similar to: How to create multiple selects with related content?

In the following deployment of web app on ONE pc-based server,running linux,which can support the most amount of concurrent users as well as the shortest latency? 1 apache+mongrel 2 apache+mongrel_cluster 3 lighthttpd+mongrel 4 lighthttpd+mongrel_cluster 5 lighthttpd+fastcgi Thanks charlie -- Posted via http://www.ruby-forum.com/.

Hi all, I woke up at 4AM this morning to find a solution for this and it is still not working.. grrr! lost sleep for nothing! Anyways, I have 2 select list and I want the content of the second list to be updated according to what is selected in the first list. I did this in the past by having my application generate all the possible content of the second list and make some Javascript to do

Anyone who has met such a kind of problem? I am adding i18n characteristics to my webapp using gettext,it works under IE,while not under firefox. here is my codes: po: po\zh_CN\myapp.po after rake makemo, i have got: locale\zh_CN\LC_MESSAGES\myapp.mo require ''gettext/rails'' class ApplicationController < ActionController::Base init_gettext "myapp" end Then I use

I use rails-engine as a plugin of the application and I want to localize the validate message from the plugin: validates_length_of :login, :within => 3..40, :on => :create, :message => N_("%{fn} is too short (min is %d characters)") It can not display the according language,where should i set it? I have tried to add require ''gettext/rails''

In my model I have a city_id. ON the form I am using a cascading select to select the state, which then does a remote_submit to get the list of cities (and hence the city_id) for the selected state. The problem that I am having is that if I make a selection, hit SUBMIT and validation fails, the original selected state/city is now reset (ie, the values aren''t saved). Since they

Hi, I have a question, how to most properly select set of cities which would be as similar as possible in some particular variables with the City of Boston (which I use as my base line). I thought about ordering cities by sum of ((differences between value of that particular variable for that particular city and the value of same variable for Boston) divided by the standard deviation of the

Hi, I''m new to rails/ruby having come from PHP and am just starting to get my head round how easy it can be :) However, can anyone point me in the right direction for dynamicaly updating a select box based upon the choice of a previous select box, without a page refresh. Any and all help greatly appreciated. Thanks -- Posted via http://www.ruby-forum.com/.

I have met a very strange problem on file_column usage. After I have added file_column :image to the model,everything is ok. But after I added more: file_column :image, :magick => {:versions => { :thumb => {:size => "50*50"}, :medium => {:size => "640*480>"}}} I can not even start the whole website! Here is the

Friends- I have put up a small tutorial about my experimentations with mongrel clusters behind an HTTP load balancer with no front web server like lighty or apache. This little setup is extremely powerful for how easy it is to set up. I would love for more folks to experiment with this type of setup to expose any issues it may have as a production environment. I have had zero issues

How to set the default language in GetText? The default language of GetText is en,and I want to change it to another language,and also keep the ability to change to any other languages by just click the according href. Currently I use: class ApplicationController < ActionController::Base before_filter :set_charset def set_charset @headers["Content-Type"] = "text/html;

I''ve done the ''Googling'' for days now to find an example of using two dependent select statements on a form where the user selects the parent record value and the observe_field ''kicks in'' to create another select that shows parent.children offerings. Is there anyone I can pay to provide me with the simplest example? If so, please contact me by email.

linked selects are critical to my application. for those who don''t know, a linked select updates as the select box it is linked to is updated. for example, if select 1 is "California", then select 2 will list all the cities in California. change select 1 to Washington and select 2 will automatically change to list all the cities in Washington. I use a php forms class to

Say I want to include the data from Minard's march on Moscow graphic in a package. They consist of three data frames, Minard.troops, Minard.cities, Minard.temp. I've determined that I can document them all in one .Rd file, Minard.Rd, that starts: \name{Minard} \Rdversion{1.1} \alias{Minard} \alias{Minard.cities} \alias{Minard.troops} \alias{Minard.temp} \docType{data} \title{ Data

Let''s suppose I have a books table and an authors table. A book belongs to an author (to put things simply) I want to browse the book list order by the author''s name. In sql it would be like this (to make it clear) select b.id, b.title, a.id as authors_id a.name as authors_name from books as b inner join authors as a on b.authors_id = a.id order by a.name the problem is that

Hi! I''ve understood that the mod_ruby apache module is not recommended for running Ruby on Rails applications. But I haven''t found any information as to why that is so. Please enlighten me. And could you point me to the (currently) prefered production environment. (That can handle both RoR and PHP sites). Thank you and best regards Hans-Eric Gr?nlund -- Posted via

Hi everyone, Does Ruby support variable variables like PHP (http://www.php.net/manual/en/language.variables.variable.php)? Or do I have to use eval, like some_hash.each_pair{|key, pair| eval "#{key} = #{value}" } Or is there some other way? I''m actually trying to figure this out in order to use ez_where to create its conditions from a hash, so if this isn''t even

I am trying to play with a Countries -> Cities dynamically updating select box.that is if someone selects a country then all the cities of that country must be listed.Does anyone know of any data source for this? I searched for it but couldnt find any good usable source. Better still is there a module which I can mixin for this? Thanks Vivek -------------- next part -------------- An HTML

I''m in progress of making a little folder system with Ruby on Rails. I''ve got a "folders" table. Each "folder" has got an id and a folder_id. The folder_id is supposed to represent the folders'' parent folder. How can I tell Rails? I would like Rails to automaticly delete all subfolders of a folder when I delete the folder it self. Any ideas? --

Anyone know of any Ruby modules which can be used to parse an HTML page ? Thanks, Wes -- Posted via http://www.ruby-forum.com/.

Hi, Would someone be able to explain how ruby class/object contexts work from the point of view of a deployed rails application using FASTCGI and noting there are multiple Ruby processes running (say on dreamhost for example). Some questions to help clarify what I''m trying to understand: a) how do incoming URL requests get spread across the multiple Ruby processes (let''s