# Rails **URL:** https://www.ruby-forum.com/c/ruby-on-rails/6.md?page=1253 [Latest](https://www.ruby-forum.com/latest.md) · [Categories](https://www.ruby-forum.com/categories.md) · [Tags](https://www.ruby-forum.com/tags.md) **Page:** 1254 --- ## [How to download a file uploaded through attachment\_fu?](https://www.ruby-forum.com/t/how-to-download-a-file-uploaded-through-attachment-fu/143906)
**Author:** [@rahulonrails](https://www.ruby-forum.com/u/rahulonrails)\ **Replies:** 1\ **Last updated:** [July 28, 2008, 8:28am UTC](https://www.ruby-forum.com/t/how-to-download-a-file-uploaded-through-attachment-fu/143906 "2008-07-28T08:28:20Z")
Hi, I’m new to rails world. I tried out simple example using attachment\_fu. I have successfully uploaded a file and also can delete the file just by giving the id. I need help in downloading the file saved in the fil… --- ## [Downgrading rubygems](https://www.ruby-forum.com/t/downgrading-rubygems/144098)
**Author:** [@swamy\_g](https://www.ruby-forum.com/u/swamy_g)\ **Replies:** 3\ **Last updated:** [July 28, 2008, 8:16am UTC](https://www.ruby-forum.com/t/downgrading-rubygems/144098 "2008-07-28T08:16:32Z")
Hi, When I did a gem -v, it showed me the version as 1.0.1. I want to downgrade this to version 0.9.0. How can I do this? Thanks a lot --- ## [Fastercsv, parse columns into hash/array](https://www.ruby-forum.com/t/fastercsv-parse-columns-into-hash-array/144275)
**Author:** [@biqut2](https://www.ruby-forum.com/u/biqut2)\ **Replies:** 1\ **Last updated:** [July 28, 2008, 6:46am UTC](https://www.ruby-forum.com/t/fastercsv-parse-columns-into-hash-array/144275 "2008-07-28T06:46:14Z")
I am importing a csv file with the following code. I need to be able to load the file into a hash or an array so that I can access the values in each column and row individually. There aore 14 columns in each row and … --- ## [REST and extra actions](https://www.ruby-forum.com/t/rest-and-extra-actions/144264)
**Author:** [@DS\_Mick](https://www.ruby-forum.com/u/DS_Mick)\ **Replies:** 1\ **Last updated:** [July 28, 2008, 4:15am UTC](https://www.ruby-forum.com/t/rest-and-extra-actions/144264 "2008-07-28T04:15:30Z")
Hi, I’m trying to implement some charts in my REST application. But I can’t seem to use an extra action like “chart” in my controller. Becouse of the rest approach, it sees the action name as an id. Does anyone know … --- ## [Error message: ActionView::TemplateError (No :secret given t](https://www.ruby-forum.com/t/error-message-actionview-templateerror-no-secret-given-t/144276)
**Author:** [@jsn1](https://www.ruby-forum.com/u/jsn1)\ **Replies:** 0\ **Last updated:** [July 28, 2008, 3:59am UTC](https://www.ruby-forum.com/t/error-message-actionview-templateerror-no-secret-given-t/144276 "2008-07-28T03:59:23Z")
Hi all I am getting this error message on the log, and I do not unserstand it. I am using rails 2.0. Please advice ActionView::TemplateError (No :secret given to the #protect\_from\_forgery call. Set that or use a se… --- ## [Switching between projects?](https://www.ruby-forum.com/t/switching-between-projects/144273)
**Author:** [@pepa007](https://www.ruby-forum.com/u/pepa007)\ **Replies:** 3\ **Last updated:** [July 28, 2008, 3:43am UTC](https://www.ruby-forum.com/t/switching-between-projects/144273 "2008-07-28T03:43:35Z")
Hi, sorry for newbie question: how do I switch between projects on command line? I know ‘rails projectA’ creates projectA. but if I have another projectB in another folder, how do I make this one active? Thank you --- ## [One Rails App - thousands of vHosts pointing to it](https://www.ruby-forum.com/t/one-rails-app-thousands-of-vhosts-pointing-to-it/144272)
**Author:** [@jeffpritchard](https://www.ruby-forum.com/u/jeffpritchard)\ **Replies:** 5\ **Last updated:** [July 28, 2008, 2:53am UTC](https://www.ruby-forum.com/t/one-rails-app-thousands-of-vhosts-pointing-to-it/144272 "2008-07-28T02:53:37Z")
I have a new client with a project that will be organized a lot like “blogspot.com” (aka blogger) where there are a large number of content providers, and each one of those people gets their own subdomain off the main… --- ## [Combo Mysql/Rails/DBD question - How do I do rankings?](https://www.ruby-forum.com/t/combo-mysql-rails-dbd-question-how-do-i-do-rankings/144194)
**Author:** [@armstheykill](https://www.ruby-forum.com/u/armstheykill)\ **Replies:** 3\ **Last updated:** [July 28, 2008, 1:55am UTC](https://www.ruby-forum.com/t/combo-mysql-rails-dbd-question-how-do-i-do-rankings/144194 "2008-07-28T01:55:10Z")
So I’m trying to be jack of all trades on a project, and instead i am mastering none. Let’s say I have a table of users. Each user has a popularity score which is a non-negative float. On each user’s homepage I want… --- ## [Subclass does not call super in constructor](https://www.ruby-forum.com/t/subclass-does-not-call-super-in-constructor/144226)
**Author:** [@jsn1](https://www.ruby-forum.com/u/jsn1)\ **Replies:** 1\ **Last updated:** [July 28, 2008, 1:33am UTC](https://www.ruby-forum.com/t/subclass-does-not-call-super-in-constructor/144226 "2008-07-28T01:33:33Z")
I am working with the book agile Web D. second edition, and in page 110 there is an example i how to create the model CartItem. I am using rails 2.0 and after adding the class CartItem I get an error at the construct… --- ## [Two peculiarities with Rails.cache.fetch()](https://www.ruby-forum.com/t/two-peculiarities-with-rails-cache-fetch/144270)
**Author:** [@robb](https://www.ruby-forum.com/u/robb)\ **Replies:** 0\ **Last updated:** [July 28, 2008, 12:15am UTC](https://www.ruby-forum.com/t/two-peculiarities-with-rails-cache-fetch/144270 "2008-07-28T00:15:14Z")
Hi, I’m experimenting with using this inside of models which provide mostly static data from the database. However, both cases where I wanted to use it, it seems to not work; I’m not sure if it’s me, or the library: … --- ## [Additional parameter for nested resources](https://www.ruby-forum.com/t/additional-parameter-for-nested-resources/144193)
**Author:** [@julian](https://www.ruby-forum.com/u/julian)\ **Replies:** 5\ **Last updated:** [July 27, 2008, 10:44pm UTC](https://www.ruby-forum.com/t/additional-parameter-for-nested-resources/144193 "2008-07-27T22:44:31Z")
Hi I’m working with rails 2.1.0 and with nested resources. My links i generate with the following helper: link\_to @state.name, \[@country, @state\] Everything works fine and the urls are correctly generated. But now I… --- ## [Text not rendering as html](https://www.ruby-forum.com/t/text-not-rendering-as-html/144210)
**Author:** [@messismore](https://www.ruby-forum.com/u/messismore)\ **Replies:** 5\ **Last updated:** [July 27, 2008, 9:37pm UTC](https://www.ruby-forum.com/t/text-not-rendering-as-html/144210 "2008-07-27T21:37:37Z")
Hi, I initially posted this in the Rails Deployment section by accident. I have set up TinyMCE as an inkine javascript text editor on my text areas, but when I open show.html.erb it renders out, for example, bold tag… --- ## [\[newbie prob\] Errno::ECONNREFUSED in SayController#hello](https://www.ruby-forum.com/t/newbie-prob-errno-econnrefused-in-saycontroller-hello/144239)
**Author:** [@luckyzenn](https://www.ruby-forum.com/u/luckyzenn)\ **Replies:** 3\ **Last updated:** [July 27, 2008, 8:45pm UTC](https://www.ruby-forum.com/t/newbie-prob-errno-econnrefused-in-saycontroller-hello/144239 "2008-07-27T20:45:43Z")
hello! i created a controller named ‘Say’ and added an action ‘hello’ into it. now i just wanted to call it with localhost:3000/say/hello but i get this error msg: Errno::ECONNREFUSED in SayController#hello here is … --- ## [Finding users in a group returned query](https://www.ruby-forum.com/t/finding-users-in-a-group-returned-query/143381)
**Author:** [@GearSSS\_id\_OSCealla](https://www.ruby-forum.com/u/GearSSS_id_OSCealla)\ **Replies:** 11\ **Last updated:** [July 27, 2008, 8:11pm UTC](https://www.ruby-forum.com/t/finding-users-in-a-group-returned-query/143381 "2008-07-27T20:11:08Z")
I’m relatively new to rails and am setting up a system which contains bands and users. Both bands and users has and belongs to many of the other. In the bands “show” view, I want to list all the users within a band. … --- ## [Mongrel freeze](https://www.ruby-forum.com/t/mongrel-freeze/143297)
**Author:** [@billv](https://www.ruby-forum.com/u/billv)\ **Replies:** 1\ **Last updated:** [July 27, 2008, 7:25pm UTC](https://www.ruby-forum.com/t/mongrel-freeze/143297 "2008-07-27T19:25:49Z")
Hi, I am having a problem with mongrel not responding after a period of inactivity. Searching the various logs and such, it seems to be a problem with mysql. The facts: I am running CentOS5 I do not have a warning… --- ## [Is RoR dependent on JavaScript?](https://www.ruby-forum.com/t/is-ror-dependent-on-javascript/144200)
**Author:** [@tinney](https://www.ruby-forum.com/u/tinney)\ **Replies:** 9\ **Last updated:** [July 27, 2008, 7:01pm UTC](https://www.ruby-forum.com/t/is-ror-dependent-on-javascript/144200 "2008-07-27T19:01:39Z")
Hello everyone, I was wondering, is Ruby on Rails dependent on JavaScript? A little background to this question: I created a link that would remove an element from the database. Thus, this link has a :method =\> :dele… --- ## [AR model using a table form another database](https://www.ruby-forum.com/t/ar-model-using-a-table-form-another-database/144215)
**Author:** [@mhfs](https://www.ruby-forum.com/u/mhfs)\ **Replies:** 1\ **Last updated:** [July 27, 2008, 6:57pm UTC](https://www.ruby-forum.com/t/ar-model-using-a-table-form-another-database/144215 "2008-07-27T18:57:33Z")
Is there a way to configure an ActiveRecord model to use table in another database? I ask this becouse our user table is a centralized one, used by many other applications. These applications use various ways/abstra… --- ## [Access denied for root@localhost](https://www.ruby-forum.com/t/access-denied-for-root-localhost/144238)
**Author:** [@joeyboy](https://www.ruby-forum.com/u/joeyboy)\ **Replies:** 5\ **Last updated:** [July 27, 2008, 6:14pm UTC](https://www.ruby-forum.com/t/access-denied-for-root-localhost/144238 "2008-07-27T18:14:38Z")
hi! when i run this command: rake db:schema:load i get: access denied for root@localhost i’m 101% sure i entered the correct login name and password in config\\database.yml. i can go inside mysql environment using t… --- ## [Awesome\_nested\_set](https://www.ruby-forum.com/t/awesome-nested-set/144252)
**Author:** [@subv3](https://www.ruby-forum.com/u/subv3)\ **Replies:** 0\ **Last updated:** [July 27, 2008, 5:51pm UTC](https://www.ruby-forum.com/t/awesome-nested-set/144252 "2008-07-27T17:51:30Z")
Hi, I’ve been trying to setup a threaded comments system all weekend using various plugins and I’m now trying to use awesome\_nested\_set (http:// GitHub - collectiveidea/awesome\_nested\_set: An awesome replacement for a… --- ## [Rails Cookbook review](https://www.ruby-forum.com/t/rails-cookbook-review/144237)
**Author:** [@Phlip](https://www.ruby-forum.com/u/Phlip)\ **Replies:** 2\ **Last updated:** [July 27, 2008, 5:35pm UTC](https://www.ruby-forum.com/t/rails-cookbook-review/144237 "2008-07-27T17:35:42Z")
Guys: Stuck at the mall today, and just had to crack Rails Cookbook, by O’Reilly. It had a recipe for accepting dynamically created forms. The recipe resolved to build a grid on a page, and submit it with enumerable… --- ## [Unable to change the database](https://www.ruby-forum.com/t/unable-to-change-the-database/144243)
**Author:** [@ramu](https://www.ruby-forum.com/u/ramu)\ **Replies:** 11\ **Last updated:** [July 27, 2008, 5:31pm UTC](https://www.ruby-forum.com/t/unable-to-change-the-database/144243 "2008-07-27T17:31:01Z")
Hi All, I have started to learn RoR couple of days back. I am using Aptana editor for Rails. I created a new project called users and the database called users\_development. I have added the controller called which i… --- ## [Finding the most similar topics through tags](https://www.ruby-forum.com/t/finding-the-most-similar-topics-through-tags/144227)
**Author:** [@peter](https://www.ruby-forum.com/u/peter)\ **Replies:** 1\ **Last updated:** [July 27, 2008, 3:49pm UTC](https://www.ruby-forum.com/t/finding-the-most-similar-topics-through-tags/144227 "2008-07-27T15:49:07Z")
I have posts, and those posts have tags. Now what i would like to do is find, for a given post, the most similar posts based on the tags they have. I’d like to retrieve a list with all the posts from all the tags that… --- ## [Error configuring s3 with attachment\_fu](https://www.ruby-forum.com/t/error-configuring-s3-with-attachment-fu/144046)
**Author:** [@seanhussey](https://www.ruby-forum.com/u/seanhussey)\ **Replies:** 2\ **Last updated:** [July 27, 2008, 2:45pm UTC](https://www.ruby-forum.com/t/error-configuring-s3-with-attachment-fu/144046 "2008-07-27T14:45:16Z")
Hi everyone, I’m configuring attachment\_fu to use s3, but I’m getting an error: Image.new NoMethodError: You have a nil object when you didn’t expect it! The error occurred while evaluating nil.tmp\_dh\_callback= fr… --- ## [Restful\_authentication issue](https://www.ruby-forum.com/t/restful-authentication-issue/144224)
**Author:** [@stickstone](https://www.ruby-forum.com/u/stickstone)\ **Replies:** 1\ **Last updated:** [July 27, 2008, 2:30pm UTC](https://www.ruby-forum.com/t/restful-authentication-issue/144224 "2008-07-27T14:30:03Z")
I cloned from github, can the generator with the --include-activation option Now when I go to create a new user account the following method in app/models/user\_observer.rb fails: def after\_save(user) UserMailer.deli… --- ## [Rails Cookbook review](https://www.ruby-forum.com/t/rails-cookbook-review/144235)
**Author:** [@Phlip](https://www.ruby-forum.com/u/Phlip)\ **Replies:** 0\ **Last updated:** [July 27, 2008, 7:12am UTC](https://www.ruby-forum.com/t/rails-cookbook-review/144235 "2008-07-27T07:12:50Z")
Guys: Stuck at the mall today, and just had to crack Rails Cookbook, by O’Reily. It had a recipe for accepting dynamically created forms. The sample output looked like this (reconstructed): p params\[:my\_form\] \[“1… --- ## [Is find(params\[:id\]) safe?](https://www.ruby-forum.com/t/is-find-params-id-safe/144221)
**Author:** [@comopasta](https://www.ruby-forum.com/u/comopasta)\ **Replies:** 4\ **Last updated:** [July 27, 2008, 6:56am UTC](https://www.ruby-forum.com/t/is-find-params-id-safe/144221 "2008-07-27T06:56:47Z")
Hi, I’m doing some basic changes related to security like the ones below: Avoiding mass assignment substituting: @comment = @tab.comments.build\[params\[:comment\]) With: @comment.body = params\[:comment\]\[:body\] Avoidi… --- ## [Help - "Cannot start a transaction within a transaction"](https://www.ruby-forum.com/t/help-cannot-start-a-transaction-within-a-transaction/144229)
**Author:** [@leeredwards](https://www.ruby-forum.com/u/leeredwards)\ **Replies:** 0\ **Last updated:** [July 27, 2008, 2:16am UTC](https://www.ruby-forum.com/t/help-cannot-start-a-transaction-within-a-transaction/144229 "2008-07-27T02:16:40Z")
This is my first Rails app, and things are going pretty well with he exception of an error that seems to be configuration-related. I’m getting a strange error on my (Railsplayground) deployed app using fast-cgi, Ruby … --- ## [Acts\_as\_versioned and Rails 2.1](https://www.ruby-forum.com/t/acts-as-versioned-and-rails-2-1/139606)
**Author:** [@toby\_privett](https://www.ruby-forum.com/u/toby_privett)\ **Replies:** 5\ **Last updated:** [July 27, 2008, 2:16am UTC](https://www.ruby-forum.com/t/acts-as-versioned-and-rails-2-1/139606 "2008-07-27T02:16:39Z")
Hello Is anyone having issues with acts\_as\_versioned and Rails 2.1 ? On saving an Active Record object using acts\_as\_versioned “NoMethodError: You have a nil object when you didn’t expect it!” and: from /opt/l… --- ## [Fixtures, how to set a serialized Hash object](https://www.ruby-forum.com/t/fixtures-how-to-set-a-serialized-hash-object/144209)
**Author:** [@kadoudal](https://www.ruby-forum.com/u/kadoudal)\ **Replies:** 1\ **Last updated:** [July 26, 2008, 11:43pm UTC](https://www.ruby-forum.com/t/fixtures-how-to-set-a-serialized-hash-object/144209 "2008-07-26T23:43:23Z")
I defined in my model : … serialize :unavailables … which is set like this (Hash : “year” =\> 2-dimensional Array) {“2008” =\> Array.new(13).map!{ Array.new(32, 1)} } In my fixture I need to initiliaze this field… --- ## [Save without calling the after\_create](https://www.ruby-forum.com/t/save-without-calling-the-after-create/144217)
**Author:** [@elioncho](https://www.ruby-forum.com/u/elioncho)\ **Replies:** 0\ **Last updated:** [July 26, 2008, 9:21pm UTC](https://www.ruby-forum.com/t/save-without-calling-the-after-create/144217 "2008-07-26T21:21:03Z")
I have an observer class called AttendanceObserver which sends an email everytime a record is inserted into the Attendance table. But there are several other actions when I also save into that table but I don’t want t… [Previous page](https://www.ruby-forum.com/c/ruby-on-rails/6.md?page=1252) [Next page](https://www.ruby-forum.com/c/ruby-on-rails/6.md?page=1254)