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  • globally get any field value in user table of logged in user

    - by Jugga
    Im making a gaming community and i wanna be able to grab any info of the user on any page without so instead of having much of queries on all pages i made this function. Is it better to do this? Will this slow down the site? /** * ??????? ???????? ?? ????? ??????? authed ?????????????. */ function UserData($f) { global $_SESSION; return mysql_result(mysql_query("SELECT `$f` FROM `users` WHERE `id` = ".intval($_SESSION['id'])), 0, $f); }

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  • How to hide an element after $compile?

    - by Miron
    How to hide directive generated html after inserting it to body? Directive has "replace" set to trueThere is a directive: .directive('location', function () { return { restrict : 'A', scope : {}, replace : true, templateUrl: 'common/components/location/location.html', link : function (scope, element, attr) {……} } }); So it is used in another directive: var scope = $rootScope.$new(true); var directive = $compile('<div location></div>')(scope); $document.find('body').append(directive); directive.hide(); - not working How to hide directive generated html after inserting it to body? Directive has "replace" set to true

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  • Set the mouseover Attribute of a div using JQuery

    - by Abs
    Hello all, I would like to set an attribute for a div. I have done this: $('#row-img_1').onmouseover = function (){ alert('foo'); }; $('#row-img_2').onmouseout = function (){ alert('foo2'); }; However, the above has not worked, it does not alert when mouse is over or when it moves out. I have also tried the $('#row-img_1').attr(); and I could not get this to work either. I am aware that I should be using a more effective event handling system but my divs are dynamically generated. Plus this is a small project. ;) Thanks all for any help.

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  • C++ DLL which can inform a calling program about its progress

    - by Felix Dombek
    My boss wants me to write a DLL in C++ (MSVC++2010) which can perform a Volume Shadow Copy which he can call from VB6 (or at a later point other languages) and which can give status updates back while it is not finished. He calls it "events". I have the feeling that I finally need to learn COM (I'd rather not ...) ... also, a callback function comes to my mind, but it's surely impossible to hand over function pointers from VB6 to C++? Can someone outline what I have to learn and how this can be accomplished, with or without COM?

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  • jQuery - Targeting specific ID's

    - by Cecil
    Hey All, I have the following code: <script type="text/javascript" language="javascript"> $(document).ready(function() { $("input:checkbox").click(function(){ var group = "input:checkbox[name='"+$(this).attr("name")+"']"; $(group).attr("checked",false); $(this).attr("checked",true); }); }); </script> How do i get it to target a specific ID rather than every checkbox on the page? i.e if the group of checkboxes im trying to target is #thisgroup Cheers,

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  • Combining Arrays in Javascript

    - by Bigbohne
    Maybe it's to late in germany (1:04AM) or I'm missing something... How can I combine these two arrays: a = [1, 2, 3] and b = [a, b, c] so that i get: [[1, a], [2, b], [3, c]] Thank and ... spend more time sleeping! :) Edit: Ok, i see this function i called "zip". +1 Knowledge And there is no builtin function in Javascript for this. +1 Knowledge And I should have said that the arrays are equal in length. -1 Knowledge ... = positiv day. Thx

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  • 3x3 Average filter in matlab

    - by turingcomplete
    I've written code to smooth an image using a 3x3 averaging filter, however the output is strange, it is almost all black. Here's my code. function [filtered_img] = average_filter(noisy_img) [m,n] = size(noisy_img); filtered_img = zeros(m,n); for i = 1:m-2 for j = 1:n-2 sum = 0; for k = i:i+2 for l = j:j+2 sum = sum+noisy_img(k,l); end end filtered_img(i+1,j+1) = sum/9.0; end end end I call the function as follows: img=imread('img.bmp'); filtered = average_filter(img); imshow(uint8(filtered)); I can't see anything wrong in the code logic so far, I'd appreciate it if someone can spot the problem.

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  • Why is const required [C++] ? [closed]

    - by Andy Leman
    Possible Duplicate: What's the difference between a const member function and a non-const member function? class Message { public: Message(const char* pStr, const char* key); Message(const char* pStr); Message(); void encryptMessage(); void decryptMessage(); const char* getUnMessage() const; const char* getEnMessage() const; void getMessage(); void getKey(); ~Message(); private: char* pUnMessage; char* pEnMessage; char* pKey; }; In this program, why using const? (2 different places) Please explain those 2 for me. Thank you very much!

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  • Jquery convert string of one type to string array.....

    - by chandru_cp
    Consider a string which is {"Table" : [{"Bird" : "Peacock"}, {"Bird" : "Crow"}]} to this ["Peacock", "Crow"] in jquery... Is this possible? EDIT: I am doing this but didnt work... $(document).ready(function() { var obj = JSON.parse('{"Table" : [{"Bird" : "Peacock"},{"Bird" : "Crow"}]}'); myarray = []; $.each(obj.table, function(i, v) { myarray.push(v.Bird); }); $("#tags").autocomplete(myarray, { width: 138, max: 4, highlight: false, multiple: true, multipleSeparator: " ", scroll: true, scrollHeight: 300 }); });

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  • Wrapping multiple images inside a <div> in jQuery

    - by alekone
    hello! I need to find all the images inside a div, and wrap a div around them. here's the code I come up with, but that's not working! any ideas? thanks! jQuery(function(){ my_selection = []; $('.post').each(function(i){ if ($(this).find('img').length > 1 ){ my_selection.push(['.post:eq(' + i + ')']); } }); $( my_selection.join(',')).wrapAll('<div class="wrapper"></div>'); });

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  • Zend Namespace - Check if Session Exists

    - by Vincent
    All, I am using Zend Framework and Zend_Session to do global session management for my application. I plan to clear all sessions on logout and hence am using the following code: if($this->sessionExists()) { $this->destroy(); } But it seems like it's not doing a good job.. I am getting an error: PHP Warning: session_destroy() [<a href='function.session-destroy'> function.session-destroy</a>]: Trying to destroy uninitialized session How can I get rid of this error? Is there an alternative to sessionExists()?

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  • How do you hide an image tag based on an ajax response?

    - by Chris
    What is the correct jquery statement to replace the "//Needed magic" comments below so that the image tags are hidden or unhidden based on the AJAX responses? <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>JQuery</title> <style type="text/css"> .isSolvedImage{ width: 68px; height: 47px; border: 1px solid red; cursor: pointer; } </style> <script src="_js/jquery-1.4.2.min.js" type="text/javascript"> </script> </head> <body> <div id='true1.txt' class='isSolvedImage'> <img src="_images/solved.png"> </div> <div id='false1.txt' class='isSolvedImage'> <img src="_images/solved.png"> </div> <div id='true2.txt' class='isSolvedImage'> <img src="_images/solved.png"> </div> <div id='false2.txt' class='isSolvedImage'> <img src="_images/solved.png"> </div> <script type="text/javascript"> $(function(){ var getDivs = 0; //iterate div with class isSolvedImage $("div.isSolvedImage").each(function() { alert('div id--'+this.id); // send ajax requrest $.get(this.id, function(data) { // check if ajax response is 1 alert('div id--'+this.url+'--ajax response--'+data); if(data == 1){ alert('div id--'+this.url+'--Unhiding image--'); //Needed magic //Show image if data==1 } else{ alert('div id--'+this.url+'--Hiding image--'); //Needed magic //Hide image if data!=1 } }); }); }); </script> </body> </html>

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  • How to check whether iterators form a contiguous memory zone?

    - by Vincent
    I currently have the following function to read an array or a vector of raw data (_readStream is a std::ifstream) : template<typename IteratorType> inline bool MyClass::readRawData( const IteratorType& first, const IteratorType& last, typename std::iterator_traits<IteratorType>::iterator_category* = nullptr ) { _readStream.read(reinterpret_cast<char*>(&*first), (last-first)*sizeof(*first)); return _readStream.good(); } First question : does this function seem ok for you ? As we read directly a block of memory, it will only work if the memory block from first to last is contiguous in memory. How to check that ?

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  • Why can't I open a new window on my jquery ajax callback?

    - by KyleGobel
    to show my problem in a couple examples... THIS WORKS $.post("SomePage.aspx", { name : "value" }, function (data) { alert(data); }, "text"); THIS DOESN'T WORK $.post("SomePage.aspx", { name : "value" }, function (data) { window.open("http://www.google.com"); }, "text"); In the first example, I get alerted with what i'm expecting. In the second example, nothing happens. No window is opened. If I add an alert or something before or after the window.open call, the alert works fine, but the window doesn't open. If I add a window.open completly after the $.post method, the window opens fine (of course this doens't help me at all). I'm wondering why I can't open a window in the callback. What do I have to do to be able to open a window? I'd like to open a window to show some fancy results. Any help is appreciated, thanks.

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  • boost scoped_lock mutex crashes

    - by JahSumbar
    hello, I have protected a std::queue's access functions, push, pop, size, with boost::mutexes and boost::mutex::scoped_lock in these functions from time to time it crashes in a scoped lock the call stack is this: 0 0x0040f005 boost::detail::win32::interlocked_bit_test_and_set include/boost/thread/win32/thread_primitives.hpp 361 1 0x0040e879 boost::detail::basic_timed_mutex::timed_lock include/boost/thread/win32/basic_timed_mutex.hpp 68 2 0x0040e9d3 boost::detail::basic_timed_mutex::lock include/boost/thread/win32/basic_timed_mutex.hpp 64 3 0x0040b96b boost::unique_lock<boost::mutex>::lock include/boost/thread/locks.hpp 349 4 0x0040b998 unique_lock include/boost/thread/locks.hpp 227 5 0x00403837 MyClass::inboxSize - this is my inboxSize function that uses this code: MyClass::inboxSize () { boost::mutex::scoped_lock scoped_lock(m_inboxMutex); return m_inbox.size(); } and the mutex is declared like this: boost::mutex m_inboxMutex; it crashes at the last pasted line in this function: inline bool interlocked_bit_test_and_set(long* x,long bit) { long const value=1<<bit; long old=*x; and x has this value: 0xababac17 Thanks for the help

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  • How to hide/show div using jQuery without altering dimensions?

    - by Byron S
    I have a div that is holding a google chart: <div id="chart_div" style="width: 600px; height: 300px;"></div> It has one CSS property: display: none. On the click of a button, I would like to have the chart be displayed using jQuery hide() and show(). It's working, however, the chart's dimensions are set to something different than I have specified and refuse to change to what I have specified. Here is my jquery code: $(document).ready(function(){ var chart = $('#chart_div'); $('#submit').click(function(){ chart.show('slow'); }); }); Let me know if theres any more code you would like to see. By the way, the chart div is not being contained in anything else so that isn't the problem.

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  • JQuery div tag has children in FireFox but not Chrome

    - by John Edwards
    I am using JQuery ajax to load images from a url, display them, and then place a button on top of each image. The code works in firefox, but in chrome, the div parent "photos" that should have all the children(one child div "photo" for each image received from the url) is 0. I have tried read() and load(), but nothing seems to work. If I run alert($('#photos').children().size()); in the Chrome console it returns the children. But at execution it returns 0. Any ideas? $(window).load(function () { $("p").text("The DOM is now loaded and can be manipulated."); //returns 0 in chrome, but 10 in firefox alert($('#photos').children().size()); $('#photos').children().each(function() { //do stuff

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  • Interpreters: Handling includes/imports

    - by sub
    I've built an interpreter in C++ and everything works fine so far, but now I'm getting stuck with the design of the import/include/however you want to call it function. I thought about the following: Handling includes in the tokenizing process: When there is an include found in the code, the tokenizing function is recursively called with the filename specified. The tokenized code of the included file is then added to the prior position of the include. Disadvantages: No conditional includes(!) Handling includes during the interpreting process: I don't know how. All I know is that PHP must do it this way as conditional includes are possible. Now my questions: What should I do about includes? How do modern interpreters (Python/Ruby) handle this? Do they allow conditional includes?

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  • Simple integer encryption

    - by tloflin
    Is there a simple algorithm to encrypt integers? That is, a function E(i,k) that accepts an n-bit integer and a key (of any type) and produces another, unrelated n-bit integer that, when fed into a second function D(i,k) (along with the key) produces the original integer? Obviously there are some simple reversible operations you can perform, but they all seem to produce clearly related outputs (e.g. consecutive inputs lead to consecutive outputs). Also, of course, there are cryptographically strong standard algorithms, but they don't produce small enough outputs (e.g. 32-bit). I know any 32-bit cryptography can be brute-forced, but I'm not looking for something cryptographically strong, just something that looks random. Theoretically speaking it should be possible; after all, I could just create a dictionary by randomly pairing every integer. But I was hoping for something a little less memory-intensive.

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  • How to use the watchdog timer in a RTOS?

    - by user946230
    Assume I have a cooperative scheduler in an embedded environment. I have many processes running. I want to utilize the watchdog timer so that I can detect when a process has stopped behaving for any reason and reset the processor. In simpler applications with no RTOS I would always touch the watchdog from the main loop and this was always adequate. However, here, there are many processes that could potentially hang. What is a clean method to touch the watchdog timer periodically while ensuring that each process is in good health? I was thinking that I could provide a callback function to each process so that it could let another function, which oversees all, know it is still alive. The callback would pass a parameter which would be the tasks unique id so the overseer could determine who was calling back.

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  • using setSfGuardUser() to save the current user in the model

    - by user334017
    My application makes use of the sfGuardUser plugin. One of my tables has a relation onto the sf_guard_user table so there is a corresponding setSfGuardUser() function in the base model. From Actions.class.php, I am attempting to set the current user into the object using this function, (Which I then save in the database). my attempt: ->setSfGuardUser($this->getUser()); //called from inside Actions.class.php this throws an error: Couldn't call Doctrine_Core::set(), second argument should be an instance of Doctrine_Record or Doctrine_Null when setting one-to-one references. ...# at Doctrine_Record->coreSetRelated('sfGuardUser', object('myUser')) Which makes me think that getUser() is not returning a sfGuardUser object, though I don't know how to check this. Can anyone offer any insight?

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  • How do I toggle two images using jQuery and radio buttons?

    - by trench
    This isn't pretty, but I think you'll get what I'm trying to do. <label><input name="jpgSel" type="radio" value="0">jpg 1</label><br /> <label><input name="jpgSel" type="radio" value="1">jpg 2</label><br /> <div id="showjpg"></div> and $(document).ready(function() { $("select").change(function () { if ($("jpgSel:checked").val() == 1) { $('#showjpg').attr({ src: 'one.jpg', alt: 'one dot jpg' }); } else { $('#showjpg').attr({ src: 'two.jpg', alt: 'two dot jpg' }); } });

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  • How to open a file with chinese name in python.

    - by mahendraliya
    I am trying to open a file in "w" mode with "open()" function in python. The filename is : ?????.jpg. The open function fails with this filename but succeeds with normal files. How can I open a file with names which are not in English in python? My code is as follows: try: filename = urllib.quote(filename.encode('utf-8')) destination = open(filename, 'w') yield("<br>Obtained the file reference") except: yield("<br>Error while opening the file") I always get "Error while opening the file" for non-english filenames. Thanks in advance.

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  • Mongoose 3.1.0: Why the callback in the connection.db.dropDatabase(callback) is never called?

    - by Totty
    Code: var connection = mongoose.createConnection('mongodb://localhost:9000/' + databaseName); connection.db.dropDatabase(function(err){ // never reach this point! debugger; console.log(err); console.log('-------------->Dropped database: ' + databaseName); }); If I do connection.open it says that it's already opening and no multiple calls to "open" are supported for the same connection. Even this doesn't work var conn = mongoose.createConnection('mongodb://localhost',databaseName, 9000, {}, function(){ console.log('created'); // is reached conn.db.dropDatabase(callback); // but the callback is not called anyway }); What is the problem? ("mongoose": "3.1.0") thanks

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