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  • How to extend the Eclipse Java Editor to add coloured overlays

    - by Gavin Clarke
    I have an idea for an Eclipse plugin which I've been toying with. I need to be able to extend the Eclipse Java Editor component and add coloured overlays to the code based on pluggable external metrics. Unfortunately there doesn't appear to be any kind of syntax highlighting extension point. Does anyone know how I might be able to extend the exisitng eclipse Java Editor to add custom highlighting rules? Bear in mind I'm new to Eclipse plugin programming so please give as much detail as possible.

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  • belongs_to with multiple models

    - by julie p
    Hi there! I am a Rails noob and have a question. I have a feed aggregator that is organized by this general concept: Feed Category (books, electronics, etc) Feed Site Section (home page, books page, etc) Feed (the feed itself) Feed Entry So: class Category < ActiveRecord::Base has_many :feeds has_many :feed_entries, :through => :feeds, :limit => 5 validates_presence_of :name attr_accessible :name, :id end class Section < ActiveRecord::Base has_many :feeds has_many :feed_entries, :through => :feeds, :limit => 5 attr_accessible :name, :id end class Feed < ActiveRecord::Base belongs_to :categories belongs_to :sections has_many :feed_entries validates_presence_of :name, :feed_url attr_accessible :name, :feed_url, :category_id, :section_id end class FeedEntry < ActiveRecord::Base belongs_to :feed belongs_to :category belongs_to :section validates_presence_of :title, :url end Make sense? Now, in my index page, I want to basically say... If you are in the Category Books, on the Home Page Section, give me the feed entries grouped by Feed... In my controller: def index @section = Section.find_by_name("Home Page") @books = Category.find_by_name("Books") end In my view: <%= render :partial => 'feed_list', :locals => {:feed_group => @books.feeds} -%> This partial will spit out the markup for each feed entry in the @books collection of Feeds. Now what I need to do is somehow combine the @books with the @section... I tried this: <%= render :partial => 'feed_list', :locals => {:feed_group => @books.feeds(:section_id => @section.id)} -%> But it isn't limiting by the section ID. I've confirmed the section ID by using the same code in the console... Make sense? Any advice? Thanks!

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  • Difference Between Property And Function.

    - by Asim Sajjad
    Which one is better to use when it come to return value for example public int EmployeeAge { get{return intEmployeeAge}; } And public int EmployeeAge() { return intEmployeeAge; } Which one is better and why? And what is best programming practice to use when we have secnario like above ?

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  • Integrating legacy Ajax script in CakePHP

    - by octavian
    Hi, I have a legacy script that I would like to integrate in a cakephp app. The script makes use of $_POST and such and since I'm quite a noob I would need some help for the integration. Here is how the script looks like: THE JAVASCRIPT: prototype.js builder.js (these two are from the prototype fw) lib.js (makes a ajax requests to remote.php) THE PHP remote.php (contains FastJSON class and $_POST vars) if ($_POST['cmd'] == 'SAVETEAM' && $_POST['info']) { $INFO = json_decode(str_replace('\"', '"', $_POST['info'])); $nr = 1; $SORT = array($INFO->GK, $INFO->DEF, $INFO->MID, $INFO->FOR, $INFO->RZ); foreach ($SORT as $STD) foreach ($STD as $v) mysql_query("UPDATE players_teams SET fieldposition = ".$nr++." WHERE player_id = {$v->player_id} AND team_id = {$v->team_id}") or die(mysql_error()); // CAPTAION mysql_query("UPDATE `teams` SET captain = '{$_POST['captain']}' WHERE `user_id` = {$_POST['userid']}") or die(mysql_error()); } transfers.php (containts the form that uses the javascript and link to the JS) I have really no idea how to structure the files and calls in cakephp. Currently I have "Undefined index: cmd [APP/vendors/remote.php, line 230]" errors since I use $_POST['cmd'] (I placed remote.php in Vendors and included it, the JS was just included old fashion way, as a link and appears in the source code). How can I make this work? I'm sorry but I'm not familiar with AJAX and Cake... If you want a full look at the code, here it is: http://octavian.be/thecode.zip Thank you for reading and helping me out.

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  • Best Way to Include Debug Code?

    - by stormin986
    I am programming Android applications, and the best way here may or may not be the same as Java in general. I simply want to be able to set a debug flag that will only execute certain portions of code when it's set to true––equiv to C++ setting a preprocessor #define DEBUG and using #ifdef DEBUG. Is there an accepted or best way to accomplish this in Java? Right now I'm just going to set a variable in my Application object, but I don't imagine this is the best way.

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  • List<object>.RemoveAll - How to create an appropriate Predicate

    - by CJM
    This is a bit of noob question - I'm still fairly new to C# and generics and completely new to predicates, delegates and lamda expressions... I have a class 'Enquiries' which contains a generic list of another class called 'Vehicles'. I'm building up the code to add/edit/delete Vehicles from the parent Enquiry. And at the moment, I'm specifically looking at deletions. From what I've read so far, it appears that I can use Vehicles.RemoveAll() to delete an item with a particular VehicleID or all items with a particular EnquiryID. My problem is understanding how to feed .RemoveAll the right predicate - the examples I have seen are too simplistic (or perhaps I am too simplistic given my lack of knowledge of predicates, delegates and lambda expressions). So if I had a List<Of Vehicle> Vehicles where each Vehicle had an EnquiryID, how would I use Vehicles.RemoveAll() to remove all vehicles for a given EnquiryID? I understand there are several approaches to this so I'd be keen to hear the differences between approaches - as much as I need to get something working, this is also a learning exercise. As an supplementary question, is a Generic list the best repository for these objects? My first inclination was towards a Collection, but it appears I am out of date. Certainly Generics seem to be preferred, but I'm curious as to other alternatives. Thanks

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  • Is there a future for Powerpoint VBA/VSTO?

    - by Sam Russo
    Does anyone know what the future holds for VBA/VSTO programming in Powerpoint? I've been working on a Office automation project and find it frustrating to work with Powerpoint in particular since it seems to be one level below VBA support found in Excel or Word. It feels like MS is trying to phase out support for VBA in PPT since they dropped macro recording in version 2007 and the object model lacks some key features support.

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  • Computer graphics research

    - by Shrey
    What are the best known labs for research in CG especially raytracing/rendering? I want to pursue Masters/PhD in this field and though I have been working on projects such as raytracers, it is all self-driven. What would be a good place to start, perhaps as a research intern? Also, what kind of background is expected for admissions in these programs, in terms of programming skills, formal education etc.?

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  • SourceForge-like site but not SourceForge...

    - by AndrejaKo
    This may be off-topic, but I decided to ask it here anyway, because it's very related to programming. I'm looking for a site which will host a free software project for free, offer SVN and Hg access, bug tracking &co, space for a blog... Any tips? Also, should this be community wiki?

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  • What happens with TCP packets between 2 Socket.BeginReceive Call??

    - by Rodrigo
    Hi, i have a doubt about Socket Programming, i am developing a TCP packets Sniffer, i am using Socket.BeginAccept, Socket.BeginReceive to capture every packet, but when a packet is received i have to process something, it is a fast operation, but would take some milliseconds, and then call the BeginReceive again. My question is, what would happen if some packets are sent while i am processing, and havent called BeginReceive??...are lost?...are buffered internally?...is there a limit?... Thanks in advance.

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  • Trap error or 'Resume Next'

    - by Craig Johnston
    I realise this is an older programming environment, but I have to clean up some VB6 code and I am finding that most of it uses: Resume Next What is the general consensus about the use of Resume Next? Surely, if there is an error, you would want the app to stop what it was doing, rollback any data changes, and inform the user of the error, rather than just resuming. When is it good idea to use Resume?

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  • Removing the transparency from image while keeping the actual image

    - by KPL
    Hello people, I have three images,and , they are not square or rectangular in shape. They are just like face of anyone. So, basically, my images are in the size 196x196 or anything like that, but complete square or rectangle with the face in the middle and transperant background in the rest of the portion. Now, I want to remove the transperant background too and just keep the faces. Don't know if this is possible and mind you, this isn't a programming question.

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  • Using Powershell to set user permissions in Reporting Services

    - by slugster
    I'm asking this because i'm a n00b when it comes to Powershell. How do i use Powershell to add a particular domain user or group to a specific reporting role in SSRS2005 (say the Content Manager or Browser role)? Is there a simple one or two line script to achieve it? Thanks! Note: this is definately programming related (not server admin), but i am also going to ask this on SF.

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  • Questions on about TDD or unit testing in ASP.NET MVC

    - by Diego
    I've been searching on how to do Unit testing and find thats is quite easy, but, what I want to know is, In a asp.net mvc application, what should be REALLY important to test and which methods you guys use? I just can't find a clear answer on about WHAT TO REALLY TEST when programming unit tests. I just don't want to make unecessary tests and loose developement time doing overkill tests.

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  • Object Oriented Database - why most of the companies do not use them

    - by GigaPr
    Hi, I am pretty new to programming(just finished University). I have been thought in the last 4 years about Object Oriented development and the numerous advantages of this approach. My question is Isn't it easier to use a pure Object Oriented database in development applications? Why Object Oriented database are not as much diffuse as relational? From my point of view makes sense to use OO database, the latter will avoid the numerous construction necessary for the mapping of complex objects on the tables.

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  • How to do Map this or Add to calendar like gmail?

    - by dhaval
    How would gmail have implemented this feature? What technologies go behind enabling such features? Any pointers or programming resource would be useful? It could be language neutral or specific to any language? Do you think they do something with antlr etc., to achieve the above?

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  • Are open source projects considered community service?

    - by Gio Borje
    I'm currently a junior in high school and I've been slacking off on my community service to develop websites and do some personal projects in C#. Currently, I'm developing an web-based IM-Chat through node.js (the server-side Javascript). If I were to post this or other projects on Github or on Google Code, could this be considered community service?—to the programming community?

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  • arduino emacs development

    - by aaa
    hi. I would like to use emacs as a development environment for arduino programming. If you use emacs to program arduino, can you share some tips or links which you find useful. Is there official (or de facto) emacs mode? Also, am I going to miss something which is in arduino IDE if I use emacs exclusively? thank you .

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  • transactions and delete using fluent nhibernate

    - by Will I Am
    I am starting to play with (Fluent) nHibernate and I am wondering if someone can help with the following. I'm sure it's a total noob question. I want to do: delete from TABX where name = 'abc' where table TABX is defined as: ID int name varchar(32) ... I build the code based on internet samples: using (ITransaction transaction = session.BeginTransaction()) { IQuery query = session.CreateQuery("FROM TABX WHERE name = :uid") .SetString("uid", "abc"); session.Delete(query.List<Person>()[0]); transaction.Commit(); } but alas, it's generating two queries (one select and one delete). I want to do this in a single statement, as in my original SQL. What is the correct way of doing this? Also, I noticed that in most samples on the internet, people tend to always wrap all queries in transactions. Why is that? If I'm only running a single statement, that seems an overkill. Do people tend to just mindlessly cut and paste, or is there a reason beyond that? For example, in my query above, if I do manage it to get it from two queries down to one, i should be able to remove the begin/commit transaction, no? if it matters, I'm using PostgreSQL for experimenting.

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  • Ajax In Firefox Plugin

    - by Jishnu
    Hi, Is there any way to send Ajax request to server from Firefox plugin? If yes how? If no, how do we have client server communication in Firefox plugin? I want to get some json data from server and manipulate dom object according to the client input. I am pretty beginner in plugin programming Regards, Jishnu

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  • Advice and resources for Apple iOS 4 development

    - by mlambie
    I'm looking for resources, screencasts, books, courses, sites and the like to assist with learning Objective-C with the intention of developing applications for Apple's iOS 4. My development team has access to Apple's development program, and is largely coming from a similar background: they're Comp Sci graduates that have experience with Ruby and web languages, but haven't written any C since university. Considering Apple's announcement regarding limited programming language support for developers, what's the current best avenue for learning Objective-C with the desire for developing iPad and iPhone applications?

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  • Basis for claim that the number of bugs per line of code is constant regardless of the language used

    - by Matt R
    I've heard people say (although I can't recall who in particular) that the number of bugs per line of code is roughly constant regardless of what language is used. What is the research that backs this up? Edited to add: I don't have access to it, but apparently the authors of this paper "asked the question whether the number of bugs per lines of code (LOC) is the same for programs written in different programming languages or not."

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