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• Is there a way to track data structure dependencies from the database, through the tiers, all the way out to a web page?

  - by Sean Mickey

  When we design applications, we generally end up with the same tiered sets of data structures: A persistent data structure that is described using DDL and implemented as RDBMS tables and columns. A set of domain objects that consist primarily of data structures, usually combined with business-rule level logic, that are implemented in a programming language such as Java. A set of service layer interfaces that directly support use case implementations (which use the domain data structures as parameters), implemented as EJBs or something equivalent in another programming language. UI screens that allow users to C reate, R etrieve, U pdate, and (maybe) D elete all manner of data structures and graphs of data structures, with numerous screens and with multiple UI widgets, all structured to support the same data structures. But if you want to change the data structures in any of these tiers, it always seems extremely difficult to assess the impact(s) the change will have across the application. UML can help, but tracing through diagram after diagram is not a real solution to this problem. The best I have ever seen was a homespun data tracking spreadsheet document that listed all of the data structures and walked the relationships from tier-to-tier. Is there a tool or accepted approach that makes it easy to identify a data structure in any tier and easily obtain a list of all dependent: database table and column data structures domain object data structures service layer interface methods and parameter data structures screen & UI component data structures

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• Should I implement BackBone.js into my ASP.NET WebForms applications?

  - by Walter Stabosz

  Background I'm trying to improve my group's current web app development pattern. Our current pattern is something we came up with while trying to rich web apps on top of ASP.NET WebForms (none of us knew ASP.NET MVC). This is the current pattern: ! Our application is using the WinForms Framework. Our ASPX pages are essentially just HTML, we use almost no WebControls. We use JavaScript/jQuery to perform all of our UI events and AJAX calls. For a single ASPX page, we have a single .js file. All of our AJAX calls are POSTs (not RESTful at all) Our AJAX calls contact WebMethods which we have defined in a series of ASMX files. One ASMX file per business object. Why Change? I want to revise our pattern a bit for a couple of reasons: We're starting to find that our JavaScript files are getting a bit unwieldy. We're using a hodgepodge of methods for keeping our local data and DOM updates in sync. We seem to spend too much time writing code to keep things in sync, and it can get tricky to debug. I've been reading Developing Backbone.js Applications and I like a lot of what Backbone has to offer in terms of code organization and separation of concerns. However, I've gotten to the chapter on RESTful app, I started to feel some hesitation about using Backbone. The Problem The problem is our WebMethods do not really fit into the RESTful pattern, which seems to be the way Backbone wants to consume them. For now, I'd only like to address our issue of disorganized client side code. I'd like to avoid major rewrites to our WebMethods. My Questions Is it possible to use Backbone (or a similar library) to clean up our client code, while not majorly impacting our data access WebMethods? Or would trying to use Backbone in this manner be a bastardization of it's intended use? Anyone have any suggestions for improving our pattern in the area of code organization and spending less time writing DOM and data sync code?

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• Future direction for a developer who is expert in latest software technologies…

  - by Muaz Khan

  Hi everyone, If a (new-coming) developer that learns latest technologies as well as can develop amazing stuff with those technologies and did Bachelors in Arts (BA). So what ’ll be the future of this kind of developer? I meant did he can get good job without degree? I think (but it is the universal truth that) no one (org or company) permit these kind of developers to join them because degree is must for job!! I’m worried about why the world depends upon degree? Why degree is necessary for good job? If a developer has a good experience, why he cannot be able to get good job without degree? What is the future of developer that starts his life as a freelancer and learns everything himself with the help of online available resources? Why companies prerequisite the degree for a good job? A developer without degree can be expert than that who have a degree of MSC etc. Because in 3rd world countries especially Pakistan, a BSC level student taught VB6 and the MSC level student learns C/C++. The common student doesn’t know about latest innovative technologies and he think that the world is depending upon VB6 or C/C++. What is the comparison of that students with a developer that do Bachelors in Arts but know (and can do well with) latest technologies.

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• Woes of a Junior Developer - is it possible to not be cut out for programming?

  - by user575158

  (Let me start off by asking - please be gentle, I know this is subjective, but it's meant to incite discussion and provide information for others. If needed it can be converted to community wiki.) I recently was hired as a junior developer at a company I really like. I started out in the field doing QA and transitioned into more and more development work, which is what I really want to end up doing. I enjoy it, but more and more I am questioning whether I am really any good at it or not. Part of this is still growing into the junior developer role, I know, but how much? What are junior developers to expect, what should they be doing and not doing? What can I do to improve and show my company I am serious about this opportunity? I hate that I am costing them time by getting up to speed. I've been told by others that companies make investments in Junior devs and don't expect them to pay off for a while, but how much of this is true? There's got to be a point when it's apparent whether the investment will pay off or not. So far I've been trying to ask as many questions I can, but I've you've been obsessing over a simple problem for some time and the others know that, there comes a time when it's pretty embarrassing to have to get help after struggling so long. I've also tried to be as open to suggestion as possible and work with others to try to refactor my code, but sometimes this can be hard clashing with various team members' personal opinions (being told by someone to write it one way, and then having someone else make you rewrite it). I often get over-stressed and judge myself too harshly, but I just don't want to have to struggle the rest of my life trying to get things work if I just don't have the talent. In your experience, is programming something that almost everyone can learn, or something that some people just don't get? Do others feel this way, or did you feel that way when starting out? It scares me that I have no other job skills should I be unsuited for having the skills necessary to code well.

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• Recommendations for books on career development

  - by Victor

  For a programmer that wishes to udnerstand principles of economics/how money flows, the basic principles of money exchanging hands..what are some good books/magazines/publications/journals? Please assume a beginner level willing to learn fast and hard. The objective is to understand why some jobs pay more than others. On the topic of books, are there some well known autobiographies of leading CTOs coming from a technical background?

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• What are the advantages of version control systems that version each file separately?

  - by Mike Daniels

  Over the past few years I have worked with several different version control systems. For me, one of the fundamental differences between them has been whether they version files individually (each file has its own separate version numbering and history) or the repository as a whole (a "commit" or version represents a snapshot of the whole repository). Some "per-file" version control systems: CVS ClearCase Visual SourceSafe Some "whole-repository" version control systems: SVN Git Mercurial In my experience, the per-file version control systems have only led to problems, and require much more configuration and maintenance to use correctly (for example, "config specs" in ClearCase). I've had many instances of a co-worker changing an unrelated file and breaking what would ideally be an isolated line of development. What are the advantages of these per-file version control systems? What problems do "whole-repository" version control systems have that per-file version control systems do not?

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• Convert HTML template (HTML Code) into an image using php library [on hold]

  - by user2727841

  I'm taking input from user through tiny mce editor which is actually html template (HTML Code) and i want to convert that html template (code) into an image using php libaray, How to do it? Is there any API (SDK) OR library for it? well I prefered API (SDK) OR library which actually convert html template (code) into an image... I've searched every where but didn't succeed, now can any one tell me any php library which convert html code into an image... Thanks in advance

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• Is my DFD accurate?

  - by Dummy Derp

  This is my first ever DFD that I made after my fair share of learning but I have no way of verifying whether it is correct or not. Although I have taken utmost care to make sure it is right, I may be wrong. Here is the scenario: Bebop Records is a mail-order company that distributes CDs and tapes at discount prices to record club members. When an order processing clerk receives an order form, he or she verifies that the sender is a club member by checking the Member file. If the sender is not a member, the clerk returns the order along with a membership application form. If the customer is a member, the clerk verifies the order item data by checking the Item file. Then the clerk enters the order data and saves it to the Daily Order file. The clerk also prints an invoice and shipping list for each order, which are forwarded to Order Fulfilment. And here is my diagram:

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• How to train yourself to avoid writing “clever” code?

  - by Dan Abramov

  Do you know that feeling when you just need to show off that new trick with Expressions or generalize three different procedures? This does not have to be on Architecture Astronaut scale and in fact may be helpful but I can't help but notice someone else would implement the same class or package in a more clear, straightforward (and sometimes boring) manner. I noticed I often design programs by oversolving the problem, sometimes deliberately and sometimes out of boredom. In either case, I usually honestly believe my solution is crystal clear and elegant, until I see evidence to the contrary but it's usually too late. There is also a part of me that prefers undocumented assumptions to code duplication, and cleverness to simplicity. What can I do to resist the urge to write “cleverish” code and when should the bell ring that I am Doing It Wrong? The problem is getting even more pushing as I'm now working with a team of experienced developers, and sometimes my attempts at writing smart code seem foolish even to myself after time dispels the illusion of elegance.

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• Why are data structures so important in interviews?

  - by Vamsi Emani

  I am a newbie into the corporate world recently graduated in computers. I am a java/groovy developer. I am a quick learner and I can learn new frameworks, APIs or even programming languages within considerably short amount of time. Albeit that, I must confess that I was not so strong in data structures when I graduated out of college. Through out the campus placements during my graduation, I've witnessed that most of the biggie tech companies like Amazon, Microsoft etc focused mainly on data structures. It appears as if data structures is the only thing that they expect from a graduate. Adding to this, I see that there is this general perspective that a good programmer is necessarily a one with good knowledge about data structures. To be honest, I felt bad about that. I write good code. I follow standard design patterns of coding, I do use data structures but at the superficial level as in java exposed APIs like ArrayLists, LinkedLists etc. But the companies usually focused on the intricate aspects of Data Structures like pointer based memory manipulation and time complexities. Probably because of my java-ish background, Back then, I understood code efficiency and logic only when talked in terms of Object Oriented Programming like Objects, instances, etc but I never drilled down into the level of bits and bytes. I did not want people to look down upon me for this knowledge deficit of mine in Data Structures. So really why all this emphasis on Data Structures? Does, Not having knowledge in Data Structures really effect one's career in programming? Or is the knowledge in this subject really a sufficient basis to differentiate a good and a bad programmer?

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• Do you have any “Family Feud” style questions and answers for a game for high school students?

  - by Ben Jakuben

  I am gathering questions and responses in math, science, and technology for a "Family Feud" style game for high school students. I am having trouble finding and thinking of questions, especially in the technology realm. Technology (programming or general tech) questions are preferred. If you have never seen the game show, "Family Feud" involves two teams trying to guess the most popular responses to questions asked to a group of 100 respondents. The team must guess all the popular responses to get the points for the question. For example, if the question is, "What are the major tags in HTML 4.0?", the responses might be: P (64 votes) DIV (16 votes) TABLE (8 votes) BLINK (4 votes)

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• Does it matter to you that a software is "available source" but not "open source"

  - by ccpod

  You probably know the list of open source licenses officially approved by the OSI. Most notably I guess would be the GPL, MIT, [insert your favorite license here]. I recently ran into a project which although was open source (the creator made all source code available), was not officially open source under one of those official licenses. It released the source, but made no promise to release the source in the future. It allowed modification suggestions, but made no promises to accept patches and disallowed external distribution of externally-patched versions. It allowed the use of the software in commercial or paid projects, but disallowed the sale of the software itself. I suppose it could be called "available source" not open source as we like to think of it. I can see why the management team of a company wouldn't want to do business with this software. They can't fork it, they can't sell it, they can't create their own version of the software and distribute it or sell it. But would it matter to you as part of a software engineering team who's just using this software? I can still get my work done with it, I can use it in a project for which I'm paid (but I can't sell the software itself, which I'm not in the business of doing anyway), and I can make changes to the code to make it behave differently for my needs (but I can't make those modifications public), and if I do want those modifications officially made available to others, the approval is up to the project itself and they choose whether to incorporate them in an official release or not. So we know that a company that wants to base its business on this "available source" software can't do that, but as someone from the software engineering team, would those differences matter to you or do they seem less relevant? Curious what others think of this.

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• How can Google publish Dalvik as Java-language compatible since Java is a trademark?

  - by Bruno Chagas

  According to this thread Java and JVM license You can write a compiler that implements the Java Language Specification or write a JVM that implements the Java Virtual Machine specification, but when you officially want to call it "Java", you have to prove it is compatible by passing the tests of the TCK (technology compatibility kit) and pay for a license from Oracle. So, how can Google (or any other java implementation for that matter) claims that Dalvik is a Java virtual machine?

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• How does dependecy injection increase coupling?

  - by B?????

  On the Wikipedia page on dependency injection, the disadvantages section tells us this: Dependency injection increases coupling by requiring the user of a subsystem to provide for the needs of that subsystem. with a link to an article against dependency injection. Dependency injection makes a class use the interface instead of the concrete implementation. That should result in decreased coupling, no? What am I missing? How is dependency injection increasing coupling between classes?

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• Nuggets of wisdom?

  - by Bill Karwin

  There are many quotes from famous computer scientists that have become the wisdom that guides our profession. For example: "Premature optimization is the root of all evil in programming." Donald Knuth (citing Hoare's Dictum) "Everyone knows that debugging is twice as hard as writing a program in the first place. So if you're as clever as you can be when you write it, how will you ever debug it?" Brian Kernighan And so on. My question is, what are your favorite words of wisdom about programming from someone who is not famous? Was it a friend, a coworker, or a teacher, or a family member? For example, a technical writer friend of mine said: "You can't get the right answers unless you ask the right questions." Thanks for all the contributions! The answer I selected was (a) specifically coding-related, and (b) stated by someone who is not technically famous (though he has a popular blog and a podcast and runs StackOverflow). I.e. he's no Bill Gates or Yogi Berra.

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• career development: build release engineer or .net developer [closed]

  - by runner

  I have been working as .net developer for many years. Recently I got two offers: Continue work as .net developer on a SAAS product. Job duty is to add new features and fix issues, similar to what i have been doing these years. Become a Software configuration management and build engineer, in charge of product build, automation and release. Require some script coding, but not much. For the career development. which one should I choose? thanks.

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• Need reccomendation for transferring ASP.NET MVC skills to PHP

  - by Tuck

  I am looking to translate my skills in .NET to PHP - specifically in regards to ASP.NET MVC. At work I am currently using .NET MVC 2.0 on a variety of projects and thoroughly enjoy the platform. Specifically I enjoy the very minimal configuration required to get a project up and running (just create the project, define routes, and start coding), as well as the ability for controller actions to return different items (i.e. ActionResult, JsonResult). Another piece I really like is the way the view/model interaction can be handled. For example I like being able to call return View(model) and having a view page (.aspx) load and having the full model object available to the view, regardless of the model type. I'm looking for a PHP implementation of MVC that is the most similiar to what I am already familiar with. I don't anything apart from the MVC functionality. I've looked at Zend, Symfony, CodeIgniter, etc. and, while they look like they'll be fun to play with in the future, they provide much more functionality than I need. I'd prefer to write my own DAL,form helpers, delegate handlers,authentication/ACL pieces, etc. In short, I just need something to handle the routing and view interactions and will worry about the model implementation myself. Can someone please point me to some lightweight code that accomplishes or comes close to accomplishing my objectives above. Or, can someone identify just the portions of a larger framework that do the same (again, I'm not currently interested in implementing something on a big framework, just the MVC portion and want to implement the model portion myself as much as possible). Thanks in advance...

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• Will TSQL become useless because of new ORMs? [closed]

  - by Saeed Neamati

  By introducing LINQ to SQL, I found myself and my .NET developer colleagues gradually moving from TSQL to C# to create queries on the database. Entity Framework made that shift almost permanent. Now it's nearly 2 years that I use LINQ to SQL and LINQ to Entities and haven't used TSQL that much. Yesterday, a colleague encountered a problem (he had to create a SP) and we went to help him. But we all found that our TSQL knowledge was diminished for sure, and a simple SP that seemed trivial to us 2 or 3 years ago, was a challenge to be solved yesterday. Thus it came to my mind that while TSQL's life is attached to SQL Server, and logically as long as SQL Server lives and doesn't change it's SQL language, TSQL would also live, practically it might die, and soon very few people might know it. Am I right? Do existence of ORMs like Entity Framework threaten TSQL's life and usability?

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• What kind of things are easy in Haskell and hard in Scala, and vice versa?

  - by Daniel C. Sobral

  There has been some intermingling of Scala and Haskell communities, and I have noticed now and then people commenting on stuff that's supposed to be easy in Haskell and hard and Scala. Less often (maybe because I read Scala questions, not Haskell ones), I see someone mentioning that something in Scala is easier than in Haskell. So. I'd like to know from people who are knowledgeable in both what kind of things are easy in Haskell and hard in Scala, and, conversely, what kind of things are easy in Scala and hard in Haskell.

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• Finding a problem in some task [closed]

  - by nagisa

  Recently I competed in nation wide programming contest finals. Not unexpectedly all problems were algorithmic. I lost (40 points out of 600. Winner got ~300). I know why I lost very well - I don't know how to find actual problem in those obfuscated tasks which are life-blood of every competition. I think that being self-taught and not well versed in algorithms got me too. As side effect of learning things myself I know how to search for information, however all I could find are couple questions about learning algorithms. For now I put Python Algorithms: Mastering Basic Algorithms in the Python Language and Analysis of Algorithms which I found in those questions to my "to read" list. That leaves my first problem of not knowing how to find a problem unsolved. Will that ability come with learning algorithms? Or does it need some special attention? Any suggestions are welcomed.

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• Wrong encoding in DataReceivedEventArgs

  - by user2102508

  I start cmd.exe process and redirect stdin to pass script to it and redirect stdout and stderr to read cmd's output. Here is the code of my DataReceivedEventHandler: (o, a) => { if(!String.IsNullOrEmpty(a.Data)) { bw.Write(a.Data.ToUTF8()); bw.Write((byte)'\n'); } } In the code bw is instance of BinaryWriter, ToUTF8 is string extension method, that converts a string to UTF8 encoded byte array. When I use this code in a separate process it works well, however when I use this code as a shared library inside some other process a.Data doesn't contain valid localized characters (like russian characters for example). So how should I convert characters? How to get cmd's OEM encoding? Why does the code works well in a separate process and doesn't work as a shared library inside some other process?

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• When to do code reviews when doing continuous integration?

  - by SpecialEd

  We are trying to switch to a continuous integration environment but are not sure when to do code reviews. From what I've read of continuous integration, we should be attempting to check in code as often as multiple times a day. I assume, this even means for features that are not yet complete. So the question is, when do we do the code reviews? We can't do it before we check in the code, because that would slow down the process where we will not be able to do daily checkins, let alone multiple checkins per day. Also, if the code we are checking in merely compiles but is not feature complete, doing a code review then is pointless, as most code reviews are best done as the feature is finalized. Does this mean we should do code reviews when a feature is completed, but that unreviewed code will get into the repository?

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• Parsing scripts that use curly braces

  - by Keikoku

  To get an idea of what I'm doing, I am writing a python parser that will parse directx .x text files. The problem I have deals with how the files are formatted. Although I'm writing it in python, I'm looking for general algorithms for dealing with this sort of parsing. .x files define data using templates. The format of a template is template_name { [some_data] } The goal I have is to parse the file line-by-line and whenever I come across a template, I will deal with it accordingly. My initial approach was to check if a line contains an opening or closing brace. If it's an open brace, then I will check what the template name is. Now the catch here is that the open brace doesn't have to occur on the same line as the template name. It could just as well be template_name { [some_data] } So if I were to use my "open brace exists" criteria, it won't work for any files that use the latter format. A lot of languages also use curly braces (though I'm not sure when people would be parsing the scripts themselves), so I was wondering if anyone knows how to accurately get the template name (or in some other languages, it could just as well be a function name, though there aren't any keywords to look for)

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• Which adjustable ergonomic keyboard do you recommend to a fellow coder and why?

  - by thefonso

  My beloved Goldtouch has died (a moment of silence)....the hinge at the middle which allows you to adjust the board finally broke and the manufacturer does not do repairs for free. I'd have to buy a new board. So...since this I'm in the market for a new keyboard and I'm looking for an adjustable one comparable or better to the Goldentouch. I post this question to all you coders out there. Which adjustable ergo keyboard do you recommend to a fellow coder and why?

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• Taglist: Failed to generate tags for macvim [migrated]

  - by Mohit Jain

  When ever I am trying to open a file in my rails project using macVim. I am geting an error Taglist: Failed to generate tags for ....... But it works perfectly in terminal vim. Why its happening? I am a new bie and just installed everything using this dotvim repo. I installed ctags using these commands that I got from this git $ ctags -R --exclude=.git --exclude=log * ctags: illegal option -- R usage: ctags [-BFadtuwvx] [-f tagsfile] file ... #you need to get new ctags, i recommend homebrew but anything will work $ brew install ctags #alias ctags if you used homebrew $ alias ctags="`brew --prefix`/bin/ctags" #try again! ctags -R --exclude=.git --exclude=log * which ctags on terminal returning, same if i do from vim or gvim using ! (bang): /usr/bin/ctags Can anyone help me?

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