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• Rails 3 memory issue

  - by Erik

  Hello! I'm developing a new site based on Ruby on Rails 3 beta. I knew this might be a bad idea considering it's just beta, but I still thought it might work. Now though I'm having HUGE problems with Rails consuming huge ammounts of memory. For my application today it consumes about 10 mb per request and it doesn't seem to release it either. So I thought this might be because of bloat in my application and thus I created a test app just to compare. For my test app I just generated a model with a scaffold and then created about 20 records on this model. I then went to the index page and hit refresh and I could immediately see memory taking off! Less than my app but still about 1-3 mb per request. I'm working in OSX Leopard, with Ruby 1.8.7, Rails 3.0.0.beta and a SQLLite db for development. Does anyone recognize my problem? I would really appreciate some help here. :/ Thanks!

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• Project with multiple binaries in Eclipse CDT

  - by Robert Schneider

  I think it is quite normal to have more than one binary in a project. However, with Eclipse CDT I don't know how to set up the IDE to get things done. I know I can create several projects - one per binary. And I know I can set the dependencies per project. However, I cannot regard them as one project in Eclipse. If I'd like to share the code with a version control system (like svn), each developer has to import the projects separately. What I miss is something like the Solution (sln file) in Visual Studio. Should I create a single project and create the make files by myself? I haven't tried it out yet, but there is this 'project set' which can be ex- and imported. Is this the solution? Can this be put into version control? My goal it to put everything under version control, not only subprojects. I cannot imagine that CDT makes only sense for single-binary applications. How can I work properly?

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• LINQ Normalizing data

  - by Brennan Mann

  I am using an OMS that stores up to three line items per record in the database. Below is an example of an order containing five line items. Order Header Order Detail Prod 1 Prod 2 Prod 3 Order Detail Prod 4 Prod 5 One order header record and two detail records. My goal is have a one to one relation for details records(i.e., one detail record per line item). In the past, I used an UNION ALL SQL statement to extract the data. Is there a better approcach to this problem using LINQ? Below is my first attempt at using LINQ. Any feedback, suggestions or recommendations would greatly be appreciated. For what I have read, an UNION statement can tax the process? var orderdetail = (from o in context.ORDERSUBHEADs select new { edpNo = o.EDPNOS_001, price = o.EXTPRICES_001, qty = o.ITEMQTYS_001 } ).Union(from o in context.ORDERSUBHEADs select new { edpNo = o.EDPNOS_002, price = o.EXTPRICES_002, qty = o.ITEMQTYS_002 } ).Union(from o in context.ORDERSUBHEADs select new { edpNo = o.EDPNOS_003, price = o.EXTPRICES_003, qty = o.ITEMQTYS_003 });

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• Visual C++ Testing problem

  - by JamesMCCullum

  Hi there I have installed VisualAssert and cFix. I have been using Visual Studio C++ and programming in CLI/C++. I have a working Chess Game Program that works perfectly by itself.....and I have been studying testing and have many examples(with tutorials) I have found on the net, that compile and run in Visual Studio..... But as soon as I try and implement those tests on my chess game......I get this problem.... This is what its telling me 1>------ Build started: Project: ChessRound1, Configuration: Debug Win32 ------ 1>Compiling... 1>stdafx.cpp 1>C:\Program Files\VisualAssert\include\cfixpe.h(137) : error C3641: 'CfixpCrtInitEmbedding' : invalid calling convention '__cdecl ' for function compiled with /clr:pure or /clr:safe 1>C:\Program Files\VisualAssert\include\cfixpe.h(235) : error C4394: 'CfixpCrtInitEmbeddingRegistration' : per-appdomain symbol should not be marked with __declspec(allocate) 1>C:\Program Files\VisualAssert\include\cfixpe.h(235) : error C2393: 'CfixpCrtInitEmbeddingRegistration' : per-appdomain symbol cannot be allocated in segment '.CRT$XCX' 1>C:\Program Files\VisualAssert\include\cfixpe.h(244) : error C2440: 'initializing' : cannot convert from 'void (__cdecl *)(void)' to 'const CFIX_CRT_INIT_ROUTINE' 1> Address of a function yields __clrcall calling convention in /clr:pure and /clr:safe; consider using __clrcall in target type 1>C:\Program Files\VisualAssert\include\cfixpe.h(137) : error C3641: 'CfixpCrtInitEmbedding' : invalid calling convention '__cdecl ' for function compiled with /clr:pure or /clr:safe 1>Build log was saved at "file://c:\Users\james\Documents\Visual Studio 2008\Projects\ChessRound1\ChessRound1\Debug\BuildLog.htm" 1>ChessRound1 - 4 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== Any ideas what I'm doing wrong? Im working with windows forms and have a heap of cpp source files. Any help would be appreciated. Thanks

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• Linq to sql DataContext cannot set load options after results been returned

  - by David Liddle

  I have two tables A and B with a one-to-many relationship respectively. On some pages I would like to get a list of A objects only. On other pages I would like to load A with objects in B attached. This can be handled by setting the load options DataLoadOptions options = new DataLoadOptions(); options.LoadWith<A>(a => a.B); dataContext.LoadOptions = options; The trouble occurs when I first of all view all A's with load options, then go to edit a single A (do not use load options), and after edit return to the previous page. I understand why the error is occurring but not sure how to best get round this problem. I would like the DataContext to be loaded up per request. I thought I was achieving this by using StructureMap to load up my DataContext on a per request basis. This is all part of an n-tier application where my Controllers call Services which in turn call Repositories. ForRequestedType<MyDataContext>() .CacheBy(InstanceScope.PerRequest) .TheDefault.Is.Object(new MyDataContext()); ForRequestedType<IAService>() .TheDefault.Is.OfConcreteType<AService>(); ForRequestedType<IARepository>() .TheDefault.Is.OfConcreteType<ARepository>(); Here is a brief outline of my Repository public class ARepository : IARepository { private MyDataContext db; public ARepository(MyDataContext context) { db = context; } public void SetLoadOptions(DataLoadOptions options) { db.LoadOptions = options; } public IQueryable<A> Get() { return from a in db.A select a; } So my ServiceLayer, on View All, sets the load options and then gets all A's. On editing A my ServiceLayer should spin up a new DataContext and just fetch a list of A's. When sql profiling, I can see that when I go to the Edit page it is requesting A with B objects.

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• How to Sort ip addresses and merge two files in efficent manner using perl or *nix commands?

  - by berkay

  (*) This problem should be done in perl or any *nix commands. i'm working on a program and efficiency matters.The file1 consists ip addresses and some other data: index ipsrc portsrc ip dest port src 8 128.3.45.10 2122 169.182.111.161 80 (same ip src and dst) 9 128.3.45.10 2123 169.182.111.161 22 (same ip src and dst) 10 128.3.45.10 2124 169.182.111.161 80 (same ip src and dst) 19 128.3.45.128 62256 207.245.43.126 80 and other file2 looks like (file1 and file2 are in different order) 128.3.45.10 ioc-sea-lm 169.182.111.161 microsoft-ds 0 0 3 186 3 186 128.3.45.10 hypercube-lm 169.182.111.161 https 0 0 3 186 3 186 128.3.44.112 pay-per-view 148.184.171.6 netbios-ssn 0 0 3 186 3 186 128.3.45.12 cadabra-lm 148.184.171.6 microsoft-ds 0 0 3 186 3 186 1- SORT file1 using IP address in second column and SORT file2 using IP address in first column 2- Merge the 1st, 3rd and 5th columns of File1 with File 2 i need to create a new file which will look: 128.3.45.10 ioc-sea-lm 169.182.111.161 microsoft-ds 0 0 3 186 3 186 --> 2122 80 8 128.3.45.10 hypercube-lm 169.182.111.161 https 0 0 3 186 3 186 --> 2123 22 9 128.3.44.112 pay-per-view 148.184.171.6 netbios-ssn 0 0 3 186 3 186 --> * * * 128.3.45.12 cadabra-lm 148.184.171.6 microsoft-ds 0 0 3 186 3 186 --> * * * basically port numbers and index number will be added.

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• How can I stop an auto-generated Linq to SQL class from loading ALL data?

  - by Gary McGill

  I have an ASP.NET MVC project, much like the NerdDinner tutorial example. (I'm using MVC 2, but followed the NerdDinner tutorial in order to create it). As per the instructions in part 3 of the tutorial, I've created a Linq-to-SQL model of my database by creating a "Linq to SQL Classes" (.dbml) surface, and dropping my database tables onto it. The designer has automatically added relationships between the generated classes based on my database tables. Let's say that my classes are as per the NerdDinner example, so I have Dinner and RSVP tables, where each Dinner record is associated with many RSVP records - hence in the generated classes, the Dinner object has a RSVPs property which is a list of RSVP objects. My problem is this: it appears (and I'd be gladly proved wrong on this) that as soon as I access a Dinner object, it's loading all of the corresponding RSVP objects, even if I don't use the RSVPs member. First question: is this really the default behavior for the generated classes? In my particular situation, the object graph contains many more tables (which have an order of magnitude more records), and so this is disastrous behaviour - I'd be loading tons of data when all I want to do is show the details of a single parent record. Second question: are there any properties exposed through the designer UI that would let me modify this behavior? (I can't find any). Third question: I've seen a description of how to control the loading of related records in a DataContext by using a DataShape object associated with the DataContext. Is that what I'm meant to do, and if so are there any tutorials like the NerdDinner one that would show not only how to do it, but also suggest a 'pattern' for normal use?

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• How can I stop an auto-generated Linq to SQL class from loading ALL data?

  - by Gary McGill

  DUPLICATE of http://stackoverflow.com/questions/2433422/how-can-i-stop-an-auto-generated-linq-to-sql-class-from-loading-all-data post answers there! I have an ASP.NET MVC project, much like the NerdDinner tutorial example. (I'm using MVC 2, but followed the NerdDinner tutorial in order to create it). As per the instructions in part 3 of the tutorial, I've created a Linq-to-SQL model of my database by creating a "Linq to SQL Classes" (.dbml) surface, and dropping my database tables onto it. The designer has automatically added relationships between the generated classes based on my database tables. Let's say that my classes are as per the NerdDinner example, so I have Dinner and RSVP tables, where each Dinner record is associated with many RSVP records - hence in the generated classes, the Dinner object has a RSVPs property which is a list of RSVP objects. My problem is this: it appears (and I'd be gladly proved wrong on this) that as soon as I access a Dinner object, it's loading all of the corresponding RSVP objects, even if I don't use the RSVPs member. First question: is this really the default behavior for the generated classes? In my particular situation, the object graph contains many more tables (which have an order of magnitude more records), and so this is disastrous behaviour - I'd be loading tons of data when all I want to do is show the details of a single parent record. Second question: are there any properties exposed through the designer UI that would let me modify this behavior? (I can't find any). Third question: I've seen a description of how to control the loading of related records in a DataContext by using a DataShape object associated with the DataContext. Is that what I'm meant to do, and if so are there any tutorials like the NerdDinner one that would show not only how to do it, but also suggest a 'pattern' for normal use?

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• ASP.NET MVC and NHibernate coupling

  - by Ben

  I have just started learning NHibernate. Over the past few months I have been using IoC / DI (structuremap) and the repository pattern and it has made my applications much more loosely coupled and easier to test. When switching my persistence layer to NHibernate I decided to stick with my repositories. Currently I am creating a new session on each method call but of course this means that I can not benefit from lazy loading. Therefore I wish to implement session-per-request but in doing so this will make my web project dependent on NHibernate (perhaps this is not such a bad thing?). I was planning to inject ISession into my repositories and create and dispose sessions on beginrequest/endrequest events (see http://ayende.com/Blog/archive/2009/08/05/do-you-need-a-framework.aspx) Is this a good approach? Presumably I cannot use session-per-request without having a reference to NHibernate in my web project? Having the web project dependent on NHibernate prompts my next (few) questions - why even bother with the repository? Since my web app is calling services that talk to the repositories, why not ditch the repositories and just add my NHibernate persistance code inside the services? And finally, is there really any need to split out into so many projects. Is a web project and an infrastructure project sufficient? I realise that I have veered off a bit from my original question but it seems that everyone seems to have their own opinion on these topics. Some people use the repository pattern with NHibernate, some don't. Some people stick their mapping files with the related classes, others have a separate project for this. Many thanks, Ben

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• PHP Performance Metrics

  - by bigstylee

  I am currently developing a PHP MVC Framework for a personal project. While I am developing the framework I am interested to see any notable performance by implementing different techniques for optimization. I have implemented a crude BenchMark class that logs mircotime. The problem is I have no frame of reference for execution times. I am very near the beginnig of this project with a database connection and a few queries but no output (bar some debugging text and BenchMark log). I have a current execution time of 0.01917 seconds. I was expecting this to be lower but as I said before I have no frame of reference. I appreciate there are many variables to take into account when juding performance but I am hoping to find some sort of metric to a) techniques to measure performance for example requests per second and b) compare results for example; how a "moderately" sized PHP application on a "standard" webserver will perform. I appreciate "moderately" and "standard" are very subjective words so perhaps a table of known execution times for a particular application (eg StackOverFlow's executing time). What are other techniques of measuring performance are there other than execution time? When looking at MVC Framework Performance Comparisom it talks about Requests Per Second (RPS). How is this calculated? I am guessing with my current execution time of 0.01917 seconds can handle 52 RPS (= 1 / 0.01917 ). This seems to be significantly lower than that quoted on the graph especially when you consider my current limited funcitonality.

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• Ninject InThreadScope Binding

  - by e36M3

  I have a Windows service that contains a file watcher that raises events when a file arrives. When an event is raised I will be using Ninject to create business layer objects that inside of them have a reference to an Entity Framework context which is also injected via Ninject. In my web applications I always used InRequestScope for the context, that way within one request all business layer objects work with the same Entity Framework context. In my current Windows service scenario, would it be sufficient to switch the Entity Framework context binding to a InThreadScope binding? In theory when an event handler in the service triggers it's executed under some thread, then if another file arrives simultaneously it will be executing under a different thread. Therefore both events will not be sharing an Entity Framework context, in essence just like two different http requests on the web. One thing that bothers me is the destruction of these thread scoped objects, when you look at the Ninject wiki: .InThreadScope() - One instance of the type will be created per thread. .InRequestScope() - One instance of the type will be created per web request, and will be destroyed when the request ends. Based on this I understand that InRequestScope objects will be destroyed (garbage collected?) when (or at some point after) the request ends. This says nothing however on how InThreadScope objects are destroyed. To get back to my example, when the file watcher event handler method is completed, the thread goes away (back to the thread pool?) what happens to the InThreadScope-d objects that were injected? EDIT: One thing is clear now, that when using InThreadScope() it will not destroy your object when the handler for the filewatcher exits. I was able to reproduce this by dropping many files in the folder and eventually I got the same thread id which resulted in the same exact Entity Framework context as before, so it's definitely not sufficient for my applications. In this case a file that came in 5 minutes later could be using a stale context that was assigned to the same thread before.

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• What is wrong with my Basic Authentication in my Browser?

  - by Pure.Krome

  Hi folks, i'm trying to goto the following url :- http://user1:pass1@localhost:1234/api/users?format=xml nothing to complex. Notice how i've got the username/password in the url? this, i believe, is for basic authentication. When I do that, the Request Headers are MISSING the 'Authorize' header. Er... that's not right :( I have anonymous authentication only setup on the site. I don't want to have anon off and basic turned on .. because not all of the site requires basic.. only a few action methods. So .. why is this not working? Is this something to do with the fact my code is not sending a 401 challenge or some crap? For What It's Worth, my site is ASP.NET MVC1 running on IIS7 (and the same thing happens when i run it on cassini). Update: If this is an illegal way of calling a resource using basic auth (ala security flaw) .. then is this possible to do, for an ASP.NET MVC website .. per action method (and not the entire site, per say)?

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• Nonetype object has no attribute '__getitem__'

  - by adohertyd

  I am trying to use an API wrapper downloaded from the net to get results from the new azure Bing API. I'm trying to implement it as per the instructions but getting the runtime error: Traceback (most recent call last): File "bingwrapper.py", line 4, in <module> bingsearch.request("affirmative action") File "/usr/local/lib/python2.7/dist-packages/bingsearch-0.1-py2.7.egg/bingsearch.py", line 8, in request return r.json['d']['results'] TypeError: 'NoneType' object has no attribute '__getitem__' This is the wrapper code: import requests URL = 'https://api.datamarket.azure.com/Data.ashx/Bing/SearchWeb/Web?Query=%(query)s&$top=50&$format=json' API_KEY = 'SECRET_API_KEY' def request(query, **params): r = requests.get(URL % {'query': query}, auth=('', API_KEY)) return r.json['d']['results'] The instructions are: >>> import bingsearch >>> bingsearch.API_KEY='Your-Api-Key-Here' >>> r = bingsearch.request("Python Software Foundation") >>> r.status_code 200 >>> r[0]['Description'] u'Python Software Foundation Home Page. The mission of the Python Software Foundation is to promote, protect, and advance the Python programming language, and to ...' >>> r[0]['Url'] u'http://www.python.org/psf/ This is my code that uses the wrapper (as per the instructions): import bingsearch bingsearch.API_KEY='abcdefghijklmnopqrstuv' r = bingsearch.request("affirmative+action")

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• How to write text(using CGContextShowTextAtPoint) on graph x and y-axis intervals points?

  - by Rajendra Bhole

  I developed graph using NSObject class and using CGContext method. The following code displaying dynamically in X and Y-axis intervals, CGContextSetRGBStrokeColor(ctx, 2.0, 2.0, 2.0, 1.0); CGContextSetLineWidth(ctx, 2.0); CGContextMoveToPoint(ctx, 30.0, 200.0); CGContextAddLineToPoint(ctx, 30.0, 440.0); for(float y = 400.0; y >= 200.0; y-=30) { CGContextSetRGBStrokeColor(ctx, 2.0, 2.0, 2.0, 1.0); CGContextMoveToPoint(ctx, 28, y); CGContextAddLineToPoint(ctx, 32, y); CGContextStrokePath(ctx); //CGContextClosePath(ctx); } CGContextMoveToPoint(ctx, 10, 420.0); CGContextAddLineToPoint(ctx, 320, 420.0); //CGContextAddLineToPoint(ctx, 320.0, 420.0); //CGContextStrokePath(ctx); for(float x = 60.0; x <= 260.0; x+=30) { CGContextSetRGBStrokeColor(ctx, 2.0, 2.0, 2.0, 1.0); CGContextMoveToPoint(ctx, x, 418.0); CGContextAddLineToPoint(ctx, x, 422.0); CGContextStrokePath(ctx); CGContextClosePath(ctx); } I want to write the dynamic text on the X and Y-axis lines near the intervals (like X-axis is denoting number of days per week and Y-axis denoting something per someting)? Thanks.

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• Technically why is processes in Erlang more efficient than OS threads?

  - by Jonas

  Spawning processes seam to be much more efficient in Erlang than starting new threads using the OS (i.e. by using Java or C). Erlang spawns thousands and millions of processes in a short period of time. I know that they are different since Erlang do per process GC and processes in Erlang are implemented the same way on all platforms which isn't the case with OS threads. But I don't fully understand technically why Erlang processes are so much more efficient and has much smaller memory footprint per process. Both the OS and Erlang VM has to do scheduling, context switches and keep track of the values in the registers and so on... Simply why isn't OS threads implemented in the same way as processes in Erlang? Does it have to support something more? and why does it need a bigger memory footprint? Technically why is processes in Erlang more efficient than OS threads? And why can't threads in the OS be implemented and managed in the same efficient way?

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• Ideas for a rudimentary software licensing implementation

  - by Ross

  I'm trying to decide how to implement a very basic licensing solution for some software I wrote. The software will run on my (hypothetical) clients' machines, with the idea being that the software will immediately quit (with a friendly message) if the client is running it on greater-than-n machines (n being the number of licenses they have purchased). Additionally, the clients are non-tech-savvy to the point where "basic" is good enough. Here is my current design, but given that I have little to no experience in the topic, I wanted to ask SO before I started any development on it: A remote server hosts a MySQL database with a table containing two columns: client-key and license quantity The client-side application connects to the MySQL database on startup, offering it's client-key that I've put into a properties file packaged into the distribution (I would create a new distribution for each new client) Chances are, I'll need a second table to store validation history, so that with some short logic, the software can decide if it can be run on a given machine (maybe a sliding window of n machines using the software per 24 hours) If the software cannot establish a connection to the MySQL database, or decides that it's over the n allowed machines per day, it closes The connection info for the remote server hosting the MySQL database should be hard-coded into the app? (That sounds like a bad idea, but otherwise they could point it to some other always-validates-to-success server) I think that about covers my initial design. The intent being that while it certainly isn't full-proof, I think I've made it at least somewhat difficult to create an easily-sharable cracking solution. Also, I can easily adjust the license amount for a given client/key pair. I gotta figure this has been done a million times before, so tell me about a better solution that's just as simple to implement and provides the same (low) amount of security. In the event that external libraries are used, I prefer Java, as that's what the software has been written in.

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• Accuracy of OpenGL ES Instrument

  - by Rob Jones

  I'm developing a game for the iPhone. I've decided that 30FPS is plenty so I've written some code that only allows the App to present the render buffer every 1/30 of a second. When I tried to verify this with Instruments I got varying information. On an iPod Touch (2009 edition, 32G) it reports 30 FPS for Core Animation Frames Per Second. On an iPhone 3G I get wildly varying results. And not just less than 30 FPS. I see 30 FPS on a regular basis. It actually seems to hang closer to 36-39. To investigate this anomaly I added my own FPS to the app and update it once per second. I stays right at 29 FPS on both devices. So, does anyone have any suggestions as to what might be going on? I expect Instruments to be accurate so it really concerns me that it appears inaccurate. It makes me think I have a bug somewhere, but I sure can't find it.

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• Javascript : Submitting a form outside the actual form doesn't work

  - by Ben Fransen

  Hello all, I'm trying to achieve a fairly easy triggering mechanism for deleting multiple items from a tablegrid. If a user has enough access he/she is able to delete multiple users from a table. In the table I have set up checkboxes, one per row/user. The name of the checkboxes is UsersToDeletep[], and the value per row is the unique UserID. When a user clicks the button 'Delete selected users' a simple validation takes place to make sure at least one checkbox is selected. After that I call my simple function Submit(form). The function works perfectly when called within the form-tags, where I also use it to delete a single user. The function: function Submit(form) { document.forms[form].submit(); } I've also alerted document.forms[form]. The result is, as expected [object HTMLFormElement]. But for some reason the form just won't submit and a pagereload takes place. I'm a bit confused and can't seem to figure out what I'm doing wrong. Can anyone point me in the right direction? Thanks in advance! Ben

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• Nginx rewrite for link shortener and Wordpress

  - by detusueno

  I'm a complete newbie to Nginx, so much so that I followed a online guide to do most of my server setup. I'm trying to learn but I'm still a ways away from understanding it all. So what I'm trying to create is a link shortener that redirects (example.com/x) to (example.com/short.php?id=x). Keep in mind that I'm also running a Wordpress blog on the same domain and plan on using the redirects/shortening for external links. The guide has so far had me add the following rewrites to enable Wordpress pretty URLs: # WordPress pretty URLs: (as per dominiek.com) if (-f $request_filename) { break; } if (-d $request_filename) { break; } rewrite ^(.+)$ /index.php?q=$1 last; # Enable nice permalinks for WordPress: (as per Yawn.it) error_page 404 = //index.php?q=$uri; And if it matters any, it was saved at (/usr/local/nginx/conf/wordpress_params.regular). Additionally, my Wordpress link structure adds "news" to all internal links (example.com/news/post-blah, example.com/news/category, ect.). What's the best way to tackle this setup?

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• A map and set which uses contiguous memory and has a reserve function

  - by edA-qa mort-ora-y

  I use several maps and sets. The lack of contiguous memory, and high number of (de)allocations, is a performance bottleneck. I need a mainly STL-compatbile map and set class which can use a contiguous block of memory for internal objects (or multiple blocks). It also needs to have a reserve function so that I can preallocate for expected sizes. Before I write my own I'd like to check what is available first. Is there something in Boost which does this? Does somebody know of an available implementation elsewhere? Intrusive collection types are not usable here as the same objects need to exist in several collections. As far as I know STL memory pools are per-type, not per instance. These global pools are not efficient with respect to memory locality in mutli-cpu/core processing. Object pools don't work as the types will be shared between instance but their pool should not. In many cases a hash map may be an option in some cases.

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• Log off from Remote Desktop Session does not closing Session, showing the login screen again on Wind

  - by Santhosha

  Hi As per requirement we have written one custom GINA. I have observed one interesting behavior in Windows XP 32 Bit(SP2). Customized GINA internally calls windows default Windows GINA(msgina.dll) and shows one extra window as per our requirement. I used to do remote desktop to XP machine from my machine. After replacing Windows GINA with customized GINA I tried to log off from the XP Machine(I am Using Remote Desktop Connection to log in), Log off completes successfully(After showing saving your settings, Closing network connections etc) and I will get log in screen which we get during log on, this is not expected comapred to other flavors of Windows OD. Where as in other operating systems such as Windows XP 64 Bit/ Windows 2003 32/64 Bit even after replacing the Windows Gina with custom GINA remote desktop session closes after log off from the machine. I have tried installing Novell GINA on Windows XP 32 Bit but i have not find any issue with that. I have Tried upgrading XP SP2 to SP3, still i am facing the same issue. Whether anyone faced Such issues when worked with Windows GINA? Thanks in advance Santhosha K S

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• sql query - how to apply limit within group by

  - by Raj

  hey guys assuming i have a table named t1 with following fields: ROWID, CID, PID, Score, SortKey it has the following data: 1, C1, P1, 10, 1 2, C1, P2, 20, 2 3, C1, P3, 30, 3 4, C2, P4, 20, 3 5, C2, P5, 30, 2 6, C3, P6, 10, 1 7, C3, P7, 20, 2 what query do i write so that it applies group by on CID, but instead of returning me 1 single result per group, it returns me a max of 2 results per group. also where condition is score = 20 and i want the results ordered by CID and SortKey. If I had to run my query on above data, i would expect the following result: RESULTS FOR C1 - note: ROWID 1 is not considered as its score < 20 C1, P2, 20, 2 C1, P3, 30, 3 RESULTS FOR C2 - note: ROWID 5 appears before ROWID 4 as ROWID 5 has lesser value SortKey C2, P5, 30, 2 C2, P4, 20, 3 RESULTS FOR C3 - note: ROWID 6 does not appear as its score is less than 20 so only 1 record returned here C3, P7, 20, 2 IN SHORT, I WANT A LIMIT WITHIN A GROUP BY. I want the simplest solution and want to avoid temp tables. sub queries are fine. also note i am using sqlite for this

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• Specific compiler flags for specific files in Xcode

  - by Jasarien

  I've been tasked to work on a project that has some confusing attributes. The project is of the nature that it won't compile for the iPhone Simulator And the iPhone Device with the same compile settings. I think it has to do with needing to be specifically compiled for x86 or arm6/7 depending on the target platform. So the project's build settings, when viewed in Xcode's Build Settings view doesn't enable me to set specific compiler flags per specific files. However, the previous developer that worked on this project has somehow declared the line: CE7FEB5710F09234004DE356 /* MyFile.m in Sources */ = {isa = PBXBuildFile; fileRef = CE7FEB5510F09234004DE356 /* MyFile.m */; settings = {COMPILER_FLAGS = "-fasm-blocks -marm -mfpu=neon"; }; }; Is there any way to do this without editing the project file by hand? I know that editing the project file can result in breaking it completely, so I'd rather not do that, as I obviously don't know as much as the previous developer. So to clarify, the question is: The build fails when compiling for simulator unless I remove the -fasm-blocks flag. The build fails when compiling for device unless I add the -fasm-blocks flag. Is there a way to set this flag per file without editing the project file by hand?

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• Rotate a feature Image in Open Layers - Javascript variable from JSON.

  - by Ozaki

  I have an open layers map. It adds and removes my "imageFeature" every 10secs or so. I have a JSON feed that gives me the rotation that I need, I have a request to get that rotation and set it as a variable of rotationv. Everything works but the fact when the image is recreated it does not update the rotation. My code is as follows: JSON request: var rotationv = (function () { rotationv = null; $.ajax({ 'async': false, 'global': true, 'url': urldefault, 'dataType': "json", 'success': function (data) { rotationv = data.rotation; } }); return rotationv })(); Creating image feature: imageFeature = new OpenLayers.Feature.Vector( new OpenLayers.Geometry.Point(mylon, mylat), { rotation: rotationv } ); The image is set in the styling elsewhere. Why does this not rotate my image? Debugging with firebug I now notice that "rotationv" is updating as per it should be. But when the point is destroyed then added again it does not apply the new rotation... Add: I realised that the "image" is applied as per the layer. So I need to figure out how to re apply the stylemap to the layer so it will trigger the "update" on the page. //redefine layer 2 so it can be updated// //test.js is just a 0.0 testref// var layer2 = new OpenLayers.Layer.GML("Layer 2", "test.js", { format: OpenLayers.Format.GeoJSON, styleMap: styleMap }); But even if I add the above into my function still no luck. Included map.addLayers([layer2]); into the function as well.

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• How to get levels for Fry Graph readability formula?

  - by Vic

  Hi, I'm working in an application (C#) that applies some readability formulas to a text, like Gunning-Fog, Precise SMOG, Flesh-Kincaid. Now, I need to implement the Fry-based Grade formula in my program, I understand the formula's logic, pretty much you take 3 100-words samples and calculate the average on sentences per 100-words and syllables per 100-words, and then, you use a graph to plot the values. Here is a more detailed explanation on how this formula works. I already have the averages, but I have no idea on how can I tell my program to "go check the graph and plot the values and give me a level." I don't have to show the graph to the user, I only have to show him the level. I was thinking that maybe I can have all the values in memory, divided into levels, for example: Level 1: values whose sentence average are between 10.0 and 25+, and whose syllables average are between 108 and 132. Level 2: values whose sentence average are between 7.7 and 10.0, and .... so on But the problem is that so far, the only place in which I have found the values that define a level, are in the graph itself, and they aren't too much accurate, so if I apply the approach commented above, trying to take the values from the graph, my level estimations would be too much imprecise, thus, the Fry-based Grade will not be accurate. So, maybe any of you knows about some place where I can find exact values for the different levels of the Fry-based Grade, or maybe any of you can help me think in a way to workaround this. Thanks

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