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  • Clean Method for a ModelForm in a ModelFormSet made by modelformset_factory

    - by Salyangoz
    I was wondering if my approach is right or not. Assuming the Restaurant model has only a name. forms.py class BaseRestaurantOpinionForm(forms.ModelForm): opinion = forms.ChoiceField(choices=(('yes', 'yes'), ('no', 'no'), ('meh', 'meh')), required=False, )) class Meta: model = Restaurant fields = ['opinion'] views.py class RestaurantVoteListView(ListView): queryset = Restaurant.objects.all() template_name = "restaurants/list.html" def dispatch(self, request, *args, **kwargs): if request.POST: queryset = self.request.POST.dict() #clean here return HttpResponse(json.dumps(queryset), content_type="application/json") def get_context_data(self, **kwargs): context = super(EligibleRestaurantsListView, self).get_context_data(**kwargs) RestaurantFormSet = modelformset_factory( Restaurant,form=BaseRestaurantOpinionForm ) extra_context = { 'eligible_restaurants' : self.get_eligible_restaurants(), 'forms' : RestaurantFormSet(), } context.update(extra_context) return context Basically I'll be getting 3 voting buttons for each restaurant and then I want to read the votes. I was wondering from where/which clean function do I need to call to get something like: { ('3' : 'yes'), ('2' : 'no') } #{ 'restaurant_id' : 'vote' } This is my second/third question so tell me if I'm being unclear. Thanks.

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  • why does .replace method use forward slash characters to enclose the first argument?

    - by Phillip Dodd
    I am working through a book about Javascript and have encountered the following example of code designed to replace the value of the class attribute of a table header HTML element: th.className = th.className.replace(/asc/,"dsc"); th.className = th.className.replace(/dsc/,"asc"); Why is the first parameter of .replace, the current value of th.className, enclosed in forward slashes instead of quotation marks? Why not use quotation marks to enclose both parameters, not just the second one? Thank you in advance for any help given. First time posting, apologies if I duplicated a question despite searching the site before posting.

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  • Reducing time in C# Forms Control.set_Text(string) function

    - by awshepard
    Hoping for a quick answer (which SO seems to be pretty good for)... I just ran a performance analysis with VS2010 on my app, and it turns out that I'm spending about 20% of my time in the Control.set_Text(string) function, as I'm updating labels in quite a few places in my app. The window has a timer object (Forms timer, not Threading timer) that has a timer1_Tick callback, which updates one label every tick (to give a stop-watch sort of effect), and updates about 15 labels once each second. Does anyone have quick suggestions for how to reduce the amount of time spent updating text on a form, other than increasing the update interval? Are there other structures or functions I should be using?

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  • overwrite a file which is already used by another process

    - by Ahmy
    I have a web site and i am showing videos to visitors, at the admin side i am filling the form of video and upload video file and sometimes i need to change(update) the video so i update the video by uploading another one, when i create the video in the first time i concatenate a datetime variable with the video name to avoid repeatition(file already exist) and when updatting the video the problem appears.... as if i upload the new video with the previous name so it will replace the previous one and in this case if the video is used by another process it will fail and the second option(which i am already using) is to upload a new video and concatenating new datetime variable with video title, so the previous and the new video will exist in the same directory and in this case i will lose too much space in my server directory as i have unused videos which takes space which in future will cause problem to me in the disk space so how can i solve this problem ? Hope that my question is clear....thanks in advance for any try

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  • C Check Substring of a String C

    - by user69514
    I'm trying to check whether or not the second argument in my program is a substring of the first argument. The problem is that it only work if the substring starts with the same letter of the string. EDIT: It must be done in C, not C++. Sorry #include <stdio.h> #include <string.h> int my_strstr( char const *s, char const *sub ) { char const *ret = sub; while ( ret = strchr( ret, *sub ) ) { if ( strcmp( ++ret, sub+1 ) == 0 ) return 1; } return 0; } int main(int argc, char **argv){ if (argc != 3) { printf ("Usage: check <string one> <string two>\n"); } int result = my_strstr(argv[1], argv[2]); if(result == 1){ printf("%s is a substring of %s\n", argv[2], argv[1]); } else{ printf("%s is not a substring of %s\n", argv[2], argv[1]); } return 0; }

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  • SSIS process files from folder

    - by RT
    Background: I've a folder that gets pumped with files continuously. My SSIS package needs to process the files and delete them. The SSIS package is scheduled to run once every minute. I'm picking up the files in ascending order of file creation time. I'm building an array of files and then processing-deleting them one at a time. Problem: If an instance of my package takes longer than one minute to run, the next instance of the SSIS package will pick up some of the files the previous instance has in its buffer. By the time the second instance of teh package gets around to processing a file, it may already have been deleted by the first instance, creating an exception condition. I was wondering whether there was a way to avoid the exception condition. Thanks.

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  • How to match multiple lines with Regex in C#?

    - by Emanuel
    I have the following text: --------------030805090908050805080502 Content-Type: image/jpeg Content-Transfer-Encoding: base64 Content-ID: <[email protected]> /9j/4AAQSkZJRgABAgAAZABkAAD/7AARRHVja3kAAQAEAAAARgAA/+4ADkFkb2JlAGTAAAAA /9j/4AAQSkZJRgABAgAAZABkAAD/7AARRHVja3kAAQAEAAAARgAA/+4ADkFkb2JlAGTAAAAA QBQH/9k= --------------030805090908050805080502 Content-Type: image/jpeg Content-Transfer-Encoding: base64 Content-ID: <[email protected]> /9j/4AAQSkZJRgABAgAAZABkAAD/7AARRHVja3kAAQAEAAAARgAA/+4ADkFkb2JlAGTAAAAA /9j/4AAQSkZJRgABAgAAZABkAAD/7AARRHVja3kAAQAEAAAARgAA/+4ADkFkb2JlAGTAAAAA juu41lRHFLufPCAID//Z --------------030805090908050805080502-- And I need to get with Regex in C# 2 parts: between the first and the second occurence of the string "--------------030805090908050805080502" between the strings "--------------030805090908050805080502" and "--------------030805090908050805080502--" I tried this regex: --------------030805090908050805080502(\r.*)*--------------030805090908050805080502 but in C# regex.Matches(...) return only "--------------030805090908050805080502". Any idee? Thanks.

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  • Watir question regarding exist on a class for testing purposes.

    - by AJ
    I have a button on my page that changes depending on what radio button is clicked. The button has the same text on it with the same id, but different classes. How do I test if the two different buttons exist depending on the radio. <a id="submit" class="on" href="javascript:submit();">Submit</a> <a id="submit" class="off" href="javascript:submit();">Submit</a> How do i test if the second button appears instead of the first one. I used something like, browser.link(:text, 'Submit').exist? but this doesn't work cause it will return true no matter what. thanks

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  • [Android SDK] Text-To-Speech addSpeech not working properly

    - by arcoraven
    Hi, I'm trying to get my Android app to play a .wav file recording of the word "Spinach Salad" whenever it sees that phrase being spoken by TTS. Here's the relevant code: spinach_salad.wav is located in /res/raw prodName = "Spinach Salad" mTts.addSpeech(prodName, "com.example.textextractor", R.raw.spinach_salad); ...and later in the code: mTts.speak("blah blah blah " + prodName, TextToSpeech.QUEUE_ADD, null); I've also tried: mTts.speak("blah blah blah Spinach Salad", TextToSpeech.QUEUE_ADD, null); and mTts.speak("blah blah blah", TextToSpeech.QUEUE_ADD, null); mTts.speak(productName_str, TextToSpeech.QUEUE_ADD, null); In both cases, I'm just hearing the TTS synthesized audio, rather than my custom .wav file. (On a related note, the last chunk of code sometimes speaks out of order, saying the second line before the first).

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  • Recognition source of event in PyQT

    - by xTrol
    Hi, I`m starting with PyQt4 and right now I have a problem with events. I have one main class let say MainWindow. MainWindow has a list of buttons of type ButtonX (inherence form QPushButton). I would like to achieve one of 2 solutions (depends which is easier). 1) After click one of the button from the list I would like to run a one method of MainWindow. I would like to be able to read a source of event there (recognize clicked button) 2) Second solution is to run a method defined in ButtonX class. What I tried is: QtCore.QObject.connect(self.getButton(0, 0), QtCore.SIGNAL("clicked()"), self.getButton(0, 0).buttonMethod()) QtCore.QObject.connect(self.getButton(0, 0), QtCore.SIGNAL("clicked()"), self.getButton(0, 0), QtCore.SLOT("incrementValue()")) and even this line occure suspend Python interpreter QtCore.QObject.connect(self.getButton(0, 0), QtCore.SIGNAL("clicked()"), self.getButton(0, 0), QtCore.SLOT("incrementValue"))

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  • Conceptual question about NSAutoreleasePools

    - by ryyst
    In my Cocoa program, wouldn't a really simple way of dealing with autoreleased objects be to just create a timer object inside the app delegate that calls the following method e.g. every 10 seconds: if (pool) { // Release & drain the current pool to free the memory. [pool release]; } // Create a new pool. pool = [[NSAutoreleasePool alloc] init]; The only problems I can imagine are: 1) If the above code runs in a separate thread, an object might get autoreleased between the release call to the old pool and the creation of the new pool - that seems highly unlikely though. 2) It's obviously not that efficient, because the pool might get released if there's nothing in it. Likewise, in the 10 second gap, many many objects might be autoreleased, causing the pool to grow a lot. Still, the above solution seems pretty suitable to small and simple projects. Why doesn't anybody use it? What's the best practice of using NSAutoreleasePools?

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  • slowly rotate an object towards another object

    - by numerical25
    I have an object that points in the direction of another object (i.e. it rotates to the direction that the second objects x and y coordinates are at) below is the code I use. var distx = target.x - x; var disty = target.y - y; var angle:Number = Math.atan2(disty, distx); var vx:Number = Math.cos(angle) * cspeed; var vy:Number = Math.sin(angle) * cspeed; rotation = angle * 180/Math.PI; x += vx; y += vy; as you can see. Not only does it rotate towards the target object, but it also moves towards it too. When I play the movie, the object instantly points to the targeted object and moves towards it. I would like for it to slowly turn towards the object instead of instantly turning towards it. anyone know how to do this.

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  • Can I have two different Styles in a CustomControl

    - by Subhen
    Hi, Can we have two different styles in generic.xaml setter template Property Something like: <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="local:customLocalFolderButton"> **<----Style 1---->** </ControlTemplate TargetType="local:customLocalFolderButton"> </Setter.Value> <Setter.Value> <ControlTemplate TargetType="local:customLocalFolderButton"> **<----Style 2---->** </ControlTemplate TargetType="local:customLocalFolderButton"> </Setter.Value> </Setter> Now I want to load the styles , as per the requirement. The 1st Style Can have a Red Folder and the Second Style Can have Blue Folder . The user can choose any of the theme and the choosen style(Either RedFolder or Blue) should be applied in the customControl it self. Thanks, Subhen

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  • Need better Java application deployment strategy

    - by Jeff Post
    I have various Java Swing applications that are used by multiple users. My deployment strategy is to locate the .jar file on a network share, and users create shortcuts to that file. When the user launches an application, the file is copied to their machine and executed locally. This method allows for a single copy of the code and easy updating. The problem is that I can't update the file on the network share if any user is using the application at that time. I can't use Web Start because I don't have access to a cert for signing the jar. My current workaround is a separate application that copies the desired app to the user's local machine, launches the application, and then the launcher exits. There is a several second delay from when the launcher app exits and the user's app becomes visible. Can anyone suggest a better deployment method where I can easily update a central copy of the application, one where Windows XP won't maintain a lock on the file?

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  • PHP Launch Execute Files Concurrently

    - by Ozzy
    Hi all. Basically, I was doing some testing using apache bench. The file i was testing takes 2 seconds to execute (its optimised, it connects to an external server hence the slowdown) Basically I found that the more concurrent useres i emulated, the more executions of the file i could do per second. Is there anyway that i can do something like this in php? : <?php execute_file('file.php'); execute_file('file.php'); execute_file('file.php'); execute_file('file.php'); execute_file('file.php'); ?> That would execute the file 5 times but would NOT wait for the files to finish downloading so the above example would quickly call the 5 functions then exit. Im assuming somesort of timeout would be used?

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  • Rank Source Control Options-VSS vs CVS vs none vs your own hell

    - by Roman A. Taycher
    It seems like a lot of people here and on many programmer wikis/blogs/ect. elsewhere really dislike VSS. A lot of people also have a serious dislike for cvs. In many places I have heard a lot of differing opinions on whether or not using VSS or cvs is better or worse then using no source control, please rate the worst and explain why!!!!! you rated them this way. Feel free to throw in your own horrible system in the rankings. If you feel it depends on the circumstances try to explain the some of the different scenarios which lead to different rankings. (note:I see a lot of discussion of what is better but little of what is worse.) second note: while both answers are nice I'm looking less for good replacements and more for a comparison of which is worse and more importantly why!

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  • Read the audio input level peak in Cocoa

    - by Kenneth Ballenegger
    I'm trying to make an audio-sensitive animation, and for that purpose, I'm looking for a way to look up the current audio level. I'm looking for the peak within a set amount of time. (Think the red bar that stays on for a second or so, on an audio meter.) I've searched around for for something like this, and the only thing I could find was how to read a movie's audio levels, and how Quartz Compositions have access to this thru their iTunes Visualizer protocol. I'm looking for a way to read this from the microphone, although I'm also interested if you know how to read this from an audio file. Thanks!

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  • iphone simulator crashes when it tries to access user location

    - by kevin Mendoza
    for some reason my code causes my program to crash. does anyone know why or how to fix it? NSLog(@"here"); CLLocation *location = [locationManager location]; [mapView removeAnnotations:mapView.annotations]; NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; CLLocationCoordinate2D workingCoordinate = [location coordinate]; NSLog(@" this is %@", workingCoordinate.latitude); it makes it to the first NSLog, but somewhere between the first and second it crashes. My guess is that it has to do with the CLLocation *location line.

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  • producing a typewriter-like effect

    - by Tony Ennis
    Android newb here. Please use small words :-) I'd like to simulate typewriter output on my Android. The output being displayed is generated by a game and is somewhat freeform. The effect I want to see individual characters appear at a rate of about 6 characters a second. When a 'carriage return' is seen, I'd like to insert a delay then resume typing on the left. What are some suggestions on views? Would the view of choice for this be a TextView? Even that seems like overkill for this read-only coarsely scrolling output. I saw something on this thread about an AsyncTask. That looks useful. Perhaps my game will write to some manner of buffer, and a subclass of AsyncTask will pull characters out every .15 seconds or so, add them to the TextView, then invalidate() the TextView? Sound like a plan?

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  • Class variable defined at @implementation rather than @interface?

    - by bitcruncher
    Hello. I'm new to Objective-C, but I am curious about something that I haven't really seen addressed anywhere else. Could anyone tell me what is the difference between a private variable that is declared at the @interface block versus a variable that is declared within the @implementation block outside of the class methods, i.e: @interface Someclass : NSObject { NSString *forExample; } @end vs. @implementation Someclass NSString *anotherExample; -(void)methodsAndSuch {} @end It seems both variables ( forExample, anotherExample ) are equally accessible throughout the class and I can't really find a difference in their behaviour. Is the second form also called an instance variable?

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  • ruby block and returning something from block

    - by dorelal
    I am using ruby 1.8.7. p = lambda { return 10;} def lab(block) puts 'before' puts block.call puts 'after' end lab p Above code output is before 10 after I refactored same code into this def lab(&block) puts 'before' puts block.call puts 'after' end lab { return 10; } Now I am getting LocalJumpError: unexpected return. To me both the code are doing same thing. Yes in the first case I am passing a proc and in the second case I am passing a block. But &block converts that block into proc. So proc.call should behave same. And yes I have seen this post http://stackoverflow.com/questions/2325471/using-return-in-a-ruby-block

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  • How do you limit a page with multiple flash mp3 players to play one at a time?

    - by Andrew.S
    I am working with the open source flash player at http://flash-mp3-player.net/ and I am trying to figure out how to limit one sound file at a time. I know this has been done on a number of sites but I am unsure how to approach it. Scenario: A page has five different instances of the flash player. The user is litening to one song but clicks on another to listen to it. Goal: The first audio file automatically stops while the second starts playing instead of both playing at the same time. Do I need to have some sort of javascript handler than interacts with the swf or something?

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  • How combine 2 functions on submit?

    - by Mahmoud
    hey there, as you can see, i have to functions first to check if all forms are not empty and the second function is to verify the captcher, when i combine them together both work at the same time, i want to first to verify the first function, when that function returns true then the other function starts, here is the code that i used on form <form action="reg.php" method="post" enctype="application/x-www-form-urlencoded" onsubmit=" Checking(this); return jcap();" > As you can see both function execute at the same time so i tried this <form action="reg.php" method="post" enctype="application/x-www-form-urlencoded" onsubmit=" if(Checking(this) == true ){ return jcap();}" > is bypass both i also tried this <form action="reg.php" method="post" enctype="application/x-www-form-urlencoded" onsubmit=" return(Checking(this) && jcap(this));" > and it bypassed jcap function

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  • ASP.NET MVC Session across subdomains

    - by nccsbim071
    Hi, In my website i have implemented custom session values. In which, on log on i set the session value to some object. This object is used to extract user specific data from db. now the problem is If user logs in with : test1.somesite.com and logs off and again logs in with: test2.somesite.com that user is still receiving the data from object specific to test1.somesite.com. the point is whichever site user frist logs in with the second time if he logs in with anathor subdomain he is always getting the data from previous sub domain login. on log out from specific domain i cleared all the sessions(tried everything): by putting HttpContext.session["UserDetail"] = null;, HttpContext.Session.Abandon() and also HttpContext.Session.Clear(); but nothing seems to work any help please

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  • Sending SMTP e-mail at a high rate in .NET

    - by Martin Liversage
    I have a .NET service that processes a queue on a background thread and from the items in the queue sends out a large number of small e-mail messages at a very high rate (say 100 messages per second if that is even possible). Currently, I use SmtpClient.Send() but I'm afraid that it may hamper performance. Each call to Send() goes through a full cycle of opening the socket, performing the SMTP conversation (HELO, MAIL FROM, RCPT TO, DATA) and closing the socket. In pseudo code: for each message { open socket send HELO send MAIL FROM send RCPT TO send DATA close socket } I would think that the following pseudo code would be more optimal: open socket send HELO for each message { send MAIL FROM send RCPT TO send DATA } send QUIT close socket Should I be concerned about the performance of SmtpClient.Send() when sending e-mail at a high rate? What are my options for optimizing the performance?

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