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• Do the UI first with SketchFlow - Do I concern about the UI look?

  - by stacker

  There is no questions: UI-First Software Development. But what does it takes to do the UI first? I started to build a website, a complicated one, and know I start to concern about the UI. Instead to start coding html+css, I decided to start with SkecthFlow. now, I'm very confused. Do I want to build a exact sketch? meaning to think about colors, fonts make sure that the button will look like a web link... etc, or just build the application sketch flow? meaning put a textboxes and buttons. Do I need to implement every thing in SketchFlow first? I'm looking for best practice.

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• How do I use Mercurial?

  - by Derek

  I'm assuming Mercurial is for having an updated website and it archiving the old stuff? Easy to test things and such? My question is, how exactly should I get started and can somebody give me a crash course in using Mercurial and using the following techs below: Notepad++ for coding FTP PHP/MySQL Jquery & other js libraries I use windows and would like to keep things fairly simple. I'm developing 1 website currently and want some kind of CVS system in place. Or should I just stick to my current edit file in notepad++ and upload via ftp method and make a backup copy of everything every once and a while? Any thoughts? EDIT: I'm doing http://bugtracker.gttools.com/public/wiki/bluehost/Mercurial right now in order to try and 'install' it.

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• What has bigger priority: opacity or z-index in browsers?

  - by MartyIX

  Hi, I'm coding a "popup window" in javascript and I've come across an interesting thing: http://img91.imageshack.us/img91/4761/error01cropped.png - the navy square under the popup window is visible even though I would expect it to be hidden. The popup was added after the square so it should be on the top. CSS opacity property of the navy square is 0.3 (from what I've tried it seems that every number from the interval (0,1) would yield the same result) if I change it to 1 then it behaves as expected (i.e. the part of the square under the popup is hidden). I've tried to use z-index property and set 10 for square and 100 for the popup but it doesn't change anything. What am I missing? Why is the part of square displayed? Thanks for help!

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• Typecasting a floating value or using the math.h floor* functions?

  - by nobody

  Hi, I am coding up an implementation of Interpolation Search in C. The question is actually rather simple, I need to use the floating operations to do linear interpolation to find the correct index which will eventually be an integer result. In particular my probe index is: t = i + floor((((k-low)/(high-low)) * (j-i))); where, i,j,k,t are unsigned ints, and high,low are doubles. Would this be equivalent to: t = i + (unsigned int)(((k-low)/(high-low)) * (j-i)); Is there any reason I would actually want to use math.h floor* functions over just a simple (int) typecast?

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• Magento Design Patterns

  - by JonB

  Magento, IMHO, represents a PHP system that is built on well thought-out coding principles - reuseable design patterns being one of them. In terms of an example of a PHP system, I think it can be considered pretty cutting edge and therefore worth considering from an architectural point of view. As I understand it, there are many design patterns that are available to the OOP developer. Seeing such patterns being put to use in an open-source system such as Magento allows a developer to view examples of such patterns in real use and in situ, rather than in examples that can sometimes be rather achedemic, and even a little misleading. As such, I am wondering what patterns, other than the ones I have listed below, Magento programmers have used when developing for Magento. As a note, I understand that some of these patterns are in place as a consequence of being built on the Zend Framework, MVC / Front Controller being a couple of them, The obvious ones are: Factory: $product = Mage::getModel('catalog/product'); Singleton: $category = Mage::getSingleton('catalog/session'); Registry: $currentCategory = Mage::registry('current_category');

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• Why do SQL connection leave parameters in?

  - by acidzombie24

  While coding with sqlite everytime i always had the exact number of parameters and when i executed the query i always had 0 parameters after it. I kept using the cmd object and it worked fine. Now while porting to use sql server (2008) my SqlConnection has parameters left over from a successful command. Why? I seem to be able to create tables without the problem (then again i may have use a clone of an empty cmd since i use recursion). Does SqlCommand always leave the parameters in after a query? This always breaks the following query unless i do parameter.clear(). Should i create a new SqlCommand object? or use parameter.clear() each time? I'm somewhat confused.

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• Security approach in web application

  - by meep

  Hello everyone. I am designing a web application in ASP.NET / C# where each registered user has the ability to add/modify/delete rows based on their user-id. Take this example: I am going to edit my route on the page /route.aspx?routeid=854 which belongs to me (user-id: 1). But because I am a curious guy I try to access /route.aspx?routeid=855 which belongs to another user (user-id: 2). How can I best avoid people from accessing other peoples data? Should I send each user id (from session) with each database-call, should I validate user/password on every page load or what is the best and most secure approach? I hope I made this clear enough.

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• Dot Net Nuke app_offline randomly being generated

  - by chelfers

  We have had multiple DNN sites running for quite a few months now without any issues. Twice in the last 3 days our sites have gone offline by the addition of the app_offline.htm file in the root dir. There is only one developer with access to the sites at a coding / directory viewing level and the file is generated at weird times times when he is NOT accessing our network. We are not publishing anything to the server ( and have not published any .net code in days ), upgrading, changing code, or even modifying content. Has anyone run into this issue?

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• What guides or standards do you use for version control in your team ?

  - by PaulHurleyuk

  I'm starting to do a small amount of development within my company. I'm intending to use Git for version control, and I'm interested to see what guidelines or standards people are using around version in their groups, similar to coding standards are often written within the group for the group. I'm assuming there will be things like; Commit often (at least every day/week/meeting etc) Release builds are always made from the master branch Prior to release, a new branch will be created for Testing and tagged as such. only bug fixes from this point onwards. The final release of this will be tagged as such and the bug fixes merged back into the trunk Each developer will have a public repo New features should get their own branch Obviously a lot of this will depend on what cvs you're using and how you've structured it. Similar Questions; http://stackoverflow.com/questions/273695/git-branch-naming-best-practices http://stackoverflow.com/questions/2006265/is-there-an-standard-naming-convention-for-git-tags

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• Converting a navbar to a tabbar app

  - by Nick

  Hey guys, I was wondering how to convert a NavigationController style app into a TabBarcontroller style app. I changed my mainwindow to not contain a navigationcontroller anymore (but a tabbarcontroller instead) and my delegate also appropiatly, but when I launch the app something still thinks I want a navigationController: Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key navigationController.' Stack trace: #0 0x020fa004 in ___TERMINATING_DUE_TO_UNCAUGHT_EXCEPTION___ #1 0x96fc0509 in objc_exception_throw #2 0x020ee1c1 in -[NSException raise] #3 0x000d8a78 in _NSSetUsingKeyValueSetter #4 0x000d84c5 in -[NSObject(NSKeyValueCoding) setValue:forKey:] #5 0x004fb4c8 in -[UIRuntimeOutletConnection connect] #6 0x020af92f in -[NSArray makeObjectsPerformSelector:] #7 0x004f9f7f in -[UINib instantiateWithOptions:owner:loadingResourcesFromBundle:] #8 0x004fbfcb in -[NSBundle(NSBundleAdditions) loadNibNamed:owner:options:] #9 0x0033b0a6 in -[UIApplication _loadMainNibFile] #10 0x0034482a in -[UIApplication _runWithURL:sourceBundleID:] #11 0x00341b88 in -[UIApplication handleEvent:withNewEvent:] #12 0x0033d6d3 in -[UIApplication sendEvent:] #13 0x003440b5 in _UIApplicationHandleEvent #14 0x0265aed1 in PurpleEventCallback #15 0x02092b80 in CFRunLoopRunSpecific #16 0x02091c48 in CFRunLoopRunInMode #17 0x0033be69 in -[UIApplication _run] #18 0x00345003 in UIApplicationMain #19 0x00002ec8 in main at main.m:14 Where can I specify the app is a tabbarcontrolled app, instead of a navigationbarcontrolled app? Thanks in advance,

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• StringBuilder/StringBuffer vs. "+" Operator

  - by matt.seil

  I'm reading "Better, Faster, Lighter Java" (by Bruce Tate and Justin Gehtland) and am familiar with the readability requirements in agile type teams, such as what Robert Martin discusses in his clean coding books. On the team I'm on now, I've been told explicitly not to use the "+" operator because it creates extra (and unnecessary) string objects during runtime. But this article: http://www.ibm.com/developerworks/java/library/j-jtp01274.html Written back in '04 talks about how object allocation is about 10 machine instructions. (essentially free) It also talks about how the GC also helps to reduce costs in this environment. What is the actual performance tradeoffs between using "+," "StringBuilder," or "StringBuffer?" (In my case it is StringBuffer only as we are limited to Java 1.4.2.) StringBuffer to me results in ugly, less readable code, as a couple of examples in Tate's book demonstrates. And StringBuffer is thread-synchronized which seems to have its own costs that outweigh the "danger" in using the "+" operator. Thoughts/Opinions?

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• Is there a design pattern for injecting methods into a class?

  - by glenn I.

  I have a set of classes that work together (I'm coding in javascript). There is one parent class and a number of child classes that are instantiated by the parent class. I have a number of clients of these classes that each need to add on one more methods to the parent or child classes. Rather than having each client inherit from these classes, which is doable but messy because of the child classes, I am having these clients pass functions into the parent class when they instantiate the main class. The main class creates the methods dynamically and the clients can call the methods like they were there all along. My questions are: is this a sensible thing to do? what would the design pattern be for what I am doing?

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• Shipping jar with default .properties file configurations

  - by Maxim Veksler

  Hello, I would like to include a default default.properties file in my .jar library. The idea is to allow the user to override my default is he so desires. I'm having trouble getting the classloader to play nicely with this setup, I've tried to look a at popular jars such as log4j, common-* and others and it seems that no one is implementing this idea. Am I going the wrong way? The second best thing is hard coding the values, and using the default if no .properties key has been found, but this sound oh so wrong. Suggestions?

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• Looking for a safe, portable password-storage method

  - by Maciek

  Hello, I'm working on C++ project that is supposed to run on both Win32 and Linux, the software is to be deployed to small computers, usually working in remote locations. Recently, our client has requested that we introduce access control via password protection. We are to meet the following criteria : Support remote login Support remote password change Support remote password retrieval Support data retrieval on accidental/purposeful deletion Support secure storage I'm capable of meeting the "remote" requirements using an existing library, however what I do need to consider is a method of storing this data, preferably in a way that will work on both platforms and will not let the user see it/read it, encryption is not the issue here - it's the storage method itself. Can anyone recommend a sage storage method that could help me meet those criteria?

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• How do I display data in a table and allow users to copy selected data?

  - by cfouche

  Hi I have a long list of data that I want to display in table format to users. The data changes when the user performs certain actions in my app, but it is not directly editable. So the user can create a reasonably big table of data, but he can't change individual cells' values. However, I do want the data to be copy-able. So I want it to be possible for the user to select some or all of the cells, and do a ctrl-C to copy the data to his clipboard, and then a ctrl-V to paste the data to an external text editor. At the moment, I'm displaying the data in a ListView with a GridView and this works perfectly, except that GridView doesn't allow one to copy data. What other options can I try? Ours is a WPF app, coding in c#.

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• Is php fileinfo sufficient to prevent upload of malicious files?

  - by Scarface

  Hey guys, I have searched around a bit, and have not really found a professional type response to how to have secure fileupload capability so I wanted to get the opinion of some of the experts on this site. I am currently allowing upload of mp3s and images, and while I am pretty confident in preventing xss and injection attacks on my site, I am not really familiar with fileupload security. I basically just use php fileinfo and check an array of accepted filetypes against the filetype. For images, there is the getimagesize function and some additional checks. As far as storing them, I just have a folder within my directory, because I want the users to be able to use the files. If anyone could give me some tips I would really appreciate it.

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• Not getting redirection to custom error page using custom errors - ASP.Net

  - by weevie

  Here's my Application_OnError event sink in global.asax.vb: Sub Application_OnError(ByVal sender As Object, ByVal e As EventArgs) Dim innerMostException As Exception = getInnerMostException(Me.Context.Error) If TypeOf innerMostException Is AccessDeniedException Then Security.LogAccessDeniedOccurrence(DirectCast(innerMostException, AccessDeniedException)) Dim fourOhThree As Integer = DirectCast(HttpStatusCode.Forbidden, Integer) Throw New HttpException(fourOhThree, innerMostException.Message, innerMostException) End If End Sub You'll see that if we've got an innermost Exception of type AccessDeniedException we throw a new HTTPExcpetion with a status code of 403 AKA 'forbidden' Here's the relevant web.config entry: <customErrors defaultRedirect="~/Application/ServerError.aspx" mode="On"> <error statusCode="403" redirect="~/Secure/AccessDenied.aspx" /> </customErrors> So what we're expecting is a redirect to the AccessDenied.aspx page. What we get is a redirect to the ServerError.aspx page. We've also tried this: Sub Application_OnError(ByVal sender As Object, ByVal e As EventArgs) Dim innerMostException As Exception = getInnerMostException(Me.Context.Error) If TypeOf innerMostException Is AccessDeniedException Then Security.LogAccessDeniedOccurrence(DirectCast(innerMostException, AccessDeniedException)) Context.Response.StatusCode = DirectCast(HttpStatusCode.Forbidden, Integer) End If End Sub Which unsuprisingly doesn't work either. Any ideas what we're doing wrong?

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• const read only local copies

  - by robUK

  Hello gcc 4.4.4 c89 I am just wondering is it worth passing a const into a function. i.e. void do_something(const char *dest, const int size) The size is a read-only so I don't want to change it. However, some developers never have this as const has it is a local copy that is being used. The pointer is const as you can change the value in the calling routine. I always have a const on read-only local copies, as it confirms to anyone reading my code that it is a read-only variable. And also, when coding I don't make the mistake of changing it without realizing. Many thanks for any suggestions,

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• PHP Sessions - Locking and Sharing questions

  - by Nuno Peralta

  Hi, I would like to know if it is possible to read $_SESSION attributes without locking it. Currently, session_start() locks SESSION, that means other PHP processes will wait until it is unlocked. But, some processes just want to get some $_SESSION variables, not to write on them. Is that possible to implement some function like session_get(string $id) which doesn't lock SESSION? Also, it is possible to share SESSIONs between browsers, once the user is logged in the same account, for example, using session_id('shared_vars_of_'.$userid). But, is that secure? Is this discouraged? Thanks, Nuno

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• Yahoo account remains open after using openID to login.why?

  - by hd

  hi i have added openid login with Yahoo! and Google in my site. it is ok and works fine. when users select for example Yahoo! to login to my site, they will be logged in in their yahoo mail account too. i think it is not secure because maybe they don't notice to this issue and leave computer while their email account is availble. what do you think about this and what is your solution for your own sites? as i notice the same story is for stackoverflow.com.

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• What is the best way of retrieving a specific post in Wordpress?

  - by Steven

  I need to retrieve a specific post to display on my websites front page. To avoid hard coding the post ID, I've added a custom property where I add the post ID. The following code displays the wanted post: (The code is within the LOOP) // Get content from specific post (in this case, Åpningstider post)) $openingHoursID = get_post_meta($post->ID, "apningstider", true); if (!empty($openingHoursID)) { $openingHoursPost = get_post($openingHoursID); $openingHours = $openingHoursPost->post_content; } else $openingHours = "Åpningstid ikke angitt"; <div class="openinghours"><?php echo $openingHours; ?></div> Is there a better / easier way? The output is striped for HTML. How can I maintain HTML?

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• Microsoft sublanguage string to locale identifier

  - by Jacob

  I can't seem to find a way to convert, or find, a local identifier from a sublanguage string. This site shows the mappings: http://msdn.microsoft.com/en-us/library/dd318693(v=VS.85).aspx I want the user to enter a sublanguage string, such as "France (FR)" and to get the local identifier from this, which in this case would be 0x0484. Or the other way around, if a user enters 0x0480 then to return French (FR). Has anyone encountered this problem before and can point me in the right direction? Otherwise I'm going to be writing a few mapping statements to hard code it and maintain future releases if anything changes. BTW, I'm coding in C++ for Windows platform. Cheers

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• [grails] attaching multiple files to a domain class

  - by Emyr

  I've seen various Grails plugins which allow easier handling of file uploads, however these tend only to support a single file per form-submit. I'd like a multi-attach form where as soon as you pick one file, an extra field and button is added using JS (various sites do it like this). Do you know of any good plugins which provide elegant uploading of multiple files without excessive coding? A progress bar either per-file of for the whole process would also be very nice. I don't know to what extent I can allow GORM to handle a java.io.File field (or in this case a Collection<File>).

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• database design suggesion

  - by Bharanikumar

  Hi , am going to start new travel site, I want some advise from guru's regarding database design , Things coming to picture are, Book taxi online , This is the core idea, So i like to implement lot of jquery,ajax stuff in my site , Main thing site must run veryt fast,safe,security, In mysql , which typw shall i use, MYISAM OR INNODB Which is best type for ajax works, fast,safe ,secure ,performance view . This is my demo site, Just look this site, i implemented some ajax stuff here, my-url In this site please choose the postcode in the taxifrom tab, It ask you value please enter, just enter nw7 , See How long it will take for response,some time no response and system goes to hang or idle mode, Also please look the diversion , select No diversion, There you will list of textbox, enter the nw3 then hit the search icon , See after 80seconds only , you will get response from DB, See this too bad response ... This is DB , my Database type if myisam ,no idexing , no fulltext and nothing...no constraints, So please advise me , which database type i choose, Myisam or innodb, Thanks Bharanikumar

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• Including a NSUserDefault password test in 1st Tab.m to load a loginView gives eror?

  - by Michael Robinson

  I have a name and password in NSUserDefaults for login. I have this in my 1stTab View.m class to test for presence and load a login/signup loginView.xib modally if there is no password or name stored in the app. Here is the pulling of the defaults: -(void)refreshFields { NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; usernameLabel.text = [defaults objectForKey:kUsernameKey]; passwordLabel.text = [defaults objectForKey:kPasswordKey]; { Here is the Test: - (void)viewDidAppear:(BOOL)animated { [self refreshFields]; [super viewDidAppear:animated]; if ([usernameLabel.text length] == 0 || [passwordLabel.text length] == 0) { LoginViewController * vc = [[[LoginViewController alloc] initWithNibName:@"LoginView" bundle:nil] autorelease]; [self presentModalViewController:vc animated: false]; } else { [[self tableView ]reloadData]; } } Thanks in advance, I'm getting this error in the console: * Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key usernameLabel.'

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