similar to: ruby equivalent of isset()

I figured I pose this to the list and see if any one can build a better mousetrap. The problem: 1. Store hierarchical data in a database, but without knowing the hierarchy beforehand. 2. Allow the user to define there own hierarchy, and allow the system to support multiple hierarchies. Call it a cataloging system, we have an object and we want to add data about that object to the system. Now

I tried to keep track of the number of access to a specific controller. I declared ''@@mycount = 0'' in the controller class. The methods in the controller will increment the @@mycount (@@mycount = @@mycount + 1) and print the value to the html page and show in the browser. The value is always 1, no matter how many times I access the controller and its action(s). Is this

This isn''t Rails or Ruby related, but I just need some advice and thought I''d ask the bright individuals here. I want to start my own blog but I''m not sure where to begin. I don''t want to get a blogger account because I want to have my own domain. Blogger also doesn''t have many features. My hosting service is 1AND1 so it supports php, cgi and mysql.

Hello, I just started playing with RubyOnRails. It is indeed fascinating! I have a question about using rails models to connect to backend Java (i.e. EJBs) instead of database. Any pointers will be appreciated. Thanks and Regards, Khaled -- Posted via http://www.ruby-forum.com/.

I''ve looked for DIFF tools for OSX but haven''t found anything good yet. Tried guiffy (http://www.guiffy.com) but it''s very slow and the folder comparison doesn''t indicate a change until you drill down to the level with the difference which kinda defeats the purpose. I''m missing TortoiseSVN and the diff tool that comes with it. Any suggestions for

Hi there, Is there a neat and easy way to implement pagination with letters rather than numbers eg : A B C D ... Z Rob

> If we are going to change how we name variables, I very much want them to > not collide with either type names or function names. My suggestion would be > "lower_case" names. > > This also happens to be the vastly most common pattern across all C++ coding > styles and C-based language coding styles I have seen. STL has "lower_case" functions, and exposes

Ok, so this is kinda out of the blue... but I''ve been looking at Google Base and thinking that it''s got some really good ideas in it. Especially the way you can create your own "type" of item with its own custom attributes, like date range, location, number, text, etc. Kind of like defining a database with a GUI, but not exactly. It seems really interesting to me, from

I am checking the file size of an uploaded file and storing it in a filesize column. It will work just fine when the user uploads any files other than images (jpg,png,gif). Word, Excel, Powerpoint, .zip and more all work fine. This is my model asset.rb that handles the file upload. def newfile=(newfile_field) self.filename = base_part_of(newfile_field.original_filename) self.filetype

Hi, I''m a little confused about sessions. I have two objects, object "Apple" and object "Banana". These two objects have an N:M relationship. What I am doing is listing All of the Banana objects that are associated with a single Apple, then below that listing all of the Banana objects not associated with that same Apple. The user is then allowed to change the

Can I get some opinions on which free DB to use with rails for a virtual server that will eventually be doing lots of heavy database lifting? Not a lot of heavy duty querying per se. Think multiple simultaneous forums and blog sites and the like. I know each of the different DB possibilities such as MySQL and PostgreSQL has plus points and minus points. I''m particularly interested

Dear all, I don't know the historical reason why the char '_' was defined in the R language grammar as a synonyme of the assignment <-, anyway the R documentation dosen't recommand its usage. Well, this is a real "incompatibility issue" each time we need to interface R with other language/systems, notably with database systems. Recall that, in perhaps all

I can''t think of a good reason, other than it''s legacy code which hasn''t gotten around to being changed to RoR. http://rubyonrails.org/?=PHPE9568F36-D428-11d2-A769-00AA001ACF42 http://37signals.com/?=PHPE9568F36-D428-11d2-A769-00AA001ACF42 http://basecamphq.com/?=PHPE9568F36-D428-11d2-A769-00AA001ACF42 http://backpackit.com/?=PHPE9568F36-D428-11d2-A769-00AA001ACF42

I''m using Ajax.Updater to update a select element, and have just discovered that IE doesn''t like having its innerHTML set. I figure instead of a bunch of option tags I can return JSON and parse it to add the options, but I''m not quite sure of the best way to do this.... or any way to do it really :) Could someone point this out to me? Or am I using a totally antiquated

Is there support yet for adding something to a list in sorted order? For example, you have a form to add a new item and you want the new item to be inserted in the list in the proper order. I''ve noticed the :position option in the form_remote_tag but it doesn''t seem like you can use it to keep things in sorted order. Rod Schmidt http://rodschmidt.blogspot.com "Do or

I need to check if a parameter is set so that I can build some information for my application, but No matter how I format my if statement in the file " Application.rb" it return the following error. You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occurred while evaluating nil.[] Here is the line if params[:day] So we

This is a very basic question but I cannot find the ''right'' answer. What is the best way to traverse an object / array with ROR. I need to look at the structure of some of the objects/ arrays but not sure how to go about it. I appreciate your assistance. Thanks Frank --------------------------------- Relax. Yahoo! Mail virus scanning helps detect nasty

First of all thanks a lot to the guys who answered the other topic. Host: Pair Networks - FreeBSD v.4.8-Stable - peulik.pair.com PHP and MySQL services running (is this a problem?) First of all, after I establish the ssh connection I''ve to type, as I mentioned in the old thread, GEM_PATH ~/lib/ruby/gems/1.8 otherwise the ruby installation is not found. position of the executable:

On 1/11/07, Mike D'Ambrogia <miked@jamagination.com> wrote: > > Ralph > > Kind of new to asterisk, and really new to AGI but it looks like you were > trying to have the AGI script tell asterisk to read and lay the results into > my_var and then regain control in the AGI script, is that correct? > > If so I don't think that will work since the dialplan

Hello Community, is it possible to include perl scripts into a ruby view (.rhtml)? If yes, the structure has to be /public --> /cgi-bin like in a web application with cgi scripts? Best regards, Mathias -- Posted via http://www.ruby-forum.com/.