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• TypeInitilazationException When Getting an NHibernate Session

  - by Paul Johnson

  I’ve run into what appears to be an NHibernate config problem. Basically, I ran up a simple proof of concept persistence integration test using NUnit, the test simply querys an Oracle database and successfully returns the last record received by the underlying table. However, when the assemblies are taken out of the NUnit test environment and deployed as they would be for an actual application build, my call for an NHibernate session results in a ‘TypeInitializationException’ whilst executing the code line: sessionFactory = New Configuration().Configure().BuildSessionFactory() The application is a vb.net console app running against an Oracle 9.2 database, using a ‘coding framework’ published on the web by Bill McCafferty entitled 'NHibernate Best Practices with ASP.NET' (pre S#harp Architecture). I am running version 2.1.2.4000 of NHibernate. Any assistance much appreciated. Kind Regards Paul J.

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• Entity Framework, what's so bad and what's so good?

  - by AverageJoe719

  Hi all, I am curious as to what your opinions are in Entity Framework? I have read some things like the first version of it is super horrible because it doesn't handle many to many relationships (though many ORMs don't and I've never seen the issue with just making a linking table). Also is LINQ to Entities the same as Entity Framework? I think it is, but it seems like one term is used or the other. I have used Linq to SQL before, what are the advantages of it compared to that? In terms of coding preference I like to build everything from the ground up so I can fully understand it/be in control of the code I write. So I have heard that Entity Framework is harder and I know LinqToSQL handles a lot of stuff automatically, but specifically what are the differences? I appreciate your responses, Thanks =)

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• Client/JS Framework for "Unsaved Data" Protection?

  - by Kevin Dostalek

  Hey all- we have a typical web application that is essentially a data entry application with lots of screens some of which have some degree of complexity. We need to provide that standard capability on making sure if the user forgets to click the "Save" button before navigating away or closing their browser they get a warning and can cancel (but only when there is unsaved or dirty data). I know the basics of what I've got to do-- in fact I'm sure I've done it all before over the years (tie in to onbeforeunload, track the "dirty" state of the page, etc...) but before I embark on coding this YET AGAIN, does anyone have some suggestions for libraries already out there (free or otherwise) that will help out? Thanks!

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• mySql table returning JSON that needs formatting for a iPhone UITableview

  - by Michael Robinson

  I have a php query the returns the following JSON format from a table. [{"memberid":"18", "useridFK":"30", "loginName":"Johnson", "name":"Frank", "age":"23", "place":"School", }, It needs the following format: [{"memberid":"18" { "useridFK":"30", "loginName":"Johnson", "name":"Frank", "age":"23", "place":"School",} }, I can figure out where/how to convert this, Where would I create the formatting following: (1) In the php return? (2) the JSON instructions for deserialization? or (3) Some kinb of Obj-C coding instruction? My end use is a simple Drill Down table using the NSObject, so when I select "memberid" row, I'll get the child/detail list on the next UITableview. My Data.plist will look like the following: Root: Dictionary V Rows: Array V Item 0: Dictionary Title: String 18 V Children Array V Item 0 Dictionary Title String 30 etc. Thanks in advance, this site rocks.

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• Java: Local Enums

  - by bruno conde

  Today, I found myself coding something like this ... public class LocalEnums { public LocalEnums() { } public void foo() { enum LocalEnum { A,B,C }; // .... // class LocalClass { } } } and I was kind of surprised when the compiler reported an error on the local enum: The member enum LocalEnum cannot be local Why can't enums be declared local like classes? I found this very useful in certain situations. In the case I was working, the rest of the code didn't need to know anything about the enum. Is there any structural/design conflict that explains why this is not possible or could this be a future feature of Java?

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• How to organize integrity tests and code unit tests?

  - by karlthorwald

  I have several files with code testing code (which uses a "unittest" class). Later I found it would be nice to test database integrity also. I put this into a separate directory tree. (Things like the keys have correct format, parent and child nodes are pointing correctly and such.) I use the same unittest class for the integrity tests. Now I wonder if it makes really sense to keep this separate. To test the integrity of data I often duplicate parts of code that I use to test the code that handles the data. But it is not the same. The code tests use test databases (that get deleted after each test) and the integrity tests connect to the live data and analyze it. The integrity tests I want to call from cron and send an alarm if something happens in the live database. How would you handle that? Are there standards for such a setup? What is your experience? My tendency is to put everything in the same file, which would result in the code tests also being executed by the cron on the production environment.

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• Getting php tips and tutorials as daily emails to improve the knowledge in php programming

  - by Sourabh

  Hi Thanks for your time. This question is related to php programming but not a programming question.I have a young team of php (LAMP + javascript) programmers.I want them to learn better coding and keep themselves updated with the latest advancements in web domain. I was thinking if there was any web site which send daily emails about php questions / problems/ solutions to common problems/ tips which will practically help the people to spend 10-15 minutes daily and enjoy the learning.This will also kind of automate the habit of self learning on daily basis. There are lots of PHP forums and php tutorials website, I tried to google but I did not find any website which does what I am looking for. Please let me know if you know such website.If you have any other ideas to achieve the goal are also welcome. -Sourabh

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• Thread-safe initialization of function-local static const objects

  - by sbi

  This question made me question a practice I had been following for years. For thread-safe initialization of function-local static const objects I protect the actual construction of the object, but not the initialization of the function-local reference referring to it. Something like this: namspace { const some_type& create_const_thingy() { lock my_lock(some_mutex); static const some_type the_const_thingy; return the_const_thingy; } } void use_const_thingy() { static const some_type& the_const_thingy = create_const_thingy(); // use the_const_thingy } The idea is that locking takes time, and if the reference is overwritten by several threads, it won't matter. I'd be interested if this is safe enough in practice? safe according to The Rules? (I know, the current standard doesn't even know what "concurrency" is, but what about trampling over an already initialized reference? And do other standards, like POSIX, have something to say that's relevant to this?) For the inquiring minds: Many such function-local static const objects I used are maps which are initialized from const arrays upon first use and used for lookup. For example, I have a few XML parsers where tag name strings are mapped to enum values, so I could later switch over the tags enum values.

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• If you can't do a Support Role, does this mean you should not be in development?

  - by Alex

  Hi, I've been shifted around roles a lot, and have been put in a support role which seems to deal out a lot of rubbish due to poor business management. Anyway, my line manager says that he's not sure he would recommend me for a developer role as they regard support as a poor technical role. What I resent is the fact that not all the information is available to us about what we're supporting and I miss coding. This thing I'm supporting has been regarded as a disaster when it went in and is still highly unstable. The thing is...does he have a point about Support roles being under developers, or are they completely two different kettle of fish?

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• .ics Calendar File - Parsing Date Time - What is the time format?

  - by Josh

  I am coding in php, attempting to get the start\end dates and times for events. I am utilizing the following RegEx for parsing out the information: $pattern='/(?P<StartDate>[0-9]{8})T(?P<StartTime>[0-9]{6}) .+(?P<EndDate>[0-9]{8})T(?P<EndTime>[0-9]{6})/'; The sample event entry is here: BEGIN:VEVENT UID:34b09fd7-8e6e-4d56-86b0-445745b89d93 ORGANIZER;CN=*********:mailto:********* DTSTART;TZID="(GMT-06.00) Central Time (US & Canada)":20100413T130000 DTEND;TZID="(GMT-06.00) Central Time (US & Canada)":20100413T160000 STATUS:CONFIRMED CLASS:PRIVATE X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY TRANSP:OPAQUE X-MICROSOFT-DISALLOW-COUNTER:TRUE DTSTAMP:20100414T140711Z SEQUENCE:0 END:VEVENT 20100413T130000 and 20100413T160000 are the start and end points. The dates are straight forward, however how do I interpret the time part? This event starts at one and ends at four.

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• My code works in Debug mode, but not in Release mode.

  - by Nima

  Hi, I have a code in Visual Studio 2008 in C++ that works with files just by fopen and fclose. Everything works perfect in Debug mode. and I have tested with several datasets. But it doesn't work in release mode. It crashes all the time. I have turned off all the optimizations, also there is no dependency to anything(in the linker), and also I have set these: Optimization: Disabled(/Od) Keep Unreferenced Data. Do Not Remove Redundant Optimize for Windows98: NO I still keep wondering how it should not work under these circumstances. What else should I turn off to let it works as in debug mode? I think if it works in release mode but not in debug mode, it might be a coding fault but the other way looks weird. isn't it? I appreciate any help. --Nima

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• ie7 preserve whitespace on dynamically injected text

  - by Rajat

  <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <script type="text/javascript"> function init(){ document.getElementById('test2').innerHTML = '1 2'; } </script> <style type="text/css"> #test{ white-space:pre; } #test2{ white-space:pre; } </style> <title></title> </head> <body onload="init();"> <div id="test"> 1 2 </div> <div id="test2"></div> </body> </html> Here is an example page showing my problem. I have two divs. Each has this text '1 2' with white-space. The only difference is that one is injected dynamically and one is in the html itself. If you open the above page in IE7, the text in div test2 doesn't respect white space. How can i get the same behavior for the text that is dynamically injected?? P.S. My doctype is triggering standards mode on IE7.

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• jQuery Custom Gallery and jCarousel problem

  - by steve

  Active site can be seen here: http://www.studioimbrue.com/index2.php There are currently two small problems with the coding. First: when the page loads and you attempt to click on one of the large images to advance, nothing happens. Once a thumbnail is clicked, the click functionality of the large image comes available. I'm trying to fix it so when the page loads, the user can just start clicking the large image. Second: when an image is clicked, the thumbnail highlight changes. The only problem there is once it gets past 4, the "current" thumbnail needs to be seen, thus the carousel should go to that one. Right now the code for that is nextThumb.closest('.thumbscontainer').jcarousel('next'); but that makes it scroll every time you click. Thanks for any help

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• Content area not expanding with the content within it!

  - by Caleb

  I have been coding a design I had been working on for a week or so and have core across a snag. While doing the HTML/CSS of one of my right column modules the content within it expands however the bg and bordered area it is within does not. htttp://www.gamefriction.com/Coded/ (url with example) http://www.gamefriction.com/Coded/css/style.css (css stylesheet used on page) This website is purely HTML and CSS at this time all code can be viewed through the View Source option on all browsers. The area that is not working properly is the bullet links in the right module with the blue background that says "League Menu". The content above that will make the module background expand however the linked bullet menu will not.

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• Any good books out there for advanced concepts like lambdas, delegates, events etc?

  - by they_soft

  I've read about these features but I don't think I've seen enough to consistently apply them in my coding, eg "This would be better done with a delegate than with my other, outdated approach". I know what they do, but I want more examples of use cases, or want some heuristic to help me think in terms of such features. All the books I've seen either focus only on the basics or just mention the features as part of the language. Is there any book out there that deals with this? Preferably C# or language agnostic.

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• accessing files after setup.py install

  - by Matthew

  I'm developing a python application and have a question regarding coding it so that it still works after an user has installed it on his or her machine via setup.py install or similar. In one of my files, I use the following: file = "TestParser/View/MainWindow.ui" cwd = os.getcwd() argv_path = os.path.dirname(sys.argv[0]) file_path = os.path.join(cwd, argv_path, file) in order to get the path to MainWindow.ui, when I only know the path relative to the main script's location. This works regardless of from where I call the main script. The issue is that after an user installs the application on his or her machine, the relative path is different, so this doesn't work. I could use __file__, but according to this, py2exe doesn't have __file__. Is there a standard way of achieving this? Or a better way?

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• C++ enumerations and compiler dependency

  - by dougie

  I currently have code with an enum where one value is set and the rest are left to be set by the compiler using the previous value +1, or so I hope. Is this functionality within an enumerated type compiler dependant, an example is below to clarify. enum FUNC_ERROR_CODE { FUNC_SUCCESS, FUNC_ERROR_1 = 24, FUNC_ERROR_2, FUNC_ERROR_3 } Is it safe to assume that FUNC_ERROR_2 will have the value 25 and FUNC_ERROR_3 will have the value 26, regardless of compliler used. I'm coding this so as a function can return an integer value, 0 is always success and any other value can signify failure.

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• Who architected / designed C++'s IOStreams, and would it still be considered well-designed by today'

  - by stakx

  First off, it may seem that I'm asking for subjective opinions, but that's not what I'm after. I'd love to hear some well-grounded arguments on this topic. In the hope of getting some insight into how a modern streams / serialization framework ought to be designed, I recently got myself a copy of the book Standard C++ IOStreams and Locales by Angelika Langer and Klaus Kreft. I figured that if IOStreams wasn't well-designed, it wouldn't have made it into the C++ standard library in the first place. After having read various parts of this book, I am starting to have doubts if IOStreams can compare to e.g. the STL from an overall architectural point-of-view. Read e.g. this interview with Alexander Stepanov (the STL's "inventor") to learn about some design decisions that went into the STL. What surprises me in particular: It seems to be unknown who was responsible for IOStreams' overall design (I'd love to read some background information about this — does anyone know good resources?); Once you delve beneath the immediate surface of IOStreams, e.g. if you want to extend IOStreams with your own classes, you get to an interface with fairly cryptic and confusing member function names, e.g. getloc/imbue, uflow/underflow, snextc/sbumpc/sgetc/sgetn, pbase/pptr/epptr (and there's probably even worse examples). This makes it so much harder to understand the overall design and how the single parts co-operate. Even the book I mentioned above doesn't help that much (IMHO). Thus my question: If you had to judge by today's software engineering standards (if there actually is any general agreement on these), would C++'s IOStreams still be considered well-designed? (I wouldn't want to improve my software design skills from something that's generally considered outdated.)

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• adldap class, need to search for user in two groups

  - by Brad

  http://adldap.sourceforge.net/wiki/doku.php?id=api_user_functions#user_ingroup_username_group_recursive_null I am using the adLDAP class above to authenticate users against our ldap server. I was wondering how I could check multiple groups to see if the user belongs to either, if they belong to either. I don't know if user_ingroup($username,$group,$recursive=NULL); can handle search two different groups for the user, need help coding it to search for the user in two different groups, and as soon as it finds it in one of those, break the operation and set a variable to true. Any help is appreciated.

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• Database connection management in Spring

  - by ria

  Do we have to explicitly manage database resources when using Spring Framework.. liking closing all open connections etc? I have read that Spring relieves developer from such boiler plate coding... This is to answer an error that I am getting in a Spring web app: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: ORA-00020: maximum number of processes (150) exceeded The jdbcTemplate is configured in the xml file and the DAO implementation has reference to this jdbcTemplate bean which is used to query the database.

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• int considered harmful?

  - by Chris Becke

  Working on code meant to be portable between Win32 and Win64 and Cocoa, I am really struggling to get to grips with what the @#$% the various standards committees involved over the past decades were thinking when they first came up with, and then perpetuated, the crime against humanity that is the C native typeset - char, short, int and long. On the one hand, as a old-school c++ programmer, there are few statements that were as elegant and/or as simple as for(int i=0; i<some_max; i++) but now, it seems that, in the general case, this code can never be correct. Oh sure, given a particular version of MSVC or GCC, with specific targets, the size of 'int' can be safely assumed. But, in the case of writing very generic c/c++ code that might one day be used on 16 bit hardware, or 128, or just be exposed to a particularly weirdly setup 32/64 bit compiler, how does use int in c++ code in a way that the resulting program would have predictable behavior in any and all possible c++ compilers that implemented c++ according to spec. To resolve these unpredictabilities, C99 and C++98 introduced size_t, uintptr_t, ptrdiff_t, int8_t, int16_t, int32_t, int16_t and so on. Which leaves me thinking that a raw int, anywhere in pure c++ code, should really be considered harmful, as there is some (completely c++xx conforming) compiler, thats going to produce an unexpected or incorrect result with it. (and probably be a attack vector as well)

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• SharePoint Permissions

  - by Greg

  I have a custom workflow. This workflow removes permissions to items when an item is added (example an item is added by a service account and once added those permissions need to be removed from that item). This works as I have the service account 'hard coded' in the custom workflow. Now I would like to remove this hard coding and when a item is added to a list I would like to iterate through all users that have access to the list item. If a user matches some algorithm then remove that user from the item permissions which will be 0 to many. The piece I'm stuggling with is how to iterage all users with permission to a SPListItem. Any thoughts on how to accomplish this? Thanks in advance!

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• Is there a Java API for creating a XHTML document?

  - by Bedwyr Humphreys

  I want to provide a simple XHTML representation of each of the resources in a REST web service. At the moment i'm using a StringBuilder to generate these which is both tedious and error prone. I don't see these changing after I publish the service but the process of coding each is a bit painful. Is there a XHTML document writer api? Should I just use an XML writer? Which one? Should I just roll my own basic HTML document class - doctype is the same each time, i just need to set the title, metatags and body content, most of which (but not all content) is already in HTML for the GETs. Or should I just use StringBuilder and stop whining? ;) Thanks.

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• Marshal a list of objects from VB6 to C#

  - by Andrew

  I have a development which requires the passing of objects between a VB6 application and a C# class library. The objects are defined in the C# class library and are used as parameters for methods exposed by other classes in the same library. The objects all contain simple string/numeric properties and so marshaling has been relatively painless. We now have a requirement to pass an object which contains a list of other objects. If I was coding this in VB6 I might have a class containing a collection as a member variable. In C# I might have a class with a List member variable. Is it possible to construct a C# class in such a way that the VB6 application could populate this inner list and marshal it successfully? I don't have a lot of experience here but I would guess Id have to use an array of Object types.

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• Looking for help with a design for a simple C# calendar app.

  - by Vladislav

  As a personal project, I'm putting together a C# WPF calendar. I'm stuck on coding the calendar screen - specifically, the 5x7 grid of days. I've first tried to code it using elements like Panels, Labels, and Buttons. I've decided that was too cumbersome. I've then decided to use GDI to draw the calendar myself. I now have a wonderful layout - but I'm not sure how to handle interactive regions of the calendar. (Say, Previous/Next month, clicking on any particular day...) After rendering the calendar screen, should I be creating button objects for all those tasks, and assigning onClick handlers to them? Or is there an alternative solution? Thanks in advance. -Vladislav

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