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  • Adding index key in Grails' Domain

    - by firnnauriel
    I tried following this reference and this is now my domain's code: class SnbrActVector { long nid String term double weight static mapping = { version false nid index:'Nid_Idx' } static constraints = { term(blank:false) } } What I want is to do is to add an index key for 'nid' column. I dropped the existing table and run the app again so the table is then recreated. However, when i check for list of indices, I can't see a 'Nid_Idx', only available is 'PRIMARY'. Do I have to manually create the index and name it 'Nid_idx in my mysql database? Thanks.

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  • a newbie gcc compiler and c language question

    - by dydx
    Hi, when I'm trying to compile my c program it gives me this error warning: integer constant is too large for 'long' type which refers to these lines int barcode, a, b, c; scanf("%d", &barcode); a = barcode / 1000000000000; b = barcode / 100000000000 % 10; c = barcode / 10000000000 % 10; and the rest is fine. I know I'm not supposed to use int for such a large number, any suggestions on what I should use? if I replace int with double what should the '%d' part be replaced with then?

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  • Technologies used in EMBL

    - by Sergej Andrejev
    My fried suggest I try to apply for a job at EMBL. I'm not bioinformatic in any way, but my friend (who by the way is a biologist working at EMBL) insists that I could adapt to the new environment as long as I have a interest in subject and am generally good at learning new things. But here is a catch. For the last 4 years I've been working with .Net and other Microsoft technologies which I enjoy even more lately. Now, from googling I couldn't find whether it will be possible for me to stick with .Net because it was all perl, java, linux and so on. Is there anybody who could prove whether there is at least minor opportunity for a .Net developer to at least partly develop with C#?

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  • How to break a list into chunks based on some property?

    - by CurlyFro
    public class InvestorMailing { public string To { get; set; } public IEnumerable<string> Attachments { get; set; } public int AttachmentCount { get; set; } public long AttachmentSize { get; set; } } i have an IList<InvestorMailing> mailingList. if the attachment size is greater than x, then i need to split my list and break it into chunks. is there an easy linq-y way to do this?

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  • how to make the two class fields(not referring any other table) as composite key in hibernate?

    - by M Sach
    i want to make pgId and pgName both as composite key where both pgId anf pgName are assgined values. i am not sure how should i go about it? on net i get examples where composite key column refering to column of some other table but not this kind of scenario? @Entity @Table(name = "PersonDetails") public class PersonDetailsData implements Serializable { private static final long serialVersionUID = 1L; @Id @Basic private int pgId; @Basic(optional = true) @Column(nullable = true) private int orgId; @Basic(optional = true) @Column(nullable = true) private String pgName; public PersonWikiDetailsData() { } public int getPpId() { return ppId; } public void setPpId(int ppId) { this.ppId = ppId; } public String getSpaceName() { return spaceName; } public void setSpaceName(String spaceName) { this.spaceName = spaceName; } }

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  • Unable to send an associative array in JSON format in Zend to client

    - by Anorflame
    Hi, In one of my actions in a controller, I'm using the json view helper to send back a response to an ajax request. On the client side I alert the data that is passed to the success callback function. It works fine as long as the response is a number or an array with default keys. Once I try to send an associative array, it alerts with [object Object]. Server code: $childArray = array('key'=>'value'); $this->_helper->json($childArray); javascript: function displayChildren(data){ alert(data); } ... $.ajax({ url: "/po/add", dataType: "json", data: {format: "json"}, success: displayChildren }); I have no idea what am I doing wrong here, so any help would be appreciated...

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  • rule based file parsing

    - by user359490
    I need to parse a file line by line on given rules. Here is a requirement. file can have multiple lines with different data.. 01200344545143554145556524341232131 1120034454514355414555652434123213101200344545143554145556524341232131 2120034454514 and rules can be like this. if byte[0,1] == "0" then extract this line to /tmp/record0.dat if byte[0,1] == "1" then extract this line to /tmp/record1.dat if byte[0,1] == "2" then extract this line to /tmp/record2.dat I am looking for any language which can do this in a fast manner with a very long file size like 2 GB. Appreciate all the help in advance. Thanks

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  • Stopwatch vs. using System.DateTime.Now for timing events

    - by Randy Minder
    I wanted to track the performance of a piece of my application so I initially stored the start time using System.DateTime.Now and the end time also using System.DateTime.Now. The difference between the two was how long my code took to execute. I noticed though that the difference didn't appear to be accurate. So I tried using a Stopwatch object. This turned out to be much, much more accurate. Can anyone tell me why Stopwatch would be more accurate than calculating the difference between a start and end time using System.DateTime.Now? Thanks.

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  • Fork a process and send data to it inside Rails

    - by taro
    I'm making a Rails application. In the one action I need to spawn a long running process. This is not a problem. I can fork new process using spawn gem or some other. But some time after process has been spawned, user must be able to pass additional data to that process. Sure, I can fork process which will listen a UNIX socket, store socket address in the HTTP session and communicate with that process using drb protocol when user will require to pass new data to process. But I think it is not best solution and it will be a problem to deploy an application to the hosting. What is the easy way to do that?

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  • Breaking up large DataGridView for printing

    - by Hal
    Hey, I've got a single-row, 40 column-long DataGridView that i need to print. Since i can neither print it directly (because A4 sheets won't cut it ;)) nor adjust its width to the width of the page itself (because the headers look terrible), i wanted to break the DataGridView to 4 separate pieces and display 10 columns per row (imagine: column 1 to 10 in the first line, column 11 to 21 four or five lines below, etc...). Is there an easy way to do this? I was leaning towards a more manual approach (using fors), but i'd love to know if there's a more elegant way. Cheers

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  • What is the best way to make a game timer in Actionscript 3?

    - by Nuthman
    I have built an online game system that depends on a timer that records how long it took a player to complete a challenge. It needs to be accurate to the millisecond. Their time is stored in a SQL database. The problem is that when I use the Timer class, some players are ending up getting scores in the database of less than a second. (which is impossible, as most challenges would take at least 11 seconds to complete even in a perfect situation.) What I have found is that if a player has too many browser windows open, and/or a slow computer, the flash game slows down actually affecting the timer speed itself. The timer is 'spinning' on screen so you can physically see the numbers slowing down. It is frustrating that I cannot just open a second thread or do something to allow flash to keep accurate time regardless of whatever else is going on in the program. Any ideas?

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  • Is modifying a file without writing a new file possible in c++?

    - by Phenom
    Let's say I have a text file that is 100 lines long. I want to only change what is in the 50th line. One way to do it is open the file for input and open a new file for output. Use a for-loop to read in the first half of the file line by line and write to the second file line by line, then write what I want to change, and then write out the second half using a for-loop again. Finally, I rename the new file to overwrite the original file. Is there another way besides this? A way to modify the contents in the middle of a file without touching the rest of the file and without writing everything out again? If there is, then what's the code to do it?

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  • Passing arguments to a python service

    - by Grim
    Hi, I need some help with a python service. I have a service written in Python. What I need to do is to pass it some arguments. Let me give you an example to explain it a bit better. Lets say I have a service, that does nothing but writes something to a log. I'd like to write the same thing into the log several times, so I use a loop. I would like to pass the counter for the loop when I start the service, but I have no idea how. I start the service with: win32serviceutil.HandleCommandLine(WinService) I'm looking for something like win32serviceutil.HandleCommandLine(WinService,10) I don't really care how its done, as long as I can pass arguments to it. Have been trying to get this to work for the better part of the day with no luck. Also, the service isn't run directly, but is imported and then run from there.

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  • How to implement low pass filter using java

    - by chai
    Hello Everyone, I am trying to implement a low pass filter in Java. My requirement is very simple,I have to eliminate signals beyond a particular frequency (Single dimension). Looks like Butterworth filter would suit my need. Now the important thing is that CPU time should be as low as possible. There would be close to a million sample the filter would have to process and our users don't like waiting too long. Are there any readymade implementation of Butterworth filters which has optimal algorithms for filtering. Regards, Chaitannya

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  • ShowDialog and Hide form, when from is called from other object in VS2010

    - by Piotr Dabrowski
    Hallo, I have a modal Form, used for searching information in DB. This Form is used by a COM object, that waits for search result. Initialization of the form take a lot of time (because of building connection to DB). So, I initialize the Form (without showing it), and keep Form-object alive, as long as COM-object work. In this way I keep the state of the Form: public void Search() this.ShowDialog(); string result = this.ResultOfSearch; this.Hide() return result; And it doesn't work anymore on VS2010 (compiled for Framework 2.0). I search for alternative way to make a modal form (or a method to protect a form against Destroy() at the end of ShowDialog). Any ideas?

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  • Trying to get excel 2003 into already made windows form

    - by Dcurvez
    good afternoon everyone :) I got sucha dilemma! (hate being new at stuff!) What my problem is is that I have a project that is in full design mode swing right now. I built it using the Windows form.. Anyways, on one of my forms..that I already started building (very painstakingly).. Minds have changed and now what needs to be on that form is either a full excel 2003 workbook..or at the very least..excel worksheet. The problem is that I have not been using studio 2008 for long..and coding experience shows the same. Can someone please tell me how the heck I can put a worksheet or a workbook on that form without starting my whole project over using office forms? Please..go slow with this newbie cuz i really dont know anything and Jargon is confusing me even more :( thanxxXXX :)

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  • is there a flag "M_FAST" in FreeBSD kernel for Malloc Call ?

    - by KaluSingh Gabbar
    if you know there is one, can you let me know what its for ? if not please say so : ) thanks. Signature : void * malloc(unsigned long size, struct malloc_type type, int flags); for example. other flags are... M_ZERO Causes the allocated memory to be set to all zeros. M_WAITOK Indicates that it is OK to wait for resources. If the request cannot be immediately fulfilled, the current process is put to sleep to wait for resources to be released by other processes. The malloc(), realloc(), and reallocf() functions cannot return NULL if M_WAITOK is specified.** This is the root of my confusion EDIT: The clarification for M_FAST is made in my answer below.

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  • UIActionsSheet text shadow problem

    - by AlexVogel
    I have a problem with the text shadow of the UIActionSheet buttons. At iOS 4.0.2 long string were truncated automatically. No at iOS 4.2 these texts are presented with a smaller font. But now the offset of the shadow is corrupted and to big. Is there a possibility to change/remove the text shadow of the UIActionSheet. EDIT: I'm building the UIActionSheet not with initWithTitle:, but with the normal init and sets all needed properties afterwards because the number of possible buttons is dynamic and the texts cannot be change. I've tested it with initWithTitle: and got the same results.

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  • How do I turn a PDF email attachment to an image (jpg) in a PHP page?

    - by user351630
    Hi guys. Long time viewer, first time question asker. I'm trying to have my personal website parse through my mail box for attachments from a certain subscription list, and then be able to view the PDF attachments as images, preferably jpg. With the help of this: http://www.linuxscope.net/articles/mailAttachmentsPHP.html I'm currently using imap_base64() to decode the MIME data and create the PDF. However, I hate using PDF readers in general and I thought it would be a lot more streamlined if I could just view it as an image instead. I've heard for convert with ImageMagick, but would I need to actually write the PDF to a directory before using this, or can I convert somehow directly from the MIME data in the email? Thanks in advanced!

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  • Clickonce + .net client profile 4 framework + offline

    - by grimmersnee
    Hi, I have a windows form project using VS2010 and I am deploying using clickonce. I need the application to work offline as well as online. I have configured the prerequisite - .net client profile 4 and set the location to the same as the application. Everything seems to work as expected, but upon testing I have found it takes 5+ minutes to install the .net client profile 4 and it also requires a reboot. Why does it take so long to install offline (I thought this was going to be mega fast like promised? And why does it require a reboot!!!!????

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  • Access static constant variable from multiple threads in C

    - by user325519
    I have some experience with multithread programming under Linux (C/C++ & POSIX threads), however most obvious cases are sometimes very complicated. I have several static constant variables (global and function local) in my code, can I access them simultaneously from multiple threads without using mutexes? Because I don't modify them it should be ok, but it's always better to ask. I have to do heavy speed optimization, so even as fast operations as mutex lock/unlock are quite expensive for me, especially because my application is going to access these variables form long loops.

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  • How the websocket bi-directional concept work?

    - by GMsoF
    I think the main difference between websocket and http streaming (I am not refering to polling and long polling) is websocket allows bi-directional communication which is similar to usual raw socket programming. (above is my understanding, could be wrong, feel free to correct me.) My question is how the web client (browser) continue to send another request in the already-opened websocket? Usual http request will treat another request as new socket connection, but websocket does not, that is why I am confused, how it achieve that? It should be handled in Server side or Client (browser) side?

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  • select GUI on windows (wxPy vs pyQt)

    - by Golovko
    Hello! We are plan to create an application for monitoring and configuring our service (which is running on remote server). After long time discuss, we decide for python as pl for our app, because we love and know python (better, than english, really). but we don't know, what GUI toolkit preffered for our aims. We need fast (for development and running) app, which users are admins, mainteners and account managers. There is two GUI toolkit for python, which we know: wxPython and pyQT. Anybody have arguments pro et contra candidat? And maybe peoples know commercial applications, running in this products (only python version of toolkits)? Links are desirable. Thanks, and excuse my english.

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  • delete all records except the id I have in a python list

    - by jay_t
    Hi all, I want to delete all records in a mysql db except the record id's I have in a list. The length of that list can vary and could easily contain 2000+ id's, ... Currently I convert my list to a string so it fits in something like this: cursor.execute("""delete from table where id not in (%s)""",(list)) Which doesn't feel right and I have no idea how long list is allowed to be, .... What's the most efficient way of doing this from python? Altering the structure of table with an extra field to mark/unmark records for deletion would be great but not an option. Having a dedicated table storing the id's would indeed be helpful then this can just be done through a sql query... but I would really like to avoid these options if possible. Thanks,

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  • Drupal vs FatWire - Any thoughts?

    - by RadiantHex
    Hi folks, a company I am working for is considering the usage of a CMS, apparently two of the suggested CMSs are Drupal and FatWire. FatWire is proprietary and quite expensive, therefore it seems that there is a not so big community build around the product. Functionality seems to be extensive, even though a few design choices seem counter-intuitive and long-winded. Drupal instead is open source and has an big community backing the product. There are plenty of books around and usage seems more intuitive. Functionality wise I am unsure on how they compare. The main features that the company's team seem to like are team workflow features and revision control (present in FatWire, even though the implementation seems quite limited). Hopefully some of you guys have been faced with these two products before, and might have a few suggestions up their sleeve. Help would be much appreciated!

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