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  • class __init__ (not instance __init__)

    - by wallacoloo
    Here's a very simple example of what I'm trying to get around: class Test(object): some_dict = {Test: True} The problem is that I cannot refer to Test while it's still being defined Normally, I'd just do this: class Test(object): def __init__(self): self.__class__.some_dict = {Test: True} But I never create an instance of this class. It's really just a container to hold a group of related functions and data (I have several of these classes, and I pass around references to them, so it is necessary for Test to be it's own class) So my question is, how could I refer to Test while it's being defined, or is there something similar to __init__ that get's called as soon as the class is defined? If possible, I want self.some_dict = {Test: True} to remain inside the class definition. This is the only way I know how to do this so far: class Test(object): @classmethod def class_init(cls): cls.some_dict = {Test: True} Test.class_init()

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  • Ext GWT (GXT) tooltip over a grid row

    - by Eduardo Palma
    I'm developing a custom tooltip using Ext GWT (GXT) for a project of mine, and this tooltip has to appear over Grid rows when they're selected. I can't use the default GXT tooltip or quicktip because I need be able to add Components (like buttons) to this tooltip. The problem is that the GXT Grid component doesn't expose a event related to mousing over a row (although there's RowClick and RowMouseDown). I tried adding a listener to the Grid with the OnMouseOver and OnMouseOut events anyway, but it doesn't work as expected. It fires these events up whenever you mouse over any of the divs and spans that composes a row. The only way I see to solve this is to subclass the GridView component and make each row become a Component itself, but that would be a lot of work and would probably impact performance as well. I can't help but think there's a better way to do this. Could someone more experienced with GXT give me a light?

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  • WPF slow to start on x64 in .NET Framework 4.0

    - by Robert Fraser
    I've noticed that if I build my WPF application for Any CPU/x64, it takes MUCH longer to start (on the order of about 20 seconds) or to load new controls than it does if started on x86 (in release & debug modes, inside or outside of VS). This occurs with even the simplest WPF apps. The problem is discussed in this MSDN thread, but no answer was provided there. This happens only with .NET 4.0 -- in 3.5 SP1, x64 was just as fast as x86. Interestingly, Microsoft seems to know about this problem since the default for a new WPF project in VS2010 is x86. Is this a real bug or am I just doing it wrong? EDIT: Possibly related to this: http://stackoverflow.com/questions/2788215/slow-databinding-setup-time-in-c-net-4-0. I'm using data binding heavily.

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  • mongomapper, rails3 edge: undefined method `to_key' on form_for

    - by z3cko
    when i am trying to get the basic devise examples running with current git versions from rails, mongomapper and devise, i have the following error appearing: undefined method `to_key' for #<Admin:0x23dee04> here is my actual source: 4: = form_for @admin, :url => admins_path do |f| 5: - field_set_tag 'Update my email' do 6: %p= f.text_field :email 7: %p= error_message_on @admin, :email @admin is the currently logged in user (@admin= current_admin) the same error occurs when trying to use @admin=Admin.first in the controller i am not quite sure if this is a mongomapper problem, might also be rails3 related... thanks for any pointers...

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  • GDI & Hardware Cursor

    - by Abhi
    Dear All I am working on iMX51 project. I want to know what does GDI and hardware cursor means? The RTOS which i am using is WINCE 6.0 r3. We are actually looking to speed up the GDI and to implement the hardware cursor. So for that i want to know abt the GDI and the Hardware Cursor. I am also referring WC600_MX51_SDK_0912_ReferenceManual.pdf & MCIMX51RM.pdf and in these pdf i came to know that the hardware cursor is related to Display Processor module . But still i am unclear, what exactly does speed up of GDI means & Hardware cursor means? Please guide me the correct step to how to achieve my target....

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  • Django QuerySet filter method returns multiple entries for one record

    - by Yaroslav
    Trying to retrieve blogs (see model description below) that contain entries satisfying some criteria: Blog.objects.filter(entries__title__contains='entry') The results is: [<Blog: blog1>, <Blog: blog1>] The same blog object is retrieved twice because of JOIN performed to filter objects on related model. What is the right syntax for filtering only unique objects? Data model: class Blog(models.Model): name = models.CharField(max_length=100) def __unicode__(self): return self.name class Entry(models.Model): title = models.CharField(max_length=100) blog = models.ForeignKey(Blog, related_name='entries') def __unicode__(self): return self.title Sample data: b1 = Blog.objects.create(name='blog1') e1 = Entry.objects.create(title='entry 1', blog=b1) e1 = Entry.objects.create(title='entry 2', blog=b1)

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  • How do I create sub-applications in Django?

    - by jamida
    I'm a Django newbie, but fairly experienced at programming. I have a set of related applications that I'd like to group into a sub-application but can not figure out how to get manage.py to do this for me. Ideally I'll end up with a structure like: project/ app/ subapp1/ subapp2/ I've tried: manage.py startapp app.subapp1 manage.py startapp app/subapp1 but this tells me that / and . are invalid characters for app names I've tried changing into the app directory and running ../manage.py subapp1 but that makes supapp1 at the top level. NOTE, I'm not trying to directly make a stand-alone application. I'm trying to do all this from within a project.

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  • WinRT GridView scrolling setup work differently on mouse/kb and touch

    - by Jay Kannan
    I'm trying to mimic the functionality of the NetFlix app, with a strip on the left that collapses on scrolling, I had to offset the tiles on the GridView a bit to the right so that they can accomodate that behavior. They seem to work alright in keyboard and scroll completely to the right (although I noticed the scrollbar suddenly grows in size when I hit the left boundaries. this totally changes when I use it on touch - I seem to have a limit on the right and the scrolling doesnt scroll past the last 100 pixels or so. how do I take care of this. I'm assuming it is related to the bug here, but didn't seem to solve the problem with that solution there. "Sticky scrolling" issue in WinRT XAML GridView control

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  • Are TClientDataSets part of your toolkit, or have they been replaced by something else?

    - by Tom1952
    I have 50 or 60 records of four or five fields. I need to load the records into RAM (From a CSV file), search on different fields, enumerate, etc. Not a lot of data, not a lot of functionality. I was all excited to use the new (to me in D2010) TDictionary or TList, but thought that a TClientDataset (which I've never used before) might be more appropriate. With a TClientDataSet, I can use .Locate on any field, enumerate with while NOT CDS.EOF, etc. And, what exactly is this MidasLib that I have to use with CDS? Can I reasonably expect it to be supported in the future? Is TClientDataSet still considered state-of-the-art, or is it showing its age and somewhat deprecated (literally and figuratively)? I've seen colleagues use DX's TdxMemData. Why use it (or any of the other handful of memory datasets I've seen while googling this issue) rather than a CDS? Related question: http://stackoverflow.com/questions/274958/delphi-using-tclientdataset-as-an-in-memory-dataset

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  • 404 Error - HEAD request on default page

    - by Matt
    I am working on a project where we are about to go to internal release. So we are working to clean up the small problems before then. I was looking at our logs and noticed a high number of 404 errors. On further inspection it seems that all of them are related to HEAD requests. I haven't been able to find any substantive information about the preferred method for handling this in a standards compliant manner. Is there anything out there that can point out the proper way to handle that.

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  • Django Forms, Foreign Key and Initial return all associated values

    - by gramware
    I a working with Django forms. The issue I have is that Foreign Key fields and those using initial take all associated entries (all records associated with that record other then the one entry i wanted e.g instead of getting a primary key, i get the primary key, post subject, post body and all other values attributed with that record). The form and the other associated queries still work well, but this behaviour is clogging my database. How do i get the specific field i want instead of all records. An example of my models is here: A form field for childParentId returns postID, postSubject and postBody instead of postID alone. Also form = ForumCommentForm(initial = {'postSubject':forum.objects.get(postID = postID), }) returns all records related to postID. class forum(models.Model): postID = models.AutoField(primary_key=True) postSubject = models.CharField(max_length=25) postBody = models.TextField() postPoster = models.ForeignKey(UserProfile) postDate = models.DateTimeField(auto_now_add=True) child = models.BooleanField() childParentId = models.ForeignKey('self',blank=True, null=True) deleted = models.BooleanField() def __unicode__(self): return u'%s %s %s %s %s' % (self.postSubject, self.postBody, self.postPoster, self.postDate, self.postID

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  • Port scientific software to GPU and publish it

    - by Werner
    Hi, let's say that I am a physicist and that I am the master of the universe when it comes to port salready existing oftware to GPU's with 100x or more speedups. Let's say that I find that some other scientist, which does not know how to program GPU, publishes the Open Source code in his/her website of a physical simulation program, in the field I am expert on. Let's say that I realize "I can port that code to GPU", and I suggest him, but he shows no interest. My interest here is, 1) to port it to GPU, 2) to publish this result in a scientific journal related with physics and/or computer science My question for you is 1- would you proceed here to port the code to GPU (or other new arch) and publish it? 2- how would you do it and which journal do you suggest? Thanks

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  • python variable scope

    - by Oscar Reyes
    I'm teaching my self python and I was translating some sample class Student: def __init__( self, name, a,b,c ): self.name = name self.a = a self.b = b self.c = c def average(self): return ( a+b+c ) / 3.0 Which is pretty much my intended class definition Later in the main method I create an instance and call it a if __name__ == "__main__" : a = Student( "Oscar", 10, 10, 10 ) That's how I find out that the variable a declared in main is available to the method average and that to make that method work , I have to type self.a + self.b + self.c instead What's the rationale of this? I found related questions, but I don't really know if they are about the same

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  • Publish limit on Facebook's Graph API

    - by Andy
    Hey guys, I've been using the Graph API for a while. One feature of my application is that it allows a user to post a message on their friends walls (dont worry it is not spam). Anyway...there is a limit on the API and it will only allow a certain number of posts before failing. I've read on the facebook bucket allocation limits but my app's limit has not moved. It was 26 when i created the app. It is still 26 even though there are about 20 users. What can I do to increase my pulish limit? And I promise this app is not used for anything spam related.

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  • unrecognized selector sent to instance on deviceOrientationDidChange

    - by clopez
    Right now my app should only supports Portrait. On Summary/Supported Device Orientations I have only selected Portrait so I'm hoping that my app will not rotate. I was testing the app on a device and suddenly I'm getting the following error randomly: [UIButtonContent deviceOrientationDidChange:]: unrecognized selector sent to instance It happens when I rotate the device SOMETIMES, is not consistent, and is not always over UIBUttonContent. I supposed that if I only select Portrait, deviceOrientationDidChange should not be called or should be ignored. Other times my app crashes with an EXC_BAD_ACCESS (code=1, address=something) but it happens when I rotate the device so I'm guessing that both errors are related. I don't know what to do with this, it's hard to debug because I don't have feedback, the All Exceptions Breakpoint is not being called, so I don't know where and exactly why this is happening. Any idea on how to debug this is welcome.

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  • What's wrong with Lotus Notes / Lotus Domino

    - by Anthony Gatlin
    I have a client who is using Lotus Domino for their web application/server platform. The client has two "web developers" who are more comfortable with Lotus Domino than more mainstream tools and technologies and are not enthusiastic about making a switch. I have been asked to provide an assessment of why it may be prudent to migrate to a different web application platform. I would be particularly interested in understanding deficiencies related to the platform as I have very little knowledge of Domino but am very familiar with other platforms. In addition to the fact that Apache has over 70% of web server market, IIS over 21%, and Lotus almost 0%, what other reasons would you give for moving away from this platform? Thank you for your help!

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  • How do I use waf to build a shared library?

    - by James Morris
    I want to build a shared library using waf as it looks much easier and less cluttered than GNU autotools. I actually have several questions so far related to the wscript I've started to write: VERSION='0.0.1' APPNAME='libmylib' srcdir = '.' blddir = 'build' def set_options(opt): opt.tool_options('compiler_cc') pass def configure(conf): conf.check_tool('compiler_cc') conf.env.append_value('CCFLAGS', '-std=gnu99 -Wall -pedantic -ggdb') def build(bld): bld.new_task_gen( features = 'cc cshlib', source = '*.c', target='libmylib') The line containing source = '*.c' does not work. Must I specify each and every .c file instead of using a wildcard? How can I enable a debug build for example (currently the wscript is using the debug builds CFLAGS, but I want to make this optional for the end user). It is planned for the library sources to be within a sub directory, and programs that use the lib each in their own sub directories.

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  • One to many too much data returned - MySQL

    - by Evan McPeters
    I have 2 related MySQL tables in a one to many relationship. Customers: cust_id, cust_name, cust_notes Orders: order_id, cust_id, order_comments So, if I do a standard join to get all customers and their orders via PHP, I return something like: Jack Black, jack's notes, comments about jack's 1st order Jack Black, jack's notes, comments about jack's 2nd order Simon Smith, simon's notes, comments about simon's 1st order Simon Smith, simon's notes, comments about simon's 2nd order The problem is that *cust_notes* is a text field and can be quite large (a couple of thousand words). So, it seems like returning that field for every order is inneficient. I could use *GROUP_CONCAT* and JOINS to return all *order_comments* on a single row BUT order_comments is a large text field too, so it seems like that could create a problem. Should I just use two separate queries, one for the customers table and one for the orders table? Is there a better way?

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  • Using Ribbon as tab control

    - by zendar
    I would like to create application with ribbon interface that looks and behaves like this: application have one main form with ribbon ribbon has multiple tabs when user switches tab on ribbon, panel below ribbon changes and displays content related to ribbon panel. That way, ribbon tab acts as if it is tab over whole window. For example, ribbon have two tabs: people and tasks. When current ribbon panel is "people", below ribbon is displayed grid with people data. Ribbon contains command for manipulating people data. When user switches to "tasks" tab on ribbon, application should display form with tasks below ribbon. Question is can ribbon be used in this scenario? I read "OFFICE FLUENT™ USER INTERFACE DESIGN GUIDELINES" that describe what you can and cannot do with ribbon, but I could not find anything about this.

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  • Building TimeZone object in Java

    - by Harish
    I build a Java TimeZone object using the TimeZone String like GMT-8,GMT,PST,EST etc. This did not consider whether the timezone is daylight saving enabled or not.Now there is a requirement to include this check and instead of giving the input as PDT or EDT the daylight saving is given as a seperate flag.I am not sure whether TimeZone has a direct method to change the dayLight saving property of that TimeZone. So if I get an input like PST and DaylightSaving as true then I have to change the string as PDT.Whats even worse is sometimes I will get inputs like GMT-8 or GMT-6 with Day light flag as either true or false. Is there a way out ? I can't use thirdparty TimeZone related classes Code Sample: TimeZone timeZone = TimeZone.getTimeZone("EST"); TimeZone timeZone = TimeZone.getTimeZone("PST"); TimeZone timeZone = TimeZone.getTimeZone("GMT-8");

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  • Log4j Grouping application logs

    - by mhanda
    Hi, I am trying to group logs of multiple related applications to a single log file. For example I have 3 applications A1.esb, A2.esb, A3.esb. I want all the logs from these 3 applications get logged to a single log file called A.log. Similarly, I want B.log for B1.esb, B2.esb and B3.esb. I am using log4j in JBoss application server. I have tried to use TCLFilter but I only succeeded in getting individual applications logging to individual log files. As in, A1.esb logging to A1.log, A2.esb logging to A2.log and so on. But I couldn't figure out a way of grouping these loggings.

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  • Migrating from CPython to Jython

    - by itsadok
    I'm considering moving my code (around 30K LOC) from CPython to Jython, so that I could have better integration with my java code. Is there a checklist or a guide I should look at, to help my with the migration? Does anyone have experience with doing something similar? From reading the Jython site, most of the problems seem too obscure to bother me. I did notice that: thread safety is an issue Unicode support seems to be quite different, which may be a problem for me mysqldb doesn't work and needs to be replaced with zxJDBC Anything else? Related question: What are some strategies to write python code that works in CPython, Jython and IronPython

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  • Import AppleScript methods in another AppleScript?

    - by DASKAjA
    Is there a way to use defined AppleScript methods in other AppleScripts which reference the original AppleScript with something similar to import (f.e. in PHP)? I wrote a methode to set Skype status and mood-text: on setSkypeStatus(status, mood_text) tell application "System Events" set skypeRunning to count (every process whose name is "Skype") if skypeRunning > 0 then --only set status if skype is running tell application "Skype" set myStatus to "SET USERSTATUS " & status set myMood to "SET PROFILE MOOD_TEXT " & mood_text send command myStatus script name "AppleScript" send command myMood script name "AppleScript" return skypeRunning end tell else return skypeRunning end if end tell end setSkypeStatus now I'm searching for something like import skype_methods.scpt. Is there such a functionality. I can't something related with Google.

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  • Where to place ClientAccessPolicy.xml for Local WCF Service?

    - by cam
    I'm trying to create a basic WCF Service and Silverlight client. I've followed the following tutorial: http://channel9.msdn.com/shows/Endpoint/Endpoint-Screencasts-Creating-Your-First-WCF-Client/ Since Silverlight 4 was incompatible with the WSHttpBinding, I changed it to BasicHttpBinding. Unfortunately I keep getting this error now: "An error occurred while trying to make a request to URI'**'.This could be due to attempting to access a service in a cross-domain way without a proper cross-domain policy in place, or a policy that is unsuitable for SOAP services. You may need to contact the owner of the service to publish a cross-domain policy file and to ensure it allows SOAP-related HTTP headers to be sent." I placed clientaccesspolicy.xml in the root directory of the WCF project (which is in the same solution as the Silverlight client). This did not solve the problem. What do I need to do?

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  • Best non-development book for software developers

    - by Dima Malenko
    What is the best non software development related book that you think each software developer should read? Note, there is a similar, poll-style question here: What non-programming books should programmers read? Update: Peopleware is a great book, must read, no doubt. But it is about software development so does not count. Update: We ended up suggesting more than one book and that's great! Below is summary (with links to Amazon) of the books you should consider for your reading list. The Design of Everyday Things by Donald Norman Getting Things Done by David Allen Godel, Escher, Bach by Douglas R. Hofstadter The Goal and It's Not Luck by Eliyahu M. Goldratt Here Comes Everybody by Clay Shirky ...to be continued.

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