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  • Changing the innerHTML of elements in a nested div tag..

    - by PoorCoder
    -- Representative code only - I need to know how to change the innerhtml of the tablerow -- <html> <head> <script> //full javascript declaration - function call after page loads.. function () { document.getElementById('tr1').innerHTML='<td>Test</td>'; // does not work.. document.getElementByTagNames('tr')[0].innerHTML='<td>Test</td>'; // does not work.. document.getElementById('div2').getElementsByTagNames('tr')[0].innerHTML='<td>Test</td>'; //does not work.. document.getElementById('div1').div2.tr1.innerHTML='<td>Test</td>'; //nope } </script> </head> <body> <div id='div1'> <div id='div2'> <table> <tr id='tr1'></tr> </table> </div> </div> </body> </html> Thanks for the help

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  • What is the best way to convert a doctrine nested set to an li-structure?

    - by murze
    Hi, I'm using Doctrine NestedSet behavior. I'd like to render the tree using php to <ul>'s and <li>'s Here's an example of what the output might be: <ul> <li>Node 1</li> <li>Node 2 <ul> <li>Child 1 of Node 2</li> <li>Child 2 of Node 2 <ul> <li>Another Child</li> <li>Yet Another Child</li> </ul> </li> </ul> </li> <li>Node 3</li> </ul> What is the best way to do this?

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  • How do I make this nested for loop, testing sums of cubes, more efficient?

    - by Brian J. Fink
    I'm trying to iterate through all the combinations of pairs of positive long integers in Java and testing the sum of their cubes to discover if it's a Fibonacci number. I'm currently doing this by using the value of the outer loop variable as the inner loop's upper limit, with the effect being that the outer loop runs a little slower each time. Initially it appeared to run very quickly--I was up to 10 digits within minutes. But now after 2 full days of continuous execution, I'm only somewhere in the middle range of 15 digits. At this rate it may end up taking a whole year just to finish running this program. The code for the program is below: import java.lang.*; import java.math.*; public class FindFib { public static void main(String args[]) { long uLimit=9223372036854775807L; //long maximum value BigDecimal PHI=new BigDecimal(1D+Math.sqrt(5D)/2D); //Golden Ratio for(long a=1;a<=uLimit;a++) //Outer Loop, 1 to maximum for(long b=1;b<=a;b++) //Inner Loop, 1 to current outer { //Cube the numbers and add BigDecimal c=BigDecimal.valueOf(a).pow(3).add(BigDecimal.valueOf(b).pow(3)); System.out.print(c+" "); //Output result //Upper and lower limits of interval for Mobius test: [c*PHI-1/c,c*PHI+1/c] BigDecimal d=c.multiply(PHI).subtract(BigDecimal.ONE.divide(c,BigDecimal.ROUND_HALF_UP)), e=c.multiply(PHI).add(BigDecimal.ONE.divide(c,BigDecimal.ROUND_HALF_UP)); //Mobius test: if integer in interval (floor values unequal) Fibonacci number! if (d.toBigInteger().compareTo(e.toBigInteger())!=0) System.out.println(); //Line feed else System.out.print("\r"); //Carriage return instead } //Display final message System.out.println("\rDone. "); } } Now the use of BigDecimal and BigInteger was delibrate; I need them to get the necessary precision. Is there anything other than my variable types that I could change to gain better efficiency?

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  • Need help on nested loop of queries in php and mysql?

    - by mysqllearner
    Hi, I am trying to get do this: <?php $good_customer = 0; $q = mysql_query("SELECT user FROM users WHERE activated = '1'"); // this gives me about 40k users while($r = mysql_fetch_assoc($q)){ $money_spent = 0; $user = $r['user']; // Do queries on another 20 tables for($i = 1; $i<=20 ; $i++){ $tbl_name = 'data' . $i; $q2 = mysql_query("SELECT money_spent FROM $tbl_name WHERE user = '{$user}'"); while($r2 = mysql_fetch_assoc($q2)){ $money_spend += $r2['money_spent']; } if($money_spend > 1000000){ $good_customer += 1; } } } This is just an example. I am testing on localhost, for single user, it returns very fast. But when I try 1000, it takes forever, not even mentioned 40k users. Anyway to optimise/improve this code? EDIT: By the way, each of the others 20 tables has ~20 - 40k records

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  • Can I write functors using a private nested struct?

    - by Kristo
    Given this class: class C { private: struct Foo { int key1, key2, value; }; std::vector<Foo> fooList; }; The idea here is that fooList can be indexed by either key1 or key2 of the Foo struct. I'm trying to write functors to pass to std::find so I can look up items in fooList by each key. But I can't get them to compile because Foo is private within the class (it's not part of C's interface). Is there a way to do this without exposing Foo to the rest of the world? (note: I've got to run to a meeting. I'll be able to post more sample code in about a half hour.)

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  • Does anybody have any tips for managing polymorphic nested resources in Rails 3?

    - by Ryan
    in config/routes.rb: resources posts do resources comments end resources pictures do resources comments end I would like to allow for more things to be commented on as well. I'm currently using mongoid (mongomapper isn't as compatible with rails3 yet as I would like), and comments are an embedded resource (mongoid can't yet handle polymorphic relational resources), which means that I do need the parent resource in order to find the comment. Are there any elegant ways to handle some of the following problems: in my controller, I need to find the parent before finding the comment. if params[:post_id] parent = Post.find(params[:post_id] else if params[:picture_id] parent = Picture.find(params[:picture_id] end which is going to get messy if I start adding more things to be commentable also url_for([comment.parent,comment]) doesn't work, so I'm going to have to define something in my Comment model, but I think I'm also going to need to define an index route in the Comment model as well as potentially an edit and new route definition. There might be more issues that I have to deal with as I get further. I can't imagine I'm the first person to try and solve this problem, are there any solutions out there to make this more manageable?

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  • Rails show view of one model with form for adding one child - nested attributes vs seperate controll

    - by SWR
    I have a basic two tiered model structure: Articles - Comments with one Article having many comments. What is the best way to add a "Add a comment" form to the bottom of the Articles show page? nested_attributes is overkill as I don't want to be able to edit all of the comments on the page, just to add one more. Is the best way even with Rails 2.3 still to make a separate controller and embed a form_for pointing to the other controller into the Articles show view? If so, how do I get validation errors to return to the article display page? I don't want to make a separate comment page/view... thanks

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  • Handling async ASMX web service exceptions

    - by Andy
    Hi, I've developed silverlight client with makes async web services calls to a asmx web service. The problem is, I want to handle exceptions, so far as to be able to tell in the client application whether there was an exception in the webservice (and therefore will be logged local to the webservice) or whether there was a communication problem (i.e. the endpoint for the webservice was wrong). In testing both types of exceptions in my project I get the same generic exception: System.ServiceModel.CommunicationException: The remote server returned an error: NotFound. This exception is amazingly useless when an exception occured in the webservice as it clearly has been found. Is the presence of this generic error to do with security (not being allowed to see true errors)? It can't be the fact that I don't have debug strings as I'm running on a dev PC. Either way, my question is, what's the best way to handle async errors in a commercial silverlight application? Any links or ideas are most welcome! :) Thanks a lot! Andy.

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  • Handle exceptions with WPF and MVVM

    - by Jon Cahill
    I am attempting to build an application using WPF and the MVVM pattern. I have my Views being populated from my ViewModel purely through databinding. I want to have a central place to handle all exceptions which occur in my application so I can notify the user and log the error appropriately. I know about Dispatcher.UnhandledException but this does not do the job as exception that occur during databinding are logged to the output windows. Because my View is databound to my ViewModel the entire application is pretty much controlled via databinding so I have no way to log my errors. Is there a way to generically handle the exceptions raised during databinding, without having to put try blocks around all my ViewModel public's? Example View: <Window x:Class="Test.TestView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="TestView" Height="600" Width="800" WindowStartupLocation="CenterScreen"> <Window.Resources> <BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" /> </Window.Resources> <StackPanel VerticalAlignment="Center"> <Label Visibility="{Binding DisplayLabel, Converter={StaticResource BooleanToVisibilityConverter}}">My Label</Label> </StackPanel> </Window> The ViewModel: public class TestViewModel { public bool DisplayLabel { get { throw new NotImplementedException(); } } } It is an internal application so I do not want to use Wer as I have seen previously recommended.

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  • Returning Meaningful Exceptions from a WCF Project

    - by MissingLinq
    I am pretty new to WCF in general. What little experience I have comes from using fairly simple .SVC services in ASP.NET web applications. I tried experimenting with using a WCF Project for the first time, and ran into a major show-stopper. As I’m sure most are aware, for some strange reason, in a web application in which the customErrors mode is set to On , services (both .ASMX and .SVC) will not return exception details to the client. Instead, the exception and stack trace are emptied, and the message always reads “There was an error processing the request”, which is not at all helpful. When services are directly hosted inside the web application itself, it’s easy to work around this restriction by placing the services in a dedicated folder, and setting for that folder. However, I’m running into this same issue with exceptions not being returned from services that live in a separate WCF project. Thing is, I don’t know how to work around that. In a nutshell: I need to get my WCF Project services to bubble REAL exceptions to the client – or at least, the original exception message, instead of “There was an error processing the request”.

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  • Logging exceptions during bean injection

    - by Marc W
    I think this is a pretty basic question, but after Googling around I can't seem to find the answer. What I need is a way to log some custom output with log4j during Spring bean construction. I have a factory class called ResponderFactory (being used as an instance factory in Spring) with a factory method that can throw 2 different types of exception. public CollectorResponder collectorResponder(String inputQueueName) throws ConfigurationException, BrokerConnectionException {} Now, normally I could wrap a call to this method in a try-catch block with 2 catch clauses to handle the logging situations for each of the exceptions. However, if I'm using Spring to inject this CollectorResponder, created with the factory, into another class I don't see how this is possible. <bean id="responderFactory" class="com.package.ResponderFactory"> <constructor-arg index="0" ref="basicDispatcher" /> <constructor-arg index="1" value="http://localhost:9000" /> </bean> <bean id="collectorResponder" class="com.package.CollectorResponder" factory-bean="responderFactory" factory-method="collectorResponder"> <constructor-arg value="collector.in" /> </bean> <bean id="collectorConsumer" class="com.package.CollectorConsumer"> <constructor-arg ref="collectorResponder" /> </bean> Again, I want to catch these exceptions when the collectorResponder bean is instantiated. Right now I'm dealing with this is CollectorConsumer when I instantiate using new CollectorResponder(...). Is there any way I can do this?

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  • Exiting from the Middle of an Expression Without Using Exceptions

    - by Jon Purdy
    Is there a way to emulate the use of flow-control constructs in the middle of an expression? Is it possible, in a comma-delimited expression x, y, for y to cause a return? Edit: I'm working on a compiler for something rather similar to a functional language, and the target language is C++. Everything is an expression in the source language, and the sanest, simplest translation to the destination language leaves as many things expressions as possible. Basically, semicolons in the target language become C++ commas. In-language flow-control constructs have presented no problems thus far; it's only return. I just need a way to prematurely exit a comma-delimited expression, and I'd prefer not to use exceptions unless someone can show me that they don't have excessive overhead in this situation. The problem of course is that most flow-control constructs are not legal expressions in C++. The only solution I've found so far is something like this: try { return x(), // x(); (1 ? throw Return(0) : 0); // return 0; } catch (Return& ret) { return ref.value; } The return statement is always there (in the event that a Return construct is not reached), and as such the throw has to be wrapped in ?: to get the compiler to shut up about its void result being used in an expression. I would really like to avoid using exceptions for flow control, unless in this case it can be shown that no particular overhead is incurred; does throwing an exception cause unwinding or anything here? This code needs to run with reasonable efficiency. I just need a function-level equivalent of exit().

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  • Timeout Exceptions

    - by Raihan Jamal
    This is my below code, I am confuse why this thing is happening. In this code getLocationByIpTimeout is a method in which I am passing two things- one is the ip address and second is the timeout. So I will get the timeout exception if the response is not getting back in under 5 ms. So when I ran this below code, I am getting few timeout exceptions but the most important thing that I am confuse is if I am getting timeout exceptions (time taken to get the response is greater than 5 ms) then why the program is entering in that if loop in which I am having difference 5. What can be the possible reason for this? It is because of catch block?? Any suggestions will be appreciated. long runs =10000; long difference = 0; while(runs > 0) { String ipAddress = generateIPAddress(); long start_time = System.nanoTime(); try { resp = PersonalizationGeoLocationServiceClientHelper.getLocationByIpTimeout(ipAddress, 5); } catch (TimeoutException e) { System.out.println("Timeout Exception"); } long end_time = System.nanoTime(); if(resp == null || (resp.getLocation() == null)) { difference = 0; } else if(resp.getLocation() != null) { difference = (end_time - start_time)/1000000; } if(difference> 5) { System.out.println("Debug"); } }

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  • Dynamic group membership to work around no nested security group support for Active Directory

    - by Bernie White
    My problem is that I have a number of network administration applications like SAN switches that do not support nested groups from Active Directory Domain Services (AD DS). These legacy administration applications use either LDAP or LDAPS. I am fairly sure I can use Active Directory Lightweight Directory Services (AD LDS) and possibly Windows Authorization Manager to work around this issue; however I am not really sure where to start. I want to end up with: A single group that can be queried over LDAP/LDAPS for all it’s direct members LDAP proxy for user name and password credentials to AD DS Easy way to admin the group, ideally the group would aggregate the nested membership in AD DS. a native solution using freely available components from the Windows stack. If you have any suggestions or solutions that you have previously used to solve this issue please let me know.

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  • gnu screen - mouse does not work in nested screen session

    - by Matthew
    I started a screen session inside another screen session, both on my local machine. This is using cygwin, but I don't think it matters. I have tried via ssh to a real unix machine but the behaviour is the same. Mouse works great in the first screen session, I'm able to open vim with :set mouse=a and I can click to move the cursor or switch tabs, and the mouse wheel scrolls. But in the nested session it does not work, mouse is only useful for selecting terminal text that gets put in the clipboard, but is not able to interact with vim. I want this to work because I usually work with a local screen session, then ssh to a remote server and have a remote screen session running too (hence the nesting) and I like to scroll swiftly in vim by using the mouse wheel. Can anyone tell me why the mouse works in the first layer of screen but not in the second, nested screen session, and how I can make it work? Thanks in advance, Matthew

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  • How to add exceptions to apache reverse proxy rules

    - by Tania
    I am trying to set a Apache reverse proxy so that requests get proxyed to another application running on 8080. However, I want some directories to be directly served rather than forwarded to proxy. What I want is: http://localhost/ - http:// localhost:8080/myapp http:// localhost/images - /var/www/html/images http:// localhost/anything-else - http:// localhost:8080/myapp/anyhthing-else My current httpd.conf is ProxyRequests Off ProxyTimeout 600 ProxyPreserveHost On ProxyPass / http:// localhost:8080/ ProxyPassReverse / http:// localhost:8080/ RewriteEngine On RewriteRule ^/(.*) http:// localhost:8080/VirtualHostBase/http/%{SERVER_NAME}:80/myapp/VirtualHostRoot/$1 [L,P] What configuration should I do to make the local path exception to work? Thank you, Tania

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  • MediaWiki migrated from Tiger to Snow Leopard throwing an exceptions

    - by Matt S
    I had an old laptop running Mac OS X 10.4 with macports for web development: Apache 2, PHP 5.3.2, Mysql 5, etc. I got a new laptop running Mac OS X 10.6 and installed macports. I installed the same web development apps: Apache 2, PHP 5.3.2, Mysql 5, etc. All versions the same as my old laptop. A Mediawiki site (version 1.15) was copied over from my old system (via the Migration Assistant). Having a fresh Mysql setup, I dumped my old database and imported it on the new system. When I try to browse to mediawiki's "Special" pages, I get the following exception thrown: Invalid language code requested Backtrace: #0 /languages/Language.php(2539): Language::loadLocalisation(NULL) #1 /includes/MessageCache.php(846): Language::getFallbackFor(NULL) #2 /includes/MessageCache.php(821): MessageCache->processMessagesArray(Array, NULL) #3 /includes/GlobalFunctions.php(2901): MessageCache->loadMessagesFile('/Users/matt/Sit...', false) #4 /extensions/OpenID/OpenID.setup.php(181): wfLoadExtensionMessages('OpenID') #5 [internal function]: OpenIDLocalizedPageName(Array, 'en') #6 /includes/Hooks.php(117): call_user_func_array('OpenIDLocalized...', Array) #7 /languages/Language.php(1851): wfRunHooks('LanguageGetSpec...', Array) #8 /includes/SpecialPage.php(240): Language->getSpecialPageAliases() #9 /includes/SpecialPage.php(262): SpecialPage::initAliasList() #10 /includes/SpecialPage.php(406): SpecialPage::resolveAlias('UserLogin') #11 /includes/SpecialPage.php(507): SpecialPage::getPageByAlias('UserLogin') #12 /includes/Wiki.php(229): SpecialPage::executePath(Object(Title)) #13 /includes/Wiki.php(59): MediaWiki->initializeSpecialCases(Object(Title), Object(OutputPage), Object(WebRequest)) #14 /index.php(116): MediaWiki->initialize(Object(Title), NULL, Object(OutputPage), Object(User), Object(WebRequest)) #15 {main} I tried to step through Mediawiki's code, but it's a mess. There are global variables everywhere. If I change the code slightly to get around the exception, the page comes up blank and there are no errors (implying there are multiple problems). Anyone else get Mediawiki 1.15 working on OS X 10.6 with macports? Anything in the migration from Tiger that could cause a problem? Any clues where to look for answers?

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  • Separate zone exceptions for each view in BIND

    - by Stefan M
    Problem: Separate zones by query source network and return different records for LAN clients compared to WAN clients. I've implemented this at home on a small alix router with Bind 9.4. One view called "lan" and one view called "wan". The "lan" view had just the root.hints file and one zone. The "wan" view had many other zones, including a copy of the one zone from the "lan" view, but with different records. Querying domain1.tld from the LAN would give me local records. Querying domain1.tld from the WAN would give me external records. Querying domain2.tld from the LAN would give me the same records as from the WAN as it only existed in the WAN view. Now I'm trying to re-implement this on a larger scale and suddenly my view is unable to query anything outside itself. This is natural according to the bind-users list and they suggest I copy all my views into my LAN view. I'm hoping someone here has a better solution because that means I'll have to copy, and maintain, thousands of zone files in multiple views. This is unfeasible. My configuration at home resembles this. acl lanClients { 192.168.22.0/24; 127.0.0.1; }; view "intranet" { match-clients { lanClients; }; recursion yes; notify no; // Standard zones // zone "." { type hint; file "etc/root.hint"; }; zone "domain1.tld" { type master; file "intranet/domain1.tld"; }; }; view "internet" { match-clients { !localnets; any; }; recursion no; allow-transfer { slaveDNS; }; include "master.zones"; }; Requests from the LAN for domain1.tld give local records, requests from the WAN give remote records. This works fine both at home and in my new Bind 9.7 on a larger scale. The difference is that at home I have somehow managed to make my LAN get remote records from domains in master.zones, without specifying those zones as duplicates in the "intranet" view. Trying this on a larger scale with Bind 9.7 I get no results at all except for the zones specified in the view. What am I missing? I've tried the same configuration for Bind 9.7.

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  • x86 exceptions and flags

    - by b-gen-jack-o-neill
    Hi, please, I know that when you for example divide by zero, the aproptiate flag is set in CPU flag register. But today I read that there are special interrupt vectors (I think the first 16 in IVT) that are used for such conditions like dividing by zero. So, what I want to ask is, does any situation that couses change som flag also triggers apropriate interrupt? Becouse in school, we used conditional jumps that checks wheather carry flag has been set or not, and I don´t remember there was some interrupt triggerd by that. So I am pretty confused now.

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  • SSLVerifyClient optional with location-based exceptions

    - by Ian Dunn
    I have a site that requires authentication in order to access certain directories, but not others. (The "directories" are really just rewrite rules that all pass through /index.php) In order to authenticate, the user can either login with a standard username/password, or submit a client-side x509 certificate. So, Apache's vhost conf looks something like this: SSLCACertificateFile /etc/pki/CA/certs/redacted-ca.crt SSLOptions +ExportCertData +StdEnvVars SSLVerifyClient none SSLVerifyDepth 1 <LocationMatch "/(foo-one|foo-two|foo-three)"> SSLVerifyClient optional </LocationMatch> That works fine, but then large file uploads fail because of the behavior documented in bug 12355. The workaround for that is to set SSLVerifyClient require (or optional) as the default, so now the conf looks like this SSLCACertificateFile /etc/pki/CA/certs/redacted-ca.crt SSLOptions +ExportCertData +StdEnvVars SSLVerifyClient optional SSLVerifyDepth 1 <LocationMatch "/(bar-one|bar-two|bar-three)"> SSLVerifyClient none </LocationMatch> That fixes the upload problem, but the SSLVerifyClient none doesn't work for bar-one, bar-two, etc. Those directories are still prompted to present a certificate. Additionally, I also need the root URL to accessible without the user being prompted for a certificate. I'm afraid that will cancel out the workaround, though.

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  • Suhosin per-URL exceptions?

    - by STATUS_ACCESS_DENIED
    I am using SimpleID as my OpenID provider and it turns out that if I log on via pages like those on StackExchange, one of the parameters of the GET request gets dropped by Suhosin. The name of the variable is s and I presume it's responsible for the "return to URL" part after login. All of this is not a problem as long as I am already logged into SimpleID from before. However, as soon as the site on which I want to log in via OpenID ends up at the login screen of SimpleID, the redirect back to the site I came from does not work anymore due to the dropped variable. Is there a method to configure either on a per-virtual-host or per-URL basis to ignore the maximum length for GET requests with a parameter s exceeding the (globally) set limit? I'm using Apache 2.2, so I was wondering whether a mechanism similar to setting the PHP ini variables from within the server configuration exists for Suhosin.

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  • iptables rules for DNS/Transparent proxy with ip exceptions

    - by SlimSCSI
    I am running a router (A Netgear WNDR3700 if that matters) with dd-wrt. For content filtering I am using OpenDNS. I wanted to make sure a user could not bypass OpenDNS by putting in their own name servers, so I have a rule to catch all DNS traffic. iptables -t nat -A PREROUTING -i br0 -p all --dport 53 -j DNAT --to $LAN_IP I did have one computer on the network I wanted to allow past OpenDNS filters. On that machine I manually set the name servers, and created another rule to allow it to pass iptables -t nat -I PREROUTING -i br0 -s 192.168.1.2 -j ACCEPT This worked well. Today, I installed a transparent proxy (squid) on the router and added these rules: iptables -t nat -A PREROUTING -i br0 -s $LAN_NET -d $LAN_NET -p tcp --dport 80 -j ACCEPT iptables -t nat -A PREROUTING -i br0 -s ! $PROXY_IP -p tcp --dport 80 -j DNAT --to $PROXY_IP:$PROXY_PORT iptables -t nat -I POSTROUTING -o br0 -s $LAN_NET -d $PROXY_IP -p tcp -j SNAT --to $LAN_IP iptables -I FORWARD -i br0 -o br0 -s $LAN_NET -d $PROXY_IP -p tcp --dport $PROXY_PORT -j ACCEPT This also works, however the 192.168.1.2 address does not get routed through squid. How can I have 192.168.1.2 (and maybe others in the future) by-pass the port 53 rules, but not the port 80 rules?

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