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  • django authentication .htaccess static

    - by Uszy Wieloryba
    In my app users can upload files for other users. To make the uploaded files accesible only for the addresse I need some kind of static files authentication system. My idea, is to create the apache hosted directory for each user and to limit access to this derectory using .htaccess. This means that each time new django user is created, I need to create a directory and the appropriate .htaccess file in it. I know I should do it using post_save signals on User model but I don't know how to create the .htaccess in the user's directory from python level. Can you help me with that? Or perhaps you have better solution to my problem?

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  • Exceptions & Interrupts

    - by Betamoo
    When I was searching for a distinction between Exceptions and Interrupts, I found this question Interrupts and exceptions on SO... Some answers there were not suitable (at least for assembly level): "Exception are software-version of an interrupt" But there exist software interrupts!! "Interrupts are asynchronous but exceptions are synchronous" Is that right? "Interrupts occur regularly" "Interrupts are hardware implemented trap, exceptions are software implemented" Same as above! I need to find if some of these answers were right , also I would be grateful if anyone could provide a better answer... Thanks!

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  • Idiots guide to app engine and memcache

    - by Gareth Simpson
    I am struggling to find a good tutorial or best practices document for the use of memcache in app engine. I'm pretty happy with it on the level presented in the docs. Get an object by ID, checking memcache first, but I'm unclear on things like: If you cache a query, is there an accepted method for ensuring that the cache is cleared/updated when an object stored in that query is updated. What are the effects of using ReferenceProperties ? If a cache a Foo object with a Bar reference. Is my foo.bar in memcache too and in need of clearing down if it gets updated from some other part of my application. I don't expect answers to this here (unless you are feeling particularly generous!), but pointers to things I could read would be very gratefully received.

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  • What happens when Npgsql connection pool reaches Max

    - by ClearCarbon
    Both the name of the connection string parameter and this blog post - http://fxjr.blogspot.co.uk/2010/04/npgsql-connection-pool-explained.html - lead me to believe that Npgsql wont exceed the MaxPoolSize value set in the connection string. However the docs (http://npgsql.projects.postgresql.org/docs/manual/UserManual.html) say "Max size of connection pool. Pooled connections will be disposed of when returned to the pool if the pool contains more than this number of connections. Default: 20" This suggests that the pool can actually grow larger than MaxPoolSize and it is in fact just a level at which Npgsql starts to aggressively remove connections from the pool as soon as they are returned. I've been searching to try and find an answer but I can find out exactly what happens when you reach MaxPoolSize. Anyone else know? edit: I should add we are using Npgsql 2.0.6.0 due to another dependency being supported only up to that version.

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  • R how to find NA values after using addNA function

    - by screechOwl
    I have a data frame with a bunch of categorical variables. Some of them contain NA's and I use the addNA function to convert them to an explicit factor level. My problem comes when I try to treat them as NA's they don't seem to register. Here's my example data set and attempts to 'find' NA's: df1 <- data.frame(id = 1:200, y =rbinom(200, 1, .5), var1 = factor(rep(c('abc','def','ghi','jkl'),50))) df1$var2 <- factor(rep(c('ab c','ghi','jkl','def'),50)) df1$var3 <- factor(rep(c('abc','ghi','nop','xyz'),50)) df1[df1$var1 == 'abc','var1'] <- NA df1$var1 <- addNA(df1$var1) df1$isNaCol <- ifelse(df1$var1 == NA, 1, 0);summary(df1$isNaCol) df1$isNaCol <- ifelse(is.na(df1$var1), 1, 0);summary(df1$isNaCol) df1$isNaCol <- ifelse(df1$var1 == 'NA', 1, 0);summary(df1$isNaCol) df1$isNaCol <- ifelse(df1$var1 == '<NA>', 1, 0);summary(df1$isNaCol) Also when I type ??addNA I don't get any matches. Is this a gray-market function or something? Any suggestions would be appreciated.

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  • How long should it take a senior developer to solve FizzBuzz during an interview?

    - by Jim McKeeth
    Assuming: Typical interview stress levels (I am watching) Using familiar IDE and program language (their choice on their PC!) Given adequate explanation and immediate answers to questions Able to compile code and check answers / progress Claims to be a senior level programmer How long should it take an interviewee to answer FizzBuzz correctly? Edit: FizzBuzz: Write a program that prints the numbers from 1 to 100. But for multiples of three print "Fizz" instead of the number and for the multiples of five print "Buzz". For numbers which are multiples of both three and five print "FizzBuzz". Edit: It isn't so much that if they take more then X minutes they are disqualified, but I am curious if I should just cut them loose after they work on it for half hour.

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  • How do I make this loop all children recursively?

    - by Matrym
    I have the following: for (var i = 0; i < children.length; i++){ if(hasClass(children[i], "lbExclude")){ children[i].parentNode.removeChild(children[i]); } }; I would like it to loop through all children's children, etc (not just the top level). I found this line, which seems to do that: for(var m = n.firstChild; m != null; m = m.nextSibling) { But I'm unclear on how I refer to the current child if I make that switch? I would no longer have i to clarify the index position of the child. Any suggestions? Thanks!

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  • Visual Studio : Make files in a folder got to bin/debug and not bin/debug/folder

    - by CF_Maintainer
    Consider This: I have folder called \SQLCE35Dlls inside my solution. It has some dlls that are required for application to interact with a SQLCE database in a stand alone fashion [without sql server ce 35 install on the PC]. After a build, I want these files to go to bin/debug and not to bin/debug/SQLCE35Dlls/. Setting "Copy if Newer" creates the latter situation. I want the former. Is it possible to facilitate this or does this have to done as part of the installer script? [avoiding the solution of adding the dlls at the root level of the solution instead of inside a folder]. This is a Winforms project solution.

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  • MS Access Print Report using VBA

    - by LanguaFlash
    I have a very VBA intensive report. When I preview it everything is great but when I print it after previewing things go wacky. I have spent many hours narrowing down the possibilities and I have conclude with a certain level of confidence that it is a but in MS Access. Up to this point my method for printing reports was to open the report using docmd.openreport "report". I then use the docmd.printout command so that I can set the page range, collation etc. Is there a way to print a report directly and still be able to set options like page rage, collate etc without doing a preview first? Thanks, Jeff

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  • ASP.net displaying data from SQL data source

    - by c11ada
    hey all, im using linq2SQL to grab information from my SQL database, i have a gridview which shows all the top level information, in this case a list of groups (i.e admin, users and so on) when a user clicks say the admin group, i want to be able to show each member in that group, i have the following code which grabs the information from the database, DataClassesDataContext dc = new DataClassesDataContext(); GridViewRow row = GridView1.SelectedRow; var query1 = from p in dc.Users where p.groups.GroupID == Int32.Parse(row.Cells[1].Text) select new { p.Name, p.Address, p.Contact Number, p.Bio, }; i no i can use gridview again to display the results of the query, but this doesnt really look nice as it shows too much information at one, how would i go about having some sort of display which will show just one user at a time giving me the chance to click next and back ? thanks

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  • Why isn't WH_MOUSE hook global anymore?

    - by Valentin Galea
    I have this global mouse hook setup in a DLL that watches for mouse gestures. Everything works perfectly but with a hook set for WH_MOUSE_LL which is a low-level hook and one that doesn't need to be in an external injectable DLL. Once I switch - to the more suitable one would say - WH_MOUSE mouse hook, everything falls apart. Once I click outside my main application (the one that installs the hook), the hook gets corrupted - ::UnhookWindowsHookEx will fail. I only found this guy saying at experts exchange: "No way, at least under Windows XP + SVP2 WH_MOUSE won't go global, you must use WH_MOUSE_LL instead." I setup the hooks correctly: in a DLL using a shared data section, posting and not sending messages from the hook proceduce. Why has this changed? And why is not documented? Anyone encountered this? Thanks! BTW: I've reverse engineered a bit the popular StrokeIt application and it uses a combination of WH_GETMESSAGE and WH_MOUSE hooks and still works on XP/Vista...

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  • Add title to meta analysis forest plot

    - by Timothy Alston
    I am meta-analysing some studies and drawing a forest plot for my results. However I can`t seem to get the forest plot to display the title. An example of my code is: require(meta) parameter1<-metaprop(sm="PLOGIT", event=c(4,16,3,2,10,1,0,2), n=c(90,402,89,29,153,86,21,48), level = 0.95, studlab=c("study 1", "study 2", "study 3", "study 4", "study 5", "study 6", "study 7", "study 8"), title="meta analysis 1") forest(parameter1) When it produces the forest plot, the title "meta analysis 1" is missing. How can I add this in? Thanks in advance, Timothy

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  • How do I serve nested static content on Heroku?

    - by Matthew Murdoch
    I have a rails application with static content in the public directory (e.g. public/index.html) and additional static content in nested subdirectories (e.g. public/one/two/index.html). All the static content is served correctly if I run it locally via script/server but when I upload it to Heroku the top-level page loads correctly but the nested content returns a 404. I've found a number of resources (for example this question) which discuss static content in rails but they all seem to assume a fairly simple structure with a single directory containing all the files. Is there any way I can fix this?

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  • Performance Tricks for C# Logging

    - by Charles
    I am looking into C# logging and I do not want my log messages to spend any time processing if the message is below the logging threshold. The best I can see log4net does is a threshold check AFTER evaluating the log parameters. Example: _logger.Debug( "My complicated log message " + thisFunctionTakesALongTime() + " will take a long time" ) Even if the threshold is above Debug, thisFunctionTakesALongTime will still be evaluated. In log4net you are supposed to use _logger.isDebugEnabled so you end up with if( _logger.isDebugEnabled ) _logger.Debug( "Much faster" ) I want to know if there is a better solution for .net logging that does not involve a check each time I want to log. In C++ I am allowed to do LOG_DEBUG( "My complicated log message " + thisFunctionTakesALongTime() + " will take no time" ) since my LOG_DEBUG macro does the log level check itself. This frees me to have a 1 line log message throughout my app which I greatly prefer. Anyone know of a way to replicate this behavior in C#?

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  • How do I resolve the config error which states a machine to application error

    - by waterfalrain
    I imported a website made in visual studio express 2008 to visual studio express 2010. When I run the home page I get the following error: "It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS." When I looked up the meaning of this on Google I read their needed to be a change to the configuration of the virtual directory. Another suggestion was to change the web config files . T Were these suggestions correct? If so how do I emplement them so that I can view these website pages on my local machine.

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  • The difference between traditional DLL and COM DLL.

    - by smwikipedia
    I am currently studying COM. I found that COM DLL is kind of built upon the traditional DLL infrastructure. When we build COM DLLs, we still rely on the traditional DLL export methods to lead us to the internal COM co-classes. If COM is for component reusing at the binary level, I think the traditional DLL can achieve the same thing. They both expose functions, they are both binary, so what's the point of turning to COM approach? Currently, I have the feeling that the traditional DLL expose methods in a "flat" manner, while the COM DLL expose methods in an "OOP" hierarchy manner. And the OOP manner seems to be a better approach. Could this be the reason why COM prevails? Many thanks.

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  • Applet in different directory than .html page

    - by Jorge Matos
    Hello all, I'm trying to use a different directory to contain the applets and other directory with .html pages. Both are in the same level, that is, none is a sub-directory of the other. For that I was trying to use the parameter codebase, however, no matter what I put in codebase value (relative, absolute path) I always get a class not found error. I googled and found some people with the same problem, but no answers:( Does anybody knows how to accomplish this? I'm using JRE 1.6_20. Cheers, Jorge

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  • How important is W3C XHTML/CSS validation when finalizing work?

    - by Andrew G. Johnson
    Even though I always strive for complete validation these days, I often wonder if it's a waste of time. If the code runs and it looks the same in all browsers (I use browsershots.org to verify) then do I need to take it any further or am I just being overly anal? What level do you hold your code to when you create it for: a) yourself b) your clients P.S. Jeff and company, why doesn't stack overflow validate? :) EDIT: Some good insights, I think that since I've been so valid-obsessed for so long I program knowing what will cause problems and what won't so I'm in a better position than people who create a site first and then "go back and fix the validation problems" I think I may post another question on stack overflow; "Do you validate as you go or do you finish and then go back and validate?" as that seems to be where this question is going

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  • Unable to create index because of duplicate that doesn't exist?

    - by Alex Angas
    I'm getting an error running the following Transact-SQL command: CREATE UNIQUE NONCLUSTERED INDEX IX_TopicShortName ON DimMeasureTopic(TopicShortName) The error is: Msg 1505, Level 16, State 1, Line 1 The CREATE UNIQUE INDEX statement terminated because a duplicate key was found for the object name 'dbo.DimMeasureTopic' and the index name 'IX_TopicShortName'. The duplicate key value is (). When I run SELECT * FROM sys.indexes WHERE name = 'IX_TopicShortName' or SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'[dbo].[DimMeasureTopic]') the IX_TopicShortName index does not display. So there doesn't appear to be a duplicate. I have the same schema in another database and can create the index without issues there. Any ideas why it won't create here?

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  • .net open auth?

    - by chobo2
    Hi I know stackoverflow uses open authentication. I want to try and use this as well. I am using asp.net mvc 2.0 with C#. I found this http://www.dotnetopenauth.net/ and I am wondering if this is what was used for stackoverflow. Also any tutorials would be nice as well. Edit I am trying to load up some sample projects but when I build it in VS2010 I get Error 6 'System.Diagnostics.Contracts.ContractInvariantMethodAttribute' is inaccessible due to its protection level C:\Users\chobo2\Downloads\DotNetOpenAuth-3.4.6.10357\DotNetOpenAuth-3.4.6.10357\Samples\OpenIdOfflineProvider\TextBoxTextWriter.cs 73 4 OpenIdOfflineProvider Error 7 The type or namespace name 'ContractInvariantMethod' could not be found (are you missing a using directive or an assembly reference?) C:\Users\chobo2\Downloads\DotNetOpenAuth-3.4.6.10357\DotNetOpenAuth-3.4.6.10357\Samples\OpenIdOfflineProvider\TextBoxTextWriter.cs 73 4 OpenIdOfflineProvider

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  • How can you calculate the X/Y coordinate to zoom to

    - by Mark
    Im writing a WPF application that has a zoom and pan ability, but what I want to also implement is the ability to zoom and pan "automatically" (via a button click). I have the methods all defined to zoom and pan, but Im having trouble telling the app the desired X/Y coordinates for the panning. Basically, I know that I want the control to be centered at a desired zoom level (say zoomed in 6X times), but the panning destination point is NOT the center point of the control because after the zooming, its been scaled. Does anyone know a way of calculating the desired X/Y position to pan to, taking into account the zooming as well? Do I just scale the desired destination Point? It doesnt seem to work for me... Thanks a lot

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  • How to prevent traffic to/from a slow Cassandra node using Python

    - by Sergio Ayestarán
    Intro: I have a Python application using a Cassandra 1.2.4 cluster with a replication factor of 3, all reads and writes are done with a consistency level of 2. To access the cluster I use the CQL library. The Cassandra cluster is running on rackspace's virtual servers. The problem: From time to time one of the nodes can become slower than usual, in this case I want to be able to detect this situation and prevent making requests to the slow node and if possible to stop using it at all (this should theoretically be possible since the RF is 3 and the CL is 2 for every single request). The questions: What's the best way of detecting the slow node from a Python application? Is there a way to stop using one of the Cassandra nodes from Python in this scenario without human intervention? Thanks in advance!

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  • Practices for Foreground/Background threads in .NET

    - by Andrei Taptunov
    I work with in-house legacy communication framework which exposes some high level abstractions. These abstractions are wrappers with some logic around .NET threads. When I looked at code I've noticed that some abstractions are wrappers around foreground threads while others are wrappers around background threads. The sad thing is that I don't see any logic why in some cases foreground threads are used and background in other cases. Are there any guidelines or patterns & practices when it's better to choose one over another on server side and client side (I believe there should be some difference)?

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  • ASP.NET MVC 2 relative paths for scripts and styles

    - by Tomaszewski
    Hi, having this really silly problem in ASP.NET MVC 2 with .NET 4. I need to test other pages using localhost, but sometimes I need to show the page to some else on another computer and so need to path out to my machine. In doing so, I need to use relative paths for my and tags. When I test through VS, I use relative path: <script src="../../Scripts/somejavascript.js"></script> <link href="../../Styles/somestyle.css" /> However, when I publish to local IIS, I'm having all sorts of problems beacuse the Scripts and Styles folder are at the same directory level, but it seems like I have to path out differently. For example, in the scenario above the styles will be picked up but the JavaScript won't be. Any ideas on how best to path out, relatively using MVC 2?

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  • FFMPEG based Theora Video Decoder performance??

    - by goldenmean
    Hi, I am in process of porting and optimization of the theora video decoder in the ffmpeg-0.5 package to ARM-Cortex-A8 -Neon processor @ 667 MHz. I am looking for some target estimate for frames per second the decoder library alone should achieve after full optimization (C level and Neon assembly / Intrinsics) for 720x480 Progressive content for a 2Mbps stream. I have a Real Video 9 decoder on cortex-A8 which gives around 40 fps for the same stream above.(720x480, 2Mbps) How can i extrapolate this data based on relative complexities of RV9 and Theora and get a fps estimate for theora decoder Cortex-A8? I am aware the performance depends upon the cache configuration of the h/w, etc...,but any Any pointers will help. Thanks, -AD

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