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• What's the .proto equivalent of List<T> in protobuf-net?

  - by Marc Bollinger

  To keep some consistency, we use code generation for a lot of our object models, and one of the offshoots of that has been generating the .proto files for ProtocolBuffers via a separate generation module. At this point though, I'm stumped at how to implement the generation for when it happens upon a List<T> object. It looks like this is possible via contracts: [ProtoMember(1)] public List<SomeType> MyList {get; set;} but outside of that, I'm not sure how or if it's possible to do this only from creating the .proto file/using the VS custom tool. Any thoughts?

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• rake task can't access rails.cache

  - by mark

  Hi I want to call a rake task from a cron job that stores remote weather data in the rails cache. However, I must be doing something pretty wrong here because I cannot find any solution through countless fruitless searches. Say I define and call this task namespace :weather do desc "Store weather from remote source to cache" task :cache do Rails.cache.write('weather_data', Date.today) end end I get the error Anonymous modules have no name to be referenced by Which leads me to believe the rails cache isn't available. Outputting Rails.class from the rake file gives me Module but Rails.cache.class again returns the above error. Do I need to include something here? Am I just hopeless at internet? :) Thanks in advance.

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• How to find out who's causing an access violation error?

  - by Fernando

  I'm getting reports that my app is causing a GPF on some Vista machines. The error message is something like this: access violation at 0x75784062 ( tried to write to 0x00000006) In order to fix this, I first need to know exactly who is causing this GPF: my main exe, some third party component, one of my own activex components, a dll, etc... How can I find this out? What tools can pinpoint the exact module that caused this mess? Any help would be greatly appreciated. PS My app is coded in VB6 and my activex controls are written in Delphi 2007.

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• Prime Number - Data while loading

  - by Emroot

  Hi, I was trying in Ruby on Rails how to find a prime number. Here is my code : helper : app/helpers/test_helper.rb module TestHelper def prime_number? number index = 2 tmp = 0 while index <= number if tmp < 1 if (number % index) == 0 tmp += 1 end else return false end index += 1 end return true end end and my view : app/views/test/index.html.erb <% (2..100).each do |i| -%> <% if prime_number? i %> <%= i %> <% end -%> <% end -%> So my question is : How can you load data while it's calculating ? I mean if I replace 100 by 100000 in my view, how can I see data on my view while my helper method is calculating ? Do I need to use ajax or rails provide a tool for that ? Thank you.

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• Spring 3 - Custom Security

  - by Eqbal

  I am in the process of converting a legacy application from proprietary technology to a Spring based web app, leaving the backend system as is. The login service is provided by the backend system through a function call that takes in some parameter (username, password plus some others) and provides an output that includes the authroizations for the user and other properties like firstname, lastname etc. What do I need to do to weave this into Spring 3.0 security module. Looks like I need to provide a custom AuthenticationProvider implementation (is this where I call the backend function?). Do I also need a custom User and UserDetailsService implementation which needs loadUserByName(String userName)? Any pointers on good documentation for this? The reference that came with the download is okay, but doesn't help too much in terms of implementing custom security.

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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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• include_once fails!

  - by user220201

  Hi, I am new to php. I thought I knew enough but apparently do not. I am trying to use the OAuth.php from code.google.com. So I include OAuth.php in my code. Here is my php file - index.php <?php print 'Hello1'; include 'test.php'; print 'Hello2'; include 'OAuth.php'; print 'Hello3'; ?> Here test.php, OAuth.php and index.php are all in the same directory. Amazingly enough, I see Hello1 and Hello2 but not Hello3. What am I missing. Its driving me crazy. Any help is greatly greatly appreciated. I am using php5 with apache 2.2 and also have the oauth.so module installed and loaded from php.net. SV

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• How can I hide the taxonomy field for authenticated users but show it for other users in Drupal 6?

  - by Jaymie

  I have a Drupal (v6.17) Content Type which includes a Taxonomy field. I want to hide this from ordinary Authenticated Users, but want it available to my Site Contributor role users, so they can review and then assign tags to user-created nodes. I've tried overriding the Node Add/Edit form in Panels 3 by creating a panel variant especially for Authenticated Users, which would exclude the Taxonomy field. However, the Taxonomy field is bundled in with the "General Form" controls - without showing this, I don't get the Title and Body fields. Is there a way I can either include the Title and Body fields without Taxonomy, OR hide just the Taxonomy field when the authenticated user role creates a node. I realise there's a CCK field which might be able to help me out here, but how do I tie that to the Taxonomy module? Any help gratefully received.

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• Get python tarfile to skip files without read permission

  - by chris

  I'm trying to write a function that backs up a directory with files of different permission to an archive on Windows XP. I'm using the tarfile module to tar the directory. Currently as soon as the program encounters a file that does not have read permissions, it stops giving the error: IOError: [Errno 13] Permission denied: 'path to file'. I would like it to instead just skip over the files it cannot read rather than end the tar operation. This is the code I am using now: def compressTar(): """Build and gzip the tar archive.""" folder = 'C:\\Documents and Settings' tar = tarfile.open ("C:\\WINDOWS\\Program\\archive.tar.gz", "w:gz") try: print "Attempting to build a backup archive" tar.add(folder) except: print "Permission denied attempting to create a backup archive" print "Building a limited archive conatining files with read permissions." for root, dirs, files in os.walk(folder): for f in files: tar.add(os.path.join(root, f)) for d in dirs: tar.add(os.path.join(root, d))

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• how to install SystemTap on Ubuntu

  - by jeevan thapa

  I am new to Ubuntu. I follow the instruction from http://sourceware.org/systemtap/wiki/SystemtapOnUbuntu that is necessary to install SystemTap on Ubuntu. I lost in Step 4. How can i run step 4: ? Setp 4: sudo apt-get install elfutils, for eu-readelf Then run this script as root, whenever you install additional debug symbols for file in `find /usr/lib/debug -name '*.ko' -print` do buildid=`eu-readelf -n $file| grep Build.ID: | awk '{print $3}'` dir=`echo $buildid | cut -c1-2` fn=`echo $buildid | cut -c3-` mkdir -p /usr/lib/debug/.build-id/$dir ln -s $file /usr/lib/debug/.build-id/$dir/$fn ln -s $file /usr/lib/debug/.build-id/$dir/${fn}.debug done This makes available the module probes available and is friendly to other debug symbol savvy apps like gdb and oprofile. This convention should make it's way into Ubuntu in the near future.

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• run-time error '429' activex component can't create object

  - by kojof

  I've created a simple application .Net Class that converts an excel spreadsheet into a a pdf file. I then get a Excel 2007 application to call this dll which works fine on my development machine. However when i deploy it on to a machine that has both the .net framework and excel 2007, i get this error - run-time error '429' activex component can't create object when i try and register the tlb or the dll , i get error below. the module c:\temp\test\Printlibarary.dll2 was loaded but the entry-point dllregisterserver was not found. Make sure that ...... is a valid dll or ocx file and then try again. Can someone please help me to resolve this.

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• jQuery Toggle Cookie Support

  - by hell0w0rld

  I'm trying to implement the jQuery Cookie plugin into my slide toggle script, but so far haven't been successful. Here's my code (without any cookie implementation): jQuery: $(document).ready(function() { $('a.toggle').click(function() { var id = $(this).attr('name'); $('#module' + id).slideToggle('fast'); $('a.toggle[name='+id+']').toggle(); return false; }); }); HTML: <a class="toggle" name="1" href="#">- Hide</a> <a class="toggle hidden" name="1" href="#">+ Show</a> <div id="module1"><p>Hello World</p></div> Anyone know if it's easy enough to implement the jQuery Cookie plugin into my existing code so it remembers the open/closed state? Thank you.

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• Command-line input causes SyntaxError

  - by coson

  Good Day, I have a simple Python question that I'm having brain freeze on. This code snippet works. But when I substitue "258 494-3929" with phoneNumber, I get the following error below: # Compare phone number phone_pattern = '^\d{3} ?\d{3}-\d{4}$' # phoneNumber = str(input("Please enter a phone number: ")) if re.search(phone_pattern, "258 494-3929"): print "Pattern matches" else: print "Pattern doesn't match!" ####################################################### Pattern does not match Please enter a phone number: 258 494-3929 Traceback (most recent call last): File "pattern_match.py", line 16, in <module> phoneNumber = str(input("Please enter a phone number: ")) File "<string>", line 1 258 494-3929 ^ SyntaxError: invalid syntax C:\Users\Developer\Documents\PythonDemo> By the way, I did import re and tried using rstrip in case of the \n What else could I be missing? Thanks in advance.

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• Add image gallery to node in Drupal

  - by vian

  I'm using Image module for Drupal 6 and the submodule of Image Gallery. Image gallery is identified by taxonomy term of certain vocabulary. What I need is to attach Image Gallery View supplied with Image Gallery to certain node. I am now trying to use Views Attach to do this. But how can I pass an argument of taxonomy term for gallery to the view? Also I added the taxonomy term for gallery to be defined for both images and my node type. Is it ok?

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• web2py error while using distinct in the queries

  - by Steve

  Hi, I am using web2py with GAE. While using some of the queries which has a distinct clause, GAE throws out an error.I have pasted the Traceback. Can someone please help me out with this. In FILE: /base/data/home/apps/panneersoda/1.341206242889687944/applications/init/controllers/default.py Traceback (most recent call last): File "/base/data/home/apps/panneersoda/1.341206242889687944/gluon/restricted.py", line 173, in restricted exec ccode in environment File "/base/data/home/apps/panneersoda/1.341206242889687944/applications/init/controllers/default.py:profileview", line 263, in <module> File "/base/data/home/apps/panneersoda/1.341206242889687944/gluon/globals.py", line 96, in <lambda> self._caller = lambda f: f() File "/base/data/home/apps/panneersoda/1.341206242889687944/applications/init/controllers/default.py:profileview", line 97, in profileview File "/base/data/home/apps/panneersoda/1.341206242889687944/gluon/contrib/gql.py", line 675, in select (items, tablename, fields) = self._select(*fields, **attributes) File "/base/data/home/apps/panneersoda/1.341206242889687944/gluon/contrib/gql.py", line 624, in _select raise SyntaxError, 'invalid select attribute: %s' % key SyntaxError: invalid select attribute: distinct Thanks

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• Getting error on inserting tuple values in postgreSQL table using python

  - by rahman.bd

  Hello, I want to keep last.fm's user recent music tracks list to postgresql database table using pylast interface.But when I tried to insert values to the table it shows errors.Code example: for i, artist in enumerate(recent_tracks): for key in sorted(artist): cur.execute(""" INSERT INTO u_recent_track(Playback_date,Time_stamp,Track) VALUES (%s,%s)""", (key, artist[key])) conn.commit() cur.execute("SELECT * FROM u_recent_track;") cur.fetchone() for row in cur: print ' '.join(row[1:]) cur.close() conn.close() Here "recent_tracks" tuple have the values for example: artist 0 - playback_date : 5 May 2010, 11:14 - timestamp : 1273058099 - track : Brian Eno - Web I want to store these value under u_recent_track(Tid,Playback_date,Time_stamp,Track).Can anybody have idea how to sort out this problem? when I tried to run, it shows error: Traceback (most recent call last): File "F:\JavaWorkspace\Test\src\recent_track_database.py", line 50, in <module> VALUES (%s,%s,%s)""", (key, artist[key])) IndexError: tuple index out of range Thanks in advanced!

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• Symfony 1.3 and forms: the password changes when i click on 'Save', why??

  - by user248959

  Hi, i have installed sfDoctrineGuardUser and have created this model that inherits sfGuardUser model: Usuario: inheritance: extends: sfGuardUser type: simple columns: nombre_apellidos: string(60) sexo: boolean fecha_nac: date provincia: string(60) localidad: string(255) email_address: string(255) avatar: string(255) avatar_mensajes: string(255) I have also created a module called 'miembros' based on that model. Well, I log normally through sfGuardAuth/signin, then i go to "miembros/edit/id/$id_of_the_member_i_used_to_log_in" and push 'Save' button. Then i logout. If i try to log in again, it says: "The username and/or password is invalid". Later, i have realized that when click 'Save' the value of the field 'password' changes (well its encrypted version). So that is the reason why i can not then log in. But, why the value of the password change when i click on 'Save' ??? Regards Javi

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• ImageChops.duplicate - python

  - by ariel

  Hi I am tring to use the function ImageChops.dulpicate from the PIL module and I get an error I don't understand: this is the code import PIL import Image import ImageChops import os PathDemo4a='C:/Documents and Settings/Ariel/My Documents/My Dropbox/lecture/demo4a' PathDemo4b='C:/Documents and Settings/Ariel/My Documents/My Dropbox/lecture/demo4b' PathDemo4c='C:/Documents and Settings/Ariel/My Documents/My Dropbox/lecture/demo4c' PathBlackBoard='C:/Documents and Settings/Ariel/My Documents/My Dropbox/lecture/BlackBoard.bmp' Slides=os.listdir(PathDemo4a) for slide in Slides: #BB=Image.open(PathBlackBoard) BB=ImageChops.duplicate(PathBlackBoard) #BB=BlackBoard and this is the error; Traceback (most recent call last): File "", line 1, in ImageChops.duplicate('c:/1.BMP') File "C:\Python26\lib\site-packages\PIL\ImageChops.py", line 57, in duplicate return image.copy() AttributeError: 'str' object has no attribute 'copy' any help would be much appriciated Ariel

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• Convert wife/husband/partner to a programmer.

  - by Stefan

  originally posted by Stefan: How many of you have had the thought of educate your partner and invite him/her to the beautiful world of programming? I once started to give my wife lessons twice a week, It was a competition between me and another programmer, we thought it would be nice to have our wives understand why we work as programmers and also have it as a hobby sitting all night long. Maybe we could get our wives to feel the power too? After a couple of months my wife didn't like the idea any more, it was too hard to understand she thought, same for my friends wife. So now we are thinking of some project that would be too fun for our wives to turn down just to get the spirit up again. It would be nice to hand over a project to my wife, "Can you debug this for me, please? There are some strange error on module xxx." :) Maybe I'm crazy, what do you think?

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• UrlRewriter.Net with URL with final dot

  - by devio

  I want to use UrlRewriter.Net as described in this blog by ScottGu. In the example below, page.aspx should display a page text stored in the database based on the title= URL parameter. After a couple of tweaks the only remaining issue seems to be that a final dot in the URL causes a 404 a sequence of two dots in the URL causes a 400 Windows 7, IIS 7 with Integrated AppPool, VS2008. Looking at the Failed Request Log, it seems that the UrlRewriter module is called after retrieving the request handler. Can these two issues be fixed, or is there a better replacement for UrlRewriter? (A related question only asks about the 404) Edit: This behavior can even be reproduced on SO, so maybe there is no work-around?

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• problems with unpickling a 80 megabyte file in python

  - by tipu

  I am using the pickle module to read and write large amounts of data to a file. After writing to the file a 80 megabyte pickled file, I load it in a SocketServer using class MyTCPHandler(SocketServer.BaseRequestHandler): def handle(self): print("in handle") words_file_handler = open('/home/tipu/Dropbox/dev/workspace/search/words.db', 'rb') words = pickle.load(words_file_handler) tweets = shelve.open('/home/tipu/Dropbox/dev/workspace/search/tweets.db', 'r'); results_per_page = 25 query_details = self.request.recv(1024).strip() query_details = eval(query_details) query = query_details["query"] page = int(query_details["page"]) - 1 return_ = [] booleanquery = BooleanQuery(MyTCPHandler.words) if query.find("(") > -1: result = booleanquery.processAdvancedQuery(query) else: result = booleanquery.processQuery(query) result = list(result) i = 0 for tweet_id in result and i < 25: #return_.append(MyTCPHandler.tweets[str(tweet_id)]) return_.append(tweet_id) i += 1 self.request.send(str(return_)) However the file never seems to load after the pickle.load line and it eventually halts the connection attempt. Is there anything I can do to speed this up?

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• method __getattr__ is not inherited from parent class

  - by ??????

  Trying to subclass mechanize.Browser class: from mechanize import Browser class LLManager(Browser, object): IS_AUTHORIZED = False def __init__(self, login = "", passw = "", *args, **kwargs): super(LLManager, self).__init__(*args, **kwargs) self.set_handle_robots(False) But when I make something like this: lm["Widget[LinksList]_link_1_title"] = anc then I get an error: Traceback (most recent call last): File "<pyshell#8>", line 1, in <module> lm["Widget[LinksList]_link_1_title"] = anc TypeError: 'LLManager' object does not support item assignment Browser class have overridden method __getattr__ as shown: def __getattr__(self, name): # pass through _form.HTMLForm methods and attributes form = self.__dict__.get("form") if form is None: raise AttributeError( "%s instance has no attribute %s (perhaps you forgot to " ".select_form()?)" % (self.__class__, name)) return getattr(form, name) Why my class or instance don't get this method as in parent class?

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• cross-user C# mutex

  - by Martin

  My app is forced to use a 3rd party module which will blue-screen Windows if two instances are started at the same time on the same machine. To work around the issue, my C# app has a mutex: static Mutex mutex = new Mutex(true, "{MyApp_b9d19f99-b83e-4755-9b11-d204dbd6d096}"); And I check if it's present - and if so I show an error message and close the app: bool IsAnotherInstanceRunning() { if (mutex.WaitOne(TimeSpan.Zero, true)) return (true); else return (false); } The problem is if two users can log in and open the application at the same time, and IsAnotherInstanceRunning() will return false. How do I get around this?

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• Preserve data in .net mvc

  - by Wei Ma

  I am implementing a search module with result page support paging. The example provided by NerdDinner passes pagenumber as a parameter for the Index action, and the action uses the pagenumber to perform a query each time the user hit a different page number. My problem is that my search take many more criteria such as price, material, model number etc. than just simple pagenumber. Therefore, I would like to preserve the criteria after users' first submission, so that I only have to pass the pagenumber back and forth. Using ViewData is not possible because ViewData get cleared once it is sent to the View. Is there any good way to preserve the criteria data as I wish?

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• Ruby Metaprogramming

  - by VP

  I'm trying to write a DSL that allows me to do Policy.name do author "Foo" reviewed_by "Bar" end The following code can almost process it: class Policy include Singleton def self.method_missing(name,&block) puts name puts "#{yield}" end def self.author(name) puts name end def self.reviewed_by(name) puts name end end Defining my method as class methods (self.method_name) i can access it using the following syntax: Policy.name do Policy.author "Foo" Policy.reviewed_by "Bar" end If i remove the "self" from the method names, and try to use my desired syntax, then i receive an error "Method not Found" in the Main so it could not find my function until the module Kernel. Its ok, i understand the error. But how can i fix it? How can i fix my class to make it work with my desired syntax that?

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