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  • JDBC character encoding

    - by wheelie
    Hi there, I have a Java Web application using GlassFish 3, JSF2.0 (facelets) and JPA (EclipseLink) on MySQL (URL: jdbc:mysql://localhost:3306/administer). The problem I'm facing is that if I'm saving entities to the database with the update() method, String data loses integrity; '?' is shown instead of some characters. The server, pages and database is/are configured to use UTF-8. After I post form data, the next page shows the data correctly. Furthermore it "seems" in debug that the String property of the current entity stores the correct value too. Dunno if NetBeans debug can be trusted; might be that it decodes correctly, however it's incorrect. Any help would be appreciated, thanks in advance! Daniel

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  • Is there a floating point value of x, for which x-x == 0 is false?

    - by Andrew Walker
    In most cases, I understand that a floating point comparison test should be implemented using over a range of values (abs(x-y) < epsilon), but does self subtraction imply that the result will be zero? // can the assertion be triggered? float x = //?; assert( x-x == 0 ) My guess is that nan/inf might be special cases, but I'm more interested in what happens for simple values.

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  • Add Core Data Index to certain Attributes via migration

    - by steipete
    For performance reasons, i want to set the Indexed Attribute to some of my entities. I created a new core data model version to perform the changes. Core Data detects the changes and migrates my model to the new version, however, NO INDEXES ARE GENERATED. If I recreate the database from scratch, the indexes are there. I checked with SQLite Browser both on the iPhone and on the Simulator. The problem only occurs if a database in the prior format is already there. Is there a way to manually add the indexes? Write some sql for that? Or am I missing something? I did already some more critical migrations, no problems there. But those missing indexes are bugging me. Thanks for helping!

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  • JPA character encoding

    - by wheelie
    Hi there, I have a Java Web application using GlassFish 3, JSF2.0 (facelets) and JPA (EclipseLink) on MySQL (URL: jdbc:mysql://localhost:3306/administer). The problem I'm facing is that if I'm saving entities to the database with the update() method, String data loses integrity; '?' is shown instead of some characters. The server, pages and database is/are configured to use UTF-8. After I post form data, the next page shows the data correctly. Furthermore it "seems" in debug that the String property of the current entity stores the correct value too. Dunno if NetBeans debug can be trusted; might be that it decodes correctly, however it's incorrect. Any help would be appreciated, thanks in advance! Daniel

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  • How to use NSURLDownload

    - by marshluca
    - (IBAction)startDownloadingURL:(id)sender { // create the request NSURLRequest *theRequest=[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.apple.com/index.html"] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; // create the connection with the request // and start loading the data NSURLDownload *theDownload=[[NSURLDownload alloc] initWithRequest:theRequest delegate:self]; if (!theDownload) { // inform the user that the download could not be made } } when i run the simulator , i got an error: NSURLDownload undeclared ,first use in this fuction. where can i import the library of NSURLDownload.

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  • Detecting Touches in an OpenGL rendered scene

    - by Icky
    Hey. I was wondering whether there is a way to detect a touch in an OpenGL rendered scene. What I have i a set of images which are being rendered in my main view. Now if the user touches one of these images (or objects) I would like to know which one was touched - similar to the CGRectContainsPoint(frame, [touch locationInView:self.view] method. Is there an easy way to find out? If there is none, this would also help.

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  • How do I write this as an expression?

    - by itchi
    I'm trying to rewrite a linq to entities query to an expression. My model is a School can have many Persons where Persons are inherited out to teachers, students, etc. The following query works for me: IQueryable<DAL.TEACHER> teacher = from p in School select p.PERSON as ESBDAL.TEACHER; How would I write this as a query expression? I thought something like: IQueryable<DAL.TEACHER> teacher = School.Select(x=>x.PERSON) as IQueryable<DAL.TEACHER>; ...but it does not. Am I misunderstanding the .Select()?

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  • tabBarController popToRooTViewControler

    - by Jacob
    Every time a user changes a tab, for the selected tab I want to push it to its top level controller. I have implemented the delegate method for the Tabbarcontroller like this: - (void) tabBarControler:(UITabBarController )tabBarController didSelectViewController:(UIViewController)viewController{ [[self navigationController] popToRootViewController Animated:NO]; } This does nto seem to work but I can confirm the method is being called every time I change tabs

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  • Setting UITableViewCell button image values during scrolling

    - by Rob
    I am having an issue where I am trying to save whether a repeat image will show selected or not (it is created as a UIButton on a UITableViewCell created in IB). The issue is that since the cell gets re-used randomly, the image gets reset or set somewhere else after you start scrolling. I've looked all over and the advice was to setup an NSMutableArray to store the button's selection state and I am doing that in an array called checkRepeatState My question is: where do I put the if-then-else statement in the code to where it will actually change the button image based on if the checkRepeatState is set to 0 or 1 for the given cell that is coming back into view? Right now, the if-then-else statement I am using has absolutely no effect on the button image when it comes into view. I'm very confused at this point. Thank you ahead of time for any insight you can give!!! My code is as follows: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { // set up the cell static NSString *CellIdentifier = @"PlayerCell"; PlayerCell *cell = (PlayerCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (!cell) { [[NSBundle mainBundle] loadNibNamed:@"PlayerNibCells" owner:self options:nil]; cell = tmpCell; self.tmpCell = nil; NSLog(@"Creating a new cell"); } // Display dark and light background in alternate rows -- see tableView:willDisplayCell:forRowAtIndexPath:. cell.useDarkBackground = (indexPath.row % 2 == 0); // Configure the data for the cell. NSDictionary *dataItem = [soundCategories objectAtIndex:indexPath.row]; UILabel *label; label = (UILabel *)[cell viewWithTag:1]; label.text = [dataItem objectForKey:@"AnimalName"]; label = (UILabel *)[cell viewWithTag:2]; label.text = [dataItem objectForKey:@"Description"]; UIImageView *img; img = (UIImageView *)[cell viewWithTag:3]; img.image = [UIImage imageNamed:[dataItem objectForKey:@"Icon"]]; NSInteger row = indexPath.row; NSNumber *checkValue = [checkRepeatState objectAtIndex:row]; NSLog(@"checkValue is %d", [checkValue intValue]); // Reusing cell; make sure it has correct image based on checkRepeatState value UIButton *repeatbutton = (UIButton *)[cell viewWithTag:4]; if ([checkValue intValue] == 1) { NSLog(@"repeatbutton is selected"); [repeatbutton setImage:[UIImage imageNamed:@"repeatselected.png"] forState:UIControlStateSelected]; [repeatbutton setNeedsDisplay]; } else { NSLog(@"repeatbutton is NOT selected"); [repeatbutton setImage:[UIImage imageNamed:@"repeat.png"] forState:UIControlStateNormal]; [repeatbutton setNeedsDisplay]; } cell.accessoryType = UITableViewCellAccessoryNone; return cell; }

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  • c# Generic List

    - by user177883
    I m populating data for different entities into set of lists using generic lists as follows : List<Foo> foos .. List<Bar> bars .. I need to write these lists to a file, i do have a util method to get the values of properties etc. using reflection. What i want to do is: using a single method to write these into files such as: void writeToFile(a generic list) { //Which i will write to file here. } How can i do this? I want to be able to call : writeToFile(bars); writeToFile(foos);

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  • WordPress: Display Online Users' Avatars

    - by Wade D Ouellet
    Hi, I'm using version 2.7.0 of this WordPress plugin to display which users are currently online (the latest version doesn't work): http://wordpress.org/extend/plugins/wp-useronline/ It's working great but I would love to be able to alter it quickly to display the users' avatars instead of their names. Hoping someone with pretty good knowledge of WordPress queries and functions can help. The part below seems to be the part that handles all this. If this isn't enough, here is the link to download the version I am using with the full php files: http://downloads.wordpress.org/plugin/wp-useronline.2.70.zip // If No Bot Is Found, Then We Check Members And Guests if ( !$bot_found ) { if ( $current_user->ID ) { // Check For Member $user_id = $current_user->ID; $user_name = $current_user->display_name; $user_type = 'member'; $where = $wpdb->prepare("WHERE user_id = %d", $user_id); } elseif ( !empty($_COOKIE['comment_author_'.COOKIEHASH]) ) { // Check For Comment Author (Guest) $user_id = 0; $user_name = trim(strip_tags($_COOKIE['comment_author_'.COOKIEHASH])); $user_type = 'guest'; } else { // Check For Guest $user_id = 0; $user_name = __('Guest', 'wp-useronline'); $user_type = 'guest'; } } // Check For Page Title if ( is_admin() && function_exists('get_admin_page_title') ) { $page_title = ' &raquo; ' . __('Admin', 'wp-useronline') . ' &raquo; ' . get_admin_page_title(); } else { $page_title = wp_title('&raquo;', false); if ( empty($page_title) ) $page_title = ' &raquo; ' . strip_tags($_SERVER['REQUEST_URI']); elseif ( is_singular() ) $page_title = ' &raquo; ' . __('Archive', 'wp-useronline') . ' ' . $page_title; } $page_title = get_bloginfo('name') . $page_title; // Delete Users $delete_users = $wpdb->query($wpdb->prepare(" DELETE FROM $wpdb->useronline $where OR timestamp < CURRENT_TIMESTAMP - %d ", self::$options->timeout)); // Insert Users $data = compact('user_type', 'user_id', 'user_name', 'user_ip', 'user_agent', 'page_title', 'page_url', 'referral'); $data = stripslashes_deep($data); $insert_user = $wpdb->insert($wpdb->useronline, $data); // Count Users Online self::$useronline = intval($wpdb->get_var("SELECT COUNT(*) FROM $wpdb->useronline"));

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  • where should we place HIDDEN variable in JSP

    - by micheal
    I need to use Hidden variables in my JSP for session tracking. this is the code: <input type="hidden" name="REQ_TOKEN" value="<%=session.getAttribute("SESN_TOKEN").toString()%>" /> i am using this to compare the request token with session token, so only when both are equal i will evaluate that request otherwise i will throw an error. Now the problem is, when i place this code inside <form></form> tags, it is working fine. Unfortunately there are some JSPs in my application where we dont have tag(I know that sounds weird!). where can i place my code so that it will work? Cant i use Hidden variables without FORM tag???

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  • Change position of navigationItem.title

    - by ludo
    Hi, In my ViewDidLoad I use : self.navigation.title = @"test"; It will display my title in the middle of my UINavigationController, how can I change the position and put this title on the left. Or maybe create a label and put it on the left? Thanks,

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  • How to halt only if shift is pressed?

    - by Joe
    Hi, in Pharo I'd like Object>>halt to halt only if shift is pressed, so that I don't break down my image. How do I do that? So, for example, I'd like to be able to add a self halt. into Array>>add:, without losing my image.

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  • Cannot Debug Unmanaged Dll from C#

    - by JustSmith
    I have a DLL that was written in C++ and called from a C# application. The DLL is unmanaged code. If I copy the DLL and its .pdb files with a post build event to the C# app's debug execution dir I still can't hit any break points I put into the DLL code. The break point has a message attached to it saying that "no symbols have been loaded for this document". What else do I have to do to get the debugging in the dll source? I have "Tools-Options-Debugging-General-Enable only my code" Disabled. The DLL is being compiled with "Runtime tracking and disable optimizations (/ASSEMBLYDEBUG)" and Generate Debug Info to "Yes (/DEBUG)"

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  • many-to-many, poco, ef4

    - by Lari13
    I have 3 entities: Goods [GID(PK), GoodName] Persons [PID(PK), PersonName] Roles [RID(PK), RoleName] But now I need to associate these object with each other. In other words, each Good can have MANY Persons in MANY Roles. For example: Book (GID#1), can have 3 associated persons: 1. Jack (PID#1) in role Author (RID#1) 2. Jack (PID#1) in role Editor (RID#2) 3. Bill (PID#2) in role Painter (RID#3) How can it be done in POCO format in Entity Framework 4?

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  • Routing Business Branches: Granular access control in ASP.NET MVC

    - by FreshCode
    How should ASP.NET MVC routes be structured to allow granular role-based access control to business branches? Every business entity is related to a branch, either by itself or via its parent entities. Is there an elegant way to authorize actions based on user-roles for any number of branches? 1. {branch} in route? {branch}/{controller}/{action}/{id} Action: [Authorize(Roles="Technician")] public ActionResult BusinessWidgetAction(BusinessObject obj) { // Authorize will test if User has Technician role in branch context // ... } 2. Retrieve branch from business entity? {controller}/{action}/{id} Action: public ActionResult BusinessWidgetAction(BusinessObject obj) { if (!User.HasAccessTo("WidgetAction", obj.Branch)) throw new HttpException(403, "No soup for you!"); // or redirect // ... } 3. Or is there a better way?

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  • Recover history from foolish git-svn merge

    - by Gregg Lind
    the players: master: the svn branch (actual, not local trackign) mybranch: a local branch My mistake: [master] git svn rebase [master] git merge mybranch [master] git svn dcommit I did this twice. Is there a way I can remedy all this? I was thinking something like: git checkout --hard [commit before the merging] git dcommit # that to the svn? git rebase mybranch git dcommit But this doesn't seem to work. (I know I should a. working from a local tracking branch and b. have rebased rather than merged) I'm in the frantic / willing to send beer to respondents stage :)

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  • Objective-c memory management

    - by Chris
    I have a method which runs this: Track* track = [[Track alloc] init:[obj objectForKey:@"PersistentID"] :[obj objectForKey:@"Name"] :[obj objectForKey:@"Artist"] :(NSInteger*)[obj objectForKey:@"Total Time"] :(NSInteger*)[obj objectForKey:@"Play Count"]]; [self setCurrentTrack:(Track*) track]; [track release]; Do I have to release track?

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  • Entity Framework - avoiding another query

    - by adamjellyit
    I have a requirement to only save data to a table in a database (I don't need to read it) If the record already exists I want to update it otherwise I will add it. It usually exists. My entity context might already hold the object .. if it does I want to find it and use it again without causing it to refresh from the database when I 'find' it i.e. The context holds a collection of entities (rows of a database) I want to find an entity in the collection and only want the context to go to the database if entity is not in the collection. I don't care about the current values of the entity .. I just want to update them. Hope this is clear ..... thanks

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  • Entity Framework vs LINQ to SQL

    - by Chris Roberts
    Now that .NET v3.5 SP1 has been released (along with VS2008 SP1), we now have access to the .NET entity framework. My question is this. When trying to decide between using the Entity Framework and LINQ to SQL as an ORM, what's the difference? The way I understand it, the Entity Framework (when used with LINQ to Entities) is a 'big brother' to LINQ to SQL? If this is the case - what advantages does it have? What can it do that LINQ to SQL can't do on its own?

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  • How do I convert RGB into HSV in Cocoa Touch?

    - by Evelyn
    I want to set the background color of a label using HSV instead of RGB. How do I implement this into code? Code: //.m file #import "IBAppDelegate.h" @implementation IBAppDelegate @synthesize label; { self.label.backgroundColor = [UIColor colorWithRed:1.0f green:0.8f blue:0.0f alpha:1.0f]; }

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