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  • add methods in subclasses within the super class constructor

    - by deamon
    I want to add methods (more specifically: method aliases) automatically to Python subclasses. If the subclass defines a method named 'get' I want to add a method alias 'GET' to the dictionary of the subclass. To not repeat myself I'd like to define this modifation routine in the base class. But if I check in the base class init method, there is no such method, since it is defined in the subclass. It will become more clear with some source code: class Base: def __init__(self): if hasattr(self, "get"): setattr(self, "GET", self.get) class Sub(Base): def get(): pass print(dir(Sub)) Output: ['__doc__', '__init__', '__module__', 'get'] It should also contain 'GET'. Is there a way to do it within the base class?

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  • Using an array as parameter to a class.

    - by Gabriel A. Zorrilla
    I have created an array Man: public main blah blah{ man = man[10]; } Man has fields such as Man.name; Man.age; ... In Man class, there is a OnClick method that opens a new window showing its name and age. public Man(){ Onclick(){ InfoWindow showinfo = new InfoWindow(this.getid()) // If this is Man[2] the id would be 2. } And in InfoWindow class: public class InfoWindow extends JFrame{ public InfoWindow(Man selectedMan){ setSize(300, 200); JLabel info = new JLabel(selectedMan.getname()); add(info); info.setVisible(true); } } Basically, that's wanna acomplish (show in pseudocode), pass a Man[i] into a class that when a window is created, shows the info related to that man. This is how i'm actualy trying to implement it but it's not working, i'm pretty sure there is a misconception from me in some part. Any help?

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  • Memory management, and async operations: when does an object become nil?

    - by Kenny Winker
    I have a view that will be displaying downloaded images and text. I'd like to handle all the downloading asynchronously using ASIHTTPRequest, but I'm not sure how to go about notifying the view when downloads are finished... If I pass my view controller as the delegate of the ASIHTTPRequest, and then my view is destroyed (user navigates away) will it fail gracefully when it tries to message my view controller because the delegate is now nil? i.e. if i do this: UIViewController *myvc = [[UIViewController alloc] init]; request.delegate = myvc; [myvc release]; Do myvc, and request.delegate now == a pointer to nil? This is the problem with being self-taught... I'm kinda fuzzy on some basic concepts. Other ideas of how to handle this are welcome.

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  • What can i do about an ObjectDisposedException in a dll i cannot access?

    - by djerry
    Hey guys, I'm using a dll to monitor calls (Atapi.dll). Sometimes when events occur, there's an ObjectDisposedException. This seems to be random, i don't know what causes it. I can't debug it and i don't have the source code to it. The events that cause the exception are call events (conencting calls) through Tapi 2.0. It does not causes my app to crash. If i press on the continue button of the window visual studio is generating, the app continues ignoring the exception, but i'd rather not see it happening. I tried catching all code (not much) i have writting, but nothing catches it, and it also says i cannot debug it, because it is thrown in the dll. Does anyone have any idea how to solve or get pass this obstacle? Thanks in advance.

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  • ASP.NET MVC - Custom validation message for value types

    - by Giovanni Galbo
    When I use UpdateModel or TryUpdateModel, the MVC framework is smart enough to know if you are trying to pass in a null into a value type (e.g. the user forgets to fill out the required Birth Day field) . Unfortunately, I don't know how to override the default message, "A value is required." in the summary into something more meaningful ("Please enter in your Birth Day"). There has to be a way of doing this (without writing too much work-around code), but I can't find it. Any help? EDIT Also, I guess this would also be an issue for invalid conversions, e.g. BirthDay = "Hello".

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  • JSP tag lifecycle

    - by mkoryak
    i just introduced a bug into my code because i seem to have misunderstood the jsp tag lifecycle. The tag worked like this before the bug: i pass the tag some collection as an attribute, and it displays it as a table. The collection was passed into the JSP from the controller. after the bug: a removed the attribute which set the collection. instead, in the tag i check if the collection is null, and then grab it by name from the request (using a naming convention). the thing that i didnt expect: after the collection was initially set in the tag, it would never become null on subsequent executions! it was still defined as an non-requred attribute in the TLD. I expected the tag to not hold on to previous values between executions.

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  • unittest tests reuse for family of classes

    - by zaharpopov
    I have problem organizing my unittest based class test for family of tests. For example assume I implement a "dictionary" interface, and have 5 different implementations want to testing. I do write one test class that tests a dictionary interface. But how can I nicely reuse it to test my all classes? So far I do ugly: DictType = hashtable.HashDict In top of file and then use DictType in test class. To test another class I manually change the DictType to something else. How can do this otherwise? Can't pass arguments to unittest classes so is there a nicer way?

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  • How to create a web framework in C# without ASPX?

    - by Mark
    I've managed to get a C# asp page running under ubuntu/apache/mono, but I don't want to write my framework in these ASP pages, I want to use straight C# and then I'll use a templating language for my views. But I don't know where to begin? C# is a compiled language, so... how would I do this? Would I compile everything and then have apache hook into the (single) executable and pass in the the request URL? Could I request specific .cs pages and then have apache tell it to compile and then "display" it only if it's been updated? Can the "view" files be compiled individually to avoid having to recompile everything every time there's a change? Is there some "base" I can work from, or am I going to have to reinvent accessing GET and POST variables (by reading header info) and all sorts of other stuff we take for granted in languages like PHP?

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  • How to remove accent characters from an InputStream

    - by Samuh
    I am trying to parse a Rss2.0 feed on Android using a Pull parser. XmlPullParser parser = Xml.newPullParser(); parser.setInput(url.open(), null); The prolog of the feed XML says the encoding is "utf-8". When I open the remote stream and pass this to my Pull Parser, I get invalid token, document not well formed exceptions. When I save the XML file and open it in the browser(FireFox) the browser reports presence of Unicode 0x12 character(grave accent?) in the file and fails to render the XML. What is the best way to handle such cases assuming that I do not have any control over the XML being returned? Thanks.

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  • Windows Vista, Default Programs API, file format associations, and (un)installers - explosive mix!

    - by Alex T.
    My application is a rather well behaved Windows citizen, so when I ported it to Windows Vista/7 I replaced my custom file format association code with support for the Default Programs API. However I ran into a problem when trying to make uninstaller for my application - there seems to be no way to remove file format associations via Default Programs API. I tried to call IApplicationAssociationRegistration::ClearUserAssociations but it actually removes all associations, including the ones for other applications - completely restoring default state of the OS (which is of course unacceptable). I tried to call IApplicationAssociationRegistration::SetAppAsDefault to return file format associations to the previous "owner" - but it does not help, because my application handles many unique file formats which the OS does not support and there is no previous "owners". And Windows does not allow to pass empty strings to SetAppAsDefault... So what do I do? Any good solutions?

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  • Is it possible for parent window to notice if child window has been closed ???

    - by masato-san
    I have parent window (opener) and child (popup) ---------- -------------- | | | | | parent | -----> opens popup | child | | | | | ----------- -------------- Let's say, in parent page, I have js function hello() In order for child to call parent's hello() when the child window is closed and also pass an argument, I can do, window.close(); window.opener.hello(someArgument); This will close the window and also call parent's hello(); But what if I don't want to have the code window.opener.hello() in child page? I mean I want the code to be in parent page only One thing I can think of is: Somewhat parent knows when the child is closed (event listenr??? not sure in js) But in such case how to receive the argument? (i.e. some data back from the child)

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  • ExecuteStoreQuery passing parameter to StoreProcedure

    - by KDM
    Could someone help with passing a parameter object into my ExecuteStoreQuery. Im executing this from my Entities db and then creating my procedure on the fly is this possible and is my SQL correct. i need to pass a Id paramater value into my sql statement var node = db.ExecuteStoreQuery<Node>(@" @Id int // not sure about this declaration for paramater with c as ( select Id, Name, ParentId,[0] as level from Department d union all select d.Id, d.Name, d.ParentId, [level] + 1 from Department d join c on d.ParentId = c.Id) select * from c where c.Id = @Id" "Departments", System.Data.Objects.MergeOption.NoTracking, new object{ Id: department.Id} // <--paramater object not working);

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  • linux: disable using loopback and send data via wire between 2 eth cards of one comp

    - by osgx
    Hello I have a comp with 2 eth cards, connected with patch-cord (direct eth. cable from 1st to 2nd). The linux is installed, I want to send data from 1st network card to 2nd. And I want to force the packet to pass via cable. I can set up any ip on cards. With ping I get counters on cards constant. Is it possible with tcp/ip sockets? PS. I need to write a program. which will send packets via eth, so stackoverflow-related question. There can be some OS-dependent way, they will help me too

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  • How get file names using OpenFileDialog in .NET (1000+ file multiselect)

    - by Cole
    Maybe some of you have come across this before.... I am opening files for parsing. I'm using OpenFileDialog, of course, but i'm limited to a buffer of 2048 on the .FileNames string. Thus, I can only select a few hundred files. This is OK for most cases. However, fore example, I have in one case 1400 files to open. Do you know a way to do this with the open file dialog. I just want the string array of .FileNames, I pass that to parser class. I was also thinking of offering a FolderBrowserDialog option and then I'd use some other method to just loop through all the files in a directory, like the DirectoryInfo class. I'd do this as a last resort if I can't have an all in one solution.

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  • Facebook FBML and frame redirect

    - by user356089
    I have, what is probably a simple flash question. I have a flash countdown clock I am using in an Iframe of a facebook app. At the end of the countdown it fires this off myFlipCountDownClock.onFinish = function() { }; And I can add getURL or whatever. My problem is I need to fire off some facebook specific code. This being This does not work via getURL. My question is how could I pass this line of code? I am not sure what to do here. Any help would be greatly appreciated.

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  • How to parse text fragments located after tag by simplehtmldom?

    - by moogeek
    Hello! I'm using simplehtmldom to parse html and i'm stuck in parsing plaintext that is located outside of any tag (but between two different tags): <div class="text_small"> <b>?dress:</b> 7 Hange Road<br> <b>Phone:</b> 415641587484<br> <b>Contact:</b> Alex<br> <b>Meeting Time:</b> 12:00-13:00<br> </div> Is it possible to get this values of Adress, Phone, Contact, Meeting Time? I wonder if there is a opportunity to pass CSS Selectors into nextSibling/nextSibling functions...

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  • Django aggregation query on related one-to-many objects

    - by parxier
    Here is my simplified model: class Item(models.Model): pass class TrackingPoint(models.Model): item = models.ForeignKey(Item) created = models.DateField() data = models.IntegerField() In many parts of my application I need to retrieve a set of Item's and annotate each item with data field from latest TrackingPoint from each item ordered by created field. For example, instance i1 of class Item has 3 TrackingPoint's: tp1 = TrackingPoint(item=i1, created=date(2010,5,15), data=23) tp2 = TrackingPoint(item=i1, created=date(2010,5,14), data=21) tp3 = TrackingPoint(item=i1, created=date(2010,5,12), data=120) I need a query to retrieve i1 instance annotated with tp1.data field value as tp1 is the latest tracking point ordered by created field. That query should also return Item's that don't have any TrackingPoint's at all. If possible I prefer not to use QuerySet's extra method to do this. That's what I tried so far... and failed :( Item.objects.annotate(max_created=Max('trackingpoint__created'), data=Avg('trackingpoint__data')).filter(trackingpoint__created=F('max_created')) Any ideas?

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  • Specific checkboxes checked in symfony 1.4

    - by Tom
    Hi, I'm able to do the following for all checkboxes in a set (in an action): $this->form->getWidget('some_form_field')->setAttribute('checked', 'checked'); ... but I'm unable to set specific checkboxes to ticked on the basis of data returned from the db. I'm after something like: $this->form->getWidget('some_form_field')->setAttributes(array(....)); ... where I can refer to the specific checkboxes to be ticked somehow, or pass an array to it. There's nothing in the symfony documentation on this specifically and I've had enough of trying a dozen combinations to get it work. Any help would be appreciated. Thanks.

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  • Java List use through use of JSTL <c:forEach>

    - by Mark Lewis
    Hello If I have a JSF backing bean return an object of type ArrayList, I should be able to use to iterate over the elements in the list. Each element contains a map and although the question of how to access the map content through JSTL has been answered here, if I pass an array of such maps, I can't find how to iterate over them and still access the map content using JSTL. There's documentation which refers to simple iterators but not to those whose items are themselves maps. BalusC, I'm not trying to force the issue, just that I've been looking at this all day, and still cannot seem to be able to output the contents of my data structure through jsp (only on the console). This as a separate question still has merit. If anyone can give me a simple example of how a java List is iterated over in JSP I'd be massively appreciative. Mark

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  • MVC: Model View Controller -- does the View call the Model?

    - by Gary Green
    I've been reading about MVC design for a while now and it seems officially the View calls objects and methods in the Model, builds and outputs a view. I think this is mainly wrong. The Controller should act and retrieve/update objects inside the Model, select an appropriate View and pass the information to it so it may display. Only crude and rudiementary PHP variables/simple if statements should appear inside the View. If the View gets the information it needs to display from the Model, surely there will be a lot of PHP inside the View -- completely violating the point of seperating presentation logic.

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  • Combine guava's ImmutableList and varargs

    - by Stas Kurilin
    I want create constructor that will take one or more integers and save it into field as ImmutableList. According to "The right way to use varargs to pass one or more arguments" by Bloch's Item 42 I create smt like class Foo{ private final ImmutableList<Integer> bar; public Foo(Integer first, Integer... other) { this.bar = ImmutableList.<Integer>builder() .add(first) .addAll(Arrays.asList(other)) .build(); } } Why builder doesn't get generic automatically? And, as it smells. How I can rewrite it?

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  • How to provide custom connection string for Logging Application Block instead of using the one in .c

    - by Rory
    I'm modifying an existing winforms application to use the Logging Application Block. For historical reasons this app gets its main database connection string from the registry, and I'd like the Logging Application Block to use the same details for logging to the database. How can I do this? The approaches i can think of are: 1) Create a new TraceListener and implement the same sort of functionality as in FormattedDatabaseTraceListener. If I take this approach, should I inherit from CustomTraceListener, and if so how do I pass an attribute of the formatter to use? 2) Create a new ConfigurationSource that provides different details when asked for the database connection. All other requests would be passed through to a FileConfigurationSource, but when asked for the database connection details the object would read the appropriate bits from the registry instead. but it's not obvious which is more appropriate, or how to go about doing it. Any suggestions? I'm using EntLib 3.1. thanks, -Rory

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  • write client ip in iis 7.0 log over firewalls

    - by Guy Bertental
    Hi, I a solution for IIS 7.0 which runs on windows server 2008 64bit to write my clients IP to IIS logs while the server is behind firewalls and proxies (Pass X-Forwarded-For header value). I've tried to install the an ISAPI Filter written by Joe Pruitt. it works great on Windows Server 2003 32bit IIS 6.0, but seems to do nothing at all on windows server 2008 64bit IIS 7.0. Did anyone try this ISAPI filter on this version of OS? or have another solution? link to the Joe Pruitt's (from F5) ISAPI filter: http://devcentral.f5.com/weblogs/Joe/archive/2009/08/19/x_forwarded_for_log_filter_for_windows_servers.aspx best regards, guy bertental

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  • .htaccess Subfolder Redirect

    - by John K
    Hey Guys & Gals, I recently moved my WordPress website to a subfolder. I want to add a redirect in the .htaccess file so that the links to images I've uploaded originally to ~/wp-content/uploads/ will pass to ~/blog/wp-content/uploads. The .htaccess file must remain in the root folder for WordPress to read it properly. This is what I tried Redirect /wp-content/uploads/ /blog/wp-content/uploads That worked great, except I host other domains on this account, and all of the other domain's upload folders were being redirected in a similar manner. Is there a way to restrict this redirect to just one domain? So that example.com/wp-content/uploads redirects to example.com/blog/wp-content/uploads, but another.com/wp-content/uploads does not? Thanks everyone!

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  • Preventing $.POST hijack

    - by Jamie
    I'm currently building a facebook application. Lets say I have a variable $uid that identifies the user so I can store this in my database along with their submitted data. I pass $uid and $data via json encoded values using $.post. However, this doesn't prevent someone changing $uid to save data as someone else. I have been thinking about how to overcome this, so far I haven't found a solution apart from: create database with $uid $secretkey on first page load. When $.post send $secretkey with the post and then retrieve the $uid from the database. Would this be the correct approach to use?

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