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• Facebook graph api - delete like

  - by Martin

  Hi there, I'm developing an app for Facebook in PHP, part of which lists the user's "likes". I would like to add a link next to each like so that the user can manage their likes by deleting them where they see fit. Facebook mentions this in their graph api docs: "You can delete a like by issuing a DELETE request to /POST_ID/likes (since likes don't have an ID)." But each like must have an id - how else would you delete it? Has anyone done this before, any help will be appreciated.

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• Parsing an Open XML doc via styled blocks

  - by Chris B. Behrens

  I'm working with docx docs, and I need to parse a document into sections on the basis of headings styled with the "heading 1" style. So if I had a doc like this (markup is pseudocode): <doc> <title style>Doc Title</title style> <heading1>First Section</heading1> ... <heading2>Second Section</heading2> ... <heading3>Third Section</heading3> ... </doc> I'd want to break this into a doc with four sections, the first being the content that precedes the first section. I figure that this is probably pretty simple once you're familiar with Open XML, but I am not. TIA.

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• Is there a way in CXF to disable the SoapCompressed header for debugging purposes?

  - by Don Branson

  I'm watching CXF service traffic using DonsProxy, and the CXF client sends an HTTP header "SoapCompressed": HttpHeadSubscriber starting... Sender is CLIENT at 127.0.0.1:2680 Packet ID:0-1 POST /yada/yada HTTP/1.1 Content-Type: text/xml; charset=UTF-8 SoapCompressed: true Accept-Encoding: gzip,gzip;q=1.0, identity; q=0.5, *;q=0 SOAPAction: "" Accept: */* User-Agent: Apache CXF 2.2 Cache-Control: no-cache Pragma: no-cache Host: localhost:9090 Connection: keep-alive Transfer-Encoding: chunked I'd like to turn SoapCompressed off in my dev environment so that I can see the SOAP on the wire. I've searched Google and grepped the CXF source code, but don't see anything in the docs or code that reference this. Any idea how to make the client send "SoapCompressed: off" instead, without routing it through Apache HTTPD or the like? Is there a way to configure it at the CXF client, in other words?

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• Performance Overhead of Perf Event Subsystem in Linux Kernel

  - by Bo Xiao

  Performance counters for Linux are a new kernel-based subsystem that provide a framework for all things performance analysis. It covers hardware level (CPU/PMU, Performance Monitoring Unit) features and software features (software counters, tracepoints) as well. Since 2.6.33, the kernel provide 'perf_event_create_kernel_counter' kernel api for developers to create kernel counter to collect system runtime information. What I concern most is the performance impact on overall system when tracepoint/ftrace is enabled. There are no docs I can find about them. I was once told that ftrace was implemented by dynamically patching code, will it slow the system dramatically?

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• Adding Street View controls (the two icons just above the +) to a Google Map (v3)

  - by AlexV

  It's probably something really simple, but I can't find it in the docs and I can't find a map with it to check it's source... I use version 3 of the API. I guess it's an something to add in myOptions? var latlng = new google.maps.LatLng(-34.397, 150.644); var myOptions = { zoom: 8, center: latlng, mapTypeId: google.maps.MapTypeId.ROADMAP } map = new google.maps.Map(document.getElementById('map_canvas'), myOptions); Currently I only have dragging controls and the zoom pane controls. I would like to have the two Street View controls icons too. If you want full source, I'm using this example as a base (how would you add Street View controls to this example?).

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• Setup Hibernate Session Factory in Tomcat

  - by Mark Estrada

  Hi All, I have been reading around the Hibernate core and I am still exploring some of its capability. It was mention in the docs that the SessionFactory is the heavyweight component of Hibernate thus it should be setup only once in a web application and in singleton. Each Session factory should pertain to one JDBC connection. Does anybody knows how to properly setup the session factory in tomcat web applications? Any links or tutorials would be better. Should I set it up as a contextlistener class also? Thanks.

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• os.path.getmtime() doesn't return fraction of a second

  - by haridsv

  I compile python 2.6.4 for centos 5.3 and find this issue that os.path.getmtime() or os.stat().m_time doesn't have the fraction part. As per docs, if os.stat_float_times() True, then it should return float value. In my case, I do see it as float, but no fraction part (it is 0). In [3]: os.path.getmtime('/tmp') Out[3]: 1268339116.0 In [4]: os.stat('/tmp') Out[4]: posix.stat_result(st_mode=17407, st_ino=508897L, st_dev=29952L, st_nlink=7, st_uid=0, st_gid=0, st_size=4096L, st_atime=1268101696, st_mtime=1268339116, st_ctime=1268339116) In [5]: os.stat_float_times() True In [6]: os.stat('/tmp').st_mtime Out[6]: 1268339116.0 It is also strange that the stat() output seems like an int. On windows, I do see a fraction part with the same python version. I am running centos on top of colinux, could that be playing a role, or is it some python build issue? I couldn't find any hits for generic colinux issue. May be it is how colinux configures the filesystem? What would I need to check in that case?

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• How to use this Color's constructor? Java

  - by MaxMackie

  According to Oracle's site, the class Color has a constructor that accepts a single int value which represents an RGB value. http://download.oracle.com/javase/1.4.2/docs/api/java/awt/Color.html#Color(int) An RGB color is actually three different numbers ranging from 0-255. So combining them together to make one int would look like this: White 255,255,255 White 255255255 Right? So I pass this to the constructor and get a vibrant teal color. What am I doing wrong? What haven't I understood?

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• Android equivalent work-around for View.getX() before API 11?

  - by user48998

  I'm using the getX() and getY() method on a view for some special dragging logic (not animation, i.e. I never use setX/Y methods, I just need the getters to check). However, I've come to realize that these are only available post-API 11. The docs for getX() say that is it the addition of the 'left' property and the 'translationX' property. All well and good, except get/setTranslationX() is only around since API 11 as well. I was wondering if there was any knowledge on what this method returns behind the scenes, so I could maybe put in a workaround. Thanks for any help - Chase

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• how do I find the number of xml children in AS3

  - by vasion

  so live docs says this for calling .lenght() on an XML object For XML objects, this method always returns the integer 1. The length() method of the XMLList class returns a value of 1 for an XMLList object that contains only one value. i called it on an xml that looked like this: <xml> <picture>1</picture> <picture>2</picture> </xml> and it reallt returned 1. how do i get the number of children in my xml?

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• supply inputs to python unittests

  - by zubin71

  I`m relatively new to the concept of unit-testing and have very little experience in the same. I have been looking at lots of articles on how to write unit-tests; however, I still have difficulty in writing tests where conditions like the following arise:- Test user Input. Test input read from a file. Test input read from an environment variable. Itd be great if someone could show me how to approach the above mentioned scenarios; itd still be awesome if you could point me to a few docs/articles/blog posts which I could read.

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• Rails - Permission denied when try to save uploaded file in windows

  - by logoin

  I'm writing my own file upload in rails. I saw some related questions but it doesn't answer my question. I use File.open ("#{RAILS_ROOT}/public/docs/attachments/#{@file_name}", "wb") {|f| f.write(@temp_file.read)} to write the file on my local machine (OS: Windows XP) instead of saving it in database. I got a Permission denied error on the File.open method. Since I have cygwin installed, I chmod 777 the folder that files should write to and also make sure the file I upload can be read. But I'm still getting the same error. Any ideas? Thanks!

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• How are variables bound to the body of a define_method?

  - by Chris

  While trying to brush up my Ruby skills I keep running across this case which I can't figure out an explanation for by just reading the API docs. An explanation would be greatly appreciated. Here's the example code: for name in [ :new, :create, :destroy ] define_method("test_#{name}") do puts name end end What I want/expect to happen is that the name variable will be bound to the block given to define_method and that when #test_new is called it will output "new". Instead each defined method outputs "destroy" -- the last value assigned to the name variable. What am I misunderstanding about define_method and its blocks? Thanks!

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• Caching Web UserControl by Propety is not working (Grr!)

  - by PapillonUK

  Here's my code behind: <PartialCaching(60, Nothing, "UsrCtl_WebUserControl.CacheString", Nothing, True)> _ Partial Class UsrCtl_WebUserControl Inherits System.Web.UI.UserControl Private _CacheString As String Public Property CacheString() As String Get Return _CacheString End Get Set(ByVal value As String) _CacheString = value End Set End Property End Class Here's the user control embedded in a page: <uc:wuc ID="wuc" runat="server" CacheString="A" /> And in another page: <uc:wuc ID="wuc" runat="server" CacheString="B" /> According to the docs this control should maintain a different, 60 second cached version for each value of the CacheString property. It doesn't work - it caches for 60 seconds, but only one cached copy is created regardless of what I put in the CacheString property. Anyone any ideas what i'm doing wrong? - After 4 hours of this I have no hair or nails left - please save my monitor from the brick.

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• Why can't I start XML entity names with 'xml''?

  - by flamey

  <XmlInfo /> I ran into problem using Perl's popular SOAP::Lite module, where it wouldn't accept XML entity names starting with "xml" (regardles letters' case). The author of the module replied to email saying that entity names starting with "xml" are not permitted in XML specification, but I couldn't find it in W3C's documents for 1.0 and 1.1 specs, I also couldn't find it in any of the articles or guidelines docs about XML entity naming. In fact some guideline documents used names starting with xml as an example, and lots of people are using it, as I see via Google Code Search. So are there any restrictions (besides which characters to use as defined in W3C's documents) in Entity naming in XML? Is there a restriction saying you can't name entities starting with "xml"?

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• access models and forms within modules

  - by sims

  Hi Stackers, What is the best way to access my models and forms from a controller of a module? Let's explain with "pictures": /application/module/storage/controllers/IndexController.php needs to call readAction in the class called storage_Model_Files in /application/module/storage/models/Files.php I've made this app's dir structure and these forms and models with zf.sh (Zend_Tool). I've read about all sorts of ways of manually including these files. I want to lazy load them much like everything is done automatically with the default module. I can't seem to find how in the docs. Does that make sense? I have: resources.frontController.moduleDirectory = APPLICATION_PATH "/modules" in my application.ini file. So I can access my controllers fine. Thanks for your help!

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• Pass errors in Django using HttpResponseRedirect

  - by JPC

  I know that HttpResponseRedirect only takes one parameter, a URL. But there are cases when I want to redirect with an error message to display. I was reading this post: How to pass information using an http redirect (in Django) and there were a lot of good suggestions. I don't really want to use a library that I don't know how works. I don't want to rely on messages which, according to the Django docs, is going to be removed. I thought about using sessions. I also like the idea of passing it in a URL, something like: return HttpResponseRedirect('/someurl/?error=1') and then having some map from error code to message. Is it good practice to have a global map-like structure which hard codes in these error messages or is there a better way? Or should I just use a session EDIT: I got it working using a session. Is that a good practice to put things like this in the session?

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• How can I change Twitter's Share button height?

  - by user1035890

  How can I change Twitter's icon height? I have another custom image, but the height stays the same. How do I fix this? https://dev.twitter.com/docs/tweet-button and I used the div method and not the iframe because I wanted to add the data-title I used this code: <script src="//platform.twitter.com/widgets.js" type="text/javascript"></script> <div> <a href="https://twitter.com/share" class="twitter-share-button" data-url="https://dev.twitter.com/pages/tweet_button" data-via="your_screen_name" data-text="Checking out this page about Tweet Buttons" data-related="anywhere:The Javascript API" data-count="vertical">Tweet</a> </div>

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• Any particular reason why FaceBook's Subscribe Button isn't showing on my web page?

  - by Axonn

  I got this FaceBook profile for my upcoming website and I can't get the Subscribe button to show, NOT EVEN ON FaceBook's page! http://www.facebook.com/profile.php?id=100003492130845 Now, if you go here on FaceBook's page where we build the Subscribe button: http://developers.facebook.com/docs/reference/plugins/subscribe/ And add the above link, it will show nothing. I enabled subscribing and I also created myself a page, linked to the same profile: http://www.facebook.com/pages/Axonn-Says/372194956141393 But not even the page works ::- /. LATER EDIT: I temporarily added 2 other Subscribe buttons on my website to demonstrate that it works for example for Mark Zuck's page and to demonstrate that there are no JS conflicts. The 2 buttons appeared ok, but my button still didn't show up.

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• AspectJ join point with simple types

  - by Jon

  Hi! Are there defined join points in arithmetics that I can catch? Something like: int a = 4; int b = 2; int c = a + b; Can I make a pointcut that catches any one of those lines? And what context will I be able to get? I would like to add a before() to all int/float/double manipulation done in a particular method on a class, is that possible. I see in the AspectJ docs that there are defined join points for object initialization and method calls. Is declaring an int an object initialization and does the + operator count as a method call? Thanks!

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• Operational Transformation library?

  - by gamers2000

  I'm looking for a library that would allow me to synchronize text in real-time between multiple users (ala Google Docs). I've stumbled upon Operational Transformation, which seems to fit my needs. Having said that, I understand the gist of OT, but not the math nor implementation of OT. Thus, I was wondering if there was a drag'n'drop Javascript library that would hook into a text area, generate the transforms, then allow me to apply those transformations onto another client? (I've gotten the Etherpad source, but I can't make head or tails out of it. If anyone could point out how to leverage on Etherpad's OT implementation, that'll be great too!)

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• What to beware of reading old Numarray tutorials and examples?

  - by DarenW

  Python currently uses Numpy for heavy duty math and image processing. The earlier Numeric and Numarray are obsolete, but still today there are many tutorials, notes, sample code and other documentation using them. Some of these cover special topics of interest, some are well written but haven't been updated or replaced, or are otherwise of use. Quite a bit is the same between Numeric, Numarray and Numpy, so I usually get good mileage out these older docs. Ocassionaly, though, I run into a line of code that results in error. Not often enough to remember how to get around it, but usually I figure it out at the cost of some time. What are the main things to watch out for when relying on such older documentation for current Numpy use? Is there a list of how to translate the differences that exist?

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• Binning into timeslots - Is there a better way than using list comp?

  - by flyingcrab

  I have a dataset of events (tweets to be specific) that I am trying to bin / discretize. The following code seems to work fine so far (assuming 100 bins): HOUR = timedelta(hours=1) start = datetime.datetime(2009,01,01) z = [dt + x*HOUR for x in xrange(1, 100)] But then, I came across this fateful line at python docs 'This makes possible an idiom for clustering a data series into n-length groups using zip(*[iter(s)]*n)'. The zip idiom does indeed work - but I can't understand how (what is the * operator for instance?). How could I use to make my code prettier? I'm guessing this means I should make a generator / iterable for time that yields the time in graduations of an HOUR?

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• Multiple Producers Single Consumer Queue

  - by Talguy

  I am new to multithreading and have designed a program that receives data from two microcontroller measuring various temperatures (Ambient and Water) and draws the data to the screen. Right now the program is singly threaded and its performance SUCKS A BIG ONE. I get basic design approaches with multithreading but not well enough to create a thread to do a task but what I don't get is how to get threads to perform seperate task and place the data into a shared data pool. I figured that I need to make a queue that has one consumer and multiple producers (would like to use std::queue). I have seen some code on the gtkmm threading docs that show a single Con/Pro queue and they would lock the queue object produce data and signal the sleeping thread that it is finished then the producer would sleep. For what I need would I need to sleep a thread, would there be data conflicts if i didn't sleep any of the threads, and would sleeping a thread cause a data signifcant data delay (I need realtime data to be drawn 30 frames a sec) How would I go about coding such a queue using the gtkmm/glibmm library.

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• How do you position a wx.MessageDialog (wxPython)?

  - by Jason

  Hi: Is there any reason why the position, pos, flag doesn't seem to work in the following example? dlg = wx.MessageDialog( parent=self, message='You must enter a URL', caption='Error', style=wx.OK | wx.ICON_ERROR | wx.STAY_ON_TOP, pos=(200,200) ) dlg.ShowModal() dlg.Destroy() The documentation is here: http://www.wxpython.org/docs/api/wx.MessageDialog-class.html 'self' is a reference to the frame. I'm running in Windows Vista, python26, wxpython28. The message dialog always appears to be in the middle of the screen. If for some reason it's not possible to position the dialog, is there anyway to at least restrict the dialog to be in the frame, rather than just the center of the screen? thanks!

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