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• iPhone CoreData Migration and modifying data

  - by ScottL

  I have an app that has both static data and user entered data in the CoreData store. I understand how to do a lightweight migration to a new database version, but how to I add or modify the static data without affecting the users data? If I have 50 static data entries to add and a couple to modify (ie. spelling mistakes) should they be stored in a different sqlite db and copied over? Also, is it possible to look at the version of the data store so that this copy only happens the first time the app is started up after upgrading? Sorry for the general noob type question, but this is the first time I have ever had to deal with this sort of issue. Thanks, Scott

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• Are there any standard one-click install/lauch mechanisms for the web?

  - by Niklas Bäckman

  The reason I ask is mostly due to how Google Chrome installation works once you click the "Accept and install" button from Firefox. After you click the installation is started directly and when it's completed Chrome itself starts up. Firefox does not show any "Save" or "Confirm" dialogs after you click the Install button (on Chrome install web page). Now, is this standard behaviour? Or might it be due to having an old version of Chrome already on the computer (Note: The new version was still installed from Firefox). Seems a bit risky to me, all you have to do is fool the user to click something and then you can do whatever you want on his machine, or? Personally I thought things like this only worked with IE/ActiveX.

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• Casting a Calculated Column in a MySQL view.

  - by Chris Brent

  I have a view that contains a calculated column. Is there are a way to cast it as a CHAR or VARCHAR rather than a VARBINARY ? Obviously, I have tried using CAST(... as CHAR) but it gives an error. Here is a simple replicable example. CREATE VIEW view_example AS SELECT concat_ws('_', lpad(9, 3,'0'), lpad(1,3,'0'), date_format(now(),'%Y%m%d%H%i%S')) AS calculated_field_id; This is how my view is created: describe view_example; +---------------------+---------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +---------------------+---------------+------+-----+---------+-------+ | calculated_field_id | varbinary(27) | YES | | NULL | | +---------------------+---------------+------+-----+---------+-------+ select version(); +-----------------------+ | version() | +-----------------------+ | 5.0.51a-community-log | +-----------------------+

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• C# app that uses Excel Interop, easy switch between 2003 2007?

  - by user320781

  I have an app written that just does really basic I/O on a spreadsheet. Read in a bunch of cells, do some sorting, and dump the output back into another spreadsheet. Works great on my machine. I have Office 2003 installed. When it runs on someone elses machine with 2007, it bombs, presumably due to the different versions of the Interop assemblies. I was hoping someone knew a way to dynamically change which/where the assembly is loaded from depending on the office version (getting the office version is easy from the registry). Sifting thru the rest of the internet, i didnt see anything to indicate that was possible :( . I tried installing the 2007 PIAs, but when i try to add a reference, they dont show up and i have no idea where to browse for them (they arent in the c:\windows\assemblies\; maybe the install didnt work). Am I going to have to get a machine with 2007 installed to build on every time i need to make updates?

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• Robotium BDD with Cucumber

  - by LucasGomes

  I want to know if you guys know how to make BDD tests with Robotium. As I research Robotium works with a different Virtual Machine (Dalvik) so I cannot run as Junit Test (Only with Android Junit Test). So I found a possible solution to run Robotium with Junit with RoboRemote https://github.com/groupon/robo-remote. But when i tried to integrate with cucumber the tests became unstable. So you guys know some way to make BDD tests using Robotium?

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• google salve - maven

  - by chris-gr

  Hi all, I tried to install google salve http://code.google.com/p/salve/ by adding following statements in the project's pom file: However, when running mvn dependency:resolve it states "unable to find resource "salve:salve:jar:2.0" in repository salve What's wrong? <dependency> <groupId>salve</groupId> <artifactId>salve</artifactId> <version>2.0</version> </dependency> <repository> <id>salve</id> <name>Google Maven Repository</name> <url>http://salve.googlecode.com/svn/maven2/</url> </repository>

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• Win32_PageFileUsage WMI call returning 0 for CurrentUsage

  - by Ryan Duffield

  I am querying for the current page file usage on Windows-based systems. This is meant to run on the .NET Framework, version 2.0 SP1 and has been tested (and works!) on Windows Vista, Windows 7, Windows Server 2003 R2 and Windows Server 2008. On Windows Server 2003 SP2 (original release, not R2) it appears to return 0: using (var query = new ManagementObjectSearcher("SELECT CurrentUsage FROM Win32_PageFileUsage")) { foreach (ManagementBaseObject obj in query.Get()) { uint used = (uint)obj.GetPropertyValue("CurrentUsage"); return used; } } This is simply returning the results from the first row returned for the WMI call. Even when a page file is being used, it returns 0. What causes the result to be 0 when it should be returning a larger value? It may be something specific to the machine in question, and could have nothing to do with the operating system version. I've also tried this with and without elevated privileges with the same results.

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• Contents changed(cleared?) when access the pointer returned by std::string::c_str()

  - by justamask

  string conf()     {         vector v;         //..         v = func(); //this function returns a vector         return v[1];     }     void test()     {         const char* p = conf().c_str();         // the string object will be alive as a auto var         // so the pointer should be valid till the end of this function,right?           // ... lots of steps, but none of them would access the pointer p         // when access p here, SOMETIMES the contents would change ... Why?         // the platform is solaris 64 bit         // compiler is sun workshop 12         // my code is compiled as  ELF 32-bit MSB relocatable SPARC32PLUS Version 1, V8+ Required         // but need to link with some shared lib which are ELF 32-bit MSB dynamic lib SPARC Version 1, dynamically linked, stripped     }

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• Can Visual Studio Express run from USB drive?

  - by system PAUSE

  Using an arbitrary Windows machine (2000/XP or later), I can install Eclipse CDT to a USB drive move that USB drive onto a different Windows machine--one that does not have any form of Eclipse software already installed, and potentially a different version of Windows (but 2000/XP or later) use Eclipse to develop application-level C/C++ programs on that second machine (and that includes using the debugger), running directly from the USB drive without copying anything to C:. I can do all this without having Administrator privileges on either machine. I can do the same with NetBeans, and with several other IDEs that support C/C++ development. Is it possible to do this with any version of Visual Studio Express? If not, can you explain the technical reason(s) this doesn't work?

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• error: strstream.h: No such file or directory

  - by subodh1989

  I am trying to run an old C++ code in Linux (Redhat). I am using gcc version 4.1.2. I got the following error: error: strstream.h: No such file or directory /trnuser1/rmtrain/DevelopmentEnv/Generic/CoreObjects/GCVTransformationServices.cpp:41: error: âostrstreamâ was not declared in this scope /trnuser1/rmtrain/DevelopmentEnv/Generic/CoreObjects/GCVTransformationServices.cpp:41: error: expected `;' before âstrDestXMLâ /trnuser1/rmtrain/DevelopmentEnv/Generic/CoreObjects/GCVTransformationServices.cpp:62: error: âstrDestXMLâ was not declared in this scope This code was running fine under Solaris with gcc version 2.95. The line pointed to by the error contains the following statement: ostrstream strDestXML; How do I solve this?

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• How Does the VS 2010 web.config work?

  - by chobo2

  Hi I am just wondering in VS2010 the web.config is broken up into web.config web.debug.config web.release.config So from what I gathered is the web.config is just like the master template. So I am guessing in my debug I could put things like my local database where in my release one I would put my server database. Now how does it know when to use the release version or debug version? I also here that you can have more than 2. How does that work?

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• iPhone: different icon for homescreen and App Store

  - by arne_

  I would like to know if the app icon on the iPhone can be slightly different than the one shown in a large version in Apple's App Store. It was discussed in short here: http://stackoverflow.com/questions/28551/tips-for-a-successful-appstore-submission/266657#266657 But I wanted to make sure if anyone has more experience with that. To give an example: The New York Times has many words incorporated in its app icon (see http://itunes.apple.com/de/app/nytimes/id284862083?mt=8). Would it be okay to have a full black colored background without the words in the small/homescreen version of the icon?

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• Book recommendation for project architecture?

  - by Mark

  I already have a solid knowledge of Object-oriented PHP as well as HTML/Javascript/MySQL plus a basis in Java. Now I would like to implement my projects in an efficient way, whether it is a web project in PHP or an Android application. My problem is once my code gets bigger I start messing error handling, with form validation etc, and I guess its because of my poor basis in software architecture. Thanks.

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• Unknown Column 'template' in where clause, while using a stored procedure.

  - by sai

  Hello, I have a stored procedure, which has got executed without any errors, but gives me an error "#1054: Unknown column 'templateName' in where clause" when I run it. The stored procedure is delimiter // DROP PROCEDURE getData// CREATE DEFINER=root@localhost PROCEDURE getData(IN templateName VARCHAR(45),IN templateVersion VARCHAR(45),IN userId VARCHAR(45)) BEGIN set @version = CONCAT("SELECT 'saveOEMsData_answersVersion' FROM saveOEMsData where 'saveOEMsData_templateName' = ",templateName," and 'saveOEMsData_templateVersion' = ",templateVersion," and 'saveOEMsData_userId'= ",userId); PREPARE s1 from @version; EXECUTE S1; END // delimiter ; Now I call it using "call getData('templateName','1','285');". And whenever I call it, I get the mentioned error. What could the problem be?? It surely is syntactical, I have been reading the mysql manuals for 2 days and have come out without!! Any help would be great!! Thanks

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• XCode iPhone OS Deployment Target Tool

  - by Trah Divad

  Problem I'm currently stuck trying to figure out what "iPhone OS Deployment Target" setting to use. I do not want to write conditional code right now, so I'd like the lowest version that runs my application fine. At first I thought it would be 2.0 as I wasn't using any 3.0 features, but then i realized that AVAudioRecorder is a 3.0 API. I don't want to be manually checking EVERY function I use in the documentation. Question Is there a tool that will check the OS availability of each functions you call in your code to figure out what the Deployment Target should be? That tool could be a good old compiler, but the latest version of the iPhone SDK does not come with the PRE-3.0 SDKs.

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• Recommended place for pre-translated Zend Framework resources

  - by Exception e

  Since zf 1.10 Zend Framework ships with pre-translated validation messages. They are outside the library path. The manual illustrates how to load these in your bootstrap. $translator = new Zend_Translate( 'array', '/resources/languages', $language, array('scan' => Zend_Locale::LOCALE_DIRECTORY) ); Zend_Validate_Abstract::setDefaultTranslator($translator); I am inclined to think that these resources are specific to the zf-version; validators could change over time. If i copy the resources to my application tree I need to perform additional maintenance each time I upgrade to a newer version. What is best practice? Is there a ZF convention already?

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• Does FastCGI support PHP 5.3.2 centOS?

  - by bn

  I just upgrade the PHP version in my VPS to 5.3.2 I used FastCGI and worker MPM in php 5.1.2 or 5.2.1 I forgot, it worked fine, and it was so fast, I like it. After I upgrade the PHP version, it gives me Internal Server Error 500 on all .php pages. What is wrong? does FCGI support php 5.3.2? If yes, there should be some differences in setting it up? what should I change to get it back working? Thank You

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• Darwin kernel architecture and OS X, 64bit on 32bit kernel, how does this work?

  - by overscore

  The OS X Lion (10.7) OS runs on mostly 64-bit binaries as reported by Activity Monitor. Given this, and the fact that my laptop runs a 32-bit version of the EFI and thus also a 32-bit kernel, how does the arch mixing work in general? Darwin Kernel Version 11.3.0: Thu Jan 12 18:48:32 PST 2012; root:xnu-1699.24.23~1/RELEASE_I386 Normally one would run 32b binaries on x86_64, but the other way around would require pushing the cpu into 64b mode, which AFAIK cannot be undone. Hope this question is clear enough..

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• how make the css and javascript versionised..

  - by Jacob_pgr

  i want to maintain version for javascript and Css, how to implement..?

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• How can I compare rows from 2 tables that have composite primary keys?

  - by cdeszaq

  Here's the scenario: I have 2 tables with data, one is the 2009 version and the other is the 2010 version. The primary key for each of the tables is a composite key. I know there is a different number of rows in each one and I need to find out the differences. Typically, in the "normal" primary key set-up, I would just look for primary key values NOT IN the list of primary keys from the other table. But I don't know how to do this with a composite primary key (or even if it's possible). So, how can I compare the rows from these two tables?

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• Recommendations for Slideshow Publishing Tool

  - by Chris_K

  A client has asked me to research production tools for publishing slideshows on their Web site. The tool must be very easy to use and it has to generate a mobile version as well as a desktop version of the slideshow. (I'll spare you the rest of the specs.) Tools under consideration include SlideShowPro and Soundslides. Do you have a favorite tool, intended for publishers? In addition to generating code for pasting into a Web page, it would be great if the tool had a hosting component as well, so that a future iPhone app could consume an XML feed of the slideshows, similar to what SlideShowPro offers.

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• DateTime object is blank

  - by user522962

  I am trying to convert a date to a DateTime Object. My code works fine on my localhost (php version 5.3) but returns a blank DateTime object on my remote server (php version 5.2.14). Am I missing something really obvious? <?php $d = '2010-01-01'; $n = new DateTime ( $d ); print_r($n); ?> // result on localhost: DateTime Object ( [date] => 2010-01-01 00:00:00 [timezone_type] => 3 [timezone] => UTC ) // result on remotehost: DateTime Object ( ) // is blank

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• How to self-update PHP+MySQL CMS?

  - by SaltLake

  I'm writing a CMS on PHP+MySQL. I want it to be self-updatable (throw one click in admin panel). What are the best practices? How to compare current version of cms and a version of the update (application itself and database). Should it just download zip archive, upzip it and overwrite files? (but what to do with files that are no longer used). How to check if an update is downloaded correctly? Also it supports modules and I want this modules to be downloadable from the admin panel of cms. And how should I update MySQL tables?

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• Is the XML processing instructions node mandatory ?

  - by ereOn

  I had a discussion with a colleague of mine about the XML processing instructions node (I'm talking about this = <?xml version="1.0" encoding="UTF-8"?>). I believe that for something to be called "valid XML", it requires a processing instructions node. My colleague states that the processing instruction node is optionnal, since the default encoding is UTF-8 and the version is always 1.0. This make sense, but what does the standard says ? In short, given the following file: <books> <book id="1"><title>Title</title></book> </book> Can we say that: It is valid XML ? It is a valid XML node ? It is a valid XML document ? Thank you very much.

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• How to introduce multi-column constraint with JPA annotations?

  - by plouh

  I am trying to introduce a multi-key constraint on a JPA-mapped entity: public class InventoryItem { @Id private Long id; @Version private Long version; @ManyToOne @JoinColumn("productId") private Product product; @Column(nullable=false); private long serial; } Basically (product, serial) pair should be unique, but I only found a way to say that serial should be unique. This obviously isn't a good idea since different products might have same serial numbers. Is there a way to generate this constraint via JPA or am I forced to manually create it to DB?

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