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  • why does backbone not send the delete?

    - by Nippysaurus
    I have a very basic backbone (sample) application which just creates and destroys model items. When the model is created the object is persisted with a POST to the web server, but when the model is destroyed there is no DELETE sent to the server? Any idea why this might be? very basic model: window.User = Backbone.Model.extend({ urlRoot: 'users' }); my test code just to create and delete the model: var model = null; $(".add").click(function(){ if (model == null) { model = new window.User; model.set({name: 'meeee'}); model.save(); } }); $(".remove").click(function(){ if (model != null) { model.destroy(); } }); The JSON response when creating the model seems good too:

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  • @Resource annotated member not injected - bad code or bug?

    - by Brabster
    I am using an @Resource annotation in a class instantiated in a ServletContextListener's contextInitialized(...) method, but the member is always null. Here's my sample code. Listener: public void contextInitialized(ServletContextEvent sce) { System.err.println("In contextInitialised"); new ResourceListenerTargetTest().executeMe(); } ResourceListenerTargetTest: @Resource(name="MyJDBCResource") private DataSource source; public void executeMe() { /*try { InitialContext ictx = new InitialContext(); source = (DataSource)ictx.lookup("java:comp/env/MyJDBCResource"); } catch (NamingException e) { e.printStackTrace(); }*/ System.err.println("source is " + source); } If I switch the comments and run the manual resource lookup, it works fine. Should the @Resource annotation work like this, when used in a contextInitalized method? Appserver is WAS 7.0.0.5, if it should work then I guess it's a bug? Can anyone confirm?

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  • New/strange Java "try()" syntax?

    - by Ali
    While messing around with the custom formatting options in Eclipse, in one of the sample pieces of code, I say code as follows: /** * 'try-with-resources' */ class Example { void foo() { try (FileReader reader1 = new FileReader("file1"); FileReader reader2 = new FileReader("file2")) { } } } I've never seen try used like this and I've been coding in Java for 9 years! Does any one know why you would do this? What is a possible use-case / benefit of doing this? An other pieces of code I saw, I thought was a very useful shorthand so I'm sharing it here as well, it's pretty obvious what it does: /** * 'multi-catch' */ class Example { void foo() { try { } catch (IllegalArgumentException | NullPointerException | ClassCastException e) { e.printStackTrace(); } } }

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  • iPhone simple commercial barcode reader via camera

    - by user347635
    Hey all, I've done some iPhone programming (safely midlevel) and now a requirement has come up for us to write a barcode reader that uses the iPhone camera. This is not for shopping or the general public but will be for internal use. My first thought was to simply programatically take a picture, upload it to server, and have a web service or something similar handle the heavy lifting of extracting the numbers out of the bar code. However I recently installed some apps already available on the iPhone that read bar codes, refer you to shopping sites, etc. and they seem to use the video camera to identify barcodes and extract the numbers. Does anyone know how this is being done or could point me to some open source or sample code?

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  • Hudson jobs won't call javac?

    - by Dissonant
    Hi, I have just set up Hudson on my server. For some reason, my build will not call javac to compile my builds...? I have set the path to the JDK in the Manage Hudson area, and it seems to recognise it (doesn't give me a warning). Is there something else I'm supposed to do? Here's a sample console output of one of my jobs (note how javac isn't called at all): Started by user admin Checking out svn+ssh://myhost.com/Project1 A /src/Program.java A build.xml U At revision 119 no change for svn+ssh://myhost.com/Project1 since the previous build Finished: SUCCESS

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  • Help with a MySQL SELECT WHERE Clause

    - by Dr. DOT
    A column in my table contains email addresses. I have a text string that contains the a few usernames of email addresses separated by commas. I can make text sting into an array if necessary to get my SELECT WHERE clause to work correctly. Text string search argument is 'bob,sally,steve' I want to produce a WHERE clause that only returns rows where the username portion of the email address in the table matches one of the usernames in my text string search argument. Thus a row with [email protected] would not be returned but [email protected] would be. Does anyone have a WHERE clause sample that produces this result? Thanks.

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  • Storing CLLocationCoordinates2D in NSMutableArray

    - by Amarsh
    After some searching, I got the following solution : ref: http://stackoverflow.com/questions/1392909/nsmutablearray-addobject-with-mallocd-struct CLLocationCoordinate2D* new_coordinate = malloc(sizeof(CLLocationCoordinate2D)); new_coordinate->latitude = latitude; new_coordinate->longitude = longitude; [points addObject:[NSData dataWithBytes:(void *)new_coordinate length:sizeof(CLLocationCoordinate2D)]]; free(new_coordinate); And access it as: CLLocationCoordinate2D* c = (CLLocationCoordinate2D*) [[points objectAtIndex:0] bytes]; However, someone claims that there is a memory leak here? Can anyone suggest me where is the leak and how to fix it. Further, is there a better way of storing a list of CLLocationCoordinate2D in NSMutableArray? Please give sample code since I am an Objective C newbie.

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  • dismissViewControllerAnimated completion block presenter view and modal view flow

    - by Patricia LaRue
    I did find an answer to this title and I did do a little research but I'm still not getting the flow. Here is what I want to happen: 1) click a button on the presenter view to open a modal view. 2) retrieve some value and click a button to close the modal view....sending the value to the presentor view and execute a method. I get that this works like a callback but I still can't figure out where to put the callback stuff. So, how exactly do I do this? A) In the presentViewController completion block, should I include the presenter view method to execute when modal view is completed? Or: B) In the modal view's dismissViewControllerAnimated completion block, should I include the presenter view method to execute when modal view is completed? Can somebody help me with some sample code? Or at least help me get the flow of which block to put the code in? Thank you, P

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  • Decoding and caching json every 60 minutes

    - by Gary
    Hi, How do I do this on a php webpage? I want to get and decode a json string and display the results as html on my page, however, I don't want it hotlinking back to the source. If I could write the decoded string to a txt file say weather.txt on the server and keep the html formatting and do it so that the page won't fetch the json script until 60 minutes has passed since the last time it was fetched regardless of how many times the page is opened during that 60 minute period and the weather.txt is viewed. All I can come up with is a simple script that hotlinks, everything else I have tried simply failed. $file = file_get_contents('http://sample.com/weather'); $out = (json_decode($file)); echo $out-mainText; Will appreciate any help with this.

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  • EllipseGeometry is not rendering in Silverlight

    - by Mark Nelson
    I'm trying to draw a circle in WP7 Silverlight using EllipseGeometry instead of Ellipse. The sample XAML in MSDN does not display anything on the canvas in Visual Studio. If I run the app, it does display in the emulator. <Canvas> <Path Fill="Gold" Stroke="Black" StrokeThickness="1"> <Path.Data> <EllipseGeometry Center="50,50" RadiusX="50" RadiusY="50" /> </Path.Data> </Path> </Canvas> Any ideas what is happening?

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  • How To? Use an Expression Tree to call a Generic Method when the Type is only known at runtime.

    - by David Williams
    Please bear with me; I am very new to expression trees and lambda expressions, but trying to learn. This is something that I solved using reflection, but would like to see how to do it using expression trees. I have a generic function: private void DoSomeThing<T>( param object[] args ) { // Some work is done here. } that I need to call from else where in my class. Now, normally, this would be be simple: DoSomeThing<int>( blah ); but only if I know, at design time that I am working with an int. When I do not know the type until runtime is where I need the help. Like I said, I know how to do it via reflection, but I would like to do it via expression trees, as my (very limited) understanding is that I can do so. Any suggestions or points to sites where I can get this understanding, preferably with sample code?

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  • Filtering accelerometer data noise

    - by Faiz
    Hi How do I filter noise of the accelerometer data in Android? I would like to create a high-pass filter for my sample data so that I could eliminate low frequency components and focus on the high frequency components. I have read that Kalman filter might be the best candidate for this, but how do I integrate or use this method in my application which will mostly written in Android Java? or can it be done in the first place? or through Android NDK? Is there by any chance that this can be done in real-time? Any idea will be much appreciated. Thank you!

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  • DOs and DON'Ts of a technical presentation

    - by TG
    I am preparing a technical presentation for my team. Audience : Our team Topic : Introduction to a new technology So I want to know about the primary necessary things for a good technical presentation and also DOs and DON'Ts for the same. some of my concerns are, 1. Whether to have slides or not (if needed then how many of them) 2. Coding a sample during presentation or preparing it before going for the presentation 3. Maximum duration of an technical presentation What is your thoughts on technical presentations from your past experience either as a presenter or as a listener.

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  • Convert 12hour time to 24Hour time

    - by RwardBound
    I have hourly weather data. I've seen the function examples from here: http://casoilresource.lawr.ucdavis.edu/drupal/node/991 I'm altering the code to account for airport data, which has a different URL type. Another issue with the airport weather data is that the time data is saved in 12 hour format. Here is a sample of the data: 14 10:43 AM 15 10:54 AM 16 11:54 AM 17 12:07 PM 18 12:15 PM 19 12:54 PM 20 1:54 PM 21 2:54 PM Here's what I attempted: (I see that using just 'PM' isn't careful enough because any times between 12 and 1 pm will be off if they go through this alg) date<-Sys.Date() data$TimeEST<-strsplit(data$TimeEST, ' ') for (x in 1:35){ if('AM' %in% data$TimeEST[[x]]){ gsub('AM','',data$TimeEST[[x]]) data$TimeEST[[x]]<-str_trim(data$TimeEST[[x]]) data$TimeEST[[x]]<-str_c(date,' ',data$TimeEST[x],':',data$TimeEST[2]) } else if('PM' %in% data$TimeEST[[x]]){ data$TimeEST[[x]]<-gsub('PM', '',data$TimeEST[[x]]) data$TimeEST[[x]]<-strsplit(data$TimeEST[[x]], ':') data$TimeEST[[x]][[1]][1]<-as.integer(data$TimeEST[[x]][[1]][1])+12 data$TimeEST[[x]]<-str_trim(data$TimeEST[[x]][[1]]) data$TimeEST[[x]]<-str_c(date, " ", data$TimeEST[[x]][1],':',data$TimeEST[[x]][2]) } } Any help?

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  • Kohana v2 - problem with routes

    - by yoda
    Hi, I'm attempting to set some custom routes in Kohana v2. What I'm looking for is some method that allow the system to : follow a pre-defined name to it's related root; redirect the non-matched url's into another controller; To give you a more clear view over the problem, I want the first url parameter to be associated to certain pages (contacts, home, services, about us, etc), and those urls who doesn't match the previous pages would be routed into a controller called products, in order to determine if the first url parameter regards a product name. Here's a sample of what I have : $config['_default'] = 'home'; $config['([a-zA-Z]+)'] = 'products/showcat/$1'; What am I missing here? Thanks in advance!

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  • Cannot execute cut-n-paste VBScripts

    - by IcedDante
    I have been going mad trying to figure out why my scripts weren't working, until I started copying and pasting sample source code directly from a few websites only to have it fail there as well. I am getting the following error in my VBScripts: C:\temp\vbs\script.vbs(19, 53) Microsoft VBScript compilation error: Expected statement' For a line of code that looks like this: wdoc.Application.Selection.Find.Execute Replace:=wdReplaceAll This is interfacing with Microsft Word in Office 2007 to conduct a search and replace. Index 53 point directly to the := part of the assignment. Since this type of syntax doesn't work on my machine and I am using it from several websites, I was wondering if the cscript.exe I use is out of date. Am I not calling cscript properly?

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  • How to use Dbmapper to generate JPA entity classes from DB script?

    - by Sourabh
    I am tring to use http://code.google.com/p/dbmapper/ and I am not sure how to run it frmo the command prompt. The sample usesege is like below Usage: com.moonspider.dbmap.GenerateConfig -type (-t) [String] The type to generate, either 'jpa' or 'gorm' (experimental) (jpa) -destinationDirectory (-d) [String] Destination directory -url [String] The url of the database -pkg (-package) [String] The target package () -user (-u) [String] Database user (sa) -password (-p) [String] Database password () -globalExtends (-extends) [String] Class for all Java classes to extend -globalImplements (-implements) [String] Class for all Java classes to implement -driver [String] Database drive class -extension (-ext) [String] File extension for the generated code (java) -hibernate [String] Generate hibernate.cfg.xml to this directory -jaxb [flag] Enable xml binding generation -schema [String] Specify the non-default schema to use How to run com.moonspider.dbmap.GenerateConfig from command line ?

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  • htpasswd, secure specific files in zend framework

    - by AKFourSeven
    Hi I have been bashing my head against the wall with this riddle and cannot find the way to solve this. I would like to secure couple of files to restrict access to certain pages but my attempts so far are unsuccessful. I do not want to use Zend Auth as it is a very small web site doing simple stuff. Here is a sample of what I have done: AuthUserFile /path/to/my/.htpasswd AuthName "Admin Restriction" AuthType Basic <Files file.phtml> require valid-user </Files> Is there any way to achieve this ?

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  • How to copy subdirectories of multiple un-named directories

    - by Scrubbie
    Using just Ant, I want to copy subdirectories of some top-level directories but the names of top-level directories can change so I need Ant to programatically determine which directories to copy. In other words, given the sample directory structure below, copy the contents of each ./<projectX>/bin directory to ./bin. bin project1 \-- bin \-- com \-- name \-- dir1 \-- file1.class \-- file2.class \-- file3.class \-- dir2 \-- file4.class \-- file5.class project2 \-- bin \-- com \-- name \-- dir3 \-- file6.class \-- file7.class \-- file8.class project3 \-- bin \-- com \-- name \-- dir4 \-- file9.class \-- dir5 \-- file10.class \-- file11.class And the end result would be a bin directory that looks like this: bin \-- com \-- name \-- dir1 \-- file1.class \-- file2.class \-- file3.class \-- dir2 \-- file4.class \-- file5.class \-- dir3 \-- file6.class \-- file7.class \-- file8.class \-- dir4 \-- file9.class \-- dir5 \-- file10.class \-- file11.class I've tried <copy todir="${basedir}/bin"> <fileset dir="${basedir}"> <include name="**/bin/*"/> <exclude name="bin"/> </fileset> </copy> but that includes the projectX/bin directories underneath the top-level bin directory.

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  • Implications of Fulltext Search over many columns

    - by Alex
    Hello, I have a really wide table which includes separate columns for billing address, shipping address, primary address, names, aliases etc. (I can't normalize this table further, and that's not the question here anyways). I'm implementing SQL Server fulltext search, and I'm wondering whether I should limit the search ability to just the primary fields (primary address and names for example), or if I can extend the search ability across all columns without occurring too much of a performance or memory penalty. I've done some basic testing with 10,000 sample rows and it's quite fast but I don't have much experience with fulltext indexing, especially its dictionary internals, so I don't know if the index is going to grow over time, or if there is anything else to consider. Thoughts?

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  • removing a line from a text file?

    - by Blackbinary
    Hi all. I am working with a text file, which contains a list of processes under my programs control, along with relevant data. At some point, one of the processes will finish, and thus will need to be removed from the file (as its no longer under control). Here is a sample of the file contents (which has enteries added "randomly"): PID=25729 IDLE=0.200000 BUSY=0.300000 USER=-10.000000 PID=26416 IDLE=0.100000 BUSY=0.800000 USER=-20.000000 PID=26522 IDLE=0.400000 BUSY=0.700000 USER=-30.000000 So for example, if I wanted to remove the line that says PID=26416.... how could I do that, without writing the file over again? I can use external unix commands, however I am not very familiar with them so please if that is your suggestion, give an example. Thanks!

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  • Unable to implement JMS using ApacheMQ

    - by Galaxin
    Iam trying to implement a simple JMS code in eclipse using ApacheMQ. I have downloaded the ApacheMQ from apache.org and sample JMS sender from SimpleQueueSender and receiver from SimpleQueueReceiver respectively. Now how should i execute this code? I have already gone through all related tutorials but couldnot find answers to these questions. Please suggest solutions on What all are the changes to be done regarding classpaths,settings after the activemq is started as below INFO | jetty-7.1.6.v20100715 INFO | ActiveMQ WebConsole initialized. INFO | Initializing Spring FrameworkServlet 'dispatcher' INFO | ActiveMQ Console at http://0.0.0.0:8161/admin INFO | ActiveMQ Web Demos at http://0.0.0.0:8161/demo INFO | RESTful file access application at http://0.0.0.0:8161/fileserver INFO | Started [email protected]:8161 how to proceed next? 2.Should this server be added in the eclipse as a new server and then the program is run on that server? 3.Can these programs be run from eclipse or should they executed from a separate console?

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  • paypal integration according to dynamic choices

    - by Pankaj Khurana
    Hi, I want to integrate paypal with my website. I have studied the documentation available on paypal website. My requirement is A user selects a category, based on category course is populated,user selects course and discount. I want the user to pay through paypal according to the course selected. Also the data should be inserted into a table after successfull payment. I have checked sample code also but i am unable to figure out how to accomplish this task ie how to make it dynamic according to the user choice. I think ipn would be used but not sure. Plese help Thanks

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  • Strange Java Coding??? Class in class???

    - by poeschlorn
    Hi guys, I got a question about Java coding in general... In some sample codes there are methods and classes declared WITHIN other methods and/or classes.... I've never heard/red about this...what effect does this kind of programming have? Wouldn't it be better to write down classes in a seperate file and methods side by side and not within each other (like every book tells you)? What are the advantages and disadvantages of this kind of programming? Here's an example of what I mean: Handler mHandler = new Handler() { public void handleMessage(android.os.Message msg) { TextView textView = (TextView) findViewById(R.id.description); textView.setText(mRoad.mName + " " + mRoad.mDescription); MapOverlay mapOverlay = new MapOverlay(mRoad, mapView); List<Overlay> listOfOverlays = mapView.getOverlays(); listOfOverlays.clear(); listOfOverlays.add(mapOverlay); mapView.invalidate(); }; };

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  • PHP write file... need help

    - by Jordan Pagaduan
    <?php $title = $_POST['title']; $filename = $title , ".php"; $fh = fopen($filename, 'w') or die ("can't open file"); $stringData = $title; fwrite($fh, $stringData); $stringData = $blog; fwrite($fh, $stringData); fclose($fh); ?> This is only a sample. What is the correct code for that?

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