similar to: Ordering of subsets in a model.

Hi, I am trying to convert a hash to JSON using ActiveSupports built in .to_json. I am doing similar to the example below but are there certain strings that could go in place of ''bar'' or ''rez'' that will break the to_json method? I am using a very long string from rjs output in place of ''bar''. Perhaps .to_json is not ready yet? Thanks, Peter

I am creating forum application which needs usage of acts_as_list or acts_as_tree or acts_as_nested_set. I am unable to decide among these. please could some one recommend from their experience? -- Posted via http://www.ruby-forum.com/.

Hello, I am trying to make the "switchover" to programming my apps in Rails and have a question about database structure. In the past i would structure a many to many like this: categories ---------------------------------------------------- | id | name | ---------------------------------------------------- 1 Some Category 2 Another

Hey guys, This is the final list of the new maintainers of each plugin. We need two more things to do: First please the owners of the repos add the rest of the maintainers. Second I will add a note on each rails/plugin mentioning this repos updates. So from now on, if someone else is interested in helping/contributing please send a message to the appropriate repo owner. verification

wondering if anyone tried this patch. (i havent, seeing as its 1228 lines long, 10 months old, and cant take serious a patch many orders larger than competing web frameworks) in many cases i want to keep about 10 things around, eg recent searches, new items (spanning multiple classes), referers, page views, without logging them for perpetuity. so i guess this isnt a normal queue, more like a

If I browse to \myRoRApp, I get the "Welcome aboard" screen. I''ve done the ruby scripts/generate controller MyTest, and "Rolling with Ruby on Rails" tells me I should be able to browse to \myRoRApp\MyTest and see an error page, but what I''m actually seeing is a fastcgi config file! I have installed fastcgi, but apache can''t "see" the

hi, Im looking to build a live data grid, where you can add delete rows using dhtml. and was just wondering if anyone is aware of any plugin''s taht may help me. Ive found this example but if anyone is aware of any other plugin''s please let me know http://unspace.ca/datagrid/update thanks scott -- Posted via http://www.ruby-forum.com/.

I have an arbitrary program written in any language, and it is a binary (ie foo.exe), that will print out output to stdout constantly every 3-5 seconds. Is there a way that I can have a web application designed in rails that will print the output of this program to the browser every 3-5 seconds in realtime, preferably even in an ajax manner. thanks -- Posted via http://www.ruby-forum.com/.

Has anyone extended Rails''s acts_as_tree to use the Modified Preorder Traversal algorithm? This is a really clever trick for optimizing access to trees stored in databases, as described lucidly in this article: http://www.sitepoint.com/article/hierarchical-data-database/2 It adds two integer fields, a "left counter" and "right counter", to each row. By

Hello, I am in the process of trying to date hierarchical data in a MySQL database and convert it into a treeview view JS scripting. As a beginner to ROR there are still many unknown things to me, and handling this sort of data is one of them. My question is this: Is there any built in functionality for handling hierarchical data (via a MySQL DB) in Rails/Ruby? If there is can someone please

I need an ordered (sortable tree) and I just was thinking if somehting like this is possible: class Item< ActiveRecord::Base acts_as_tree :order => "position" acts_as_list :scope => ''parent_id = #{self.id}'' end For my understanding mixing of two acts_as should be p?ssible, at least in this case, right? Unfortunatly the :scope is not working, I am not

I feel awful asking such a basic question, but here it goes.... I have a controller, "NewsController". The user enters and the "list" action is called and I populate an instance variable "@news" which contains all the elements I''d like to display using a form. The user then changes something and the "update" action is called. Is

Hi, I''m trying to get act_as_nested_set working, and I''m puzzled. I googled the following http://codefetch.com/cache?url=http://media.pragprog.com/titles/rails/code/r ails-code.tgz <http://codefetch.com/cache?url=http://media.pragprog.com/titles/rails/code/ rails-code.tgz&path=rails-code/ar/acts_as_nested_set.rb&lang=ruby&qy=ruby>

I have the following form <%= start_form_tag :action => ''rejectQuoteSave'', :id => @project %> <p><label for="offer_reason_rejected"><span class="required">* </span>Reason</label><br/> <%= text_area ''offer'', ''reason_rejected'' %></p> <%= submit_tag

Hello, I am using acts_as_nested_set. My problem is that the columns "lft" and "rgt" get the value 0 if I create a new entity. If I delete an entity I get negative values (-1, -2, -3) - but for all entities. Is there anything missing? Is there any example for "acts_as_nested_set" in the web? -- Posted via http://www.ruby-forum.com/.

Where can I see the API acts_as_nested_set constructs? I''ve read its page in api.rubyonrails.com but I don''t see how to manage the tree from there. -- fxn

Hi, I want to calculate difference between Current date & previous date (stored in database). The difference should be in days. Hhow to do that?? PLs tell me. Thanx in advance. Prash -- Posted via http://www.ruby-forum.com/.

Hi I was wondering if acts_as_nested_set can be used safely with concurrently updates? The fact that so much of the tree needs to be rewritten on inserts concerns me. Is anyone actually using it. I noticed that the status of acts_as_nested_set was unclear at the time the rails book was written. Regards, Glen

I got the following error when trying to create the elibrary instance (rdb:21) @elibrary = Elibrary.new(params[:elibrary]) RuntimeError Exception: Declare either attr_protected or attr_accessible for Elibrary, but not both. params : "elibrary"=>{"title"=>"bingo three", "short_description"=>"something new",

I moved from acts_as_tree to acts_as_nested_set because I need the all_children method. I''ve seen an alternative way to add this method to acts_as_tree here: http://www.chuckvose.com/articles/2006/05/24/recursive-children But I''d prefer to use the more efficient way of acts_as_nested_set (and not to have to revert to my old code). Anyway, here''s my issue: if I