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• Using a :default for file names on include templates in SMARTY 3 [closed]

  - by Yohan Leafheart

  Hello everyone, Although I don't think the question was as good as it could be, let me try to explain better here. I have a site using SMARTY 3 as the template system. I have a template structure similar to the below one: /templates/place1/inner_a.tpl /templates/place1/inner_b.tpl /templates/place2/inner_b.tpl /templates/place2/inner_c.tpl /templates/default/inner_a.tpl /templates/default/inner_b.tpl /templates/default/inner_c.tpl These are getting included on the parent template using {include file="{$temp_folder}/{$inner_template}"} So far great. What I wanted to do is having a default for, in the case that the file "{$temp_folder}/{$inner_template}" does not exists, it uses the equivalent file at "default/{$inner_template}". i.e. If I do {include file="place1/inner_c.tpl"}, since that file does not exists it in fact includes "default/inner_c.tpl" Is it possible?

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• When are Getters and Setters Justified

  - by Winston Ewert

  Getters and setters are often criticized as being not proper OO. On the other hand most OO code I've seen has extensive getters and setters. When are getters and setters justified? Do you try to avoid using them? Are they overused in general? If your favorite language has properties (mine does) then such things are also considered getters and setters for this question. They are same thing from an OO methodology perspective. They just have nicer syntax. Sources for Getter/Setter Criticism (some taken from comments to give them better visibility): http://www.javaworld.com/javaworld/jw-09-2003/jw-0905-toolbox.html http://typicalprogrammer.com/?p=23 http://c2.com/cgi/wiki?AccessorsAreEvil http://www.darronschall.com/weblog/2005/03/no-brain-getter-and-setters.cfm http://www.adam-bien.com/roller/abien/entry/encapsulation_violation_with_getters_and To state the criticism simply: Getters and Setters allow you to manipulate the internal state of objects from outside of the object. This violates encapsulation. Only the object itself should care about its internal state. And an example Procedural version of code. struct Fridge { int cheese; } void go_shopping(Fridge fridge) { fridge.cheese += 5; } Mutator version of code: class Fridge { int cheese; void set_cheese(int _cheese) { cheese = _cheese; } int get_cheese() { return cheese; } } void go_shopping(Fridge fridge) { fridge.set_cheese(fridge.get_cheese() + 5); } The getters and setters made the code much more complicated without affording proper encapsulation. Because the internal state is accessible to other objects we don't gain a whole lot by adding these getters and setters. The question has been previously discussed on Stack Overflow: http://stackoverflow.com/questions/565095/java-are-getters-and-setters-evil http://stackoverflow.com/questions/996179

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• Is Information Technology really Engineering?

  - by RPK

  While travelling I met a mathematician who was sitting near me. In a discussion he said: "...there is nothing like engineering in IT or rather programming". A true engineering is what Architecture is, what Electrical and Mechanical is. It made me think and I was puzzled. A percent of my brain agreed also because in Indian Army, there is no subject like Computer Engineering in the Engineering Corps. They don't consider programming as engineering. This is what I heard few years back, I don't know what Indian Army thinks now. What are your views?

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• Constraint-based expert systems design and development [on hold]

  - by Alex B.

  I would appreciate some recommendations & resources on design and development of expert systems, in particular, knowledge-based & constraint-based (not recommendation) systems. Ideally, your answers should consider the perspective (context) of using a SaaS business model and open source rules engine. How would you advise to address performance, scalability and other architectural criteria? Any other considerations on undertaking such project will be appreciated. Thanks much in advance!

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• Executing Shell Commands - PHP or Python?

  - by chadpeppers

  I know basically two languages: Python and PHP. I am primarily a Drupal developer. I have a great idea in creating a command line program that will help some of the mundane tasks and bring my efficiency up quite a bit. The concept is that of a complete console program, almost like the days when I learned C++ using stdin/out. I want to use this came concept but for this program. I am going to be executing shell commands (mainly drush commands, if you are familiar with drush its drupals way of doing tasks like installing drupal, clearing cache, and other things). I am also wanting to do a database and save/execute through multiple objects and site profiles. My general question is this. Which language would be better suited to handle command line code? Drupal is written in PHP so I am leaned more towards that,but I know python seems to handle console programming a bit easier. Any help would be great!

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• What is the difference between WCF service and a simple Web service in developing using .NET Framework?

  - by Steve Johnson

  My questions are: What is the difference between WCF service and a simple Web service in .NET Framework? What a WCF Service can do which a .NET Web service cant? In other words, what are the limitation of .NET Web services which were overcome in WCF services? I understand that WCF are REST based and .NET web services are SOAP based. But I need to know more than that. How a developer will make a design decision whether to developer a Web service or a WCF service?

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• Visual Studio search feature does not seem to be searching for text in CSS files [migrated]

  - by aspdotnetuser

  I noticed that when using Visual Studio's 'Find in files' search feature, it does not appear to search/find text in CSS files even though the text does exist. I can't find anything on the net regarding this issue and cannot determine even if Visual Studio allows you to search for text within CSS files. Hopefully someone can shed some light on this; Is it supposed to allow you to do this? If so, what reasons would explain why this is not working?

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• One page using querystring or many folders and pages?

  - by ClarkeyBoy

  I have an application where I have the 'core' code in one folder for which there is a virtual directory in the root, such that I can include any core files using /myApp/core/bla.asp. I then have two folders outside of this with a default.asp which currently use the querystring to define what page should be displayed. One page is for general users, the other will only be accessible to users who have permission to manage users / usergroups / permissions. The core code checks the querystring and then checks the permissions for that user. An example of this as it is now is default.asp?action=view&viewtype=list&objectid=server. I am not worried about SEO as this is an internal app and uses Windows Auth. My question is, is it better the way it is now or would it be better to have something like the following: /server/view/list/ /server/view/?id=123 /server/create/ /server/edit/?id=123 /server/remove/?id=123 In the above folders I would have a home page which defines all the variables which are currently determined by the querystring - in /server/create/ for example, I would define the action as 'create', object name as 'server' and so on. In terms of future development, I really have no idea which method would be best. I think the 2nd method would be best in terms of following what page does what but this is such a huge change to make at this stage that I would really like some opinions, preferably based on experience. PS Sorry if the tags are wrong - I am new to this forum and thought this was a bit too much of a discussion for StackOverflow as that is very much right / wrong answer based. I got the idea SE is more discussion based.

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• Books tailored for Java to C/C++ development?

  - by soulesschild

  Does anyone know of good books that are tailored for Java developers looking to transition to C/C++? I have the classic K&R Ansi C book but was looking for something more tailored to those that learned Java first, such as having examples of similar code/functionality between Java and C/C++. I know there is this list, http://stackoverflow.com/questions/388242/the-definitive-c-book-guide-and-list, but was looking for books specifically written for Java developers. Thanks!

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• Career paths after web development?

  - by Mike

  I know this is open ended, but I'm just curious what you've done after your web development career, or if you've stayed loyal. I have a feeling/read/heard that web development salaries top out at a certain amount.. even after 10-15 years of experience. Reason I ask is that I graduated last summer with a BS in Chemical Engineering.. but have not been able to find a job in California. I've been web designing/developing since high school and thought that I should start a career, even if its not related to my major and not lose more time. Even though I'd really like to have an engineering career, I don't think that will happen. Do you guys have any suggestions or experiences for choices after/ways to enhance your career after several years in web development? Thanks! Update: Thanks for the responses guys! One more question: Is it likely to be accepted into a MS/PhD program if you've been out of uni for a couple years? Or with semi-related job experience? Would I be a bit of a misfit with a BS in ChemE studying CS/CompE for an MS?

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• How should I incorporate a hotfix back into a feature branch using gitflow?

  - by Mark Trapp

  I've started using gitflow for a project, and I have an outstanding feature branch as well as a newly created hotfix. Per the gitflow workflow, the hotfix gets applied to both the master and develop branches, but nothing is said or done about extant feature branches. Nevertheless, I'd like to incorporate the hotfix changes back into my feature branch, which as near as I can tell leaves three options: Don't incorporate the changes. If the changes were needed for the feature branch, it should've been part of the feature branch. Merge develop back into the feature branch. This seems to follow the gitflow workflow the best, but would cause out-of-order commits. Rebase the feature branch onto develop. This would preserve commit order but rebasing seems to be completely absent from the general gitflow workflow. What's the best practice here?

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• C++ Library API Design

  - by johannes

  I'm looking for a good resource for learning about good API design for C++ libraries, looking at shared objects/dlls etc. There are many resources on writing nice APIs, nice classes, templates and so on at source level, but barely anything about putting things together in shared libs and executables. Books like Large-Scale C++ Software Design by John Lakos are interesting but massively outdated. What I'm looking for is advice i.e. on handling templates. With templates in my API I often end up with library code in my executable (or other library) so if I fix a bug in there I can't simply roll out the new library but have to recompile and redistribute all clients of that code. (and yes, I know some solutions like trying to instantiate at least the most common versions inside the library etc.) I'm also looking for other caveats and things to mind for keeping binary compatibility while working on C++ libraries. Is there a good website or book on such things?

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• Splitting up a Rails/Ruby app onto multiple servers

  - by craig.kaminsky

  We recently moved a large application to two machines, both running the same codebase. I. Machine A Web server for public facing application Receives web hook call backs from our ESP Handles a few large, list-processing jobs (uploaded spreadsheets with data) II. Machine B Manages a massive set of (background) jobs but, primarily, focuses on building and assembling newsletters Runs all integration with our NetSuite platform Runs all system maintenance (read: DB) jobs To me, having these two apps running the same codebase (a large, monolithic Rails application) seems 'wrong'. I am wondering if anyone has advice on how to better break up the code for these two apps. While they both need the same DB and, ultimately, the same model code, Machine B has no need for Controllers and Views and it feels wasteful running a full-stack Rails app for its tasks. A couple things came to mind but I'm not sure if I'm trying to solve a problem that doesn't exist: Break the models out into a sub-module on git and include into both apps Build out the Mahcine B app in plain Ruby or a lighter framework like Sinatra (where I could use ActiveRecord with Sinatra in combo with a sub-module for the model folder). I'm new to this scenario and appreciate any and all feedback or direction! Thank you.

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• Is there any reason to use "plain old data" classes?

  - by Michael

  In legacy code I occasionally see classes that are nothing but wrappers for data. something like: class Bottle { int height; int diameter; Cap capType; getters/setters, maybe a constructor } My understanding of OO is that classes are structures for data and the methods of operating on that data. This seems to preclude objects of this type. To me they are nothing more than structs and kind of defeat the purpose of OO. I don't think it's necessarily evil, though it may be a code smell. Is there a case where such objects would be necessary? If this is used often, does it make the design suspect?

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• Does the LGPL allow me to do this?

  - by user1229892

  I am planning to develop a commercial software using a LGPL software. In the LGPL software that I am using some functions in a class are not fully implemented. I want to modify the LGPL code so that the class and not-implemented functions are made visible outside the dll by adding dllexport infront of class and by adding virtual keyword infront of function. Then I plan to implement those functions in my proprietary software. I am ready to distribute the modified LGPL code but not proprietary software that implements functions in the way I want. Does that violate LGPL terms and conditions?

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• Physical effects of long term keyboard use- what does the science say and what factors affect it?

  - by glenatron

  This question asks about the ergonomics of a particular keyboard for long programming hours, what I would like to know is about the ergonomics of using a keyboard in general. What are the most significant risks associated with it and how can they best be mitigated? Do the "ergonomic" keyboard designs make a difference and if so which design is most effective? If not do other factors such as wrist-rests, regular exercise or having a suitable height of chair or desk make a difference? Do you have any direct experience of problems deriving from keyboard use and if so how did you resolve them? Is there any good science on this and if so what does it indicate? Edited to add: Wikipedia suggests that there are no proven advantages to "ergonomic" keyboards, but their citation seems pretty old- is that still the current state of play?

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• How to make a legacy system time-zone sensitive?

  - by Jerry Dodge

  I need to implement time zones in a very large and old Delphi system, where there's a central SQL Server database and possibly hundreds of client installations around the world in different time zones. The application already interacts with the database by only using the date/time of the database server. So, all the time stamps saved in both the database and on the client machines are the date/time of the database server when it happened, never the time of the client machine. So, when a client is about to display the date/time of something (such as a transaction) which is coming from this database, it needs to show the date/time converted to the local time zone. This is where I get lost. I would naturally assume there should be something in SQL to recognize the time zone and convert a DateTime field dynamically. I'm not sure if such a thing exists though. If so, that would be perfect, but if not, I need to figure out another way. This Delphi system (multiple projects) utilizes the SQL Server database using ADO components, VCL data-aware controls, and QuickReports (using data sources). So, there's many places where the data goes directly from the database query to rendering on the screen, without any code to actually put this data on the screen. In the end, I need to know when and how should I get the properly converted time? What is the proper way to ensure that I handle Dates and Times correctly in a legacy application?

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• Am I too young to burn out?

  - by Steve McMesse

  I feel like I have burned out, even though I am only out of college for 5 years. For the first 3 years of my career, things were going awesome. I was never anything special in school, but I felt special at my company. Looking back, I could tell that I made all the right moves: I actively tried to improve myself daily. I made a point of helping anyone I could. I made a point (and read books about) being a good team member. I had fun. After 3 years in a row as being rated as a top employee, I converted that political capital into choosing to work on an interesting, glamorous project with only 2 developers: me and a highly respected senior technical leader. I worked HARD on that project, and it came out a huge success. High in quality, low in bugs, no delays, etc. The senior tech lead got a major promotion and a GIGANTIC bonus. I got nothing. I was so disappointed that I just stopped caring. Over the last year, I have just kind of floated. During my first 4 years I felt energized after a 10 hour day. Now I can barely be bothered to work 6 hours a day. Any advice? I don't even know what I'm asking. I am just hoping smart people see this and drop me a few pieces of wisdom.

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• Need help on implementing corporate network security solution and coming up with time lines to test it

  - by abc

  I have to come up with a proposal to implement corporate network security. Once I have done that I also have to come up with estimates on the time / money needed to test (QA) the implementation. What I need help with: What should I keep in mind while coming up with this proposal? I have already considered: Routers, Firewalls, VPN, Wireless, Server System, Web Apps etc. I know I am missing quite a lot. What else should I include? This the most challenging part I feel: How should I estimate the time needed for testing these security implementations? I guess I need to understand how can I test these security implementations first...right? Can you help me?

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• Why prefer a wildcard to a type discriminator in a Java API (Re: Effective Java)

  - by Michael Campbell

  In the generics section of Bloch's Effective Java (which handily is the "free" chapter available to all: http://java.sun.com/docs/books/effective/generics.pdf), he says: If a type parameter appears only once in a method declaration, replace it with a wildcard. (See page 31-33 of that pdf) The signature in question is: public static void swap(List<?> list, int i, int j) vs public static void swap(List<E> list, int i, int j) And then proceeds to use a static private "helper" function with an actual type parameter to perform the work. The helper function signature is EXACTLY that of the second option. Why is the wildcard preferable, since you need to NOT use a wildcard to get the work done anyway? I understand that in this case since he's modifying the List and you can't add to a collection with an unbounded wildcard, so why use it at all?

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• Which programming language for text editing?

  - by Ali

  I need a programming language for text editing and processing (replace, formatting, regex, string comparison, word processing, text analysis, etc). Which programming language is more powerful and has more functions for this purpose? Since I work PHP for my web projects, I currently use PHP; but the fact is that PHP is a scripting language for web applications, my current project is offline. I am curious if other programming languages such as Perl, Python, C, C++, Java, etc have more functionality for this purpose, and worth of shifting the project?

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• Development environment to manage multiple Oracle databases

  - by jkohlhepp

  I am in an enterprise environment where we have applications that need to run against multiple Oracle databases. Developers may need to manage multiple vintages of these databases to support different test data or diagnose bugs against different versions of the code. Right now, we have a limited set of test environments set up on "real" Oracle servers within the data center. We juggle these among development and QA groups and there is a lot of conflicts and inefficiencies that arise because of it. I am taking a look at Oracle Express Edition which would allow me to spin up a local Oracle database. This is similar to the workflow I most often see with SQL Server. Devs work on their location machine until they are ready to integration and then they push their DB changes to integration / QA environments. However, from what I read it seems that Oracle XE only supports one database instance at a time. So if I have an application that utilizes two different databases, I can't have both of them running on my local machine. Is that correct? Does Oracle Standard or Personal editions get around this limitation? If I had one of those installed locally, how difficult would it be to get multiple databases working on the same development machine? How do dev shops handle developing against Oracle where they need to be using several different Oracle instances for their applications?

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• Self Documenting Code Vs. Commented Code

  - by Phill

  I had a search but didn't find what I was looking for, please feel free to link me if this question has already being asked. Earlier this month this post was made: http://net.tutsplus.com/tutorials/php/why-youre-a-bad-php-programmer/ Basically to sum it up, you're a bad programmer if you don't write comments. My personal opinion is that code should be descriptive and mostly not require comment's unless the code cannot be self describing. In the example given // Get the extension off the image filename $pieces = explode('.', $image_name); $extension = array_pop($pieces); The author said this code should be given a comment, my personal opinion is the code should be a function call that is descriptive: $extension = GetFileExtension($image_filename); However in the comments someone actually made just that suggestion: http://net.tutsplus.com/tutorials/php/why-youre-a-bad-php-programmer/comment-page-2/#comment-357130 The author responded by saying the commenter was "one of those people", i.e, a bad programmer. What are everyone elses views on Self Describing Code vs Commenting Code?

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• Ways of Gathering Event Information From the Internet

  - by Ciwan

  What are the best ways of gathering information on events (any type) from the internet ? Keeping in mind that different websites will present information in different ways. I was thinking 'smart' web crawlers, but that can turn out to be extremely challenging, simply because of the hugely varied ways that different sites present their information. Then I was thinking of sifting through the official twitter feeds of organisations, people with knowledge of events .. etc and look for the event hash tag, grab the tweet and dissect it to grab the relevant information about the event. Information I am interested in gathering is: Date and Time of Event, Address where Event is being held, and any Celebrities (or any famous people) attending the event (if any). The reason to ask here is my hope that experienced folk will open my eyes to things I've missed, which I am sure I have.

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• Design for a plugin based application

  - by Varun Naik

  I am working on application, details of which I cannot discuss here. We have core framework and the rest is designed as plug in. In the core framework we have a domain object. This domain object is updated by the plugins. I have defined an interface in which I have function as DomainObject doProcessing(DomainObject object) My intention here is I pass the domain object, the plug in will update it and return it. This updated object is then passed again to different plugin to be updated. I am not sure if this is a good approach. I don't like passing the DomainObject to plugin. Is there a better way I can achieve this? Should I just request data from plugin and update the domain object myself?

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