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Articles indexed in March 2010

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  • Debugging FLEX/AS3 memory leaks

    - by Scott Evernden
    I have a pretty big Flex & Papervision3D application that creates and destroys objects continually. It also loads and unloads SWF resource files too. While it's running the SWF slowly consumes memory til about 2GB when it croaks the player. Obviously I am pretty sure I let go of reference to instances I no longer want with expectation the GC will do its job. But I am having a heck of a time figuring out where the problem lies. I've tried using the profiler and its options for capturing memory snapshots, etc - but my problem remains evasive. I think there are known problems using debug Flash player also? But I get no joy using the release version either. How do you go about tracking down memory leak problems using FLEX/AS3 ? What are some strategies, tricks, or tools you have used to locate consumption

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  • Extending MySQLi

    - by FRKT
    Hello, I've run into problems extending the MySQLi class. It won't let me add any properties. class MySQLii extends MySQLi { public $database; public function MySQLii($host, $username, $password, $database){ // Initialize MySQLi parent::MySQLi($host, $username, $password, $database); // Save database name $this->database = $database; } } $mysqlii = new MySQLii('localhost', 'root', 'password', 'database'); var_dump($mysqlii); object(MySQLii)#1 (17) { ["affected_rows"]= int(0) ["client_info"]= string(48) "mysqlnd 5.0.5-dev - 081106 - $Revision: 289630 $" ["client_version"]= int(50005) ["connect_errno"]= int(0) ["connect_error"]= NULL ["errno"]= int(0) ["error"]= string(0) "" ["field_count"]= int(0) ["host_info"]= string(42) "MySQL host info: Localhost via UNIX socket" ["info"]= NULL ["insert_id"]= int(0) ["server_info"]= string(6) "5.1.44" ["server_version"]= int(50144) ["sqlstate"]= string(5) "00000" ["protocol_version"]= int(10) ["thread_id"]= int(4019) ["warning_count"]= int(0) } Note the absence of the database property I added in the MySQLii constructor. Am I missing something?

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  • Computed column should result to string

    - by strakastroukas
    Here is a snap of my database. Both col1 and col2 are declared as int. My ComputedColumn currently adds the Columns 1 and 2, as follows... col1 col2 ComputedColumn 1 2 3 4 1 5 Instead of this, my ComputedColumn should join the columns 1 and 2 (includimg the '-' character in the middle) as follows... col1 col2 ComputedColumn 1 2 1-2 4 1 4-1 So, what is the correct syntax?

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  • How to get rid of Internet Explorer 7 reloading on fragment change

    - by Philippe Beaudoin
    I have an anchor <a href="#!admin">General</a> somewhere in my page. Clicking this in any browser but IE7 (haven't tried IE6) causes no page reload, as expected. However, under IE7 it reloads the page as soon as it's clicked. The strangest thing is that I have the exact same anchor elsewhere in the page and it causes no reload. The only difference I can see between these is a slight difference in style, and the fact that the faulty anchor is deeply nested in divs, where the other is closer to the top. My questions: Is this a known bug with IE7? If so, is there any work around? If not, any clue as to what might be going wrong? Edit: If you want to see this yourself, go to http://filouguestbook.appspot.com/#!main sign-in with a google account and click on the Settings link the the top bar. Switch between the General and Accounts pages, the app will reload. From the Accounts page, click on Settings in the top bar, this will switch tab but not reload!

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  • DirectionsDistance in google maps API v3

    - by Yawn
    Hey, I'm trying to work out how to use this to get the distance from the successful directions: http://code.google.com/apis/maps/documentation/v3/reference.html#DirectionsDistance This is the code I have so far: var googleMaps = { // HTML Nodes fromInput: google_maps_from, toInput: google_maps_to, // API Objects dirService: new google.maps.DirectionsService(), dirRenderer: new google.maps.DirectionsRenderer(), map: null, showDirections: function(dirResult, dirStatus) { if (dirStatus != google.maps.DirectionsStatus.OK) { //Here we'll handle the errors a bit better :P alert('Directions failed: ' + dirStatus); return; } else { //Get the distance here //onGDirectionsLoad(); } // Show directions googleMaps.dirRenderer.setMap(googleMaps.map); googleMaps.dirRenderer.setPanel(document.getElementById("directions")); googleMaps.dirRenderer.setDirections(dirResult); }, getSelectedTravelMode: function() { return google.maps.DirectionsTravelMode.DRIVING; }, getSelectedUnitSystem: function() { return google.maps.DirectionsUnitSystem.METRIC; }, getDirections: function() { var fromStr = googleMaps.fromInput; var toStr = googleMaps.toInput; var dirRequest = { origin: fromStr, destination: toStr, travelMode: googleMaps.getSelectedTravelMode(), unitSystem: googleMaps.getSelectedUnitSystem(), provideTripAlternatives: true }; googleMaps.dirService.route(dirRequest, googleMaps.showDirections); }, init: function() { googleMaps.map = new google.maps.Map(document.getElementById("map_canvas"), { zoom: 13, mapTypeId: google.maps.MapTypeId.ROADMAP }); // Show directions onload googleMaps.getDirections(); } }; // Onload handler to fire off the app. google.maps.event.addDomListener(window, 'load', googleMaps.init); I could do this just fine in v2, just having trouble working out the v3 equivalent :x

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  • Is it possible to access Request object from Global.asa file?

    - by Rob Segal
    I need to get access to some server variables like APPL_PHYSICAL_PATH from the the Global.asa file. I can do this on any page of my site using the Request object as follows... Request.ServerVariables("APPL_PHYSICAL_PATH") But I don't seem to have access to the Request object within the Global.asa file. Is there an equivalent call I can do here with the Server object?

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  • Why am I getting "Enter Parameter Value" when running my MS Access query?

    - by DanM
    In my query, I use the IIF function to assign either "Before" or "After" to a field named BeforeOrAfter using AS. When I run this query, however, the "Enter Parameter Value" dialog appears, requesting a value for BeforeOrAfter. If I remove BeforeOrAfter DESC from the ORDER BY clause, I don't get the dialog. Here is the offending query: SELECT d.Scenario, e.Event, IIF(d.LogTime < e.Time, 'Before','After') AS BeforeOrAfter, d.HeartRate FROM Data d INNER JOIN Events e ON d.Scenario = e.Scenario WHERE e.Include = Yes ORDER BY d.Scenario, e.Id, BeforeOrAfter DESC Question: Why is my AS BeforeOrAfter not being recognized by the ORDER BY clause? Why does it ask me to enter a parameter value for "BeforeOrAfter" when I run this query? Note: I tried using brackets, single quotes, double quotes, etc., but none of that made any difference.

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  • Salesforce/PHP - Bulk Outbound message (SOAP), Time out issue

    - by Phill Pafford
    Salesforce can send up to 100 requests inside 1 SOAP message. While sending this type of Bulk Ooutbound message request my PHP script finishes executing but SF fails to accept the ACK used to clear the message queue on the Salesforce side of things. Looking at the Outbound message log (monitoring) I see all the messages in a pending state with the Delivery Failure Reason "java.net.SocketTimeoutException: Read timed out". If my script has finished execution, why do I get this error? I have tried these methods to increase the execution time on my server as I have no access on the Salesforce side: set_time_limit(0); // in the script max_execution_time = 360 ; Maximum execution time of each script, in seconds max_input_time = 360 ; Maximum amount of time each script may spend parsing request data memory_limit = 32M ; Maximum amount of memory a script may consume I used the high settings just for testing. Any thoughts as to why this is failing the ACK delivery back to Salesforce? Here is some of the code: This is how I accept and send the ACK file for the imcoming SOAP request $data = 'php://input'; $content = file_get_contents($data); if($content) { respond('true'); } else { respond('false'); } The respond function function respond($tf) { $ACK = <<<ACK <?xml version = "1.0" encoding = "utf-8"?> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <soapenv:Body> <notifications xmlns="http://soap.sforce.com/2005/09/outbound"> <Ack>$tf</Ack> </notifications> </soapenv:Body> </soapenv:Envelope> ACK; print trim($ACK); } These are in a generic script that I include into the script that uses the data for a specific workflow. I can process about 25 requests (That are in 1 SOAP response) but once I go over that I get the timeout error in the Salesforce queue. for 50 requests is usually takes my PHP script 86.77 seconds. Could it be Apache? PHP? I have also tested just accepting the 100 request SOAP response and just accepting and sending the ACK the queue clears out, so I know it's on my side of things. I show no errors in the apache log, the script runs fine. Thanks for any insight into this, --Phill

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  • Remove filter attribute after jQuery UI dialog is finished opening

    - by womp
    Using jQuery UI 1.8rc3 combined with the new jquery.effects.fade.js code, I've been able to finally apply fade-in and fade-out effects to opening the UI Dialog widgets. Hooray! $dialog.dialog({ show: { effect: "fade", options: {}, speed: 150 } } This works great - unfortunately, there's the known IE7 & 8 bug where the ClearType gets turned off by the application of an empty filter: style attribute after the fade effect is finished. I have the code to remove the filter attribute, I just can't find a good way to hook it into the event chain. The dialog's "open" and "focus" events are too soon. I need something like a "dialog opening animation is finished" callback. How can I hook up a callback to the end of the opening effect for a dialog?

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  • MATLAB, time match filter

    - by Paul
    OK, I am still getting the hang of MATLAB. I have two files in different format. One Excel file. data1.xls, size= 86400 X 62. It looks like: Date/Time par1 par2 par3 par4 par5 par6 par6 par7 par8 par9 08/02/09 00:06:45 0 3 27 9.9 -133.2 0 0 0 1 0 Another file, data2.csv, size = 144 X 27. (If nothing is missing.) It looks like: date time P01 P02 P03 P04 P05 P06 P07 P08 P09 P10 P11 8/16/2009 0:00 51 45 46 54 53 52 524 5 399 89 78 Now I am using Data10minAvg = mean(reshape(Data,300,144,62)); to get the 10 min average of the first Excel file. Now I need to match up that file I am making above with the .csv file. The problem is many timestamps are missing in the .csv file. How do I make data2.csv into a file of size 144 X 27, replacing the missing datestamps by rows of zero? It will really help me than compare data1.xls file with newdata2.csv.

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  • What is the best method for implementing mouse wheel activity in Delph1 VCL forms?

    - by Brian Frost
    As a long time user of Delphi 7, I've rolled my own mouse wheel handling in a few controls but lately I've noticed that some recent applications only need the mouse cursor to be placed over a control (e.g a list box or tree view) for the mouse wheel activity to cause that control to scroll. This feels nice (as opposed to having to click focus a control before it responds to the wheel. Now I've moved to Delphi 2010 I'm wondering what is the 'correct' behaviour? And what can I use in Delphi that avoids me having to bodge this with my own solutions now? Thanks.

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  • Desktop SATA drives in SATA <-> FC array

    - by chris
    Let's assume you've got a box like one of these with space for 24 SATA disks. What are the best bits of advice for deploying this? For instance, should you be greedy and go for the 1.5 or 2tb disks or are they just not reliable enough to be used in an array like this and you should stick with 640gb or 750gb disks instead? Also, I know that FC (or generically, "enterprise class") disks have a different error recovery strategy than desktop disks. An enterprise disk will fail a read quickly and report to the controller that it wasn't able to read that block, and the RAID controller will quickly regenerate the info from the parity disk and mark the block as bad. A desktop disk, on the other hand, will try and try and try again to get the data, and in pathological cases this may cause a raid controller to fail the whole disk because the read operation times out. So there are a couple aspects to this question: What's the best sort of disk to get today? (ie specific disks on the market in Feb 2010) Generically, what should someone look for when trying to buy something like this that kinda walks the line between enterprise and consumer? Lastly -- is there anything that can be done with current "consumer" disks to make them more suitable for array use? IE can you use a SMART configuration to change the error recovery strategy used by the disk? Thanks!

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  • busybox does not display the throughput value at the end of a FTP session?

    - by rockyurock
    Hello, why busybox does not display the throughput value at the end of a FTP session? Or it is some version specific ? i heard that some version of busybox displays Tput value at the end of data transfer but i know that specific version .. i typed the below command but i did not get any throughput status.. "busybox ftpget -v -u user -p Password ip abc.txt abc.txt" could anybody please let me know how can i get the tput value for UL/DL data transfer? Also how can we get the status of Tput value at the client side if we do busybox ftpput operation?? regds rocky

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  • Uninterrupted mp3 play on a website?

    - by Kevin
    Client is requesting a single track to be heard across the website. Generally I advise against it, but they insist. So, what is the most straightforward way of having a flash player embedded in a site, and when a user goes to another page there isn't a gap/interruption? I am thinking an iframe is required.. I am using a flash player that has autoresume, but that only solves picking up where you last left off on the song before going to another page. I tried searching SO for an answer..

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  • algorithm advice for finding maximum items within a time period

    - by darren
    Hi everyone. I have a database schema that is similar to the following: | User | Event | Date |--------|---------------|------ | 111 | Walked dog | 2009-10-1 | 222 | Walked dog | 2009-10-2 | 333 | Fed Fish | 2009-10-5 | 222 | Did Laundry | 2009-10-6 | 111 | Fed Fish | 2009-10-7 | 111 | Walked dog | 2009-10-18 | 222 | Walked dog | 2009-10-19 | 111 | Fed Fish | 2009-10-21 I would like to produce a query that returns the maximum number of times a user performs some action within a time period. For example, given a time period of 5 days, what is the maximum number of times user 111 walked the dog? The most obvious solution would be to start at some zero point and move forward each day, summing up 5 day periods along the way, then taking the maximum total out of all the 5 day windows. the approach seems incredibly costly however. I would appreciate any suggestions you may have.

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  • TSQL 'Invalid column name' error on value of sproc parameter

    - by Daria
    here's my code: DECLARE @SQL varchar(600) SET @SQL = 'SELECT CategoryID, SubCategoryID, ReportedNumber FROM tblStatistics WHERE UnitCode = ' + @unitCode + ' AND FiscYear = ' + @currYEAR EXEC (@SQL) When i run this sproc with unitCode = 'COB' and currYEAR = '10', i get the following error: Invalid column name 'COB'. Does anyone know why? thx!

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  • Overriding windows authentication for a .NET application

    - by JoshReedSchramm
    I have a .NET application where the homepage (default.aspx) should be accessible by anyone. There is also a reporting page (reporting.aspx) that I want to secure via windows authentication and only allow access to a particular set of AD groups. Right now the way my web.config is setup it is securing the reporting page but on the home page it prompts the user for login credentials. If they hit esc they can continue to the page though so it isnt actually securing it. I need to prevent it from prompting the user. How do i need to setup my config. Here is what i have now - <system.web> <authentication mode="Windows" /> <identity impersonate="true" /> <authorization> <allow roles="BUILTIN\Administrators, DomainName\Manager" /> <deny users="?" /> </authorization> ...MORE STUFF... </system.web> <location path="default.aspx"> <system.web> <identity impersonate="false" /> <authorization> <allow users="*"/> </authorization> </system.web> </location>

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  • iPhone SDK: Progressive UITableView updates, smoothly animated

    - by boliva
    Hi all, There's something I've been trying to do with no success. I have an UITableView whose viewController is both its delegate and dataSource. On it I also have a mutableArray as a property, which basically acts as the tableView dataSource. This mutableArray gets continously updated from an online XML source. What I haven't been able to accomplish successfully is to animate the adding of new rows at the top of the tableView and the deletion of the oldest rows at its bottom (thinking I'll always going to show the same amount of data, say the latest 10 entries). The method I'm actually using is that, after finishing receiving and parsing the XML data I'm removing all the contents of the mutableArray and storing the new entries on it, to later reload the tableView (calling the 'reloadData' method). In between I'm using a CATransition in order to 'fade' the tableView from its previous to its new state. I tried using beginUpdates and endUpdates, with code for selectively removing the old rows from the tableView and adding the new ones to it, as well as to its datasource, however the animation takes place in the whole table instead of the affected rows only. What I want to accomplish is, after an update, to delete as many rows from the 'bottom' of the table as new entries I have retrieved, sliding the tableView down and adding the new rows at the top of it, smoothly animated. Best regards,

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  • AutoMapper a viable alternative to two way databinding using a FormView?

    - by tbone
    I've started using the FormView control to enable two way databinding in asp.net webforms. I liked that it saved me the trouble of writing loadForm and unloadForm routines on every page. So it seemed to work nicely at the start when I was just using textboxes everywhere....but when it came time to start converting some to DropDownLists, all hell broke lose. For example, see: http://stackoverflow.com/questions/2435185/not-possible-to-load-dropdownlist-on-formview-from-code-behind ....and I had many additional problems after that. So I happened upon an article on AutoMapper, which I know very little about yet, but from the sounds of it, this might be a viable alternative to two-way databinding a form to an domain entity object? From what I understand, AutoMapper basically operates on naming convention, so, it will look for matched names properties(?) on the source and destination objects. So, basically, I have all my domain entities (ie: Person) with properties (FirstName, LastName, Address, etc)....what I would like to be able to do is declare my asp controls with those exact same names, and have automapper do the loading and unloading. One obvious caveat is that AutoMapper would have to know the proper property name for each control type, ie: Person.FirstName -- form.FirstName*.Text* Person.Country -- form.Country.SelectedValue Person.IsVerified -- form.IsVerified.Checked ....so it would have to have the smarts to find the control on the form, determine its type, and then load/unload between the domain object and the webform control into the proper property of the control. So if this worked, a person could just get rid of the cursed FormView control entirely, and it would be just one line of code each for binding and unbinding a webform. Possible?

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