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  • How to implement didReceiveMemoryWarning ?

    - by hib
    Hello all , I have developed a simple location aware iPhone application which is functionally working very well to our expectations except in the low memory condition of the phone . In low memory condition of the phone my app just got crashes and If I increases the phone memory by freeing up some space it again start working well without any crash . when I do some googling on the problem I found that in the low memory conditions the os will send didReceiveMemoryWarning to all the controllers in the current hierarchy so that each one of them should implement didReceiveMemoryWarning method and also set nil to iboutlet for the view that is currently not visible . I have also read somewhere that if the view for that controller is not visible the method setView with nil parameter will be called and if there are some outlet variables attached to view there will be problem in removing them. So with all these fundas what is the best to handle low level memory condition raised by the Iphone by implementing the didReceiveMemoryWarning and viewDidUnload methods. Please give a proper example or link if possible for the solution of the above problem . thanks.

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  • Upgrading to IIS7 stopped Firefox from receiving cookies?

    - by Ted Spence
    Our website has been using IIS6 for a long time. We test on IE8, Firefox, and Chrome. All browsers worked fine. We recently did an upgrade to IIS7, and Chrome and IE8 continue to work normally, but Firefox appears to be unable to get the ASP session cookie. As a result, when our code checks the Session[] object, we see nothing, we think the user has logged out, and the site resets your session. Does anyone know why upgrading to IIS7 would cause this behavior in Firefox? We've: 1) Reverted our application pool back to classic mode (no change); 2) Added a dummy value in the Global.asax object (no change); and 3) changed the web.config file from "authentication cookieless=autodetect" to "cookieless=usercookie" and back (no change).

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  • PHP: How to dynamically add to http_build_query?

    - by oni-kun
    I have a scraping object basically. I want to be able to add POST variables to it like $obj->addvar('Name', 'Value'); What I have now is this: function addvar($var, $val) { $postvars[] = Array($var=>$val); } function initiate() { $this->q = $postvars; } if(!empty($this->post)) { $this->params = http_build_query($q); } I haven't tested because it's too incomplete, But would my addvar() function work? How on earth do I append a key+value to the array so http_build_query would accept it? IE (this is what I want): $obj->addvar('username', 'abc'); $obj->addvar('password', 'foobar'); $obj->send(); //..

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  • Tricks to avoid losing motivation?

    - by AareP
    Motivation is a tricky thing to upkeep. Once I thought that ambitious projects will keep programmer motivated, and too simple tasks will hinder his motivation. Now I have plenty of experience with small and large projects, desktop/web/database programming, c++/c#/java/php languages, oop/non-oop paradigms, day-job/free-time programming.. but I still can't answer the question of motivation. Which programming tasks I like, and which don't? It seems to depend on too many variables. One thing remains constant though. It's that starting everything from scratch is always more motivating than extending some existing system. Unfortunately it's hard to use this trick in productive programming. :) So my question is, what tricks programmer can use to stay motivated? For example should we use pen and paper as much as possible, in order not to get fed up with monitor and keyboard?

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  • Include params/request information in Rails logger?

    - by Dan Hill
    Hi everyone, I'm trying to get some more information into my Rails logs, specifically the requested URI or current params, if available (and I appreciate that they won't always be). However I just don't seem able to. Here's what I've done so far: #config/environments/production.rb config.logger = Logger.new(config.log_path) config.log_level = :error config.logger.level = Logger::ERROR #config/environment.rb class Logger def format_message(level, time, progname, msg) "**********************************************************************\n#{level} #{time.to_s(:db)} -- #{msg}\n" end end So I can customize the message fine, yet I don't seem to be able to access the params/request variables here. Does anyone know if this is possible, and if so how? Or if there's a better way to get this information? (Perhaps even something Redis based?) Thanks loads, Dan

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  • Boolean Expression Evaluation in Java

    - by Trilok
    Hey everyone, Is there a relatively simpler (when compared with writing a parser) way to evaluate boolean expressions in Java? I do not want to use the JEP library. I have a String expression something like: (x 4 || x < 8 && p 6) [ I will replace the variables with values. Is there a way by which I can evaluate this expression? The problem is, this can be any level deep. So, writing a parser would be really complex. Thanks

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  • Cygwin command not found bad characters found in .bashrc 357\273\277

    - by mytwocents
    Hello, I'm new to Cygwin, I just installed it and attempted to set some simple environment variables. However, when I open the command shell, I get the error "#357\273\277 command not found" I found an article that discusses what the problem is and how to "discover" the hidden bad character: http://mblog.lib.umich.edu/DataDiscussions/archives/2010/01/index.html but I don't know how to resolve the issue by removing the character (which I validated was a problem in my .bashrc file using the od command). I attempted to change the preferences view in Notepad++ to UTF-8 and ANSI to no avail, but the file was not altered at all. Any help would be appreciated...

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  • Interpolating 2d data that is piecewise constant on faces

    - by celil
    I have an irregular mesh which is described by two variables - a faces array that stores the indices of the vertices that constitute each face, and a verts array that stores the coordinates of each vertex. I also have a function that is assumed to be piecewise constant over each face, and it is stored in the form of an array of values per face. I am looking for a way to construct a function f from this data. Something along the following lines: faces = [[0,1,2], [1,2,3], [2,3,4] ...] verts = [[0,0], [0,1], [1,0], [1,1],....] vals = [0.0, 1.0, 0.5, 3.0,....] f = interpolate(faces, verts, vals) f(0.2, 0.2) = 0.0 # point inside face [0,1,2] f(0.6, 0.6) = 1.0 # point inside face [1,2,3] The manual way of evaluating f(x,y) would be to find the corresponding face that the point x,y lies in, and return the value that is stored in that face. Is there a function that already implements this in scipy (or in matlab)?

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  • DirectSound affects system volume on WinXP

    - by Anton
    Hello guys, I'm currently developing an audio engine that is used in voice network chat software. Everything is working fine - capture/playback/mixing channels. The problem is in using it under Windows XP. I've been getting user reports with information that their global system volume is set to zero after launching the application. I'm assuming that happens because of WaveOut/DSound conflict. How can I force DSound not to affect system volume? Playback device is initialized: DirectSoundCreate8(&GUID, &pAudio, NULL); and: pAudio-SetCooperativeLevel(parentWnd, DSSCL_PRIORITY); I'm currently not able to debug the application, cause I'm using Vista and everything is OK. Hope you can help me with this issue! Thanks a Lot! Regards, Anton.

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  • asp.net 2.0 session timeout

    - by d3020
    I apologize in advance for this likely being asked before. I have an asp.net 2.0 web application and am trying to set the session timeout. My first attempt was to add this to the web.config. < sessionState mode="InProc" timeout="300" Users would tell me though that after about 20 minutes of being idle and then trying to do something again on the site they'd be redirected back to the login page. So now I'm trying timeout="60" in my < forms tag in the web.config. I also tried Session.Timeout=60 in my global.asax. Should these work? Do I need something else? Thank you for your time and help.

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  • propertyregex removes return characters in multiline

    - by javydreamercsw
    I'm using ants propertyregex method to change a property and it works fine up to a point. I'm lossing return characters. Here's what I'm trying to change: cluster.path=\ ${nbplatform.active.dir}/harness:\ ${nbplatform.active.dir}/platform:\ ${nbplatform.active.dir}/nb This is in a .properties file. So I'm trying to change it like this: <propertyregex property="cluster.path" input="${cluster.path}" regexp="nbplatform.active.dir" replace="xplatform.base" global="true" override="true"/> The stuff is replaced but I get: cluster.path= ${xplatform.base}/harness\: ${xplatform.base}/platform\: ${xplatform.base}/nb This brakes logic down the line not controlled by me (Netbeans) that uses the ':' as delimiter. Any idea?

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  • using WP_Query with custom SQL in wordpress

    - by Matt Facer
    Hi. I am writing a plugin for wordpress and I want to create my own search. I have tried to alter the wordpress search, but what I am doing is very specific with the SQL query. I am comparing lat and long coordinates and getting posts based on that. I can display posts by using the standard wpdb query, but then I don't get the other features like paging. I'd like to be able to use my SQL statement with the WP_Query function. If I'm right in thinking, I should then be able to use the paging and other features which come from the $posts global variable. Is this right?? I've googled for hours but can't find anything for plugins outside of using args to select categories etc. I simply need to send a complete SQL command - nothing else. Many thanks....

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  • When is calculating or variable-reading faster?

    - by Andreas Hornig
    hi, to be honest, I don't really know what the "small green men" in my cpu and compiler do, so I sometimes would like to know :). Currently I would like to know what's faster, so that I can design my code in a more efficient way. So for example I want to calclate something at different points in my sourcecode, when will it be faster to calculate it once and store it in a variable that's read and used for the next points it's needed and when is it faster to calculate it everytime? I think it's depending on how "complex" and "long" the calculation is and how fast then cache is, where variables are stored, but I don't have any clue what's faster :). Thanks for any reply to my tiny but important question! Andreas PS: perhaps it's important to know that I code in JAVA, but it's more a genral question.

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  • Example of configuring wxStyledTextCtrl/wxScintilla control as code editor for custom language

    - by Greg
    How do you enable actions like Goto line number Find(/Replace) There don't appear to be default triggers for these actions. There are a bunch of methods on the control, but I'm missing the first step of how to get the 'events' that would trigger these. For instance, how does one hook ctrl+f or F3/Alt+F3 in the control and make them do a find? Should I be looking at each key using EVT_STC_KEY? Would also like any examples of using this control with Custom language definition (say something similar to C++, but not C++) Auto completion (basic keywords to start, or including variables)

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  • Identify which AlertDialog triggered onClick(DialogInterface dialog, int which)

    - by Kurian
    I'm creating a dialog as follows: @Override protected Dialog onCreateDialog(int id) { switch (id) { case DIALOG_1: return new AlertDialog.Builder(this) .setTitle(R.string.s_dlg1) .setPositiveButton(android.R.string.ok, this) .create(); case DIALOG_2: ... ... } return null; } @Override public void onClick(DialogInterface dialog, int whichButton) { if (dialog == ???) { ... } else if (dialog == ???){ ... } } How do I identify which dialog triggered the onClick method? I can't declare the interface methods as in-line when creating the dialog because I want to access variables in my class. Every other interface passes some sort of id to its methods to identify which object called the method, but I can't seem to do anything with 'DialogInterface dialog'.

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  • NLog not logging messages on XP SP3 with .NET 3.5 Client Profile

    - by oltman
    I'm writing a program that is targeting the .NET 3.5 Client Profile and using NLog. I configure my logger programmatically on start up (no config file.) It works perfectly on Vista and Windows 7, but when running on a fresh install of XP SP3 with the .NET Client Profile installed, it will not log any of the variables in the layout string. For example, with the layout string set to: target.Layout = "MESSAGE: ${longdate}|${level}|${message}"; It will log "MESSAGE: | | |" Again, this only happens on XP SP3, and the logger is set to throw exceptions. Any ideas what may be causing this?

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  • Trying to understand Java Classloading

    - by Jens
    Hello, I'm currently getting to know Java and OSGi, so I've read a few books. In one particular book the class loading is described. You can download it (free and legal) from the authors page (Neil Bartlett): OSGi Book On page 9 and 10 are this pictures: It seems like there is the possibility that our class "Foo" won't use the class "Bar" of foobar.jar, but instead class "Bar" from naughty.jar. Because of the flat and global structure of the Java classpath this could be, but as far as I know you would define a package from where you want to import a certain class: import foobar.Bar This should prevent loading the wrong class, shouldn't it? Of course assuming that the package is called "foobar".

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  • internet explorer ashx file problem

    - by vondip
    My problem is a bit complicated: I am writing in c#, asp.net and using jquery I have a page that sends requests to the server using jquery's ajax method. I have a ashx file (handler) to respond to these request. User can perform several changes on several pages, then use some method that will call the ajax method. My ashx file reads some values From the session variables and acts accordingly. This works fine in all browsers but in internet explorer. In internet explorer the session seems to hold old information (old user ids'). It's incredible, the same code works fine in firefox, chrome and safari but fails with ie. What could be causing it? I have no clue where to even start looking for a solution. btw, Sorry for the general title, couldn't figure out how to explain in just few words. Thank You!

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  • Converting array to Drupal format

    - by theo
    Hi all, This statement gives me the value I want in Drupal (namely the last user role): global $user; return (end($user->roles)); however I need to convert it to this format: return array( 0 => array('value' => value for value), // You'll usually want to stop here. Provide more values // if you want your 'default value' to be multi-valued: 1 => array('value' => value for value), 2 => ... ); and I've got no idea how to (also, is this format a multidimensional array?)... Any ideas? Thanks for any help, Theo.

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  • cakePHP paginate with post data without sessions, serialization or post to get

    - by openprojdevel
    I have created a small search and filter form method post in controller/index, which posts to it self the conditions and fields to paginate ( $this-paginate($conditions) ) However that is good for the first page, the subsequent pages the filer conditions are lost. pagination passArgs supports get variables well. Is there an un complex way to pass the post conditions to the other paginated pages? The method I have looked at is pass the $conditions in session , which isnt without complexity of assigning session and unset the session on submitting the form again (more refinements to the filter criteria by the user ) The other method is passing the $conditions as serialized string url_encode as an get parameter. Is there an good cake way to do this more like passArgs, sessions and url encode do not look like cake style. Thanks

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  • Can't get python.manage.py syncdb to work

    - by Diego
    I just created my first django app, initialized variables DATABASE_ENGINE and DATABASE_NAME in settings.py, but now when I run python manage.py syncdb, I get the following error Can somebody help? Does this have to do with having two python versions installed? I'm a django/python noob, please help. thanks!! my-computer:~/Django-1.1.1 mycomp$ python manage.py syncdb /Library/Frameworks/Python.framework/Versions/2.6/Resources/Python.app/Contents/MacOS/Python: can't open file 'manage.py': [Errno 2] No such file or directory my-computer:~/Django-1.1.1 mycomp$ export PATH=/Users/mycomp/bin:$PATH

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  • python: subclass a metaclass

    - by Michael Konietzny
    Hello, for putting methods of various classes into a global registry I'm using a decorator with a metaclass. The decorator tags, the metaclass puts the function in the registry: class ExposedMethod (object): def __init__(self, decoratedFunction): self._decoratedFunction = decoratedFunction def __call__(__self,*__args,**__kw): return __self._decoratedFunction(*__args,**__kw) class ExposedMethodDecoratorMetaclass(type): def __new__(mcs, name, bases, dct): for obj_name, obj in dct.iteritems(): if isinstance(obj, ExposedMethod): WorkerFunctionRegistry.addWorkerToWorkerFunction(obj_name, name) return type.__new__(mcs, name, bases, dct) class MyClass (object): __metaclass__ = DiscoveryExposedMethodDecoratorMetaclass @ExposeDiscoveryMethod def myCoolExposedMethod (self): pass I've now came to the point where two function registries are needed. The first thought was to subclass the metaclass and put the other registry in. For that the new method has simply to be rewritten. Since rewriting means redundant code this is not what I really want. So, it would be nice if anyone could name a way how to put an attribute inside of the metaclass which is able to be read when new is executed. With that the right registry could be put in without having to rewrite new. Thanks and Greetings, Michael

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  • What are jQuery best practices regarding Ajax convenience methods and error handling?

    - by JonathanHayward
    Let's suppose, for an example, that I want to partly clone Gmail's interface with jQuery Ajax and implement periodic auto-saving as well as sending. And in particular, let us suppose that I care about error handling, expecting network and other errors, and instead of just being optimistic I want sensible handling of different errors. If I use the "low-level" feature of $.ajax() then it's clear how to specify an error callback, but the convenience methods of $.get(), $.post(), and .load() do not allow an error callback to be specified. What are the best practices for pessimistic error handling? Is it by registering a .ajaxError() with certain wrapped sets, or an introspection-style global error handler in $.ajaxSetup()? What would the relevant portions of code look like to initiate an autosave so that a "could not autosave" type warning is displayed if an attempted autosave fails, and perhaps a message that is customized to the type of error? Thanks,

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  • Compile C# into objective-C

    - by Ali Shafai
    Now that monotouch is being banned, I was wondering if there is a way to translate C# (or some other modern language for that matter) into objective-C? I won't mind using apple's api as long as I don't have to declare my variables in 3-4 stages (ivar-property-synthesize-dealloc). All I want is a less wordy language to concentrate on my intent and not on the compiler syntax. unfortunately apple in its arrogance thinks objective-c is a "modern" language and if you are looking for an alternative (monotouch) it's because you are incapable of coding. also if you don't find programming in itunes; sorry, xcode enjoyable, it is not because there are better alternatives, it's because you are stupid. anyway back to my original question: can it be done?

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  • linux pthread_suspend

    - by johnnycrash
    Looks like linux doesnt implement pthread_suspend and continue, but I really need em. I have tried cond_wait, but it is too slow. The work being threaded mostly executes in 50us but occasionally executes upwards of 500ms. The problem with cond_wait is two-fold. The mutex locking is taking comparable times to the micro second executions and I don't need locking. Second, I have many worker threads and I don't really want to make N condition variables when they need to be woken up. I know exactly which thread is waiting for which work and could just pthread_continue that thread. A thread knows when there is no more work and can easily pthread_suspend itself. This would use no locking, avoid the stampede, and be faster. Problem is....no pthread_suspend or _continue. Any ideas?

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