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  • Saving a grails object with a composite id

    - by Jared
    The answer to this may be obvious but how do you save an object, in grails, that has a composite id. I have an object that has a composite id including a long and a date and I am trying to save an instance of the object from the update method of another classes controller, and using (object).save() isn't working. Any tips or suggestions?

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  • 2k rows update is very slow in MySQL

    - by sergeik
    Hi all, I have 2 tables: 1. news (450k rows) 2. news_tags (3m rows) There are some triggers on news table update which updating listings. This SQL executes too long... UPDATE news SET news_category = some_number WHERE news_id IN (SELECT news_id FROM news_tags WHERE tag_id = some_number); #about 3k rows How can I make it faster? Thanks in advance, S.

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  • Execution issue with PyModule_AddIntConstant function

    - by karnol
    I m learning python c api functions and keen to learn python 3.1 stable version. Found an unresolved issue recently and tried PyModule_AddIntConstant(PyObject *module, const char *name, long value) Runtime error occurred for this function call. Is there something wrong with the function in python 3.1?

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  • is it possible in javascript to create shortcuts with sequence like 123,345 instead of combo?

    - by frankB
    I already used some script to implement the shortcuts in my web page but i was wondering if could be possible to associate some combination not syncronic like Ctrl+X but more like a sequence typing 1..2..3 or any other combination to execute a script... lets assume this example: you have a long list with numbers: you could type 3..5...6, so you can go to the item 356 passing trough the item 3 then 35 then 356 more or less like when you type while selecting a select box i hope it was clear, id not easy to explain...

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  • Where is my software installed in Linux?

    - by David
    I use whereis matlab and find: /usr/local/bin/matlab , which is a very long bash file. How can I find where matlab is installed, I mean, its installed folder. EDIT: I used the following method: open matlab and use edit svds.m to open the svds.m file and the editor shows the folder:)

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  • Text overlap div

    - by newinjs
    Hello, I have a comment box, if they enter long one word, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" the box will break(text out of div), i have used overflow:hidden but my friend want it to break like normal text. Any idea how to fix ?

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  • How to instantiate a particular view controller with storyboard in iOS at early stage of loading?

    - by dmirkitanov
    When using tabs with storyboard in iOS 5, some of them may take quite a long time to initialize when switching to it (for example, a tab containing GLKViewController). This happens because an amount of work in viewDidLoad method in this controller could be very big. Is there a way to initialize particular view controller (and call it's viewDidLoad method) defined in the storyboard at early stage - when an application starts? Having done this, the delay should be eliminated.

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  • How to POST data to an HTTP page from an HTTPS page

    - by buster55
    I know this is a long shot, but I figured I'd ask the question anyway. I have an HTTPS page and am dynamically creating a form. I want to POST the form to an HTTP page. Is this possible without the browser popping up a warning? When I do this on IE8, I get the following message: Do you want to view only the webpage content that was delivered securely? Essentially, I'm asking about the inverse of question 1554237.

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  • fill an array with Int like a Char; C++, cin object

    - by Duknov007
    This is a pretty simple question; first time poster and long time looker. Here is my binary to decimal converter I wrote: #include <iostream> #include <cmath> using namespace std; const int MAX = 6; int conv(int z[MAX], int l[6], int MAX); int main() { int zelda[MAX]; const int d = 6; int link[d]; cout << "Enter a binary number: \n"; int i = 0; while (i < MAX && (cin >> zelda[i]).get()) //input loop { ++i; } cout << conv(zelda, link, MAX); cin.get(); return 0; } int conv(int zelda[MAX], int link[6], int MAX) { int sum = 0; for (int t = 0; t < MAX; t++) { long int h, i; for (int h = 5, i = 0; h >= 0; --h, ++i) if (zelda[t] == 1) link[h] = pow(2.0, i); else link[h] = 0; sum += link[t]; } return sum; } With the way the input loop is being handled, I have to press enter after each input of a number. I haven't added any error correction yet either (and some of my variables are vague), but would like to enter a binary say 111111 instead of 1 enter, 1 enter, 1 enter, etc to fill the array. I am open to any technique and other suggestions. Maybe input it as a string and convert it to an int? I will keep researching. Thanks.

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  • Calling constructors in c++ without new

    - by Nils
    I've often seen that people create objects in C++ using Thing myThing("asdf"); Instead of Thing myThing = myThing("asdf"); This seems to work (using gcc), at least as long as there are no templates involved. My question now, is the first line correct and if so should I use it?

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  • Save all file names in a directory to a vector

    - by Bobby
    I need to save all ".xml" file names in a directory to a vector. To make a long story short, I cannot use the dirent API. It seems as if C++ does not have any concept of "directories". Once I have the filenames in a vector, I can iterate through and "fopen" these files. Is there an easy way to get these filenames at runtime?

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  • Nhibernate: using Expression

    - by VoodooChild
    Hello, Using nHibernate, I would like to query on an integer datatype, but its always returning the exact match. How could I write an expression that returns a list starting with the number entered? right now I am using it as: (clientNum is a long) crit.Add(Expression.Like("ClientNumber", clientNum)); //this always gives me exact matches only so I tried the following, but its complainging of a wroing type (its only expecting a string) crit.Add(Expression.Like("ClientNumber", clientNum, MatchMode.Start));

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  • Manually Increasing the Amount of CPU a Java Application Uses

    - by SkylineAddict
    I've just made a program with Eclipse that takes a really long time to execute. It's taking even longer because it's loading my CPU to 25% only (I'm assuming that is because I'm using a quad-core and the program is only using one core). Is there any way to make the program use all 4 cores to max it out? Java is supposed to be natively multi-threaded, so I don't understand why it would only use 25%.

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  • How do I test the speed of a mySQL query?

    - by Chris
    I have a select and query like below... $sql = "SELECT * FROM notifications WHERE to_id='".$userid."' AND (alert_read != '1' OR user_read != '1') ORDER BY alert_time DESC"; $result = mysql_query($sql); how do I test how long the query took to run?

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  • The right way to write "ID" in columns in SQL

    - by radbyx
    My first question in here. I like the site so much :) I've a SQL table called Product. In that table I want to make a column for the ID of the product, and I really like to now the right way of write ID because I make alot of ID columns in the long run. So is it: "ID" or "Id" ? And also a foreign key in another table, is that called ProductID or ProductId? Thx guys.

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  • How to handle main option with Getopt

    - by Jérôme
    I want to handle a feature which seems to me almost natural with programs, and I don't know how to handle it with Getopt perl package (no matter Std ot Long). I would like something like: ./perlscript <main option> [some options like -h or --output-file some_name] Options will be handled with - or --, but I want to be able to let the user give me the main and needed option without dashes. Is Getopt able to do that, or do I have to handle it by hand?

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  • SQL Server 2005: Why would a delete from a temp table hang forever?

    - by Dr. Zim
    DELETE FROM #tItem_ID WHERE #tItem_ID.Item_ID NOT IN (SELECT DISTINCT Item_ID FROM Item_Keyword JOIN Keyword ON Item_Keyword.Keyword_ID = Keyword.Record_ID WHERE Keyword LIKE @tmpKW) The Keyword is %macaroni%. Both temp tables are 3300 items long. The inner select executes in under a second. All strings are nvarchar(249). All IDs are int. Any ideas? I executed it (it's in a stored proc) for over 12 minutes without it finishing.

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  • C# BestPractice: Private var and Public Getter/Setter or Public Var

    - by Desiny
    What are the advantages and differences between the below two coding styles... public void HelloWorld () { private string _hello; public string Hello { get { return _hello; } set { _hello = value; } } } or public void HelloWorld () { public string Hello { get; set; } } My preference is for short simple code, but interested to hear opinions as I see many developers who insist on the long route.

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  • Is it safe to make GL calls with multiple threads?

    - by user146780
    I was wondering if it was safe to make GL calls with multiple threads. Basically I'm using a GLUtesselator and was wondering if I could divide the objects to draw into 4 and assign a thread to each one. I'm just wondering if this would cause trouble since the tesselator uses callback functions. Can 2 threads run the same callback at the same time as long as that callback does not access ant global variables? Are there also other ways I could optimize OpenGL drawing using multithreading? Thanks

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