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  • What is the simplest way to map a folder on the file system to a url in Tomcat?

    - by Simon
    Here's my problem... I have a small prototype app (happens to be in Grails hosted on AWS) and I want to add the ability of the user to upload a few (max 10) images. I want to persist these images on disk on the server machine, in a folder location which is outside my WAR. I realise that there is probably a super-scalable solution involving more web servers and optimised static asset serving, but for the approximately 100 users I am likely to get, it's really not worth the effort and cost. So, what is the simplest way I can have a virtual folder from my url map to a physical folder on disk? I sort of want... http://myapp.com/static to map to a folder which I can configure e.g. /var/www/static so I can then have in my code... <img src="/static/user1/picture.jpg"/> I don't particularly mind whether the resulting physical folders are directly browsable. Security will eventually be an issue, but it isn't at the start. So, what are my options? I have looked at virtual hosts on the apache site, but it feels more complicated than I need. I don't want to use the Grails static rendering plugins.

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  • Facebook API - Get comments

    - by Simon R
    Our business has a Facebook Fan Page. The fan page doesn't seem to generate any emails to us when updates are made to the page, whether someone adds a new status or someone comments on one of the statuses etc. Currently, we are running a very crude script to grab the content of the page and then use regular expressions to get the information we require. Obviously this is not fool proof and I'm looking into alternatives to this method. I've been looking at the facebook API and wonder if the rest server might be an option. I cannot, however, seem to find out how to return information of fan page statuses and their comments. Is anyone able to direct me how to use the API to retrieve this information. I am an admin of the fan page. The programming language I'm using is PHP. Many thanks.

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  • C++ app fails to initialize (0xc0000005), when using C# dll

    - by Simon
    Hi, I have a C# DLL, which I call from a native C++ programm. As I use Qt and /clr compiler option did not work I followed this tutorial for a bridge. So I have a VS2008 project (compiled with /clr), which links to the C# DLL and contains the bridge class and the native class, which exposes interfaces to my C++ programm. Another VS2008 project (no .net stuff) calls the native class (statically linked). I had some issues, but now the programm at least compiles. However, if I try to run this programm, I get a (0xc0000005) error on initialization, when I try to use the native class. As this happens on initialization, I don't even see, which DLLs fail to initialize. All DLLs should be in the right place. Any hints? Thank you.

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  • C++ memcpy problem :(

    - by Simon
    Hey all :) I have a problem my src pointer of memcpy is pointing wrong. unsigned char* lpBuffer is a buffer that contains my bytes, i checked with olly. The code: IMAGE_DOS_HEADER iDOSh; memcpy(&iDOSh,lpBuffer,sizeof(iDOSh)); The problem is that lpBuffer points wrong, output from debugger is dest = 002859E8 RIGHT src = 000001D8 FALSE src is pointing invalid :( i have no idea why Thanks for reading

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  • How do I implement a collection in Scala 2.8?

    - by Simon Reinhardt
    In trying to write an API I'm struggling with Scala's collections in 2.8(.0-beta1). Basically what I need is to write something that: adds functionality to immutable sets of a certain type where all methods like filter and map return a collection of the same type without having to override everything (which is why I went for 2.8 in the first place) where all collections you gain through those methods are constructed with the same parameters the original collection had (similar to how SortedSet hands through an ordering via implicits) which is still a trait in itself, independent of any set implementations. Additionally I want to define a default implementation, for example based on a HashSet. The companion object of the trait might use this default implementation. I'm not sure yet if I need the full power of builder factories to map my collection type to other collection types. I read the paper on the redesign of the collections API but it seems like things have changed a bit since then and I'm missing some details in there. I've also digged through the collections source code but I'm not sure it's very consistent yet. Ideally what I'd like to see is either a hands-on tutorial that tells me step-by-step just the bits that I need or an extensive description of all the details so I can judge myself which bits I need. I liked the chapter on object equality in "Programming in Scala". :-) But I appreciate any pointers to documentation or examples that help me understand the new collections design better.

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  • Faking a UITableView selection

    - by John Smith
    I have a UITableView where a selection displays some cool stuff in another part of the display. I tried to fake a keypress by writing: NSIndexPath *ip = [NSIndexPath indexPathForRow: 1 inSection:0]; [tableView selectRowAtIndexPath:ip animated:NO scrollPosition:UITableViewScrollPositionTop ]; [self tableView:tableView didSelectRowAtIndexPath:ip]; However it seems the last line is not being run. How can I make it run?

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  • Do I have to use Stored Procedures to get query level security or can I still do this with Dynamic S

    - by Peter Smith
    I'm developing an application where I'm concerned about locking down access to the database. I know I can develop stored procedures (and with proper parameter checking) limit a database user to an exact set of queries to execute. It's imperative that no other queries other then the ones I created in the stored procedures be allowed to execute under that user. Ideally even if a hacker gained access to the database connection (which only accepts connections from certain computers) they would only be able to execute the predefined stored procedures. Must I choose stored procedures for this or can I use Dynamic Sql with these fine grain permissions?

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  • how can i request a variable in my home.ctp of my cakePHP application?

    - by Simon
    I created a page using the MVC structure called 'sections' ( view is located in the app/views/sections folder, model in the model folder and the controller in the controller folder) when i request the variable $test, it works fine without any errors.. When i want to request this variable in my home.ctp, it provides me with an error, saying that the variable is undefined.. Is there any way in cakePHP to request this variable on any page you want it to? Thnx in advance!

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  • SWIG-Lua question on class returning another class

    - by John Smith
    I am concreting a question I had earlier. I have two classes in C++ and I use SWIG to wrap them. A method in one class can return a pointer to the other class. How can I get Lua to see it as more than just a userdata? More concretely: I have class fruit { int numberofseeds; //some other stuff about fruit constructors etc... public: getseedcount() { return numberofseeds; } } class tree { fruit * apple; public: //constructors and whatnot fruit * getfruit() { return apple; } } I wrap these two class with SWIG so I can access them in Lua So I can get in Lua the object x=pomona.tree(grannysmith). My question now is: How can I arrange for things so that when I type y=x:getfruit() I will get a pomona:fruit type object? Where I can write something line y:getseedcount()? At the moment all I get is userdata which not edible.

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  • C++ arrays select square number and make new vector

    - by John Smith
    I have to see which of the following from a vector is a square number then make another vector with only the square numbers For example: (4,15,6,25,7,81) the second will be (4,25,81) 4,25,81 because 2x2=4 5x5=25 and 9x9=81 I started like this: { int A[100],n,r,i; cout<<"Number of elements="; cin>>n; for(i=1;i<=n;i++) { cout<<"A["<<i<<"]="; cin>>A[i]; } for(i=1;i<=n;i++) { r=sqrt(A[i]); if(r*r==A[i]) } return 0; } but I am not really sure how to continue

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  • Help with MySQL database structure - user notification system

    - by Simon
    Hi, I'd like to send global notifications to my users (1000+ users) and allow them to close the notification box once they have read the message. Basically I may send one notification per week globally ie/ each user get the same message and they are not personal in nature. What is the best way to achieve this? Create 2 tables: **tb_messages** message_id massage_title message_content **tb_read_messages** user_id message_id is-read That way i can just show each user the current notifications that are not read? select * from tb_read_messages WHERE user_id = $user_id AND is-read = no OR is there a more efficient way? Thanks!!!

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  • Jquery return element html instead of content

    - by jim smith
    I have something like this <ul> <li class="aclass" id="a">content</li> <li class="aclass" id="b">content</li> <li class="aclass" id="c">content</li> <li class="aclass" id="d">content</li> <li class="aclass" id="e">content</li> <li class="aclass" id="f">content</li> </ul> I have code like $(".aclass").live("mousedown",function() { alert($this.html()); }); This will alert the content, what I would like to do is alert the entire element like <li class="aclass" id="f">content</li> I've tried $(this).parent() but that returns the whole UL

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  • visual studio qt5 plugins not working on release

    - by John Smith
    I'm got this project where i'm showing images with a qt5 interface, i'm simply setting the Pixmap of a label with the qimage pixmap The thing is, it's working on a debug build, but not on a release build and i dont understand why. I already got a folder in my .Exe folder named "plugins" and a subfolder in it named "imageformats", and in this folder the file named "qjpeg.dll" So i coming here to see if someone has an idea on why it doesn't work ? Thanks in advance !

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  • C++ - Access array (in main) from methods outside main

    - by John Smith
    I have an array in my main class that holds objects that I need to print out for a menu listing. The array is declared and initialized in main. I need to, however, access the same array in a sub-menu function. If I copy the code (for loop that prints out the values) to the sub-menu, nothing is printed (presumably because it can't access the original array and has made a new, blank one). Is there any way (without making the array a global variable) that I can access the array in this sub-menu? Both the main and the sub-menu function are in the same file and the sub-menu is called from main. Maybe to put it more simply, can I use scope resolution to bring me up one 'level' in scope?

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  • Structuremap and creating objects with initial state

    - by Simon
    I have an object which needs a dependency injected into it public class FootballLadder { public FootballLadder(IMatchRepository matchRepository, int round) { // set initial state this.matchRepo = matchRepository; this.round = round; } public IEnumerable<LadderEntry> GetLadderEntries() { // calculate the ladder based on matches retrieved from the match repository // return the calculated ladder } private IMatchRepository matchRepo; private int round; } For arguments sake, lets assume that I can't pass the round parameter into the GetLadderEntries call itself. Using StructureMap, how can I inject the dependency on the IMatchRepository and set the initial state? Or is this one of those cases where struggling against the framework is a sign the code should be refactored?

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  • Responding to setters

    - by Simon Cave
    What is the best way to respond to data changes when property setters are called. For example, if I have a property called data, how can I react when [object setData:newData] is called and still use the synthesised setter. Instinctively, I would override the synthesised setter like so: - (void)setData:(DataObject *)newData { // defer to synthesised setter [super setData:newData]; // react to new data ... } ...but of course this doesn't make sense - I can't use super like this. So what is the best way to handle this situation? Should I be using KVO? Or something else?

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  • Creating a contact form using divs with 4 extra divs for "Corners"?

    - by mark smith
    Hi there, i have tried to create a contact form (a standard form, square in nature but with rounded corners)... I can't use the CSS3 specs so i have an image for each corner.. I have set the images on the background-image and no repeat but it seems if the div is empty then it doesn't display, is there a hack - although prefer an alternative clean method :-) So on the top level i presume i have 1 div for the Upper-Left (corner) and then the upper-middle (just has a color assigned) and then a div for the upper-right (corner) .. so i presume i need to float all these to the left??? Or am i missing something? Thanks in advance

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  • PHP – Slow String Manipulation

    - by Simon Roberts
    I have some very large data files and for business reasons I have to do extensive string manipulation (replacing characters and strings). This is unavoidable. The number of replacements runs into hundreds of thousands. It's taking longer than I would like. PHP is generally very quick but I'm doing so many of these string manipulations that it's slowing down and script execution is running into minutes. This is a pain because the script is run frequently. I've done some testing and found that str_replace is fastest, followed by strstr, followed by preg_replace. I've also tried individual str_replace statements as well as constructing arrays of patterns and replacements. I'm toying with the idea of isolating string manipulation operation and writing in a different language but I don't want to invest time in that option only to find that improvements are negligible. Plus, I only know Perl, PHP and COBOL so for any other language I would have to learn it first. I'm wondering how other people have approached similar problems? I have searched and I don't believe that this duplicates any existing questions.

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  • Open Maps app from Code : Where to find the "Current Location"?

    - by Simon
    I am opening Maps app to show directions from user's Current Location to a destination coordinate, from my code. I am using the following code to open the Maps app. I am calling this code when a button is pressed. - (void)showDirectionsToHere { CLLocationCoordinate2D currentLocation = [self getCurrentLocation]; // LINE 1 NSString* url = [NSString stringWithFormat: @"http://maps.google.com/maps?saddr=%f,%f&daddr=%f,%f", destCoordinate.latitude + 0.1, destCoordinate.longitude, destCoordinate.latitude, destCoordinate.longitude];//8.3, 12.1 [[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]]; } Here [self getCurrentLocation] in LINE 1 uses CLLocationManager to determine the Current Location and returns the value. Note: I have not yet implemented the LINE1. I've just planned to do in that way. My question is, Is this a good practice to calculate the Current Location, at the time the Maps app is called? [self getCurrentLocation] will retrun the Current Location before openURL gets called? I have to determine the Current Location well before opening the Maps app? I am little bit confused about these things. Kindly guide me. Thanks.

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  • Should I be concerned with infected zip files?

    - by Peter Smith
    I'm writing a ASP.NET application to process user submitted zip files and limiting my extraction of files from it to only the extensions I want. I've heard of infected zip files attached to emails and I was wondering if I should be concerned about extracting data from infected zip files in my application. I don't plan on executing the content inside of the zip file, but will opening and extracting from an infected zip file cause the file to execute a virus even if I'm not executing any content inside of the zip file?

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