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  • Respond_with not working Rails 3

    - by MDM
    As no one can help me with my UJS ajax problem I am trying "respond_with", but I am getting this error: RuntimeError (In order to use respond_with, first you need to declare the formats your controller responds to in the class level) Yet I have declared it in my controller: class HomepagesController < ApplicationController respond_to :html, :xml, :js def index @homepages = Homepage.search(params[:search]) respond_with(@homepages) end Anyone has any ideas why.

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  • xampp mysql and rubby

    - by user115079
    I've installed ruby and xampp server. now i am trying to use xampp mysql for ruby application. i copied xampp mysql lib (libmysql) from C:\xampp\mysql\lib to C:\Ruby192\bin (as told on some post on this forum). now after that when i try to create a resource using following command, i get an error. command: rails generate scaffold ShortUrl url:string error: C:/Ruby192/lib/ruby/gems/1.9.1/gems/mysql2-0.3.11-x86-mingw32/lib/mysql2/mysql2.rb:2:in `require': Incorrect MySQL client library version! This gem was compiled for 6.0.0 but the client library is 5.5.16. (RuntimeError) i know that there is version issue b/w ruby mysql client and xampp mysal. now i need advice that what is better solution? upgraded xampp mysql or downgrade ruby mysql version. Personally i want to upgrade xampp mysql but i read on some post that xampp mysql can't be upgraded. please advise.

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  • no download and install progress, no error message (no text at all!) for sudo gem install merb

    - by Delirium tremens
    I'm using ruby 4.2, rubygems 1.3.5-1ubuntu2 and Ubuntu Lucid Lynx. I installed ruby and rubygems with Synaptic. Since "The gem command will output its progress while it sucks down and installs all the necessary gems for a full Merb install. " is written at http://wiki.merbivore.com/howto/installation/gems, when I type sudo gem update --system, I get: "ERROR: While executing gem ... (RuntimeError) gem update --system is disabled on Debian. RubyGems can be updated using the official Debian repositories by aptitude or apt-get." and rubygems has list, build and help commands, I'm wondering if in Ubuntu rubygems is used only for something other than downloading. If it isn't, why isn't rubygems showing any text for sudo gem install merb?

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  • unable to upgrade to 12.10 beta 2 from 12.04 [closed]

    - by user85959
    Possible Duplicate: There's an issue with an Alpha/Beta Release of Ubuntu, what should I do? authenticate 'quantal.tar.gz' against 'quantal.tar.gz.gpg' exception from gpg: GnuPG exited non-zero, with code 2 Debug information: gpg: Signature made Fri 28 Sep 2012 03:55:55 AM IST using DSA key ID 437D05B5 gpg: /tmp/update-manager-bpIptI/trustdb.gpg: trustdb created gpg: Good signature from "Ubuntu Archive Automatic Signing Key " gpg: WARNING: This key is not certified with a trusted signature! gpg: There is no indication that the signature belongs to the owner. Primary key fingerprint: 6302 39CC 130E 1A7F D81A 27B1 4097 6EAF 437D 05B5 gpg: Signature made Fri 28 Sep 2012 03:55:55 AM IST using RSA key ID C0B21F32 gpg: Can't check signature: public key not found Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/UpdateManager/UpdateManager.py", line 1110, in on_button_dist_upgrade_clicked fetcher.run() File "/usr/lib/python2.7/dist-packages/UpdateManager/Core/DistUpgradeFetcherCore.py", line 253, in run _("Authenticating the upgrade failed. There may be a problem " File "/usr/lib/python2.7/dist-packages/UpdateManager/DistUpgradeFetcher.py", line 41, in error return error(self.window_main, summary, message) File "/usr/lib/python2.7/dist-packages/UpdateManager/Core/utils.py", line 384, in error d.window.set_functions(Gdk.FUNC_MOVE) RuntimeError: unable to get the value gpg: /tmp/tmplqoLDu/trustdb.gpg: trustdb created

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  • Adaptive Threshold in OpenCV (Version 1 - the swig version)

    - by Neil Benn
    Hello I'm trying to get adaptive thresholding working in the python binding to opencv (the swig one - cannot get opencv 2.0 working as I am using a beagleboard as the cross compiling is not working yet). I have a greyscale image (ccg.jpg) and the following code import opencv from opencv import highgui img = highgui.cvLoadImage("ccg.png") img_bw = opencv.cvCreateImage(opencv.cvGetSize(img), opencv.IPL_DEPTH_8U, 1) opencv.cvAdaptiveThreshold(img, img_bw, 125, opencv.CV_ADAPTIVE_THRESH_MEAN_C, opencv.CV_THRESH_BINARY, 7, 10) When I run this I get the error: RuntimeError: openCV Error: Status=Formats of input arguments do not match function name=cvAdaptiveThreshold error messgae= file_name=cvadapthresh.cpp line=122 I've also tried having both the source and dest arguments both the same (greyscale) and I get the error 'Unsupported format or combination of formats'. Does anyone have any clues as to where I could be going wrong? Cheers, Neil

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  • Enthought Canopy - passing sys.argv from PySide Qt program

    - by user2541559
    I've recently been looking at the Enthought distro of iPython. Today I decided to see if I could get some Qt GUI progs running and was successful after making minor changes. Simple example: import sys from PySide import QtGui # was 'from PyQT4 import QtGui' # app = QtGui.QApplication(sys.argv) -- not needed win = QtGui.QWidget() win.resize(320, 240) win.setWindowTitle("Hello MIT 6X!") win.show() sys.exit() # was 'sys.exit(app.exec_())' But I would like to be able to pass sys.argv in some cases. Most example code I see is in the form of the commented out 'app = ' line above. If I include it, I get 'RuntimeError: A QApplication instance already exists.' Suggestions for passing arguments appreciated. Nick

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  • getting firewatir to run on mac osx: jssh problems

    - by z3cko
    I am trying to get firewatir to run on Mac OSX Leopard. I have Firefox 3.6rc2 installed but running the most simple script does not work: require 'rubygems' require 'firewatir' ff=FireWatir::Firefox.new ff.goto("http://mail.yahoo.com") i am getting the following error /usr/local/lib/ruby/gems/1.8/gems/firewatir-1.6.5/lib/firewatir/firefox.rb:237:in `set_defaults': Unable to connect to machine : 127.0.0.1 on port 9997. Make sure that JSSh is properly installed and Firefox is running with '-jssh' option (Watir::Exception::UnableToStartJSShException) from /usr/local/lib/ruby/gems/1.8/gems/firewatir-1.6.5/lib/firewatir/firefox.rb:131:in `initialize' from ./watir-test.rb:12:in `new' from ./watir-test.rb:12 even when I am trying to start Firefox with the -jssh option, I get an error (although another one) /Applications/Firefox.app/Contents/MacOS/firefox-bin -jssh the error output in that case: /usr/local/lib/ruby/gems/1.8/gems/firewatir-1.6.5/lib/firewatir/firefox.rb:125:in `initialize': Firefox is running without -jssh (RuntimeError) is there any tutorial or hnt to get firewatir actually running on Mac OSX?

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  • Remove certain keys from a dictionary in python

    - by Margaret
    I'm trying to construct a dictionary that contains a series of sets: {Field1:{Value1, Value2, Value3}, Field2{Value4}} The trouble is, I then wish to delete any fields from the dictionary that only have one value in the set. I have been writing code like this: for field in FieldSet: if len(FieldSet[field]) == 1: del(FieldSet[field]) But receive the error "RuntimeError: dictionary changed size during execution". (Not surprising, since that's what I'm doing.) It's not the be-all and end-all if I have to knock together some sort of workaround, but is it possible to do this?

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  • Cucumber - How configure it to use "--format pretty" as default?

    - by Gabriel L. Oliveira
    I'm starting learning rails, and having some troubles on configure cucumber to run my bdd tests. What I want is run cucumber features and this translate to cucumber features --format pretty I tried to do this editing the config/cucumber.yml file (on a rails project). Edited the line: default: <%= std_opts % features resulting on: default: <%= std_opts % --format pretty features But it make some erros happen: Using the default profile... All but one formatter must use --out, only one can print to each stream (or STDOUT) (RuntimeError) What I can do to make this option "--format pretty" default? Also, is there any other good option to put as default to make result more clear? Thank you.

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  • Error while sending message using xmpp4r_facebook

    - by santu
    I am following the instructions presented in http://dalibornasevic.com/posts/35-how-to-send-private-messages-with-facebook-api to send message to my friend and currently testing from command line. Following is the code I am using require 'xmpp4r_facebook' id = '<my facebook id>@chat.facebook.com' to = '<my friend facebook id>@chat.facebook.com' body = "hello, Im not spam!" subject = 'message from ruby' message = Jabber::Message.new to, body message.subject = subject client = Jabber::Client.new Jabber::JID.new(id) client.connect client.auth_sasl(Jabber::SASL::XFacebookPlatform.new(client, '<App ID>', '<access token got from https://developers.facebook.com/tools/explorer>', 'App Secret'), nil) I get the error RuntimeError: not-authorized from /Users/apple/.rvm/gems/ruby-1.9.3-p194/gems/xmpp4r_facebook-0.1.1/lib/xmpp4r_facebook.rb:103:in `auth' from /Users/apple/.rvm/gems/ruby-1.9.3-p194/gems/xmpp4r-0.5/lib/xmpp4r/client.rb:171:in `auth_sasl' from (irb):12 from /Users/apple/.rvm/rubies/ruby-1.9.3-p194/bin/irb:16:in `<main>'

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  • Stable URL of acts_as_taggable plugin in Ruby on Rails

    - by Rakesh Gupta
    Hi, In one of my applications on Ruby on Rails, I am using acts_as_taggable plugin. Coding was doing fine and suddenly it started giving following error. RuntimeError (acts_as_taggable_on_steroids has been moved to github: http://github.com/jviney/acts_as_taggable_on_steroids): app/models/post.rb:2 app/controllers/post_controller.rb:324:in post_scoper' app/controllers/post_controller.rb:221:indefault' C:\MyApp\script\server:3 -e:2:in `load' -e:2 Rendered rescues/_trace (94.0ms) Rendered rescues/_request_and_response (15.0ms) Rendering rescues/layout (internal_server_error) When trying installing the plugin from above URL, it says plugin has been moved. Does anyone have idea, what is the stable URL of acts_as_taggable plugin? Thanks in advance

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  • Proper structure for many test cases in Python with unittest

    - by mellort
    I am looking into the unittest package, and I'm not sure of the proper way to structure my test cases when writing a lot of them for the same method. Say I have a fact function which calculates the factorial of a number; would this testing file be OK? import unittest class functions_tester(unittest.TestCase): def test_fact_1(self): self.assertEqual(1, fact(1)) def test_fact_2(self): self.assertEqual(2, fact(2)) def test_fact_3(self): self.assertEqual(6, fact(3)) def test_fact_4(self): self.assertEqual(24, fact(4)) def test_fact_5(self): self.assertFalse(1==fact(5)) def test_fact_6(self): self.assertRaises(RuntimeError, fact, -1) #fact(-1) if __name__ == "__main__": unittest.main() It seems sloppy to have so many test methods for one method. I'd like to just have one testing method and put a ton of basic test cases (ie 4! ==24, 3!==6, 5!==120, and so on), but unittest doesn't let you do that. What is the best way to structure a testing file in this scenario? Thanks in advance for the help.

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  • What's the deal with rubygems on Debian? It's different and strange.

    - by JSW
    I've noticed at least the following oddities around rubygems on Debian (5.0 lenny in my case): Packages go into a different installation location: /var/lib/gems vs /usr/lib/ruby/gems The debian package is rubygems 1.3.6, and updating rubygems to the latest version (1.3.7) doesn't work: $ sudo gem update --system ERROR: While executing gem ... (RuntimeError) gem update --system is disabled on Debian. RubyGems can be updated using the official Debian repositories by aptitude or apt-get. Not all gems appear to work like they do on other systems. For instance, when installing Phusion Passenger, it did not detect the "rack" gem even though it was definitely installed. Manually installing rubygems using the source tarball and reinstalling all my gems (to /usr/lib/ruby/gems) made my problems go away. What's the deal? Why is debian's package different?

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  • Python: Pickling highly-recursive objects without using `setrecursionlimit`

    - by cool-RR
    I've been getting RuntimeError: maximum recursion depth exceeded when trying to pickle a highly-recursive tree object. Much like this asker here. He solved his problem by setting the recursion limit higher with sys.setrecursionlimit. But I don't want to do that: I think that's more of a workaround than a solution. Because I want to be able to pickle my trees even if they have 10,000 nodes in them. (It currently fails at around 200.) (Also, every platform's true recursion limit is different, and I would really like to avoid opening this can of worms.) Is there any way to solve this at the fundamental level? If only the pickle module would pickle using a loop instead of recursion, I wouldn't have had this problem. Maybe someone has an idea how I can cause something like this to happen, without rewriting the pickle module? Any other idea how I can solve this problem will be appreciated.

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  • QtWebkit and hasPendingEvents() always True

    - by Deorf
    Hello. I use project webkit2png (slightly appended) to take screenshots in Linux. On the server running the latest version QtWebkit and Python 2.6 On some sites (eg 118114.cn) problem and the application hangs forever. Debug shows that the problem in this code snippet: while self.__loading:    if timeout 0 and time.time() = cancelAt:       raise RuntimeError("Request timed out on %s" % url)    while QApplication.hasPendingEvents():       QCoreApplication.processEvents() Full version of the source code is available here (lines 270-275) Somehow Loading-event hangs and hasPendingEvents can not be False. Most of the screenshots are created normally, but sometimes due to some URL drops my app: ( Does anyone know how to solve this problem and why the event hangs?

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  • Python Terminated Thread Cannot Restart

    - by Mel Kaye
    Hello, I have a thread that gets executed when some action occurs. Given the logic of the program, the thread cannot possibly be started while another instance of it is still running. Yet when I call it a second time, I get a "RuntimeError: thread already started" error. I added a check to see if it is actually alive using the Thread.is_alive() function, and it is actually dead. What am I doing wrong? I can provide more details as are needed.

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  • mercurial hgwebdir error with basicauth in apache2

    - by Dio
    Hello, I'm having kind of a strange error that I'm trying to track down. I was trying to setup mercurial on my home server this weekend. I seem to have it running up to the point where I'm trying to get repositories published correctly. I'm running Ubuntu 10.04 LTS Mercurial Distributed SCM (version 1.4.3) I followed the hgwebdir guide: http://mercurial.selenic.com/wiki/HgWebDirStepByStep and everything seems to work great, I can pull and push my local repositories. Then I tried to add basic auth changing ScriptAliasMatch ^/hg(.*) /var/hg/hgwebdir.cgi$1 <Directory "/var/hg"> Options ExecCGI FollowSymLinks AllowOverride None </Directory> to ScriptAliasMatch ^/hg(.*) /var/hg/hgwebdir.cgi$1 <Directory "/var/hg"> Options ExecCGI FollowSymLinks AllowOverride None AuthType Basic AuthName hgwebdir AuthUserFile /usr/local/etc/httpd/users Require valid-user </Directory> This works exactly as I'd expect it to when I navigate to the directory via my web browser, but when I hg push get a long section repeating of File "/usr/lib/python2.6/urllib2.py", line 369, in _call_chain result = func(*args) File "/usr/lib/python2.6/urllib2.py", line 855, in http_error_401 url, req, headers) File "/usr/lib/python2.6/urllib2.py", line 833, in http_error_auth_reqed return self.retry_http_basic_auth(host, req, realm) File "/usr/lib/python2.6/urllib2.py", line 843, in retry_http_basic_auth return self.parent.open(req, timeout=req.timeout) followed by File "/usr/lib/pymodules/python2.6/mercurial/keepalive.py", line 249, in do_open self._start_transaction(h, req) File "/usr/lib/pymodules/python2.6/mercurial/url.py", line 419, in _start_transaction return keepalive.HTTPHandler._start_transaction(self, h, req) File "/usr/lib/pymodules/python2.6/mercurial/keepalive.py", line 342, in _start_transaction h.endheaders() File "/usr/lib/python2.6/httplib.py", line 904, in endheaders self._send_output() File "/usr/lib/python2.6/httplib.py", line 776, in _send_output self.send(msg) File "/usr/lib/pymodules/python2.6/mercurial/url.py", line 247, in _sendfile connection.send(self, data) File "/usr/lib/pymodules/python2.6/mercurial/keepalive.py", line 519, in safesend self.connect() File "/usr/lib/pymodules/python2.6/mercurial/url.py", line 273, in connect keepalive.HTTPConnection.connect(self) RuntimeError: maximum recursion depth exceeded while calling a Python object I'm a bit at a loss on this one. I'm really not sure why adding the authorization seems to work fine via my web browser but throw these errors from hg. Any help would be greatly appreciated.

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  • Python recursive function error: "maximum recursion depth exceeded"

    - by user283169
    I solved Problem 10 of Project Euler with the following code, which works through brute force: def isPrime(n): for x in range(2, int(n**0.5)+1): if n % x == 0: return False return True def primeList(n): primes = [] for i in range(2,n): if isPrime(i): primes.append(i) return primes def sumPrimes(primelist): prime_sum = sum(primelist) return prime_sum print (sumPrimes(primeList(2000000))) The three functions work as follows: isPrime checks whether a number is a prime; primeList returns a list containing a set of prime numbers for a certain range with limit 'n', and; sumPrimes sums up the values of all numbers in a list. (This last function isn't needed, but I liked the clarity of it, especially for a beginner like me.) I then wrote a new function, primeListRec, which does exactly the same thing as primeList, to help me better understand recursion: def primeListRec(i, n): primes = [] #print i if (i != n): primes.extend(primeListRec(i+1,n)) if (isPrime(i)): primes.append(i) return primes return primes The above recursive function worked, but only for very small values, like '500'. The function caused my program to crash when I put in '1000'. And when I put in a value like '2000', Python gave me this: RuntimeError: maximum recursion depth exceeded. What did I do wrong with my recursive function? Or is there some specific way to avoid a recursion limit?

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  • [Gray Hat Python] Simple debugger, want work ??

    - by Rami Jarrar
    hi, i'm reading the Gray Hat Python,, i reach for this :: class debugger(): def __init__(self): self.h_process = None self.pid = None self.debugger_active = False def load(self,path_to_exe): creation_flags = DEBUG_PROCESS startupinfo = STARTUPINFO() process_information = PROCESS_INFORMATION() startupinfo.dwFlags = 0x1 startupinfo.wShowWindows = 0x0 startupinfo.cb = sizeof(startupinfo) if kernel32.CreateProcessA(path_to_exe, None, None, None, None, creation_flags, None, None, byref(startupinfo), byref(process_information)): print "[*] We have successfully launched the process!" print "[*] PID: %d"%(process_information.dwProcessId) self.h_process = self.open_process(process_information.dwProcessId) else: print "[*] Error: 0x%08x."%(kernel32.GetLastError()) def open_process(self,pid): h_process = self.open_process(pid) if kernel32.DebugActiveProcess(pid): self.debugger_active = True self.pid = int(pid) self.run() else: print "[*] Unable to attach to the process." def run(self): while self.debugger_active == True: self.get_debug_event() def get_debug_event(self): debug_event = DEBUG_EVENT() continue_status = DBG_CONTINUE if kernel32.WaitForDebugEvent(byref(debug_event), INFINITE): raw_input("Press a Key to continue...") self.debugger_active = False kernel32.ContinueDebugEvent( \ debug_event.dwProcessId, \ debug_event.dwThreadId, \ continue_status ) def detach(self): if kernel32.DebugActiveProcessStop(self.pid): print "[*] Finished debugging. Exiting..." return True else: print "There was an error" return False when run my_test.py :: import my_dbg debugger = my_dbg.debugger() pid = raw_input('Enter the PID of the process to attach to: ') debugger.open_process(int(pid)) debugger.detach() i get this error :: Traceback (most recent call last): File "C:/Python26/dbgpy/my_test.py", line 5, in <module> debugger.attach(int(pid)) File "C:/Python26/dbgpy\my_dbg.py", line 37, in attach h_process = self.attach(pid) ........... ........... ........... File "C:/Python26/dbgpy\my_dbg.py", line 37, in attach h_process = self.attach(pid) File "C:/Python26/dbgpy\my_dbg.py", line 37, in attach h_process = self.attach(pid) RuntimeError: maximum recursion depth exceeded its because the loop and something else, but what it is ?? I'm running on Windows using Python2.6.4.. :) Update:: i remove h_process = self.open_process(pid), but i get the same error for the next instruction if kernel32.DebugActiveProcess(pid) , so the problem i think in the loop while,, but what it is ???

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  • Remove ActiveRecord in Rails 3 (beta)

    - by Splash
    Now that Rails 3 beta is out, I thought I'd have a look at rewriting an app I have just started work on in Rails 3 beta, both to get a feel for it and get a bit of a head-start. The app uses MongoDB and MongoMapper for all of its models nad therefore has no need for ActiveRecord. In the previous version, I am unloading activerecord in the following way: config.frameworks -= [ :active_record ] # inside environment.rb In the latest version this does not work - it just throws an error: /Library/Ruby/Gems/1.8/gems/railties-3.0.0.beta/lib/rails/configuration.rb:126:in `frameworks': config.frameworks in no longer supported. See the generated config/boot.rb for steps on how to limit the frameworks that will be loaded (RuntimeError) from *snip* Of course, I have looked at the boot.rb as it suggested, but as far as I can see, there is no clue here as to how I might go about unloading AR. The reason I need to do this is because not only is it silly to be loading something I don't want, but it is complaining about its inability to make a DB connection even when I try to run a generator for a controller. This is because I've wiped database.yml and replaced it with connection details for MongoDB in order to use this gist for using database.yml for MongoDB connection details. Not sure why it needs to be able to initiate a DB connection at all just to generate a controller anyway.... Is anyone aware of the correct Rails 3 way of doing this?

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  • Class Decorators, Inheritence, super(), and maximum recursion

    - by jamstooks
    I'm trying to figure out how to use decorators on subclasses that use super(). Since my class decorator creates another subclass a decorated class seems to prevent the use of super() when it changes the className passed to super(className, self). Below is an example: def class_decorator(cls): class _DecoratedClass(cls): def __init__(self): return super(_DecoratedClass, self).__init__() return _DecoratedClass class BaseClass(object): def __init__(self): print "class: %s" % self.__class__.__name__ def print_class(self): print "class: %s" % self.__class__.__name__ bc = BaseClass().print_class() class SubClass(BaseClass): def print_class(self): super(SubClass, self).print_class() sc = SubClass().print_class() @class_decorator class SubClassAgain(BaseClass): def print_class(self): super(SubClassAgain, self).print_class() sca = SubClassAgain() # sca.print_class() # Uncomment for maximum recursion The output should be: class: BaseClass class: BaseClass class: SubClass class: SubClass class: _DecoratedClass Traceback (most recent call last): File "class_decorator_super.py", line 34, in <module> sca.print_class() File "class_decorator_super.py", line 31, in print_class super(SubClassAgain, self).print_class() ... ... RuntimeError: maximum recursion depth exceeded while calling a Python object Does anyone know of a way to not break a subclass that uses super() when using a decorator? Ideally I'd like to reuse a class from time to time and simply decorate it w/out breaking it.

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  • How to access attributes using Nokogiri

    - by Liz
    I have a simple task of accessing the values of some attributes. Below is a simple script that uses Nokogiri::XML::Builder to create a simple xml doc. require 'nokogiri' builder = Nokogiri::XML::Builder.new(:encoding => 'UTF-8') do |xml| xml.Placement(:messageId => "392847-039820-938777", :system => "MOD", :version => "2.0") { xml.objects { xml.object(:myattribute => "99", :anotherattrib => "333") xml.nextobject_ '9387toot' xml.Entertainment "Last Man Standing" } } end puts builder.to_xml puts builder.root.attributes["messageId"] The results are below: <?xml version="1.0" encoding="UTF-8"?> <Placement messageId="392847-039820-938777" version="2.0" system="MOD"> <objects> <object anotherattrib="333" myattribute="99"/> <nextobject>9387toot</nextobject> <Entertainment>Last Man Standing</Entertainment> </objects> </Placement> C:/Ruby/lib/ruby/gems/1.8/gems/nokogiri-1.4.2-x86-mingw32/lib/nokogiri/xml/document.rb:178:in `add_child': Document already has a root node (RuntimeError) from C:/Ruby/lib/ruby/gems/1.8/gems/nokogiri-1.4.2-x86-mingw32/lib/nokogiri/xml/node.rb:455:in `parent=' from C:/Ruby/lib/ruby/gems/1.8/gems/nokogiri-1.4.2-x86-mingw32/lib/nokogiri/xml/builder.rb:358:in `insert' from C:/Ruby/lib/ruby/gems/1.8/gems/nokogiri-1.4.2-x86-mingw32/lib/nokogiri/xml/builder.rb:350:in `method_missing' from C:/Documents and Settings/etrojan/workspace/Lads/tryXPATH2.rb:15 The xml that is generated looks fine. However, my attempts to access attributes cause an error to be generated, "Document already has a root node". I don't understand why a puts statement would cause this error. Any suggestions would be greatly appreciated.

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  • Multiple database connection in Rails

    - by Sanal
    I'm using active_delegate for multiple connection in Rails. Here I'm using mysql as master_database for some models,and postgresql for some other models. Problem is that when I try to access the mysql models, I'm getting the error below! Stack trace shows that, it is still using the postgresql adapter to access my mysql models! RuntimeError: ERROR C42P01 Mrelation "categories" does not exist P15 F.\src\backend\parser\parse_relation.c L886 RparserOpenTable: SELECT * FROM "categories" STACKTRACE =========== d:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract_adapter.rb:212:in `log' d:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/postgresql_adapter.rb:507:in `execute' d:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/postgresql_adapter.rb:985:in `select_raw' d:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/postgresql_adapter.rb:972:in `select' d:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/database_statements.rb:7:in `select_all_without_query_cache' d:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/query_cache.rb:60:in `select_all' d:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/query_cache.rb:81:in `cache_sql' d:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/query_cache.rb:60:in `select_all' d:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:661:in `find_by_sql' d:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:1553:in `find_every' d:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:615:in `find' D:/ROR/Aptana/dedomenon/app/models/category.rb:50:in `get_all_with_exclusive_scope' D:/ROR/Aptana/dedomenon/app/models/category.rb:50:in `get_all_with_exclusive_scope' D:/ROR/Aptana/dedomenon/app/controllers/categories_controller.rb:48:in `index' here is my database.yml file postgre: &postgre adapter: postgresql database: codex host: localhost username: postgres password: root port: 5432 mysql: &mysql adapter: mysql database: project host: localhost username: root password: root port: 3306 development: <<: *postgre test: <<: *postgre production: <<: *postgre master_database: <<: *mysql and my master_databse model is like this class Category < ActiveRecord::Base delegates_connection_to :master_database, :on => [:create, :save, :destroy] end Anyone has any solution??

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  • Python OOP and lists

    - by Mikk
    Hi, I'm new to Python and it's OOP stuff and can't get it to work. Here's my code: class Tree: root = None; data = []; def __init__(self, equation): self.root = equation; def appendLeft(self, data): self.data.insert(0, data); def appendRight(self, data): self.data.append(data); def calculateLeft(self): result = []; for item in (self.getLeft()): if (type(item) == type(self)): data = item.calculateLeft(); else: data = item; result.append(item); return result; def getLeft(self): return self.data; def getRight(self): data = self.data; data.reverse(); return data; tree2 = Tree("*"); tree2.appendRight(44); tree2.appendLeft(20); tree = Tree("+"); tree.appendRight(4); tree.appendLeft(10); tree.appendLeft(tree2); print(tree.calculateLeft()); It looks like tree2 and tree are sharing list "data"? At the moment I'd like it to output something like [[20,44], 10, 4], but when I tree.appendLeft(tree2) I get RuntimeError: maximum recursion depth exceeded, and when i even won't appendLeft(tree2) it outputs [10, 20, 44, 4] (!!!). What am I missing here? I'm using Portable Python 3.0.1. Thank you

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  • Cucumber-rails on jruby installs gem into my apps root directory with bundler

    - by brad
    Just installed cucumber 0.7.2 and cucumber-rails 0.3.1 with jruby-1.4.0 on OSX. When I run a bundle install, it places a cucumber-rails directory in my main app with all of the gem code/dependencies. First off, this is definitely not what I want and I'm not sure why this happens for cucumber-rails only. Second, if I delete this folder and just manually install cucumber-rails, when I run script/generate feature blah I get /Users/bradrobertson/.rvm/rubies/jruby-1.4.0/lib/ruby/site_ruby/1.8/rubygems/source_index.rb:344:in `refresh!': source index not created from disk (RuntimeError) from /Users/bradrobertson/.rvm/gems/jruby-1.4.0/gems/rails-2.3.5/lib/rails/vendor_gem_source_index.rb:34:in `refresh!' from /Users/bradrobertson/.rvm/gems/jruby-1.4.0/gems/rails-2.3.5/lib/rails/vendor_gem_source_index.rb:29:in `initialize' from /Users/bradrobertson/.rvm/gems/jruby-1.4.0/gems/rails-2.3.5/lib/rails/gem_dependency.rb:21:in `new' from /Users/bradrobertson/.rvm/gems/jruby-1.4.0/gems/rails-2.3.5/lib/rails/gem_dependency.rb:21:in `add_frozen_gem_path' from /Users/bradrobertson/.rvm/gems/jruby-1.4.0/gems/rails-2.3.5/lib/initializer.rb:298:in `add_gem_load_paths' from /Users/bradrobertson/.rvm/gems/jruby-1.4.0/gems/rails-2.3.5/lib/initializer.rb:132:in `process' from /Users/bradrobertson/.rvm/gems/jruby-1.4.0/gems/rails-2.3.5/lib/initializer.rb:113:in `run' from /Users/bradrobertson/Repos/app/source/trunk/config/environment.rb:13 from /Users/bradrobertson/Repos/app/source/trunk/config/environment.rb:1:in `require' from /Users/bradrobertson/.rvm/gems/jruby-1.4.0/gems/rails-2.3.5/lib/commands/generate.rb:1 from /Users/bradrobertson/.rvm/gems/jruby-1.4.0/gems/rails-2.3.5/lib/commands/generate.rb:3:in `require' from script/generate:3 Similarly running rake cucumber I get rake aborted! source index not created from disk So something obviously doesn't work. If I add that cucumber-rails directory back in, then my rake cucumber actually runs. Can someone tell me why it would need to install the gem right in my rails app? I've never seen this before. setup jruby-1.4.0 cucumber-0.7.2 cucumber-rails 0.3.1 bundler 0.9.23 webrat 0.7.1

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