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• take out objects from randomizer obj c

  - by David Pollak

  hello everyone, I'm a new "developer" trying to build some iPhone app I'm making an app which gets text from a list of objects in a NSArray and then randomizes them and display one in a TextView, here's the code: - (IBAction)azione{ NSArray *myArray= [NSArray arrayWithObjects: @"Pasta",@"Pizza",@"Wait",@"Go", nil]; int length = [myArray count]; int chosen = arc4random() % length; testo.text = [myArray objectAtIndex: chosen]; } what I want to do now, is when I open the app and get a random object, to take it out from the list, so that it won't be picked again ex. I open the appI get "Pizza"Do the action againI don't get "Pizza" anymore, only "Pasta" "Wait" and "Go" What should I do ? Which code should I use ? Thanks for answers

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• How do I use Python's itertools.groupby()?

  - by James Sulak

  I haven't been able to find an understandable explanation of how to actually use Python's itertools.groupby() function. What I'm trying to do is this: take a list - in this case, the children of an objectified lxml element - divide it into groups based on some criteria, and then later iterate over each of these groups separately. I've reviewed the documentation (http://docs.python.org/lib/itertools-functions.html), and the examples, (http://docs.python.org/lib/itertools-example.html), but I've had trouble trying to apply them beyond a simple list of numbers. So, how do I use of itertools.groupby()? Is there another technique I should be using? Pointers to good "prerequisite" reading would also be appreciated.

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• ubuntu server slowly filling up

  - by Crash893

  We had our samba server (ubuntu 8.04 ltr) share fill up the other day but when I went to look at it I cant see any of the shares have to much on them we have 5 group shares and then each users has an individual share one users has 22gigs of stuff a few others have 10-20mb of stuff and everyone else is empty so maybe like 26gigs total I deleted a few files yesterday and freed up about 250mb of space today when i checked it it was completely full again and i deleted some older files and freed up about 170mb of stuff but i can watch it slowly creep down in free space. I keep running a df -h Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 241690180 229340500 169200 100% / varrun 257632 260 257372 1% /var/run varlock 257632 0 257632 0% /var/lock udev 257632 72 257560 1% /dev devshm 257632 52 257580 1% /dev/shm lrm 257632 40000 217632 16% /lib/modules/2.6.24-28-generic /volatile what can I do to try to hunt down whats taking up so much of my hdd? (im fairly new to unix in general so i apologize if this is not well explained)

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• ubuntu server slowly filling up

  - by Crash893

  We had our samba server (ubuntu 8.04 ltr) share fill up the other day but when I went to look at it I cant see any of the shares have to much on them we have 5 group shares and then each users has an individual share one users has 22gigs of stuff a few others have 10-20mb of stuff and everyone else is empty so maybe like 26gigs total I deleted a few files yesterday and freed up about 250mb of space today when i checked it it was completely full again and i deleted some older files and freed up about 170mb of stuff but i can watch it slowly creep down in free space. I keep running a df -h Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 241690180 229340500 169200 100% / varrun 257632 260 257372 1% /var/run varlock 257632 0 257632 0% /var/lock udev 257632 72 257560 1% /dev devshm 257632 52 257580 1% /dev/shm lrm 257632 40000 217632 16% /lib/modules/2.6.24-28-generic /volatile what can I do to try to hunt down whats taking up so much of my hdd? (im fairly new to unix in general so i apologize if this is not well explained)

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• Why am I getting the extra xmlns="" using LinqToXML?

  - by Hcabnettek

  Hello all, I'm using LinqToXML to generate a piece of XML. Everything works great except I'm throwing in some empty namespace declarations somehow. Does anyone out there know what I'm doing incorrectly? Here is my code private string SerializeInventory(IEnumerable<InventoryInformation> inventory) { var zones = inventory.Select(c => new { c.ZoneId , c.ZoneName , c.Direction }).Distinct(); XNamespace ns = "http://www.dummy-tmdd-address"; XNamespace xsi = "http://www.w3.org/2001/XMLSchema-instance"; var xml = new XElement(ns + "InventoryList" , new XAttribute(XNamespace.Xmlns + "xsi", xsi) , zones.Select(station => new XElement("StationInventory" , new XElement("station-id", station.ZoneId) , new XElement("station-name", station.ZoneName) , new XElement("station-travel-direction", station.Direction) , new XElement("detector-list" , inventory.Where(p => p.ZoneId == station.ZoneId).Select(plaza => new XElement("detector" , new XElement("detector-id", plaza.PlazaId))))))); xml.Save(@"c:\tmpXml\myXmlDoc.xml"); return xml.ToString(); } And here is the resulting xml. I hope it renders correctly? The browser may hide the tags. - <InventoryList xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.dummy-tmdd-address"> <StationInventory xmlns=""> <station-id>999</station-id> <station-name>Zone 999-SEB</station-name> <station-travel-direction>SEB</station-travel-direction> <detector-list> <detector> <detector-id>7503</detector-id> </detector> <detector> <detector-id>2705</detector-id> </detector> </detector-list> </StationInventory> </InventoryList> Notice the empty namespace declaration in the first child element. Any ideas how I can remedy this? Any tips are of course appreciated. Thanks All, ~ck

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• Prevent IE users from visiting my site?

  - by Paul Hatcherian

  Internet Explorer has caused me a lot of trouble over the years, between security problems, memory leaks, endless CSS and JavaScript hacks to get my site to look correct, and inconsistencies between releases, I've spent countless hours as the hapless victim of IE's idiosyncrasies. Well that ends today, I've decided to take matters into my own hands and ban all users of IE from visiting my website. That will teach them to use such a cruddy browser. My question is how best to do this? I don't want to rely on JavaScript, which could be disabled, nor the request agent string, which could be tampered with. A clever user could even temporarily switch to Firefox or Chrome just to visit my site. Ideally, I'd have a list of the IP addresses of every IE user in the world and restrict based on the IP address. The main problem I'm having, aside from getting the list in the first place, is how do I keep it updated? Thanks!

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• How does bridged networking work?

  - by agz

  How does bridged networking work? I have looked through the virtualbox manuals but nothing extremely technical came up (It was just a generic gloss over of the topic) How does it assign a different ip to the virtual machine but uses the same network card? Why does this different ip (I found using ip addr under linux) not show up under the "attached devices section" of my router but I can port forward to it? How come if I connect to a password protected wifi network, it does not require me to enter my password? Is this multihoming?

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• Controling virtualbox internet access?

  - by HandyGandy

  I am finally going through the process of moving my XP into a vbox (host linux). The thing is that I am migrating a virtually clean install. So aside from the occasional antivirus scan, I want to make sure that my XP is not sending malware data (keystoke.logs, spam etc. ) out silently ( and thus having picked up some virus ). To that end I want to limit XP to contacting my LAN and a few internet sites. ( mainly sites that require proprietary windows only software to access, AV sites and Windows update ). I want XP to only access preapproved addresses. If it is trying to contact a nonapproved address, I want it somehow logged and access restricted until I allow access. I also don't want to have to decide whether to allow access to a site at my leisure. To keeps things clear let me give an example: I start my vbox/XP ( which I call MYXP) running on my linux box ( called MYLINUX connecting to the net through a linksys wrt54g ) and connects via samba to my LAN ( since my LAN seems to be possessed of every evil thing, it's address is 192.168.666. ). At the moment my configuration is set so that I allow MYXP to access 192.168.666 and www.MYANTIVIRUS_UPDATES.com and www.MS_UPDATES.com. Then on the VM I start a program which tries to make a connection to www.playmygame.com . www.playmygame.com is on my preapproved list so the connection goes through. Later I check attempted accesses and discover that it also tried to connect to www.mygame_high_scores.com I figure this is OK so I add www.mygame_high_scores.com to my approved list. Later, I again check address and discover that my VM/XP tried to access www.mygame_steals_your_identity.com. I do some checking and discover the address is registered to someone in Kiev, Nigeria. Since this doesn't sound kosher to me, I replace the MYXP VM with one that was backed up before I installed mygame. I remove www.playmygame.com and www.mygame_high_scores.com from my access list for MYXP. It should acomplish this with little overheard. When I am not running the VM ideally it should not have any overhead. Suggestions?

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• Drupal Custom Form with Filters

  - by dallasclark

  I'm displaying cars on a page created with a view and displays. I want to be able to create a form on the home page to allow people to select the 'make', which will then update the 'models' list based on the 'make' the user selects, 'year' to and from, and 'amount' to and from. What the user selects will of course alter the list of used cars, whether that's on the existing used cars page or a new page. I would be happy to create a custom module if required, just need some direction. Thanks !

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• Convert PDF to Image Batch

  - by tro

  I am working on a solution where I can convert pdf files to images. I am using the following example from codeproject: http://www.codeproject.com/Articles/317700/Convert-a-PDF-into-a-series-of-images-using-Csharp?msg=4134859#xx4134859xx now I tried with the following code to generate from more then 1000 pdf files new images: using Cyotek.GhostScript; using Cyotek.GhostScript.PdfConversion; using System; using System.Collections.Generic; using System.Drawing; using System.IO; using System.Linq; using System.Text; using System.Threading.Tasks; namespace RefClass_PDF2Image { class Program { static void Main(string[] args) { string outputPath = Properties.Settings.Default.outputPath; string pdfPath = Properties.Settings.Default.pdfPath; if (!Directory.Exists(outputPath)) { Console.WriteLine("Der angegebene Pfad " + outputPath + " für den Export wurde nicht gefunden. Bitte ändern Sie den Pfad (outputPath) in der App.Config Datei."); return; } else { Console.WriteLine("Output Pfad: " + outputPath + " gefunden."); } if (!Directory.Exists(pdfPath)) { Console.WriteLine("Der angegebene Pfad " + pdfPath + " zu den PDF Zeichnungen wurde nicht gefunden. Bitte ändern Sie den Pfad (pdfPath) in der App.Config Datei."); return; } else { Console.WriteLine("PDF Pfad: " + pdfPath + " gefunden."); } Pdf2ImageSettings settings = GetPDFSettings(); DateTime start = DateTime.Now; TimeSpan span; Console.WriteLine(""); Console.WriteLine("Extraktion der PDF Zeichnungen wird gestartet: " + start.ToShortTimeString()); Console.WriteLine(""); DirectoryInfo diretoryInfo = new DirectoryInfo(pdfPath); DirectoryInfo[] directories = diretoryInfo.GetDirectories(); Console.WriteLine(""); Console.WriteLine("Es wurden " + directories.Length + " verschiedende Verzeichnisse gefunden."); Console.WriteLine(""); List<string> filenamesPDF = Directory.GetFiles(pdfPath, "*.pdf*", SearchOption.AllDirectories).Select(x => Path.GetFullPath(x)).ToList(); List<string> filenamesOutput = Directory.GetFiles(outputPath, "*.*", SearchOption.AllDirectories).Select(x => Path.GetFullPath(x)).ToList(); Console.WriteLine(""); Console.WriteLine("Es wurden " + filenamesPDF.Count + " verschiedende PDF Zeichnungen gefunden."); Console.WriteLine(""); List<string> newFileNames = new List<string>(); int cutLength = pdfPath.Length; for (int i = 0; i < filenamesPDF.Count; i++) { string temp = filenamesPDF[i].Remove(0, cutLength); temp = outputPath + temp; temp = temp.Replace("pdf", "jpg"); newFileNames.Add(temp); } for (int i = 0; i < filenamesPDF.Count; i++) { FileInfo fi = new FileInfo(newFileNames[i]); if (!fi.Exists) { if (!Directory.Exists(fi.DirectoryName)) { Directory.CreateDirectory(fi.DirectoryName); } Bitmap firstPage = new Pdf2Image(filenamesPDF[i], settings).GetImage(); firstPage.Save(newFileNames[i], System.Drawing.Imaging.ImageFormat.Jpeg); firstPage.Dispose(); } //if (i % 20 == 0) //{ // GC.Collect(); // GC.WaitForPendingFinalizers(); //} } Console.ReadLine(); } private static Pdf2ImageSettings GetPDFSettings() { Pdf2ImageSettings settings; settings = new Pdf2ImageSettings(); settings.AntiAliasMode = AntiAliasMode.Medium; settings.Dpi = 150; settings.GridFitMode = GridFitMode.Topological; settings.ImageFormat = ImageFormat.Png24; settings.TrimMode = PdfTrimMode.CropBox; return settings; } } } unfortunately, I always get in the Pdf2Image.cs an out of memory exception. here the code: public Bitmap GetImage(int pageNumber) { Bitmap result; string workFile; //if (pageNumber < 1 || pageNumber > this.PageCount) // throw new ArgumentException("Page number is out of bounds", "pageNumber"); if (pageNumber < 1) throw new ArgumentException("Page number is out of bounds", "pageNumber"); workFile = Path.GetTempFileName(); try { this.ConvertPdfPageToImage(workFile, pageNumber); using (FileStream stream = new FileStream(workFile, FileMode.Open, FileAccess.Read)) { result = new Bitmap(stream); // --->>> here is the out of memory exception stream.Close(); stream.Dispose(); } } finally { File.Delete(workFile); } return result; } how can I fix that to avoid this exception? thanks for any help, tro

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• How to create a typed stack using Objective-C

  - by Xetius

  I can create a stack class quite easily, using push and pop accessor methods to an NSArray, however. I can make this generic to take any NSObject derived class, however, I want to store only a specific class in this stack. Ideally I want to create something similar to Java's typed lists (List or List) so that I can only store that type in the stack. I can create a different class for each (ProjectStack or ItemStack), but this will lead to a more complicated file structure. Is there a way to do this to restrict the type of class I can add to a container to a specific, configurable type?

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• Maybe I'm infected?

  - by aiacet

  In the last two weeks, when I was using MPC-HC (Media Player Classic Home Cinema) to watch some "justyfied" episodes, my F-Secure Client Security antivirus software alerted me that there was a threat in file A0027132.exe (the number increased each of the three times that the antivirus found a new threat). All these three threats are now quarantined and the files are: 1) C:/System Volume Information/_restore/{72AACB12-6526-40F2-81D7-69DF5809DD8A}\A0027132.exe 2) D:/System Volume Information/_restore/{72AACB12-6526-40F2-81D7-69DF5809DD8A}\A0027133.exe 3) D:/System Volume Information/_restore/{72AACB12-6526-40F2-81D7-69DF5809DD8A}\A0027134.exe The three threats are recognized like: 1. Backdoor.Generic.360086 2. Trojan.Packed.8707 3. Trojan.Packed.8807 F-secure and the OS are both updated at the last release/virus definition.

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• How can I block based on URL (from address bar) in a safari extension

  - by PerilousApricot

  I'm trying to write an extension that will block access to (configurable) list of URLs if they are accessed more than N times per hour. From what I understand, I need to have a start script pass a "should I load this" message to a global HTML page (who can access the settings object to get the list of URLs), who will give a thumbs up/thumbs down message back to the start script to deny/allow loading. That works out fine for me, but when I use the usual beforeLoad/canLoad handlers, I get messages for all the sub-items that need to be loaded (images/etc..), which screws up the #accesses/hour limit I'm trying to make. Is there a way to synchronously pass messages back and forth between the two sandboxes so I can tell the global HTML page, "this is the URL in the window bar and the timestamp for when this request came in", so I can limit duplicate requests? Thanks!

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• Windows 7 Service Pack 1 Install Failing

  - by Cu Jimmy

  I am having real trouble updating one of my machines to Win7 Service Pack 1. Its an Asus P5K board with an X9650 Quad Core Extreme chip, which is a less common type of chip. Was wondering if anyone has had issues with this kind of kit or if it may just be the motherboard is a little gone. The error message I get back from Microsoft Update is WindowsUpdate_80091007 and WindowsUpdate_dt000 which are fairly generic errors. Tried installing with the sp1 file based installer and got nowhere. The actual installer crashes with an SP Installer has crashed Its a fresh install on a fully scrubbed drive (an Intel 120GB SSD).

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• PendingIntent from notification and application history conflicts

  - by synic

  I'm creating a notification with something similar to the following: Intent ni = new Intent(this, SomeActivity.class); ni.putExtra("somestring", "somedata"); PendingIntent contentIntent = PendingIntent.getActivity(this, 0, ni, PendingIntent.FLAG_UPDATE_CURRENT|PendingIntent.FLAG_ONE_SHOT); Context context = getApplicationContext(); notification.setLatestEventInfo(context, res.getString(R.string.app_name), text, contentIntent); The key here is the extra data on the Intent for the notification. Once I click on the notification and it brings up SomeActivity, it brings up the activity and the extra data is available. However, if I exit the app, hold the home button until the recent activities list comes up, and choose to open the app again, the extra data is still passed. Is there a way I can make this data get passed only if the app is opened via the Notification, and not from the recent activities list?

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• Wrong PC-projector resolution in Windows 7

  - by peter.olsson

  I'm connecting a PC-projector (Benq MP721) to a Windows 7 Professional laptop (HP 6730b). All the output settings on the laptop, including the laptop screen, changes to 1024x768 (which the projector supports). However the projector says it receives 1360x768 and asks me to change the resolution to 1024x768. I'm using mirrored display. The laptop is 1024x768 The screen resolution in the control panel says 1024x768 The Intel graphics card utilities says 1024x768 The driver for the projector is a Generic PnP Monitor Is there anything in Windows 7 that would convert my 4:3 resolution to wide screen automatically?

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• Use VIM omnicomplete for javascript with ctags

  - by Gramic

  I am using vim/gvim for 4 months already and now I found a way to use it's strengths. My tags file is generated very well and here is a simple row in it. my.namespace.classname /path/to/file.js /^my.namespace.classname = function(first_arg,$/;" f Here is an example what i need to omnicomplete: my.namespace.cla <- omnicomplete list with all classnames in the my.namespace The above is the key to my problem, because it looks like omnicomplete searches only namespace without including "my." in front of it. So i see other element in the omnicomplete list and not my classname at all. However, if i type :tag my.namespace.classname for example gvim opens the correct file at the correct position. What is wrong and how can I make it work?

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• How to combine specific column values in an SQL statement

  - by Mehper C. Palavuzlar

  There are two variables in our database called OB and B2B_OB. There are EP codes and each EP may have one of the following 4 combinations: EP OB B2B_OB --- -- ------ 3 X 7 X 11 14 X X What I want to do is to combine the X's in the fetched list so that I can have A or B value for a single EP. My conditions are: IF (OB IS NULL AND B2B_OB IS NULL) THEN TYPE = A IF (OB IS NOT NULL OR B2B_OB IS NOT NULL) THEN TYPE = B The list I want to fetch is like this one: EP TYPE --- ---- 3 B 7 B 11 A 14 B How can I do this in my query? TIA.

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• Updating the datalist in a RadComboBox

  - by jphenow

  So I'm just struggling with a lot of little things in the web app so I'm checking up with all kinds of stuff to make sure i'm not breaking it cause of stupid problems. At some point in my web app (trying to keep it mostly Asynchronous) I have to update the list in my RadComboBox because something was added. Do I just need to call RadComboBox.DataBind() again? Since I don't explicitly use its datasource(I do it in the manual insert using a string fashion) object to insert my new record do I need to tell that to update? The list just doesn't seem to update when i just call databind so I feel like i need to have the datasource recheck for entries or SOMETHING Thanks

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• Add Event Handler To Dynamic Dropdownlist

  - by Andrea Girardi

  Hi all! I have a page that contains dynamically generated Dropdown List controls and I want thant the dynamic dropdown list perform an AutoPostback to fill some other field using the value selected. This is the code I'm using to create dynamically the control: If (Not IsPostBack) Then Dim newDDL As DropDownList = New DropDownList() AddHandler newDDL.SelectedIndexChanged, AddressOf ChangeValue newDDL.ID = "Level1" [fill the DropDownList] newDDL.Items.Insert(results.Count, New ListItem("", -1)) newDDL.Width = "300" newDDL.AutoPostBack = True newDDL.SelectedIndex = results.Count LevelDDLs.Controls.Add(newDDL) LevelDDLs.Controls.Add(New LiteralControl("<br /><br />")) End If Control is correctly filled and rendered on ASP page but, after selecting a value, the page is reloaded (AutoPostBack is called) but the control is not diplayed and the sub is not called. I put a breakpoint into the ChangeValue sub but anything happens. I read on some post that handler for the first DropDownList is not necessary but, how is it possible to tell DropDownList to call my sub after changevalue? Could you help me, please? many thanks, Andrea

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• [numpy] storing record arrays in object arrays

  - by Peter Prettenhofer

  I'd like to convert a list of record arrays -- dtype is (uint32, float32) -- into a numpy array of dtype np.object: X = np.array(instances, dtype = np.object) where instances is a list of arrays with data type np.dtype([('f0', '<u4'), ('f1', '<f4')]). However, the above statement results in an array whose elements are also of type np.object: X[0] array([(67111L, 1.0), (104242L, 1.0)], dtype=object) Does anybody know why? The following statement should be equivalent to the above but gives the desired result: X = np.empty((len(instances),), dtype = np.object) X[:] = instances X[0] array([(67111L, 1.0), (104242L, 1.0), dtype=[('f0', '<u4'), ('f1', '<f4')]) thanks & best regards, peter

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• ManyToMany Relation does not create the primary key

  - by Javi

  Hello, I have a ManyToMany relationship between two classes: ClassA and ClassB, but when the table for this relationship (table called objectA_objectB) there is no primary key on it. In my ClassA I have the following: @ManyToMany(fetch=FetchType.LAZY) @OrderBy(value="name") @JoinTable(name="objectA_objectB", joinColumns= @JoinColumn(name="idObjectA", referencedColumnName="id"), inverseJoinColumns= @JoinColumn(name="idObjectB", referencedColumnName="id") ) private List<ClassB> objectsB; and in my ClassB I have the reversed relation @ManyToMany List<ClassA> objectsA; I just want to make a primary key of both id's but I need to change the name of the columns as I do. Why is the PK missing? How can I define it? I use JPA 2.0 Hibernate implementation, if this helps. Thanks.

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• Is this a cache problem? (JQUERY/OPERA)

  - by Scarface

  Hey guys quick question. I have this code that brings in data from a php script and it works fine in fire fox and mostly opera except one problem. In opera if I keep refreshing the page, once in a while the information will not appear at all. Is this possible to fix? Thanks in advance for any assistance. $.getJSON(files+"comments.php?action=view&load=initial&topic_id="+topic_id+"&t=" + (new Date()), function(json) { if(json.length) { for(i=0; i < json.length; i++) { $('#comment-list').prepend(prepare(json[i])); $('#list-' + count).fadeIn(1500); } } });

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• Smarty debug mode not displaying included templates.

  - by Kyle Sevenoaks

  On www.euroworker.no/order I have set Smarty's debug mode on with {debug output=html} in the header, so it will debug every page. But it says: Smarty Debug Console included templates & config files (load time in seconds): no templates included And after a list of template variables, {$cart} Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 561962 bytes) in /home/euroworkerno/www/library/smarty/libs/plugins/modifier.debug_print_var.php on line 30 It also doesn't display a list of templates for any url.. This is strange, can anyone point me to why it won't display the lit of .tpls? I need to find some HTML comments that someone has left in to rid IE of a display bug. Thanks.

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• Auto refresh web page

  - by Epitaph

  I have a web page which allows the user to carry out various operations that in turn modify the database. Also, this web application needs to keep track of various fields in database that keep changing with time. Is refreshing the page every few seconds the best possible way to implement this? For example, if there is a long list on the page requiring scrolling, it is hard to view the list since the page keeps resetting due to the refresh. I know, there are ways to retain the position of the scroll. But, could I use something more efficient?

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