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  • Send instance method to module

    - by Matchu
    Given the following module, module Foo def bar :baz end end def send_to_foo(method) # ...? end send_to_foo(:bar) # => :baz What code should go in send_to_foo to make the last line work as expected? (send_to_foo is obviously not how I would implement this; it just makes clearer what I'm looking for.) I expected Foo.send(:bar) to work at first, but it makes sense that it doesn't. It would if the method were defined as def self.bar, but that's no fun.

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  • CSS Trouble, Why does it move itself?

    - by Patrick
    Hello! I am stuck on the CSS part, am helping a friend to implement one thing on her webpage. Its a dropdown menu and i got everything working the way i want it to. My problem is that it moves itself to the beginning of the row? http://gazet.se/TestPages/Test.aspx Its just below the logo and as you can see, its on the correct line but not in the correct position (should be between the purple "Nyhetsbrev" and the black "Experthörnan"-images, but it ends up on the beginning of the row instead? Any ideas?

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  • How UIWindow#addSubview can make memory leak?

    - by Jakub
    Hello, I started to learn using Instrument, but I cannot figure it out. After I start my application, the UI shows up, I do nothing and after few seconds I can see memory leak detected: When I have a look at the second leak I can see the following stack: When I double click on the cell related to my code I can see that it is pointing to the following line of code: [window addSubview:newPostUIViewController.view]; from the method: - (void)applicationDidFinishLaunching:(UIApplication *)application { //creating view controller newPostUIViewController = [[NewPostUIViewController alloc] initWithNibName:@"NewPostView" bundle:nil]; newPostUIViewController.title = @"Post it!"; [window addSubview:newPostUIViewController.view]; // Override point for customization after application launch [window makeKeyAndVisible]; } I wonder, how this can be a reason of a leak? I release newPostUIViewController in the dealloc method of PostItAppDelegate class. Any ideas how this could be explained?

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  • Null object that is not null

    - by Guillaume
    Hello, I use 2 threads to act like a produce/consumer using double queue (http://www.codeproject.com/KB/threads/DoubleQueue.aspx). Sometimes in my 2nd thread, I get an object that is NULL but it should not be as I filled it in the first thread. I tried this: if(myObject.Data == null) { Console.WriteLine("Null Object") // <-- Breakpoint here } When I my break point hits, I can watch myObject.Data and indeed it's NULL, but when I hit F10 and then go to the next line (which is } ) myObject.Data is not NULL. I also added a lock on myObject before if .... to be sure that no one whould use this object. How is that possible and what can I do ?

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  • [C#] how do I get the height of a rich text content after word wrap?

    - by Led
    Question A. Given 1. A string in rich text format that may have paragraph, tabs, space, line break, indentation, (or even image?) 2. A width for the word wrapping rich text control/editor How do I know the height of the content after it have performed all the word wrapping? Is there something like int MeasureRichTextHeightAfterWordWrap(string aRichTextContent, int aWidth)? Otherwise how does those rich text control know how much to autosize? Do I have to actually place the content on a dummy rich text control and get its height afterwards? Question B. Similar to question A but in plain text onto a plain text memo/control/editor. And manually draw string with manually calculated indentations, breaks, word wrappings. Is it easier or harder?

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  • ffmpeg problem in ubuntu (libavcodec.so)

    - by lyuba
    I run Ubuntu and try to use the ffmpeg wrapper in Java from here: http://code.google.com/p/javacv/ It seems to work fine on other systems, but in Ubuntu the project crashes with the following mistake: Exception in thread "main" java.lang.UnsatisfiedLinkError: Error looking up function 'avcodec_decode_video2': /usr/lib/i686/cmov/libavcodec.so: undefined symbol: avcodec_decode_video2 ffmpeg is working great from the command line, though. JavaCV author recommended me to check this link: http://linux-tipps.blogspot.com/2009/05/pretending-package-is-installed-by.html Probably I'm doing something wrong, but it cannot reinstall libavcodec51 like this. So the questions are: 1. Is those solution above a good one so I should bring it to success somehow? 2. What are the other ways to solve the problem? Thank you for your suggestions in advance!

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  • Asp.Net 1 -> Asp.Net 2 upgrade - Machine.Config - unrecognized parameter

    - by Chris
    Hi All, I am working on upgrading a web app to asp.net 2 from 1. VS 2008 did its conversion things, and everything is building successfully and has been converted to a web application via the appropriate menu item in VS 2008. On launching the site using the Asp.net development server I am receiving a configuration error on the appsettings line in the machine config of Unrecognized attribute 'restartOnExternalChanges'. The app targets asp.net 2 in the projects properties in VS, and the error page indicates similar : Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053 The error message seems to indicate I am trying to run this in an asp.net 1 environment, but surely that isnt the case, and if so how do I rectify this. Any help would be appreciated Thanks,

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  • JavaScript-like Object in Python standard library?

    - by David Wolever
    Quite often, I find myself wanting a simple, "dump" object in Python which behaves like a JavaScript object (ie, its members can be accessed either with .member or with ['member']). Usually I'll just stick this at the top of the .py: class DumbObject(dict): def __getattr__(self, attr): return self[attr] def __stattr__(self, attr, value): self[attr] = value But that's kind of lame, and there is at least one bug with that implementation (although I can't remember what it is). So, is there something similar in the standard library? And, for the record, simply instanciating object doesn't work: obj = object() obj.airspeed = 42 Traceback (most recent call last): File "", line 1, in AttributeError: 'object' object has no attribute 'airspeed' Thanks, David

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  • Pear SOAP and XAMPP on Ubuntu

    - by Vincent
    All, I have installed xampp for linux on ubuntu 9.10. The installation directory is /opt/lampp. The xampp website says PEAR comes with the installation.. I am relatively new to PEAR and want to know the answers for following: Is PEAR installed with xampp or need to be installed separately using synaptic package manager? I browse to /opt/lampp/bin directory and see "pear" there, but when i type it in the command line, it says "The program 'pear' is currently not installed. You can install it by typing: sudo apt-get install php-pear pear: command not found " I want to use PEAR:SOAP package in my PHP code. How to use that? Do I need to set any paths to the pear in my php.ini? Thanks

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  • What is the correct syntax for using HTML builder with mixed content in Groovy 1.7?

    - by stian
    On the Groovy example page there is an example of how to use Groovy HTML builder with mixed content: p [ "This is some", b"mixed", "text. For more see the", ahref:'http://groovy.codehaus.org' ["Groovy"], "project" ] This is however not working for me, I get an error message like: expecting ']', found 'mixed' @ line 33, column 23. b"mixed", ^ 1 error The Groovy example page states that: [Note: the syntax in some of these examples is slightly out-dated. See chapter 8 of GINA in the mean-time until these examples are updated.] My suspicion therefore is that the syntax of the HTML builder has changed, however I don't have the book so I cannot check and I cannot seem to find any relevant example of this working online. Does anyone know how the syntax is supposed to be in Groovy 1.7 and have got this working?

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  • Is it possible to a db constraint in for this rule?

    - by Pure.Krome
    Hi folks, I wish to make sure that my data has a constraint the following check (constraint?) in place This table can only have one BorderColour per hub/category. (eg. #FFAABB) But it can have multiple nulls. (all the other rows are nulls, for this field) Table Schema ArticleId INT PRIMARY KEY NOT NULL HubId TINYINT NOT NULL CategoryId INT NOT NULL Title NVARCHAR(100) NOT NULL Content NVARCHAR(MAX) NOT NULL BorderColour VARCHAR(7) -- Can be nullable. I'm gussing I would have to make a check constraint? But i'm not sure how, etc. sample data. 1, 1, 1, 'test', 'blah...', '#FFAACC' 1, 1, 1, 'test2', 'sfsd', NULL 1, 1, 2, 'Test3', 'sdfsd dsf s', NULL 1, 1, 2, 'Test4', 'sfsdsss', '#AABBCC' now .. if i add the following line, i should get some sql error.... INSERT INTO tblArticle VALUES (1, 2, 'aaa', 'bbb', '#ABABAB') any ideas?

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  • USB enumeration failure in ColdFire MCF52259

    - by Quicksilver
    Anybody with programming experience on the ColdFire line, please help! I'm using the CMX USB-Lite stack with the ColdFire MCF52259. For some reason, USB enumeration fails at the very first step, as soon as I enable the DP pull-up resistor. This is what I'm doing :- INT_ENB, OTG_INT_EN, ERR_ENB are set to 0x0 INT_STAT, OTG_INT_STAT and ERR_STAT are set to 0xff (This should clear all interrupts) In the Interrupt Status Register, bits 0 (Mask All) and 53 are made 0, all others are 1. TOK_DNE, USB_RST and STALL interrupts are enabled in INT_ENB. BDT base address is set. MCF_USB_CTL holds 0x1 PROBLEM: After the host issues the first reset (at which point I enable Control endpoint 0), instead of the expected Get Descriptor request I'm getting an endless series of resets. At least, that's what it looks like, because the TOK_DNE interrupt never triggers. Is there anything I'm doing wrong?

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  • Mac OS X, Can't start/stop MySQL via System Preferences

    - by Steve Kuo
    I downloaded and installed MySQL 5.1.47 for OS X 10.6 using the DMG archive: mysql-5.1.47-osx10.6-x86_64.dmg I also installed MySQL.prefPane and MySQLStartupItem.pkg. MySQL.prefPane is a Preference Pane. The problem is, whenever I attempt to start/stop MySQL from the Preference Pane, System Preferences just hangs. It runs at about 50% CPU forever, eventually I have for force quit System Preferences. The same thing happens if I toggle "Automatically Start MySQL Server on Startup". Basically the MySQL Preference Pane is not functional. Note that I have no problem starting MySQL from the command line: sudo /usr/local/mysql/bin/mysqld_safe I have tried reinstalling MySQL and the Preference Pane. I'm using the standard installation location, nothing out of the ordinary. Every time the MySQL Preference Pane just hangs. I'm doing this on a Macbook Pro (Intel) running OS X 10.6.3. There are no old versions of MySQL on this machine.

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  • Error building java project

    - by Leandro
    I have tryied to build my project in netbeans 6.8/ windows xp, and I've received this errors: ..\nbproject\build-impl.xml:452: The following error occurred while executing this line: ..\nbproject\build-impl.xml:224: Compile failed; see the compiler error output for details.output for details. The lines are, respectively: 452: `<j2seproject3:javac gensrcdir="${build.generated.sources.dir}"/>` 224: <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" fork="${javac.fork}" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}"> I have tried to reinstall netbeans, java, and anything more...but I can't resolve this error. Do someone know how can I fix it? All the best! Leandro

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  • Making Python scripts work on MAMP

    - by Ravi Teja
    Hello All Python Pro's , I'm using mamp server for testing out all my web pages. I'm new to python. I'm able to run a script in python interpreter that will normally print a hello world. print "Hello World!" So i used the same line in a file with name test.py . So how should I run this on web. As am new to python, i tried some normal things, placing test.py in /htdocs/cgi-bin/ and trying to open it. But it says forbidden page. Anyone please help me making this work. Thanks

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  • Invalidate (MFC) debug assertion failed error message

    - by kobac
    I've made a custom control, and when I want it to repaint on the screen I call Invalidate(), and afterwards UpdateWindow(), but i get message: debug assertion failed for a file afxwin2.inl in line 150 which is: AFXWIN_INLINE void CWnd::Invalidate(BOOL bErase) { ASSERT(::IsWindow(m_hWnd)); ::InvalidateRect(m_hWnd, NULL, bErase); } The thing is that when I run the same app in release mode, it doesn't report any message! So this clue makes me think it's about some environment configuration I should change. What do you think? Thanks.

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  • Using Python and Mechanize with ASP Forms

    - by tchaymore
    I'm trying to submit a form on an .asp page but Mechanize does not recognize the name of the control. The form code is: <form id="form1" name="frmSearchQuick" method="post"> .... <input type="button" name="btSearchTop" value="SEARCH" class="buttonctl" onClick="uf_Browse('dledir_search_quick.asp');" > My code is as follows: br = mechanize.Browser() br.open(BASE_URL) br.select_form(name='frmSearchQuick') resp = br.click(name='btSearchTop') I've also tried the last line as: resp = br.submit(name='btSearchTop') The error I get is: raise ControlNotFoundError("no control matching "+description) ControlNotFoundError: no control matching name 'btSearchTop', kind 'clickable' If I print br I get this: IgnoreControl(btSearchTop=) But I don't see that anywhere in the HTML. Any advice on how to submit this form?

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  • Wamp server and xdebug installation

    - by jasmine
    I am trying to install xdebug on wamp server. With this code: zend_extension_ts="c:/wamp/bin/php/php5.3.0/ext/php_xdebug-2.1.0RC1-5.3-vc9.dll" xdebug.default_enable = on xdebug.remote_enable = 1 xdebug.remote_port = 9000 xdebug.remote_host = localhost And apache error log: PHP Warning: PHP Startup: Unable to load dynamic library 'c:/wamp/bin/php/php5.3.0/ext/php_xdebug-2.1.0RC1-5.2-vc6-nts.dll' - The specified module could not be found.\r\n in Unknown on line 0 <br /> <b>Warning</b>: PHP Startup: Unable to load dynamic library 'c:/wamp/bin/php/php5.3.0 /ext/php_xdebug-2.1.0RC1-5.2-vc6-nts.dll' - The specified module could not be found. I cant see xdebug in phpinfo page. What is wrong :(

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  • Test azure application in dev fabric.

    - by kiran826
    Hi, I have a created a sample web role application using cloud service. Before hosting my application in cloud, i want to test the application in dev fabric. I am sure that when we run the application from VS, it creates an environment that simulates the cloud. But if i want to give my application for testing to QA, do i still need to give my source to them and run the application from VS under dev fabric or do we any other way in running my deployed package under dev fabric. In a line my question is, How do i run my packaged azure application under dev fabric before hosting in Cloud? Can anyone having an idea, please share me some information? Thanks, Kiran

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  • How to properly rewrite ASSERT code to pass /analyze in msvc?

    - by Sorin Sbarnea
    Visual Studio added code analysis (/analyze) for C/C++ in order to help identify bad code. This is quite a nice feature but when you deal with and old project you may be overwhelmed by the number of warnings. Most of the problems are generating because the old code is doing some ASSERT at the beginning of the method or function. I think this is the ASSERT definition used in the code (from afx.h) #define ASSERT(f) DEBUG_ONLY((void) ((f) || !::AfxAssertFailedLine(THIS_FILE, __LINE__) || (AfxDebugBreak(), 0))) Example code: ASSERT(pBytes != NULL); *pBytes = 0; // <- warning C6011: Dereferencing NULL pointer 'pBytes' I'm looking for an easy and safe solution to solve these warnings that does not imply disabling these warnings. Did I mention that there are lots of occurrences in current codebase?

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  • simple c# arythmetics. winForms

    - by jello
    I'm doing simple divisions in c#, and I am a bit puzzled by its intricacies. Here's some code, and in the comments, the result. (btw, I only compile with 1 line not commented, if you say that I have 5 declarations of the same variable) double result = 2 / 3; //gives 0 double result = Convert.ToDouble(2) / Convert.ToDouble(3); // is good double result = double.Parse(2) / double.Parse(3); // gives me errors double result = double.Parse(2 / 3); // gives me errors double result = Convert.ToDouble(2 / 3); // gives 0 MessageBox.Show(result.ToString()); so if you have a bunch of integers you wanna mess with, you have to convert each one to a double. pretty tedious...

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  • How to avoid Cartesian product in an INNER JOIN query?

    - by flhe
    I have 6 tables, let's call them a,b,c,d,e,f. Now I want to search all the colums (except the ID columns) of all tables for a certain word, let's say 'Joe'. What I did was, I made INNER JOINS over all the tables and then used LIKE to search the columns. INNER JOIN ... ON INNER JOIN ... ON.......etc. WHERE a.firstname ~* 'Joe' OR a.lastname ~* 'Joe' OR b.favorite_food ~* 'Joe' OR c.job ~* 'Joe'.......etc. The results are correct, I get all the colums I was looking for. But I also get some kind of cartesian product, I get 2 or more lines with almost the same results. How can i avoid this? I want so have each line only once, since the results should appear on a web search.

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  • Error when specifying tag attributes in NHaml

    - by jessegavin
    I am just getting started with NHaml and ran into a snag. This is my application.haml file: %html %head %title = Get Some Data %link{ href="/media/css/styles.css", rel="Stylesheet", type="text/css" } %body %div.page %h1 = Get Some Data _ When I try to view in a browser it throw the following error: NHaml.Exceptions.SyntaxException: The attribute ',' is occurs twice. If I remove the line beginning with %link it works fine. What am I doing wrong? I am following the step-by-step from Brian Hartsock: http://blog.brianhartsock.com/2009/01/15/using-nhaml-from-source/#nhaml_reference

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  • [WPF] selected item in listbox unreadable because of the color !

    - by Anna
    I dynamically create a collection of stackpanels in my listbox. In this stackpanel are contained labels and checkbox horizontally aligned. The problem is when I click on a stackpanel, the selection is unreadable because the line become dark-blue whereas the letters stay black so black on blue, you see nothing... how can I dynamically change the forecolor of the selected elements in the stackpanel ? I say dynamically and not in the xml file, because all those elements are dynamically created, base on a database... thanksssss!!

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  • Enabling PostgreSQL support in PHP on Mac OS X

    - by Jordan Scales
    I'm having a terribly difficult time getting the command "pg_connect()" to work properly on my Mac. I'm currently writing a PHP script (to be executed from console) to read a PostgreSQL database and email a report. I've gone into my php.ini file and added extension=pgsql.so But, I'm met with the following error. PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/extensions/no-debug-non-zts-20090626/php_pgsql.so' - dlopen(/usr/lib/php/extensions/no-debug-non-zts-20090626/php_pgsql.so, 9): image not found in Unknown on line 0 PHP Fatal error: Call to undefined function pg_connect() in... (blah file here) When running phpinfo(), I see nothing about PostgreSQL, so what is my issue here?

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