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• manifest.mf is overwritten by ecplise during jar export

  - by freedev

  Hello guys, I would like make an executable jar archive with eclipse. So into my project I created file src/META-INF/MANIFEST.MF : Manifest-Version: 1.0 Main-Class: MainClass Class-Path: . But when I export my java eclipse project eclipse warn me with following message: "JAR export finished with warnings. See details for additional information. myproject/src/META-INF/MANIFEST.MF was replaced by the generated MANIFEST.MF and is no longer in the JAR." Anyone know how I can avoid this when I export my project in eclipse?

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• Rmagick Fails To Manipulate PNG

  - by Tyler DeWitt

  Following the Railscast episode on CarrierWave: I installed ImageMagick on Mountain Lion via homebrew, exported the following path: export PKG_CONFIG_PATH="/opt/local/lib/pkgconfig:$PKG_CONFIG_PATH" Symlinked the following: ln -s /usr/local/include/ImageMagick/wand /usr/local/include/wand ln -s /usr/local/include/ImageMagick/magick /usr/local/include/magick And installed rmagick via bundler. In my uploader I have the following: include CarrierWave::RMagick version :thumb do process :resize_to_limit => [85, 85] end Which creates thumbnails just fine, but not for png files. I've tried a handful of png images and it always fails with this error: Failed to manipulate with rmagick, maybe it is not an image? Original Error: no decode delegate for this image format `<path>/public/uploads/tmp/20121022-2133-9885-3333/thumb_cat_vs_internet.png' @ error/constitute.c/ReadImage/544 jpeg images work just fine. EDIT identify -list format | grep -i png returns nothing, indicating the png decode delegate is probably missing. Now what?

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• Testing file existence using NSURL

  - by Peter Hosey

  Snow Leopard introduced many new methods to use NSURL objects to refer to files, not pathnames or Core Services' FSRefs. However, there's one task I can't find a URL-based method for: Testing whether a file exists. I'm looking for a URL-based version of -[NSFileManager fileExistsAtPath:]. Like that method, it should return YES if the URL describes anything, whether it's a regular file, a directory, or anything else. I could attempt to look up various resource values, but none of them are explicitly guaranteed to not exist if the file doesn't, and some of them (e.g., NSURLEffectiveIconKey) could be costly if it does. I could just use NSFileManager's fileExistsAtPath:, but if there's a more modern method, I'd prefer to use that. Is there a simple method or function in Cocoa, CF, or Core Services that's guaranteed/documented to tell me whether a given file (or file-reference) URL refers to a file-system object that exists?

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• Phonegap/Cordova orientation change Android 4

  - by user1477576

  I have a problem changing the orientation of the device (Android 4). In other versions it works fine. Versión of Cordova: cordova-1.8.0.js / cordova-1.8.1.js In Android 4 the app crash or show: "A network error occurred. (file:///android_asset/www/index.html)" I searched a lot about this and no answer solves the problem. In most cases users suggest adding: android:configChanges="orientation|keyboardHidden|screenSize" In other cases: super.setIntegerProperty("loadUrlTimeoutValue",60000); That not work for me :( My manifest activity: <activity android:name=".AppNameActivity" android:label="@string/app_name" android:configChanges="orientation|keyboardHidden|screenSize"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> The application should run on Android 2.2 to 4. Thank you very much for the help.

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• Cannot get mysql gem to work in Snow Leopard, unable to setup ruby on rails environment

  - by user325020

  I am having some serious problems, however this seems to be a common thing. I have Snow Leopard 10.6.3 and here are my other version info: MySQL mysql Ver 14.14 Distrib 5.1.46, for apple-darwin10.2.0 (i386) using readline 5.1 gem 1.3.6 ruby 1.8.7 (2009-06-08 patchlevel 173) [universal-darwin10.0] My problem is that no matter what I do to try and install the mysql gem, i still get the error every time i do rake db:migrate uninitialized constant MysqlCompat::MysqlRes I have installed the mysql gem based on instructions around the web that say to use export ARCHFLAGS="-arch i386 -arch x86_64" ; sudo gem install --no-rdoc --no-ri mysql -- -v 2.7 --with-mysql-dir=/usr/local --with-mysql-config=/usr/local/mysql/bin/mysql_config This DOES work, as it gives this output: Building native extensions. This could take a while... Successfully installed mysql-2.8.1 1 gem installed Any help would be greatly appreciated

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• Fluent NHibernate: Entity from one table, but reference will map to another tables?

  - by Andy

  Given the following tables: Product ----------- ProductId : int (PK) ProductVersion : int ProductHistory ----------- ProductId : int (PK) ProductVersion : int (PK) Item ----------- ItemId : int (PK) ProductId : int (FK) -- ProductId + ProductVersion relates to ProductHistory ProductVersion : int (FK) And the following classes: public class Product { } public class Item { public Product Product { get; set; } } What I want to happen is this; we get a Product from the Product table, assign it to Item.Product property. But that Item.Product property should map to ProductHistory. The idea is that only the latest version of a product is in the main Product table, so we allow customers to search against that table (so that if each product has 4 versions and there are 1000 products, we only need to query though 1000 products, not 1000 products * 4 versions of each). Any idea how to acomplish this? Thanks Andy

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• Flex / ZendAMF / PHP app, corrupted data with some linux clients problem

  - by Laurent Jégou

  Hello, i'm buiding a survey web application, using Flex for the front-end (nice forms), and a MySQL database for the storage, linked by PHP with the help of ZendAMF. I largely borrowed from this nice tutorial by Alan Gruskoff : http://digitalshowcase.biz/wordpress/?page_id=26 (The only one tutorial i've found to work with the last version of Flex). The app seems to works nicely in my tests, except on certain linux boxes : the data is somehow corrupted : there is no error message, no glitch, but the response of the forms are not what the user selected. I tried to reproduce the error on a fresh installed ubuntu VM, but it works fine. I've asked friends for some tests, and several linux users showed the same problem, on ubuntu and suse machines, all freshly updated and functionnal. The application was targeted to be the survey tool for my doctoral thesis, so i'm quite desperate here, and before i'm dumping it to start anew with php only, i'm asking here in case someone can help, thanks :-) Please excuse my english, by the way. LJ.

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• android imageview scrolling to display full high quality image

  - by Javadid

  hi friends... i am working on displaying an image and placing an icon on top of it... clicking the icon will show an enlarged version of the image... though putting the imageview holding the image in a LinearLayout scales the image to the width of the dialog, the problem is that i need to display the image in a dialog but the image is very high resolution and hence is far bigger than the width of the dialog... I need to show the actual image with scrolling for both ways to see the whole image... But whenever i try putting the imageView in a scrollview the top of my imageview is blank... and again though image scrolls downwards the width is scaled to the width of the dialog... Helppppppppp guys....

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• Android webview cookie problem

  - by Tori

  I have a video link in a web view, on the emulator, I hear the audio and no video is displayed. I think this is an emulator issue. I tried on my Nexus One, when I click the link, it opens a new webview and tries to access the server almost immediately reverts back to the webview and does not show the video. Logcat says: WARN/ResponseProcessCookies(486): Cookie rejected: "BasicClientCookie[version=0,name=GX,domain=mail.google.com,path=/proxy/gmail/mail,expiry=Tue Mar 22 19:55:33 EDT 2011]". Illegal domain attribute "mail.google.com". Domain of origin: "android.clients.google.com" How can I fix this?

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• Bulding an multi-platform SWT application using Ant

  - by Mridang Agarwalla

  I'm writing an SWT application which can be used on Windows (32/64 bit) and Mac OSX (32/64 bit). Apart from the JRE I rely on the SWT library found here. I can find four versions of the SWT library depending upon my target platforms (as mentioned above). When building my application, how can I compile using the correct SWT Jar? If possible, I'd like to try and avoid hard-coding the Jar version, platform and architecture. The SWT Jars are named like this: swt-win32-x86_64.jar swt-win32-x86_32.jar swt-macosx-x86_32.jar swt-macosx-x86_64.jar (My project will be an open source project. I'd like people to be able to download the source and build it and therefore I've thought of including all the four versions of the SWT Jars in the source distribution. I hope this is the correct approach of publishing code relying on third-part libraries.) Thanks everyone.

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• Static nested class visibility issue with Scala / Java interop

  - by Matt R

  Suppose I have the following Java file in a library: package test; public abstract class AbstractFoo { protected static class FooHelper { public FooHelper() {} } } I would like to extend it from Scala: package test2 import test.AbstractFoo class Foo extends AbstractFoo { new AbstractFoo.FooHelper() } I get an error, "class FooHelper cannot be accessed in object test.AbstractFoo". (I'm using a Scala 2.8 nightly). The following Java compiles correctly: package test2; import test.AbstractFoo; public class Foo2 extends AbstractFoo { { new FooHelper(); } } The Scala version also compiles if it's placed in the test package. Is there another way to get it to compile?

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• MySQL 5.1 implicit cast from now() to a date field

  - by Savageman

  Hello, I have an issue with MySQL 5.1. A datetime data type isn't implicitly casted to match a date column. SELECT * FROM my_table WHERE my_date_field = NOW() This request doesn't return any rows using MySQL 5.1, but works well with version 5.0. If we use CURDATE() instead of NOW() it works both in MySQL 5.0 and MySQL 5.1. If the cast is explicit (CAST(NOW() AS DATE)), it also works both in MySQL 5.0 and MySQL 5.1. The problem only appears with implicit cast from datetime to date. Doesn't anyone already encountered this issue or has a clue about how to solve this problem? I know it's not the best to use NOW() instead of CURTIME(), but this isn't the question here. It is currently used in an application and the purpose is to avoid rewriting everything. Thanks!

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• How can open source projects obtain license for commercial software without spending a lot of money?

  - by Ikaso

  I just joined an open source project on codeplex. The project is based on the .NET compact framework. So the development tool is Visual Studio. Currently I am using some trial version of Visual Studio which is going to end and I wondered how can I obtain a valid license to work on the project without spending a lot of money. Please pay attention that the Express edition does not help me since my application is running on Windows Mobile 6.5 which is not supported on the Express edition (and the 2010 Express edition supports only Windows Mobile Phone 7 series development). In the general sense, are there some organizations that donate software licenses for open source projects?

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• Java: Non-static nested classes and instance.super()

  - by Kiv

  I'm having a hard time wrapping my head around non-static nested classes in Java. Consider the following example, which prints "Inner" and then "Child". class Outer { class Inner { Inner() { System.out.println("Inner"); } } } public class Child extends Outer.Inner { Child(Outer o) { o.super(); System.out.println("Child"); } public static void main(String args[]) { new Child(new Outer()); } } I understand that instances of Inner always have to be associated with an Outer instance, and that that applies to Child too since it extends Inner. My question is what the o.super() syntax means - why does it call the Inner constructor? I've only seen a plain super(args) used to call the superclass constructor and super.method() to call the superclass version of an overridden method, but never something of the form instance.super().

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• Join DELETE in MySql? How to?

  - by Camran

  I have this: $query="DELETE FROM classified, $sql_table WHERE classified.ad_id = '$id' AND classified.classified_id = $sql_table.classified_id AND classified.poster_password='$pass'"; I get this error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE classified.ad_id = 'Bmw_M3_E46_Full_29920' AND classified.cla' at line 1 Any help? As you can see the $sql_table is linked to the classifieds table with the fields classified_id I need to JOIN DELETE somehow. Basically classified table is the main table, then every category has its own tables with vehicle data. classified table has a field called classified_id which is the same as the Here is the full query echoed: DELETE FROM classified, vehicles WHERE classified.ad_id = 'Bmw_M3_E46_410811305' AND classified.classified_id = vehicles.classified_id AND classified.poster_password='some_password' Why isn't this working, Should it be so hard to delete from multiple tables? Thanks

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• Why is django admin not accepting Nullable foreign keys?

  - by p.g.l.hall

  Here is a simplified version of one of my models: class ImportRule(models.Model): feed = models.ForeignKey(Feed) name = models.CharField(max_length=255) feed_provider_category = models.ForeignKey(FeedProviderCategory, null=True) target_subcategories = models.ManyToManyField(Subcategory) This class manages a rule for importing a list of items from a feed into the database. The admin system won't let me add an ImportRule without selecting a feed_provider_category despite it being declared in the model as nullable. The database (SQLite at the moment) even checks out ok: >>> .schema ... CREATE TABLE "someapp_importrule" ( "id" integer NOT NULL PRIMARY KEY, "feed_id" integer NOT NULL REFERENCES "someapp_feed" ("id"), "name" varchar(255) NOT NULL, "feed_provider_category_id" integer REFERENCES "someapp_feedprovidercategory" ("id"), ); ... I can create the object in the python shell easily enough: f = Feed.objects.get(pk=1) i = ImportRule(name='test', feed=f) i.save() ...but the admin system won't let me edit it, of course. How can I get the admin to let me edit/create objects without specifying that foreign key?

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• Do I assign different or the same class id to 32-bit and 64-bit versions of the same IFilter?

  - by sharptooth

  I've implemented my own Microsoft Search IFilter. I need two versions of it - 32-bit and 64-bit for deploying them on corresponding systems. In case of IFilters for any file extension I can only register one IFilter class id. Which means I can only use one version on any system. So having two class ids seems useless - it only makes the automatic installer more complex. Do I reuse the same COM class id for both or do I use different class ids?

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• How to write a shell in Python

  - by panzi

  I've written a small console application that can perform certain tasks. The user interface is similar to things like version control systems or yum etc. So basically you can think of it as a domain specific language. Now I'd like to write a (bash like) shell that can execute and auto-complete this language and has a command history (so I do not have to load and save the quite large xml files on each command). In a nutshell I want something like ipython but not for executing python code but my own DSL. Are there any libraries that help me doing this? I see that there is a readline and rlcompleter module in python but its documentation seems to indicate that this is only for use with the python shell itself, or did I miss something there?

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• JQuery returns wrong value for IE Compatibility

  - by o-logn

  Hey , I'm using JQuery and there seems to be a problem when I run IE in compatibility mode (and generally any IE less than version 8). I'm trying to use attr("value") for a button control. In IE8, and other browsers, this works fine and the result of this code: alert($(this).attr("value")); is simply the value of set in the button attribute (e.g. Home, Settings, Help etc..) However, when this is run in IE compatibility view, I get the entire HTML as the output value: <SPAN class=ui-button-text>Home</SPAN> This causes my checks to fail. Is there a way to return just the Home section across all browsers? Thanks

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• Starting to construct a data access layer. Things to consider?

  - by Phil

  Our organisation uses inline sql. We have been tasked with providing a suitable data access layer and are weighing up the pro's and cons of which way to go... Datasets ADO.net Linq Entity framework Subsonic Other? Some tutorials and articles I have been using for reference: http://www.asp.net/(S(pdfrohu0ajmwt445fanvj2r3))/learn/data-access/tutorial-01-vb.aspx http://www.simple-talk.com/dotnet/.net-framework/designing-a-data-access-layer-in-linq-to-sql/ http://msdn.microsoft.com/en-us/magazine/cc188750.aspx http://msdn.microsoft.com/en-us/library/aa697427(VS.80).aspx http://www.subsonicproject.com/ I'm extremely torn, and finding it very difficult to make a decision on which way to go. Our site is a series of 2 internal portals and a public web site. We are using vs2008 sp1 and framework version 3.5. Please can you give me advise on what factors to consider and any pro's and cons you have faced with your data access layer. Thanks.

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• Inverse Factorial Function (Prolog)

  - by user2796815

  I have to write a Prolog program to computer the inverse of factorial function without using division. I was also given the note: "the inverse of a function is not necessarily a function". I have this is a normal factorial predicate.. fact(0,1). fact(N,F) :- N0, N1 is N-1, fact(N1,F1), F is N * F1. I've read on some other posts that you should be able to just switch around the arguments, but that doesn't seem to be the case with this version. Could anyone help me out with figuring out why?

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• Problem running gems in OS X

  - by akarnid

  I'm running Snow Leopard, and installed a custom built Ruby according to the guide here: http://hivelogic.com/articles/compiling-ruby-rubygems-and-rails-on-snow-leopard . My ruby binary lives in usr/local/bin/ruby and my gems are installed in /usr/local/bin/gem . My gem env looks like so: RUBY VERSION: 1.8.7 (2008-08-11 patchlevel 72) [universal-darwin10.0] - INSTALLATION DIRECTORY: /Library/Ruby/Gems/1.8 - RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby - EXECUTABLE DIRECTORY: /usr/bin I think I may have borked the install since all actions taked on gems give the error: ERROR: While executing gem ... (Errno::EEXIST) File exists - /usr/local/bin/ruby How do you edit the environment variables for the gem environment? And for those of you on OS X and using ruby AND gems, what did you use to get yourself up and running? I'm thinking of just nuking everything and starting anew.

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• iPhone SDK - How is data shared in a universal app

  - by norskben

  Stack overflow I want to make a universal version of my app available, but I am wondering how is data managed between the iPad and the iPhone versions? -Are they completely independent? or if I have a plist in the iPad app, does it also appear in the iPhone app. If so, is there any syncing etc etc. I have a few months experience with single iPad or iPhone apps, but never a universal. Thanks again. UPDATE: I was interested in the files in the /Documents folder, does this automatically update on itunes syncing at all?

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• MinGW and "delcaration does not declare anything"

  - by Bob Somers

  I'm working on converting a Linux project of mine to compile on Windows using MinGW. It compiles and runs just fine on Linux, but when I attempt to compile it with MinGW it bombs out with the following error message: camera.h:11: error: declaration does not declare anything camera.h:12: error: declaration does not declare anything I'm kind of baffled why this is happening, because I'm using the same version of g++ (4.4) on both Linux and Windows (via MinGW). The contents of camera.h is absurdly simple. Here's the code. It's choking on lines 11 and 12 where float near; and float far; are defined. #include "Vector.h" #ifndef _CAMERA_H_ #define _CAMERA_H_ class Camera{ public: Vector eye; Vector lookAt; float fov; float near; float far; }; #endif Thanks for your help.

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• How can I have MySQL write outfiles as a different user?

  - by David Locke

  I'm working with a MySQL query that writes into an outfile. I run this query once every day or two and so I want to be able to remove the outfile without having to resort to su or sudo. The only way I can think of making that happen is to have the outfile written as owned by someone other than the mysql user. Is this possible? Edit: I am not redirecting output to a file, I am using the INTO OUTFILE part of a select query to output to a file. If it helps: mysql --version mysql Ver 14.12 Distrib 5.0.32, for pc-linux-gnu (x86_64) using readline 5.2

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