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  • How to detect textarea or input type="text" editing?

    - by kavoir.com
    I use this snippet to prevent the user from accidentally navigating away from the editing page: var warning = false; window.onbeforeunload = function() { if (warning) { return ''; } } Now I want to set the variable warning to be true if any of the textarea or input type="text" has been modified, I want to use the onkeyup event such as in: document.getElementById('textarea_id').onkeyup = function() { warning = true; } But it's not working. Don't quite want to use jQuery on this. Any insights?

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  • foo and _foo - about variables inside a class

    - by kame
    class ClassName(object): """ """ def __init__(self, foo, bar): """ """ self.foo = foo # read-write property self.bar = bar # simple attribute def _set_foo(self, value): self._foo = value def _get_foo(self): return self._foo foo = property(_get_foo, _set_foo) a = ClassName(1,2) #a._set_foo(3) print a._get_foo() When I print a._get_foo() the function _get_foo prints the variable self._foo . But where does it come from? self._foo and self.foo are different, aren't they?

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  • MySQL ORDER BY rand(), name ASC

    - by Josh K
    I would like to take a database of say, 1000 users and select 20 random ones (ORDER BY rand(),LIMIT 20) then order the resulting set by the names. I came up with the following query which is not working like I hoped. SELECT * FROM users WHERE 1 ORDER BY rand(), name ASC LIMIT 20

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  • Python regular expression

    - by user3692739
    I have this HTTP Request and I want to display only the Authorization section (base64 Value) : any help ? This Request is stored on a variable called hreq I have tried this : reg = re.search(r"Authorization:\sBasic\s(.*)\r", hreq) print reg.group() but doesn't work Here is the request : HTTP Request: Path: /dynaform/custom.js Http-Version: HTTP/1.1 Host: 192.168.1.254 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: http://domain.com/userRpm/StatusRpm.htm Authorization: Basic YWhtEWa6MDfGcmVlc3R6bGH I want to display the value YWhtEWa6MDfGcmVlc3R6bGH Please I need your help thanks in advance experts

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  • SQL datetime LIKE select - why do I need an extra %?

    - by tomsullivan1989
    Can someone explain to me why when I perform a LIKE select in SQL (T-SQL) on a varchar column I can do the following: SELECT * FROM Table WHERE Name LIKE 'Th%' to get names beginning with Th, but when I do the same on a datetime column I need a % before the year, like: SELECT * FROM Table WHERE Date LIKE '%2013%' to get dates in 2013. The datetimes are stored in yyyy-MM-dd hh:mm:ss format. I know I could use a DATEPART style query but I was just interested in why I need the extra % here.

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  • ASP.net MVC How to change the Textbox Class upon validation failure?

    - by Harry
    I notice in the default MVC template project that the Account registration fields are highlighted via a class change. I can't seem to get the same behavour out of my own code (in the same project - same CSS etc) What might be stopping this from occuring? Update I believe this relates to one of my other questions Because I was having trouble with NullReferenceExceptions I have changed the Html.ValidationMessage fields to have different names than the target fields. So really, I need to resolve this question

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  • Quick question about jQuery selector content efficiency

    - by serg
    I am loading HTML page through ajax and then doing a bunch of searches using selectors: $.ajax({ ... dataType: "html", success: function(html) { $("#id1", html); $(".class", html); //... } } Should I extract $(html) into a variable and use it as a content, or it doesn't matter (from performance point)? success: function(html) { $html = $(html); $("#id1", $html); $(".class", $html); //... }

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  • Static variables in C and C++

    - by Naveen
    Is there any difference between a variable declared as static outside any function between C and C++. I read that static means file scope and the variables will not be accessible outside the file. I also read that in C, global variables are static . So does that mean that global variables in C can not be accessed in another file?

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  • Find most common string in an array

    - by j.
    I have this array, for example (the size is variable): x = ["1.111", "1.122", "1.250", "1.111"] and I need to find the most commom value ("1.111" in this case). Is there an easy way to do that? Tks in advance!

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  • How to name application specific fields in couchdb

    - by karlthorwald
    I tried adding my own fields with names like _myappvar and _myotherappvar to documents to distinguish them from data fields. At first it worked but at certain points futon complains. What is the right way to go? I am using couchdb 0.9.0, this may be old, butI will not be able to upgrade in this iteration.

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  • opensourcing a website code

    - by pygabriel
    Hi! I'm writing a little website (webapp) in php+codeigniter, I'd really like to make it open source (to attract collaborators and to have a free VCS hosting). Is that a good practice? This mine security? Which are the best tools to change important data before uploading? (like config files with db names and passwords used for testing etc..)

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  • turn array into object active record can use

    - by stormdrain
    I'm running a query and then decrypting it in the controller. After it is decrypted I was putting the results into an array and sending that to the view. The problem is with this solution I need to rewrite all of my views to parse the arrays sent instead of the active record objects sent before. Is there a way to turn the decrypted array back into an object that will work with existing active record code in the view? Before Controller: $name = $this->Clients_model->getNameData('*','client_id='.$clid,''); $data['name'] = $name; $this->load->view('names/name_view',$data); View: if($name->num_rows()) > 0){ foreach($name->result() as $row){ echo $row->data; [...] Now Controller: $name = $this->Clients_model->getNameData('*','client_id='.$clid,''); $nameArray= array(); foreach ($name->result() as $row){ $x = $row; $keys = array('id','client_id'); $unenc = array(); foreach ($x as $key=>$value){ if(! in_array($key, $keys)){ $unenc[$key]=$this->encrypt->decode($value,$this->e_key); }else{ $unenc[$key]=$value; } } array_push($nameArray,$unenc); } //Creates an object with the data, but doesn't work with CI active record //foreach ($nameArray as $akey => $aval) { // $namea -> {$akey} = $aval; //} //return $data; $data['name'] = $nameArray; $this->load->view('names/name_view',$data); View: if(count($name) > 0){ foreach($name as $key=>$row){ echo $row['data']; [...] In the second (now) controller there is some commented out code that will make an object, but it doesn't behave as expected with active record. Is there a way to take the $nameArray() array and change it into an object that will work with existing view code (such as the code in the 'before:view' above)? Thanks!

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  • Where is the VB.Net debugger "Make Object ID" function?

    - by Josh
    When using the visual studio 2008 debugger with c# i can right-click on a variable and choose "Make Object ID" which allows me to watch that object (via it's ID) regardless of whether it is in the current stack frame or not. When the debugger is in VB code, (doesnt matter if it's run from a c# unit test or a vb unit test) That option isn't there. Where did VB put this feature? Or does it simply not support it like so many other helpful c# features?

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  • how to generate the "create table" sql statement for an existing table in postgreSQL

    - by Raja
    I have a table created long ago in postgreSQL. Now i want to look at the sql statement used to create it but cannot figure it out. Also when i do the \dS+ tablename it says table not found, but \dt+ tablename is working fine. The \dS+ lists all the table names owned by the root postgres user and doesn't show up tables that i created with my user account. Any help is greatly appreciated. Thanks

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  • Clean way to assign value unless empty

    - by atmorell
    Hello, I often need to assign a variable, if the source value is set. So far I have done it like this: filters[:red] = params[:search][:red] unless params[:search][:red].nil? This works but looks a bit clumsy. There must be a more DRY way of getting this result. Any suggestions? Best regards. Asbjørn Morell.

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  • Assigning IDs to instances of a class (Pythonic)

    - by mellort
    I want to have each instance of some class have a unique integer identifier based on the order that I create them, starting with (say) 0. In Java, I could do this with a static class variable. I know I can emulate the same sort of behavior with Python, but what would be the most 'Pythonic' way to do this? Thanks

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  • Compare two tables rows and remove if match

    - by Istvan
    Could anyone help me please in JQuery? I have two tables on my site leftTable and rightTable with same column names. The leftTable I fill up from a DB, but the rightTable it just contains some rows. What I would like to do is to not show (or remove) in the leftTable those rows which are exist in the rightTable! I Tryed this: $("#tableLeft tr").each(function () {if ($(this).find("td")[0].innerHTML == $("#tableRight tr").find("td")[0].innerHTML) {$(this).remove;}});

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  • Custom Elmah YSOD data

    - by user144612
    I'm using Elmah with ASP.NET and wondering how I would add custom data, such as a session variable, to an unhandled exception email. I've tried several handlers in the Global.asax file but can't seem to find the right one.

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  • How do you properly use WideCharToMultiByte

    - by Obediah Stane
    I've read the documentation here: http://msdn.microsoft.com/en-us/library/ms776420(VS.85).aspx I'm stuck on this parameter: lpMultiByteStr [out] Pointer to a buffer that receives the converted string. I'm not quite sure how to properly initialize the variable and feed it into the function

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  • Should we use temporary variables for the returned values of functions?

    - by totymedli
    I thought about this: Is there a performance difference in these two practices: Store the return value of a function in a temporary variable than give that variable as a parameter to another function. Put the function into the other function. Specification Assuming all classes and functions are written correctly. Case 1. ClassA a = function1(); ClassB b = function2(a); function3(b); Case 2. function3(function2(function1())); I know there aren't a big difference with only one run, but supposed that we could run this a lot of times in a loop, I created some tests. Test #include <iostream> #include <ctime> #include <math.h> using namespace std; int main() { clock_t start = clock(); clock_t ends = clock(); // Case 1. start = clock(); for (int i=0; i<10000000; i++) { double a = cos(1); double b = pow(a, 2); sqrt(b); } ends = clock(); cout << (double) (ends - start) / CLOCKS_PER_SEC << endl; // Case 2. start = clock(); for (int i=0; i<10000000; i++) sqrt(pow(cos(1),2)); ends = clock(); cout << (double) (ends - start) / CLOCKS_PER_SEC << endl; return 0; } Results Case 1 = 6.375 Case 2 = 0.031 Why is the first one is much slower, and if the second one is faster why dont we always write code that way? Anyway does the second pratice has a name? I also wondered what happens if I create the variables outside the for loop in the first case, but the result was the same. Why?

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  • Illegal Character in File Name

    - by Sri Kumar
    Hi, During my file upload process, I found illegal character getting saved in Table. zurück.pdf, C _Word.doc were the file names. Here ü, space between C and _Word was found as ? in the Table Column. I have validate the filename in client side by replacing non-alpha numeric values by _ (underscore), but still it escapes and persist into DB. How can these handled in Client side?

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  • Clone List Elements in Java

    - by Amir Rachum
    Hi all, I have a variable of type List<RelationHeader>. Now I want to copy all the elements in this list to a new list, but I want to actually copy all the members by value (clone them). Is there a quick command to do this, or do I need to iterate over the list and copy them one at a time?

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