at this point that there are two types of data; the first changes every minute, the second changes every few hours. The controls' configuration decides which type we are using/displaying. If data is of the first type then we update the model quite frequently (every 30 seconds) using the _modelRefreshTimer's events. If the data is of the second type then we update the model after a longer interval. However, the view still needs to be refreshed every 30 seconds as stale data needs to be removed from the view (hence the _viewRefreshTimer). The control also paginates the data so we can see more than we can fit on the display area. This works by breaking the data up into Lists and switching the CurrentPage (which is a List) property of the view model to the right List. This is done by handling the _pageSwitchTimer's Elapsed event. Now the problem My problem is that the control, when removed from the visual tree doesn't dispose of it's timers. This was first noticed when we started getting an unusually high number of requests on the web server end very soon after deploying this control and found that requests were being made at least once a second! We found that the timers were living on and not stopping hours after the control had been removed from view and that the more timers there were the more requests piled up at the web server. My first solution was to implement IDisposable for the RefreshService and do some clean up when the control's UnLoaded event was fired. Within the RefreshServices Dispose method I've set Enabled to false for all the timers, then used the Stop() method on all of them. I've then called Dispose() too and set them to null. None of this worked. After some reading around I found that event handlers may hold references to Timers and prevent them from being disposed and collected. After some more reading and researching I found that the best way around this was to use the Weak Event Pattern. Using this blog and this blog I've managed to work around the shortcomings in the Weak Event pattern. However, none of this solves the problem. Timers are still not being disabled or stopped (let alone disposed) and web requests are continuing to build up. Mem Profiler tells me that "This type has N instances that are directly rooted by a delegate. This can indicate the delegate has not been properly removed" (where N is the number of instances). As far as I can tell though, all listeners of the Elapsed event for the timers are being removed during the cleanup so I can't understand why the timers continue to run. Thanks for reading. Eagerly awaiting your suggestions/comments/solutions (if you got this far :-p)

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  • Ajax Post Request Returns JSON but Deferred Fails

    - by imrane
    I have a cross-domain POST request to http://api.local/user/auth - my API endpoint. I allow Cross Domain requests in my api with CORS. Using Chrome if that makes a difference. I get a valid server JSON response with 200 Status Code but I am using deferreds from a backbone model like so: @model.save() .fail(-> console.log 'sync fail') .success -> console.log 'sync OK' And I consistently get a 'sync fail' instead of the expected 'sync OK' Thoughts?

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  • XSLT: Transforming into non-xml content?

    - by Ian Boyd
    Is it possible to use XSLT to transform XML into something other than XML? e.g. i want the final non-xml content: <HTML> <BODY> <IMG src="file1.png"><BR> <IMG src="file2.png"><BR> ... <IMG src="filen.png"><BR> </BODY> </HTML> You'll notice this document is HTML, because in HTML IMG and BR tags are forbidden from having a closing tag. This constrasts with xhtml, the reformulation of HTML using xml, where all elements are required from having a closing tag (because in xml every tag must be closed). Is it possible, using XSLT, to generate non-xml output? Another example of non-xml output might be: INSERT INTO Documents (Filename) VALUES ('file1.png') INSERT INTO Documents (Filename) VALUES ('file2.png') ... INSERT INTO Documents (Filename) VALUES ('file3.png') The reason i ask is that as soon as my XSLT contains an <IMG>, the stylesheet contains an error; no closing </IMG>.

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  • Implicit parameter in Scalaz

    - by Thomas Jung
    I try to find out why the call Ø in scalaz.ListW.<^> works def <^>[B: Zero](f: NonEmptyList[A] => B): B = value match { case Nil => Ø case h :: t => f(Scalaz.nel(h, t)) } My minimal theory is: trait X[T]{ def y : T } object X{ implicit object IntX extends X[Int]{ def y = 42 } implicit object StringX extends X[String]{ def y = "y" } } trait Xs{ def ys[T](implicit x : X[T]) = x.y } class A extends Xs{ def z[B](implicit x : X[B]) : B = ys //the call Ø } Which produces: import X._ scala> new A().z[Int] res0: Int = 42 scala> new A().z[String] res1: String = y Is this valid? Can I achieve the same result with fewer steps?

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  • How can I change GWT's widget CSS values?

    - by Xorty
    Basically, I like default theme widgets. However, I need to change font size on DecoratedStackPanel widget. I think it should be possible with something like this: decoratedStackPanel.getElement().getStyle().setProperty("fontSize", "12pt"); However, "fontSize" is not valid name for property and I didn't find way how to get all element's properties. Therefore, I don't know correct property name. Any ideas? Please, don't post about inheriting widget or writing custom CSS. I like default one but the font size. This should be possible afaik.

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  • Help with calling a secure (SSL) webservice in Android.

    - by mmattax
    I'm new to Android and am struggling to make a call to an SSL web service for an Android Application. My code is as follows: Log.v("fs", "Making HTTP call..."); HttpClient http = new DefaultHttpClient(); HttpGet request = new HttpGet("https://example.com/api"); try { String response = http.execute(request, new BasicResponseHandler()); Log.v("fs", response); } catch (Exception e) { Log.v("fs", e.toString()); } The Output is: Making HTTP call... javax.net.SSLPeerUnverifiedException: No peer certificate Any suggestions to make this work would be great. EDIT I should note that this is a valid cert. It is not self-signed.

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  • .NET Recaptcha https

    - by TygerKrash
    We've started using the ASP.NET recaptcha control and it works fine. but one of the requirements we have is that all outbound traffic goes over Https. I know that recaptcha supports https, but It's not clear how to configure (or even if it is configurable) when using the ASP.NET plugin option. has anyone got any experience of this? I'll expand a little on what I've found so far.... The Recaptcha package contains 3 public classes RecaptchaControl, RecaptchaValidator and RecaptchaResponse RecaptchaControl is an Asp.NET control, the recaptcha specific methods on there seem to be concerning themes/look and feel. An instance of the Validator has a RemoteIP field (which I presume would represent the verification server), but I can't a way of binding that to the control. RecaptchaResponse seems to more or less represent an enum with possible responses (valid/invalid/failed to connect).

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  • Twitter API + OAuth - 401 error developing locally using reverse SSH tunnel

    - by oliland
    I'm developing a django application which lets users connect their Twitter account. As I'm developing locally, I have set up a reverse SSH tunnel so that the Twitter API has a valid callback url (myserver.net): ssh -nNTR :6969:localhost:8000 myserver.net On successful authentication, Twitter passes back its OAuth access tokens to myserver.net, which in turn attempts to access Twitter's API, which returns a 401 error. I assume that because the callback is different to the address which is accessing the API (myserver.net / localhost), Twitter denies me access. I have tried this: export http_proxy="http://myserver.net:3128" Where myserver.net:3128 is running a Squid Proxy server to tunnel Twitter's API requests from my development machine so they appear to be coming from myserver, but receive the same 401 error. When I deploy to a server with a proper hostname / static IP address it works fine. What else do I need to do?

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  • Does Python work in larger teams?

    - by Kugel
    I read this post last night and it got me thinking. I like python and "batteries", pypi and such. But I've only done python solo. Never tried it in a team. Are the points that Ted mentions valid? If they are how do teams cope with them? Does Python work in teams or even large teams? Or it kills productivity? I personally see the problems he mentions when I come back to my old code. Even when working with other modules sometimes I need to peek inside. I would like to hear people with experience on this.

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  • Domain Model and Contracts

    - by devoured elysium
    I am modelling a DVD Rental Store: A Client gives its clientNumber to the System. The System checks whenever the given clientNumber is valid. The Client gives the name of the DVD he wants to rent. ... n. ...I will later have to form an association between a new instance of "RentDVD" class concept to the current Client c. My Domain Model is something like: I've made the Contract for the first and second operations as: Preconditions: none Postconditions: there exists a Client c such that c.clientNumber = clientNumber. Now, I don't know if I should form an association between this Client c and the DVDStore(that I intend to use as front-end). If I don't make the association, how will I later be able to "reference" this same Client? Should I be making an association between Client and a different concept? Thanks

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  • javascript: "Object doesn't support this property or method" when ActiveX object called.

    - by agnieszka
    I've got simple html on Login.aspx with an ActiveX object: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head><title></title> <script language="javaScript" type="text/javascript"> function getUserInfo() { var userInfo = MyActiveX.GetInfo(); form1.info.value = userInfo; form1.submit(); } </script> </head> <body onload="javascript:getUserInfo()"> <object id="MyActiveX" name="MyActiveX" codebase="MyActiveX.cab" classid="CLSID:C63E6630-047E-4C31-H457-425C8412JAI25"></object> <form name="form1" method="post" action="Login.aspx"> <input type="hidden" id="info" name="info" value="" /> </form> </body> </html> The code works perfectly fine on my machine (edit: hosted and run), it does't work on the other: there is an error "Object doesn't support this property or method" in the first line of javascript function. The cab file is in the same folder as the page file. I don't know javascript at all and have no idea why is the problem occuring. Googling didn't help. Do you ave any idea? Edit: on both machines IE was used and activex was enabled. Edit2: I also added if (document.MyActiveX) at the beggining of the function and I still get error in the same line of code - I mean it looks like document.MyActiveX is true but calling the method still fails

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  • VB.net Need Text Box to Only Accept Numbers

    - by Rico Jackson
    I'm fairly new to VB.net (self taught) and was just wondering if someone out there could help me out with some code. I'm not trying to do anything to invovled, just have a textbox that takes numeric value from 1 to 10. I don't want it to take a string or any number above 10. If some types a word or character an error message will appear, telling them to enter a valid number. This is what I have, obviously it's not great as I am having problems. Thanks again to anyone who can help. If TxtBox.Text > 10 Then MessageBox.Show("Please Enter a Number from 1 to 10") TxtBox.Focus() ElseIf TxtBox.Text < 10 Then MessageBox.Show("Thank You, your rating was " & TxtBox.Text) Total = Total + 1 ElseIf IsNumeric(TxtBox.Text) Then MessageBox.Show("Thank you, your rating was " & ValueTxtBox.Text) End If ValueTxtBox.Clear() ValueTxtBox.Focus()

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  • Why does SQLite not bring back any results from my database

    - by tigermain
    This is my first SQLite based iPhone app and I am trying to get it to read a menu hierarchy from my database. The database appears to be registered fine as the compiled statement doesnt error (tried putting in valid table name to test) but for some reason sqlite3_step(compiledStmt) doesnt ever equal SQLITE_ROW as if to suggest there is no data in there; which there is. sqlite3 *database; menu = [[NSMutableArray alloc] init]; if (sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) { const char *sqlStmt = "SELECT * FROM Menu"; sqlite3_stmt *compiledStmt; if (sqlite3_prepare_v2(database, sqlStmt, -1, &compiledStmt, NULL) == SQLITE_OK) { while (sqlite3_step(compiledStmt) == SQLITE_ROW) { NSString *aTitle = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStmt, 1)]; MenuItem *menuItem = [[MenuItem alloc] init]; menuItem.title = aTitle; [menu addObject:menuItem]; [menuItem release]; } } else { NSLog(@"There is an error with the SQL Statement"); } sqlite3_finalize(compiledStmt); } sqlite3_close(database);

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  • What XSS/CSRF attacks (if any) to be aware of when allowing video embeds?

    - by fireeyedboy
    I've been assigned a project for a website where users will be allowed to upload video's (using a YouTube API) but more importantly (for me) they will also be allowed to submit video embed codes (from numerous video sites, YouTube, Vimeo, etc. etc.). Having no experience with allowing users to embed video: How can I best protect against cross site scripting and/or cross site request forgery attacks specifically for video embedding? What are some of the common pitfalls to watch for? At a minumum I would think to strip all tags except <object> and <embed>. But I have a feeling this will not be enough, will it? If it is of importance, the environment will be: PHP/Zend Framework MySQL Bonuspoints: Is there a common minimum golden rule/code template for video embed codes that are valid across all video sites that I could use to filter the input?

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