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Articles indexed Saturday April 24 2010

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  • how to simplify this database update query (php)

    - by krike
    How could I simplify this update instruction? Whenever a client buys an item it will update the sales with 1. $this->db->query('SELECT amount FROM shop_items WHERE itemid='.$itemid.''); $new_amount = $item->amount+1; if(!$this->db->query('UPDATE shop_items SET amount='.$new_amount.' WHERE itemid='.$itemid.'')): return false; endif; Can't I make it more simple so there are less lines, for example: if(!$this->db->query('UPDATE shop_items SET amount=_current_value_+1 WHERE itemid='.$itemid.'')): return false; endif; is this possible? if not thanks anyway

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  • A question related to UIButton

    - by vikas Savardekar
    I have taken customview in my code for UIButton. UIButton *button= [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain]; //(UIButton *)newCell.accessoryView; [button addTarget:self action:@selector(checkedimage:) forControlEvents:UIControlEventTouchUpInside]; -(IBAction)checkedimage:(id)sender { NSLog(@"checkedimage"); if(checkImage == NO) { newImage = [UIImage imageNamed:@"a.png"]; checkImage=YES; } else if(checkImage==YES) { newImage = [UIImage imageNamed:@"b.png"]; checkImage=NO; } } but when i click on UIButton it is not going to action checkedimage why?

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  • can't install libgnokii

    - by petite
    Iam trying to install gnocky on fedora and as I was installing it, I got message about dependencies. I need to install libgnokii.so.2 and libbluetooth. I tried searching for these files in the net but was not able to find one. Can someone please really help me install gnocky on my fedora 12? Please... Thanks!

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  • New laptop, windows 7, Outlook 2007 installed

    - by Bob
    A friend of mine has purchased a new laptop (Toshiba) with Windows 7 installed and has also purchased Outlook 2007 and atttmped to install it - the install worked ok, but I think he may have selected Exchange server when installing the first time - now it will not start, displaying message like "Your Microsoft Exchange Server is unavailable " Outlook 2007 should have been configued for Pop3 as he has a hotmail account, but Outlook will not load "offline" and despite me de-installing, re-installing, running repair, I cannot get it to load to a point where I can add a new email account. If any one has any ideas on this, I would apprecaite the help Thanks, Bob

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  • Is there any way to get a windows application to always start on "Monitor n"?

    - by Nifle
    The specific app I'm having a problem with is Firefox but I'd like a generic solution. I have 2 monitors the larger is my main monitor. I would like to be able to tell windows that every time I start app 'X' I want it too start in my main monitor and ideally have it start app 'Y' in my secondary monitor. And I want it to do this regardless of witch monitor the app was when it was last used. Does anyone know of a tool or windows-tweak to make this possible?

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  • Any examples of a complex, changeable system modelled with a spreadsheet?

    - by andygrunt
    When I asked this question using games as the example (hoping it would be more likely to have been done), it was closed as being off topic so let me ask it this way... Has anyone used a spreadsheet to model a complex, changeable system (something like crowd behaviour, weather systems, a closed ecology, evolution or whatever) and if so, can you point me at it? I'm hoping for a normal (albeit complex) spreadsheet using the spready's inbuilt formulae and functions rather than something specially coded. I'm also after something where it's possible to change the variables and see the changed outcome - perhaps the variables change using random numbers or the like.

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  • Handling wm_mousewheel message in WTL

    - by Rushi
    I am trying to handle wm_mousewheel for my application. Code: BEGIN_MSG_MAP(DxWindow) MESSAGE_HANDLER(WM_MOUSEWHEEL, KeyHandler) END_MSG_MAP() . . . LRESULT DxWindow::KeyHandler( UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled ) { if(uMsg==wm_mousewheel) { //Perform task. } return 0; } But this code doesn't work.KeyHandler doesn't receive wm_mousewheel message. I am testing this application on vista. If my approach is wrong how to handle wm_mousewheel properly? Do vista is responsible for failure in handling wm_mousewheel message?

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  • Eclipse Plugin: Enablement of an Action based on the current selection - before the

    - by Itay
    Here's my problem: I am using the org.eclipse.ui.popupMenus extension point for adding a sub-menu whose Action that is bounded to the following class: public class MyAction implements IObjectActionDelegate { private Logic logic = Logic.getInstance(); // Singleton public void setActivePart(IAction a, IWorkbenchPart targetPart) { // Nothing here } public void run(IAction a) { // Do something... } public void selectionChanged(IAction a, ISelection s) { a.setEnabled(logic.isEnabled(s)); } } This action is working correctly in most cases (including the call a.setEnabled() in selectionChanged()). My problem at the very first time my action is being invoked. The selectionChanged method is called only after the menu item has been displayed (and not when the user has made the selection) which means that the call to a.setEnabled() will have no affect. Any ideas on how to make my action receive selectionChanged() notifications even before the fist time it is being invoked?

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  • Moving inserted container element if possible

    - by doublep
    I'm trying to achieve the following optimization in my container library: when inserting an lvalue-referenced element, copy it to internal storage; but when inserting rvalue-referenced element, move it if supported. The optimization is supposed to be useful e.g. if contained element type is something like std::vector, where moving if possible would give substantial speedup. However, so far I was unable to devise any working scheme for this. My container is quite complicated, so I can't just duplicate insert() code several times: it is large. I want to keep all "real" code in some inner helper, say do_insert() (may be templated) and various insert()-like functions would just call that with different arguments. My best bet code for this (a prototype, of course, without doing anything real): #include <iostream> #include <utility> struct element { element () { }; element (element&&) { std::cerr << "moving\n"; } }; struct container { void insert (const element& value) { do_insert (value); } void insert (element&& value) { do_insert (std::move (value)); } private: template <typename Arg> void do_insert (Arg arg) { element x (arg); } }; int main () { { // Shouldn't move. container c; element x; c.insert (x); } { // Should move. container c; c.insert (element ()); } } However, this doesn't work at least with GCC 4.4 and 4.5: it never prints "moving" on stderr. Or is what I want impossible to achieve and that's why emplace()-like functions exist in the first place?

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  • CREATE VIEW called multiple times not creating all views

    - by theninepoundhammer
    Noticing strange behavior in SQL 2005, both Express and Enterprise Edition: In my code I need to loop through a series of values (about five in a row), and for each value, I need to insert the value into a table and dynamically create a new view using that value as part of the where clause and the name of the view. The code runs pretty quickly, but what I'm noticing is that all the values are inserted into the table correctly but only the LAST view is being created. Every time. For example, if the values I'm using are X1, X2, X3, X4, and X5, I'll run the process, open up Mgmt Studio, and see five rows in the table with the correct five values, but only one view named MyView_x5 that has the correct WHERE clause. At first, I had this loop in an SSIS package as part of a larger data flow. When I started noticing this behavior, I created a stored proc that would create the CREATE VIEW statement dynamically after the insert and called EXECUTE to create the view. Same result. Finally, I created some C# code using the Enterprise Library DAAB, and did the insert and CREATE VIEW statements from my DLL. Same result every time. Most recently, I turned on Profiler while running against the Enterprise Edition and was able to verify that the Batch Started and Batch Completed events were being fired off for each instance of the view. However, like I said, only the last view is actually being created. Does anyone have any idea why this might be happening? Or any suggestions about what else to check or profile? I've profiled for error messages, exceptions, etc. but don't see any in my trace file. My express edition is 9.00.1399.06. Not sure about the Enterprise edition but think it is SP2.

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  • Java Algorithm HmacSHA256 not available

    - by user324929
    Hi, I am trying an encryption-decryption code in java. When I am trying to run it with JDK and code in class with main method it is running fine. But when I am trying to run same code in Tomcat, tomcat is throwing exception: java.security.NoSuchAlgorithmException: Algorithm HmacSHA256 not available. Can anybody guide me to proper direction please? Thank you.

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  • Java REST implementation: Jersey vs CXF

    - by dexter
    What do you think is the advantages/disadvantages between this two libraries? Which of these two are best suited for production environment? By the way I will be using JSON instead of XML. I also would like to know what library is most supported by the community e.g. tutorials, documentation.

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  • How do I back up a remote SVN repository

    - by Roaders
    Hi all I am currently moving my SVN server from my home server to my remote server so I can access it more easily from other locations. My remote server is not backed up so I want to regularly back it up to my home server. Remote server is Windows 2003 server. Home server is Windows Home Server. What is the best way to do this? can I get my home server to get a dump of the remote server every night? Bandwidth isn't a huge consideration but if I could just copy any new checkins to an SVN server on my home server that would be fine. Any suggestions welcome. Thanks

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  • Visual Studio File Groupings

    - by Daniel
    In Visual Studio 3 files are typically grouped together: filename.aspx filename.aspx.cs filename.aspx.designer.cs Is there a way to add another file that grouping so that it can be collapsed and out of view? filename.aspx filename.aspx.cs filename.aspx.designer.cs customfile.cs Thanks

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  • Postfix sending mail back to itself? (Ubuntu 9.10)

    - by webo
    I setup Dovecot and Postfix using the "Dovecot-Postfix" package with SASL and all that. The Dovecot part seems to be working fine but I'm having issues with Postfix. Whenever I send a message to another address through the postfix server, two things happen. the message never gets to the other address (even when I request a delivery notification, it says that it's been delivered but it's not in the spam box in the other inbox or anything) The message comes back to my inbox through Dovecot as though I sent it to myself internally. e.g. I send an email through my postfix server to my gmail account, 10 minutes later nothing shows up in my gmail account but the message comes back to me as though I was sending it to my internal address (with no errors) Any ideas?

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  • Folder cleanup with PowerShell

    - by 280Z28
    I'd like to clean up some directories after my script runs by deleting certain folders and files from the current directory if they exist. Originally, I structured the script like this: if (Test-Path Folder1) { Remove-Item -r Folder1 } if (Test-Path Folder2) { Remove-Item -r Folder2 } if (Test-Path File1) { Remove-Item File1 } Now that I have quite a few items listed in this section, I'd like to clean it up. How can I do so? Side note: The items are cleaned up before the script runs, since they are left over from the previous run in case I need to examine them.

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