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• TableView - iVar reset when returning from details view

  - by iFloh

  Hi, anyone knows what I need to do to retain my TableView iVars whilst pushing a details view onto the navigation stack? I have an array and a date defined as iVars and the array is retained, whilst the date is not. I checked whether there may be an autorelease hidden somewhere but there are no obvious ones. The properties are defined as nonatomic, retain. I use custom NSDate category methods to determine specific dates at stages. These use NSDateComponents, NSRange and NSCalendar, for example: - (NSDate *)lastDayOfMonth: { NSCalendar *tmpCal = [NSCalendar currentCalendar]; NSDateComponents *tmpDateComponents = [tmpCal components:NSYearCalendarUnit | NSMonthCalendarUnit | NSEraCalendarUnit | NSWeekCalendarUnit | NSWeekdayOrdinalCalendarUnit fromDate:self]; NSRange tmpRange = [tmpCal rangeOfUnit:NSDayCalendarUnit inUnit:NSMonthCalendarUnit forDate:[tmpCal dateFromComponents:tmpDateComponents]]; [tmpDateComponents setDay:tmpRange.length]; [tmpDateComponents setHour:23]; [tmpDateComponents setMinute:59]; [tmpDateComponents setSecond:59]; return [[NSCalendar currentCalendar] dateFromComponents:tmpDateComponents]; } could they somehow be the reason?

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• Upload and parse csv file with "universal newline" in python on Google App Engine

  - by greg

  Hi, I'm uploading a csv/tsv file from a form in GAE, and I try to parse the file with python csv module. Like describe here, uploaded files in GAE are strings. So I treat my uploaded string a file-like object : file = self.request.get('catalog') catalog = csv.reader(StringIO.StringIO(file),dialect=csv.excel_tab) But new lines in my files are not necessarily '\n' (thanks to excel..), and it generated an error : Error: new-line character seen in unquoted field - do you need to open the file in universal-newline mode? Does anyone know how to use StringIO.StringIO to treat strings like files open in universal-newline?

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• Problem with migrating a model in ruby

  - by Shreyas Satish

  I run script/generate model query edit query.rb in models.. class Query < ActiveRecord::Base #I even tried Migrations instead of Base def sef.up create table :queries do|t| t.string :name end end def self.down drop_table :queries end end ,run rake db:migrate. and what I see in db is this: mysql> desc queries; +------------+----------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +------------+----------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | created_at | datetime | YES | | NULL | | | updated_at | datetime | YES | | NULL | | +------------+----------+------+-----+---------+----------------+ Where is the "name" field? HELP ! Cheers !

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• Chipmunk warning still present with --release

  - by Kaliber64

  I'm using Python27 on Windows 7 64-bit. I downloaded the source for Chipmunk 6.2.x and compiled Pymunk with --release and -c ming32. Almost zero problems. Lots of path not found cause I'm bad. All prints seem to have disappeared but I get spammed with EPA iteration warnings. I've seen a couple discussions but no solutions. Possible chipmunk betas to fix the float errors causing the double truths causing the warning. I picked the latest stable version I think. My program is seriously bogged down with all the prints. class NullDevice(): def write(self, s): pass sys.stdout=NullDevice() Does not disable the C prints .< Any help?

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• How to load object after saving with encodeWithCoder?

  - by fuzzygoat

  EDIT_002: Further rewrite: if I save using the method below how would the method to load it back in look? (moons is an NSMutableArray of NSNumbers) // ------------------------------------------------------------------- ** // METHOD_002 // ------------------------------------------------------------------- ** -(void)saveMoons:(NSString *)savePath { NSMutableData *data = [[NSMutableData alloc] init]; NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data]; [moons encodeWithCoder:archiver]; [archiver finishEncoding]; [data writeToFile:savePath atomically:YES]; [archiver release]; [data release]; } EDIT_003: Found it, my problem was that I was using ... [moons encodeWithCoder:archiver]; where I should have been using ... [archiver encodeObject:moons]; Hence the loader would look like: -(void)loadMoons_V3:(NSString *)loadPath { NSData *data = [[NSData alloc] initWithContentsOfFile:loadPath]; NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:data]; [self setMoons:[unarchiver decodeObject]]; [unarchiver finishDecoding]; [unarchiver release]; [data release]; } gary

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• DeprecationWarning when pushing to Mercurial repo

  - by Josh Nankin

  I'm trying to serve a merurial repository with apache, and when I try to push to the repo I see this in the apache error.log. On the client side I get a 500 error. How do I get this to go away???? [Sun Jun 06 14:43:25 2010] [error] [client 192.168.1.8] /var/lib/python-support/python2.6/mercurial/hgweb/common.py:24: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6 [Sun Jun 06 14:43:25 2010] [error] [client 192.168.1.8] self.message = message [Sun Jun 06 14:43:25 2010] [error] [client 192.168.1.8] /var/lib/python-support/python2.6/mercurial/hgweb/hgweb_mod.py:104: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6 [Sun Jun 06 14:43:25 2010] [error] [client 192.168.1.8] if not inst.message: [Sun Jun 06 14:43:25 2010] [error] [client 192.168.1.8] /var/lib/python-support/python2.6/mercurial/hgweb/hgweb_mod.py:106: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6 [Sun Jun 06 14:43:25 2010] [error] [client 192.168.1.8] return '0\\n%s\\n' % inst.message,

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• Methods in super that will be subclassed anyway (Cocoa)

  - by Michael Matheus

  Sorry if this is a repost but I couldn't quite search for it because I can't explain it in a few words. I have a super class with lots of methods but they will always (not all of them) be subclassed. From the super I need to access (read only) those methods. I could either leave the methods in super empty or I could just not type them in super but call them anyway like so [self myMethod] and it will call my subclassed method even if it doesn't exist in super. This works but Xcode gives me an error though. 'superclass' may not respond to '-subclassmethod' What should I do?

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• Modifying records in my migration throws an authlogic error

  - by nfm

  I'm adding some columns to one of my database tables, and then populating those columns: def self.up add_column :contacts, :business_id, :integer add_column :contacts, :business_type, :string Contact.reset_column_information Contact.all.each do |contact| contact.update_attributes(:business_id => contact.client_id, :business_type => 'Client') end remove_column :contacts, :client_id end The line contact.update_attributes is causing the following Authlogic error: You must activate the Authlogic::Session::Base.controller with a controller object before creating objects I have no idea what is going on here - I'm not using a controller method to modify each row in the table. Nor am I creating new objects. The error doesn't occur if the contacts table is empty. I've had a google and it seems like this error can occur when you run your controller tests, and is fixed by adding before_filter :activate_authlogic to them, but this doesn't seem relevant in my case. Any ideas? I'm stumped.

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• Creating a context in custom shoulda macro does not work.

  - by Honza

  I have a custom should macro in my test_helper.rb which looks like this. def self.should_require_login(actions = [:index]) if (actions.is_a? Symbol) actions = [actions] end context "without user" do actions.each do |action| should "redirect #{action.to_s} away" do get action assert_redirected_to login_path end end end if block_given? context "active user logged in" do setup do @user = Factory.create(:user) @user.register! @user.activate! login_as(@user) end yield end end end I would like to use it like this: should_require_login(:protected_action) do should "do something" do ... end end And I am expecting the "do something" test to run in the "active user logged in" context, but the test executes in the top context, like the "active user logged in" context never existed and I fail to see the reason why.

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• Set bold rows in a QTreeView

  - by taynaron

  I have a custom subclass of a QTreeView in a pyqt application. I'm trying to give the user the ability to highlight and "lowlight" (for lack of a better term) rows. Highlighted rows should have bold text and (optionally) a different background color. Any ideas? I'm considering StyleSheets as an option, but have so far been unable to get that to work. If I set the QTreeView's stylesheet: self.setStyleSheet("QTreeView::item:selected {border: 1px solid #567dbc;}") I can't figure out how to manually enable 'states' that would keep only the desired rows at a particular state. If I try setting an individual item's stylesheet: #modelIndex is a valid QModelIndex modelIndex.internalPointer().setStyleSheet() I get a segfault. I'm not convinced stylesheets are the way to go, I'm open to all ideas. Thanks!

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• Beginning GWT and Java - wich is the best route when coming from LAMP background?

  - by Cambiata

  Hi! I've worked a lot with php/mysql on linux servers, including frameworks, orm etc. Now I want to give GWT and Java a try! Installing GWT SDK, Eclipse plugin etc and running a "Hello world" is no problem... The server is running automagically in the background... But when it comes to setting it up my self, there seems to be confusingly many options. Jetty? Tomcat? Glassfish? How are those related/combinable to/with Apache? Are there any good resources or tutorials for setting up java development and server environments suited for one like me with PHP background? Maybe pointing out the possiblities of running PHP and Java on the same server? Regards / Jonas

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• iOS - how to read and write a plist of this format

  - by Suchi

  I have an xml of the following format - <plist version="1.0"> <array> <dict>...</dict> <dict>...</dict> </array> </plist> I am trying to write it into a plist using - NSDictionary *temp = [NSPropertyListSerialization propertyListWithData:returnData options:NSPropertyListImmutable format:&format error:&errorDesc]; [self writeToPlistFile:@"myList.plist" : temp]; where the method is -(BOOL)writeToPlistFile:(NSString*)filename:(NSDictionary*)data{ NSArray * paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString * documentsDirectory = [paths objectAtIndex:0]; NSString * path = [documentsDirectory stringByAppendingPathComponent:filename]; BOOL didWriteSuccessfull = [data writeToFile:path atomically:YES]; return didWriteSuccessfull; } I then want to read it and place it into a dictionary. How would I do that?

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• UIView animation doesn't work first time

  - by BobC

  Hello everybody, I have a seachButton in the navigation bar which upon hitting calls following method: - (IBAction)search:(id)sender { if (nil == searchViewController) searchViewController = [[SearchViewController alloc] initWithNibName:@"SearchViewController" bundle:nil]; searchViewController.view.backgroundColor = [UIColor clearColor]; [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:1.0]; [UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:searchViewController.view cache:NO]; [self.view addSubview:searchViewController.view]; [UIView commitAnimations]; } It should load SearchViewController.xib which contains a view with UISearchBar and two buttons. When I call the search method for the first time, the view appears very quickly with some weird animation, when I call it again, the animation is alright. Does anyone have a clue what could be wrong?

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• Redirect PHP-Shell-Script output

  - by Corelgott

  Hi Folks, i have got a php-script foo.php #!/usr/bin/php -c /etc/php5/cli/php.ini -q <?php echo 'hello'; // & do some stuff ?> I call this script not wrapped by a sh-script but using it directly in a cron job. To get rid of it's output i normally would just create a sh-file which calls /usr/bin/php -c /etc/php5/cli/php.ini -q foo.php > /dev/null 2 > /dev/null now i'd like to do this in the interpreter-declaration of the php file it self... so i am looking for the syntax for: #!/usr/bin/php -args [file's content] > /redirect 2 > /redirect i have kind of a hard time googleing for it... so if anybody could point me into the right direction i would really appreciate it! Thx in advance Corelgott

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• Lightweight web browser for testing

  - by Ghostrider

  I have e very specific test setup in mind. I would like to start a web-browser that understands Javascript and can use HTTP proxy, point it to a URL (ideally by specifying it in the command line along with the proxy config), wait for the page to load while listening (in the proxy) requests are generated as web-page is rendered and Javascript is executed, then kill the whole thing and restart. I don't care about how the page renders graphically at all. Which browser or tool should I use for this? Ideally it should be something self-contained that doesn't require installation (just an EXE file that runs from command line). Lynx would have been ideal but for the fact that it doesn't support JS. It should have as small memory footprint as possible.

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• code optimization; switch versus if's

  - by KaiserJohaan

  Hello, I have a question about whether to use 'case' or 'ifs' in a function that gets called quite alot. Here's the following as it is now, in 'ifs'; the code is self-explanatory: int identifyMsg(char* textbuff) { if (!strcmp(textbuff,"text")) { return 1; } if (!strcmp(textbuff,"name")) { return 2; } if (!strcmp(textbuff,"list")) { return 3; } if (!strcmp(textbuff,"remv")) { return 4; } if (!strcmp(textbuff,"ipad")) { return 5; } if (!strcmp(textbuff,"iprm")) { return 6; } return 0; } My question is: Would a switch perform better? I know if using ifs, I can place the most likely options at the top.

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• ImageMagick: Tiff to PDF from PHP

  - by Sheldon

  How can I convert 2 tiff images to PDF, I already knows how to get the image out of the DB, and I print it using echo and setting up the MIME type. But, right know I need to use a duplex printer option, so I need a way to generate a PDF from inside my PHP page, that PDF must containt both TIFF images (one per page) How can I do that? What do I need for php to work with that library. Thank you very much. EDIT: Is a self hosted app, I own the server (actually I'm using WAMP 2). I extract the images from the MySQL DB (stored using LONGBLOBS).

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• Python: override __init__ args in __new__

  - by EoghanM

  I have a __new__ method as follows: class MyClass(object): def __new__(cls, *args): new_args = [] args.sort() prev = args.pop(0) while args: next = args.pop(0) if prev.compare(next): prev = prev.combine(next) else: new_args.append(prev) prev = next if some_check(prev): return SomeOtherClass() new_args.append(prev) return super(MyClass, cls).__new__(cls, new_args) def __init__(self, *args): ... However, this fails with a deprecation warning: DeprecationWarning: object.__new__() takes no parameters SomeOtherClass can optionally get created as the args are processed, that's why they are being processed in __new__ and not in __init__ What is the best way to pass new_args to __init__? Otherwise, I'll have to duplicate the processing of args in __init__ (without some_check)

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• POSTDATA, ASIHTTPrequest + instapaper

  - by Andrew

  Hi guys, I'm trying to use ASIHTTPRequest to submit links to instapaper (http://www.instapaper.com/api). I'm able to authenticate but I get a 400 response when trying to submit a link, so I'm clearly in need of figuring how to use postdata. Any help appreciated. Sample code attached. Thanks NSURL *url = [NSURL URLWithString:urlInstapaperAddUrl]; ASIHTTPRequest instapaperAuthRequest = [ASIHTTPRequest requestWithURL:url]; [instapaperAuthRequest setDelegate:self]; [instapaperAuthRequest setRequestMethod:@"PUT"]; NSData temp = [[NSData alloc] initWithData:[@"url=http://www.redhat.com" dataUsingEncoding:NSASCIIStringEncoding]]; [instapaperAuthRequest appendPostData:temp]; [instapaperAuthRequest addBasicAuthenticationHeaderWithUsername:@"myusername" andPassword:@"mypassword"]; [instapaperAuthRequest startAsynchronous];

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• Python overriding class (not instance) special methods

  - by André

  How do I override a class special method? I want to be able to call the __str__() method of the class without creating an instance. Example: class Foo: def __str__(self): return 'Bar' class StaticFoo: @staticmethod def __str__(): return 'StaticBar' class ClassFoo: @classmethod def __str__(cls): return 'ClassBar' if __name__ == '__main__': print(Foo) print(Foo()) print(StaticFoo) print(StaticFoo()) print(ClassFoo) print(ClassFoo()) produces: <class '__main__.Foo'> Bar <class '__main__.StaticFoo'> StaticBar <class '__main__.ClassFoo'> ClassBar should be: Bar Bar StaticBar StaticBar ClassBar ClassBar Even if I use the @staticmethod or @classmethod the __str__ is still using the built in python definition for __str__. It's only working when it's Foo().__str__() instead of Foo.__str__().

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• Invoking play on a QTMovie causes screensaver to deactivate on Snow Leopard

  - by ressaw

  I'm trying to port a working Leopard screensaver to Snow Leopard but it's deactivating after about half a second. The screensaver seems to deactivate upon invoking play on a QTMovie. And it deactivates both upon -play on the QTMovie object itself, and -play:self on the QTMovieView. If I don't actually call -play on the object, the screensaver does not deactivate and sits still on the first frame of the movie. Setting up the same code in a regular Cocoa Application works fine, and the screensaver also works fine in preview mode in the System Preferences. Any help is greatly appreciated.

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• Php what does <<< mean ?

  - by Doodle

  In the following code from http://us2.php.net/manual/en/language.oop5.properties.php what does the <<< symbol mean? <?php class SimpleClass { // invalid property declarations: public $var1 = 'hello ' . 'world'; public $var2 = <<<EOD hello world EOD; public $var3 = 1+2; public $var4 = self::myStaticMethod(); public $var5 = $myVar; // valid property declarations: public $var6 = myConstant; public $var7 = array(true, false); // This is allowed only in PHP 5.3.0 and later. public $var8 = <<<'EOD' hello world EOD; } ?>

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• cant use Activerecord find method with associations.

  - by fenec

  here are my models: #game class Game < ActiveRecord::Base #relationships with the teams for a given game belongs_to :team_1,:class_name=>"Team",:foreign_key=>"team_1_id" belongs_to :team_2,:class_name=>"Team",:foreign_key=>"team_2_id" def self.find_games(name) items = Game.find(:all,:include=>[:team_1,:team_2] , :conditions => ["team_1.name = ?", name] ) end end #teams class Team < ActiveRecord::Base #relationships with games has_many :games, :foreign_key =>'team_1' has_many :games, :foreign_key =>'team_2' end When i execute Game.find_games("real") i get : ActiveRecord::StatementInvalid: SQLite3::SQLException: no such column: team_1.name How can i fix the problem i thought that using :include would fix the problem.

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• How to access the parent view controller?

  - by tarnfeld

  I am using this code to push a view controller in ViewControllerA: DatePickerViewController *viewController = [[DatePickerViewController alloc] initWithNibName:@"DatePickerViewController" bundle:nil]; NSMutableArray *info = [[NSMutableArray alloc] initWithObjects:@"Exam Duration",nil]; [viewController setInfo:info]; [info release]; [self.navigationController pushViewController:viewController animated:YES]; [viewController release]; In the DatePickerViewController that is slid in, it has a text field. In ViewControllerA how can I get the value of this text field once the viewWillDisappear method is fired, it's to save data.

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• Serving files over HTTPS dynamically based on request.ssl? with Attachment_fu

  - by Marston A.

  I see there is a :user_ssl option in attachment_fu which checks the amazon_s3.yml file in order to serve files via https:// In the s3_backend.rb you have this method: def self.protocol @protocol ||= s3_config[:use_ssl] ? 'https://' : 'http://' end But this then makes it serve ALL s3 attachments with SSL. I'd like to make it dynamic depending if the current request was made with https:// i.e: if request.ssl? @protocol = "https://" else @protocol = "http://" end How can I make it work in this way? I've tried modifying the method and then get the NameError: undefined local variable or method `request' for Technoweenie::AttachmentFu::Backends::S3Backend:Module error

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