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  • Why would SQL be very slow when doing updates?

    - by ooo
    Suddenly doing updates into a few tables have gotten 10 times slower than they used to be. What are some good recommendations to determine root cause and optimization? Could it be that indexing certain columns are causing updates to be slow? Any other recommendations? I guess more important than guesses would be help on the process of identifying the root cause or metrics around performance. Is there anything in Fluent NHibernate that you can use to help identify the root cause of performance issues?

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  • jQuery Animation and Classes

    - by ehdv
    Assume you have a list item, <li id="foo"> which you want to fade from one color to another when moused over, and that you are using jQuery. This is fairly easy: $('li#foo').bind('mouseenter' , function(e) { $(this).animate({backgroundColor: '#F00'} , 300); }); However, what if you wanted to get the resulting color or other style rules from a class defined in CSS without also declaring them in JavaScript? It seems there's no way to learn style information from CSS rules without having an example of the rule already in the document, which would require you to animate the <li> to the target appearance, then in the animation-finished callback, set the class which leads to redundant style declarations and can foul up your CSS at "runtime". Sorry if this question's unclear: It doesn't occur in the context of any specific project, I'm just curious how you'd go about this. Also, I know CSS3 hypothetically includes support for such transitions but using CSS for dynamic behavior like this seems such an ugly hack.

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  • Double right click to Show a PopUpMenu with A TListView !!

    - by djiga4me
    Hi, I have a TListView and TPopupMenu, and I want to show a context menu when I right click on a TListItem. I tried the "AutoPopup" by assigning the component, but on a right click the PopupMenu is shown only and the wanted element is not selected. So i tried to use the "OnMouseDown", but we need to click and click again to show the menu on the wanted item. The first click is to select the item and the second shows the menu. But I want just a one click to do the two things. Do you have and idea about the problem? Thank you.

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  • Calling SharedPrefences on AppWidget

    - by Rexx
    Hello all, I would like to know if there is an issue with calling a sharedPeference value on an appWidget provider class so i can use it for an update. I have this code which i call on a method in the appWidget provider class, but it keeps giving me compilation error and that i should create a method for it. this is the code: prefs = getSharedPreference("myPrefs", Context.MODE_PRIVATE); is this a known issue and is there any other way i can pass the value from my configuration class, if this is not possible. Thank you

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  • Which MySQL Datatype to use for storing boolean values from/to PHP?

    - by Beat
    Since MySQL doesn't seem to have any 'boolean' datatype, which datatype do you 'abuse' for storing true/false information in MySQL? Especially in the context of writing and reading from/to a PHP-Script. Over time I have used and seen several approaches: tinyint, varchar fields containing the values 0/1, varchar fields containing the strings '0'/'1' or 'true'/'false' and finally enum Fields containing the two options 'true'/'false'. None of the above seems optimal, I tend to prefer the tinyint 0/1 variant, since automatic type conversion in PHP gives me boolean values rather simply. So which datatype do you use, is there a type designed for boolean values which I have overlooked? Do you see any advantages/disadvantages by using one type or another?

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  • javascript / jQuery variable problem (possibly caching issue)

    - by waitinforatrain
    Standard AJAX query with jQuery: var globalTitle = ""; var pages = ["a", "b", "c"]; for (var i = 0; i < pages.length; i++) { createpage(pages[i]); } function createpage(title) { globalTitle=title; console.log (globalTitle); //All looks good here $.ajax({ url: "createpage.php?id=" + title, context: document.body, success: success }); } The success() function uses globaltitle which is why I had to declare it global. In the success() function though console.log (globalTitle); constantly gives me "a". It's like the variable is assigned but is then cached every time success() is called. Happens in FF 4 and Chrome 8. Any thoughts?

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  • Ember - ConnectOutlet - when does view change from preRender to inDom

    - by dagda1
    I am trying to get my head round the connectOutlet method and when a view that is returned from connectOutet is actually inserted into the DOM. The view that is created in connectOutlet leaves connectOutlet in the preRender state. connectOutlet: function(name, context) { // method body view = this.createOutletView(outletName, viewClass); if (controller) { set(view, 'controller', controller); } set(this, outletName, view); return view; } I've not tracked down where or when the view is inserted into the Dom and the view transitions to the inDom state. I suspect the runloop is at play and it transitions after the current runloop has finished. Can anyone shed any light on this?

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  • lua function as argument in C

    - by Nil
    I'm going to pass a function to another function which should operate with the passed function. For example: handler(fun1("foo",2)) handler(fun2(1e-10)) The handler is something like calling the passed function many times. I'm going to bind handler, fun1, fun2 to C-functions. fun1 and fun2 are going to return some user data with a pointer to some cpp-class so that I can further recover which function was it. The problem now is that fun1 and fun2 are going to be called before passed to handler. But I don't need this, what I need is the kind of function and its parameters. However, I should be able to call fun1 and fun2 alone without handler: fun1("bar",3) fun2(1e-5) Is it possible to get the context the function is called from? While typing the question, I realized I could do following handler(fun1, "foo",2); handler(fun2, 1e-10);

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  • Continue Drupal processing after page send.

    - by David
    I need to do some additional processing after a Drupal page has been sent. I know I could fire a background shell command, but I need the current Drupal execution context to be maintained. I've spent a lot of time looking, but I can't find any documentation in this regard. This is surprising because it must surely be a common requirement. The only real idea I have is to fire up Drupal (again) via a shell command (exec, etc) and supply it with a pseudo path which would invoke the continued processing. But this seems unnecessarily complex/wasteful. Any pointers greatly appreciated, tks.

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  • Does beginTransaction in Hibernate allocate a new DB connection?

    - by illscience
    Hi folks - Just wondering if beginning a new transaction in Hibernate actually allocates a connection to the DB? I'm concerned b/c our server begins a new transaction for each request received, even if that request doesn't interact with the DB. We're seeing DB connections as a major bottleneck, so I'm wondering if I should take the time narrow the scope of my transactions. Searched everywhere and haven't been able to find a good answer. The very simple code is here: SessionFactory sessionFactory = (SessionFactory) Context.getContext().getBean("sessionFactory"); sessionFactory.getCurrentSession().beginTransaction(); sessionFactory.getCurrentSession().setFlushMode(FlushMode.AUTO); thanks very much! a

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  • How to find the real problem line in my code with Application Verifier ?

    - by Newbie
    I am now trying to use this Application Verifier debugging tool, but i am stuck, first of all: it breaks the program at a line that is simple variable set line (s = 1; for example) Secondly, now when i run this program under debugger, my program seems to have changed its behaviour: i am drawing image, and now one of the colors has changed o_O, all those parts of the image that i dont draw on, has changed the color to #CDCDCD when it should be #000000, and i already set the default color to zero, still it becomes to #CDCDCD. How do i make any sense to this? Here is the output AV gave me: VERIFIER STOP 00000002: pid 0x8C0: Access violation exception. 14873000 : Invalid address causing the exception 004E422C : Code address executing the invalid access 0012EB08 : Exception record 0012EB24 : Context record AVRF: Noncontinuable verifier stop 00000002 encountered. Terminating process ... The program '[2240] test.exe: Native' has exited with code -1073741823 (0xc0000001).

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  • In Perl, is there a built in way to compare two arrays for equality?

    - by Bill
    I have two arrays of strings that I would like to compare for equality: my @array1 = ("part1", "part2", "part3", "part4"); my @array2 = ("part1", "PART2", "part3", "part4"); Is there a built-in way to compare arrays like there is for scalars? I tried: if (@array1 == @array2) {...} but it just evaluated each array in scalar context, and so compared the length of each array. I can roll my own function to do it, but it seems like such a low-level operation that there should be a built-in way to do it. Is there? Edit: sadly, I don't have access to 5.10+ or optional components.

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  • Comparing an array of users to an array of structs with user object as attribute, and returning matc

    - by keruilin
    I have an array of users who are friends. Let us call this array: friends I then have an array of structs. Each struct has a user object as an attribute (it also has a rank attribute). Here's what the struct class looks like, to add some context: class Leader < Struct.new(:rank, :user); end Let us call this array of structs: all_leaders_plus_rank I want to compare friends and all_leaders_plus_rank, and add the match from all_leaders_plus_rank to a new array of structs called friendly_leaders.

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  • Serialization of a TChan String

    - by J Fritsch
    I have declared the following type KEY = (IPv4, Integer) type TPSQ = TVar (PSQ.PSQ KEY POSIXTime) type TMap = TVar (Map.Map KEY [String]) data Qcfg = Qcfg { qthresh :: Int, tdelay :: Rational, cwpsq :: TPSQ, cwmap :: TMap, cw chan :: TChan String } deriving (Show) and would like this to be serializable in a sense that Qcfg can either be written to disk or be sent over the network. When I compile this I get the error No instances for (Show TMap, Show TPSQ, Show (TChan String)) arising from the 'deriving' clause of a data type declaration Possible fix: add instance declarations for (Show TMap, Show TPSQ, Show (TChan String)) or use a standalone 'deriving instance' declaration, so you can specify the instance context yourself When deriving the instance for (Show Qcfg) I am now not quite sure whether there is a chance at all to serialize my TChan although all individual nodes in it are members of the show class. For TMap and TPSQ I wonder whether there are ways to show the values in the TVar directly (because it does not get changed, so there should no need to lock it) without having to declare an instance that does a readTVar ?

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  • Windows Batch script - For /L not working -- simple

    - by XoronioX
    need some quick help. This is a university program, everything is working fine except when I call my :forLoop method to iterate through 100 numbers (1,1,100) starting at 1 going by 1 til 100 and doing the iteration % 5 (i%%5). for some reason I cannot get this to work. appreciate any help or direction. When I echo %%A it is iterating through all the number perfect. When I echo %result% I get a blank "" (nothing inside) :forLoop FOR /L %%A IN (1,1,100) DO ( set /A result=%%A %% 2 echo "%%A" echo "%result%" ) Correct code is :forLoop setlocal ENABLEDELAYEDEXPANSION FOR /L %%A IN (1,1,100) DO ( set /A result=%%A %% 5 echo !result! >> results.txt set /A total=!total!+!result! echo !total! )

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  • Several ways to call a windows batch file from another one or from prompt. Which one in which case?

    - by dim
    A windows batch file (called.bat or called.cmd) can be called from another batch file (caller.bat or caller.cmd) or interactive cmd.exe prompt in several ways: direct call: called.bat using call command: call called.bat using cmd command: cmd /c called.bat using start command: start called.bat I'm quite in trouble to differentiate their intended usage based on their help text: when to use which one? e.g. why I might use 'call' command instead of direct call. What's different? I'm interested on some summary report that analyze all 4 possibilities (and others if any missing) from various point of views: recommended use cases for which they are designed to fit, process spawning, execution context, environment, return code processing. Note: I'm using Windows XP SP3.

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  • Ubuntu 10.10, taskbar

    - by Alex
    I launched system monitor to kill one program, which didn't responded on any mouse clicks, etc. But i occasionally killed another process. so, taskbar was killed. (it was in the bottom of the screen, in the top all is good) reboot didnt help o_O. Now I use Alt-Tab and alt-controll-arrows to switch between programs and desktops (it works). How to launch taskbar again? its very strange that reboot didnt help me.

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  • Where does the 'method' implementation go? (I'm a newbie)

    - by Spokane-Dude
    I have this code: #import "SQLiteDB.h" @implementation SQLiteDB @synthesize db, dbPath, databaseKey; @end //-------------- check for database or create it ----------------| - (void)checkForDatabase { NSFileManager *filemanager = [NSFileManager defaultManager]; NSString *databasePath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingString:@"/ppcipher.s3db"]; if(![filemanager fileExistsAtPath:databasePath]) { //Database doesn't exist yet, so we create it... NSString *defaultDBPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingString:@"/ppcipher.s3db"]; sqlite3 *db; if(sqlite3_open(databasePath, db) == SQLITE_OK) { } } } It's complaining that "method definition not in @implementation context". So where does it go? (I tried in the .h file, but still get the error)

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  • Selecting radiobuttons populated within asp.net RadioButtonList with jQuery

    - by user194881
    Hello and thanks in advance for the communal help I always find here. I have been tinkering around with what should seem a pretty straight forward task even for a jQuery newb as myself. I have a radiobuttonlist control bound to a collection: <asp:RadioButtonList ID="radBtnLstPackageSelector" runat="server" CssClass="PackageS"> </asp:RadioButtonList> My form does have several other controls of the same type; Now, the challenge is to select and wire up a on Click event for every radiobutton from the radBtnLstPackageSelector. I have tried several approaches such as: var results1 = $(".PackageS").children("input"); var results1 = $(".PackageS").children("input[type=radiobutton"); var results1 = $("table.PackageS > input[type=radiobutton"); with no luck... Your help would be great right now! ~m

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  • JavaScript question related to the use of ' and "

    - by vatismarty
    my_window.document.write(' <script type="text/javascript"> function redirect(linkid) { opener.location.href=linkid; window.close(); } </script> <h1>Hello</h1> <p>Thank you.If you accidentally closed our website click <a href="javascript:redirect('http://google.com')">here</font></a> to go back to our website</p> '); This is my piece of code to close a already opened pop up window by redirecting it to google.com. I think there is some problem with matching the apostrophes ' and "... how to code with (' (" (' ') ") ')... is this correct? please help me with this. Please help me with the necessary changes wherever required.

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  • How to add Image On 'more' Button of UITabBarController in iOS 6?

    - by iPatel
    I know That How to add UITabBarController and how it used, I already done it. My Problem is only that I am no able to add image on 'more' button of UITabBarController. I know There are may Question That Similar to my Question but no one can help me. After googling I found that we can't add images on 'More' button in UITabBarController Because more button is autometically displayed by UITabBarController when UITabBarItem more Then 5. I also find that how to change SELECTION COLOR AND TITLE OF 'more' Button But I can not find abut 'more' button Image. So may be i need to Custom UITabBarController so, I also searching for any Custom UITabBarController but also I can not find it. Please help me on this Issue.

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