# Rails **URL:** https://www.ruby-forum.com/c/ruby-on-rails/6.md?page=1939 [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:** 1940 --- ## [Actions and controllers question](https://www.ruby-forum.com/t/actions-and-controllers-question/91111)
**Author:** [@nubyonrails37](https://www.ruby-forum.com/u/nubyonrails37)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 8:40pm UTC](https://www.ruby-forum.com/t/actions-and-controllers-question/91111 "2007-04-04T20:40:53Z")
\----- NOOB ALERT ----- When an action is called within a single controller – see below – how do i hop to another controller, say to add a link that I want the user to be able to click to edit or view another table? c… --- ## [Best approach for dynamic table display](https://www.ruby-forum.com/t/best-approach-for-dynamic-table-display/91090)
**Author:** [@oliver](https://www.ruby-forum.com/u/oliver)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 8:37pm UTC](https://www.ruby-forum.com/t/best-approach-for-dynamic-table-display/91090 "2007-04-04T20:37:52Z")
hi, folks - Suppose I have a stream of data coming in periodically, what would be best way of displaying a table with dynamic update? Are there any “rails way” of doing this? thanks in advance, Oliver --- ## [Database and migration question](https://www.ruby-forum.com/t/database-and-migration-question/91105)
**Author:** [@nuby2ruby](https://www.ruby-forum.com/u/nuby2ruby)\ **Replies:** 1\ **Last updated:** [April 4, 2007, 8:31pm UTC](https://www.ruby-forum.com/t/database-and-migration-question/91105 "2007-04-04T20:31:33Z")
I have a problem with a project I am working on. What I would like to know is, is there a way to create a field in a database dynamically after an action from a user is done. Such that the user can create a field on t… --- ## [Attribute\_names and/or values?](https://www.ruby-forum.com/t/attribute-names-and-or-values/91050)
**Author:** [@Bryce](https://www.ruby-forum.com/u/Bryce)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 8:05pm UTC](https://www.ruby-forum.com/t/attribute-names-and-or-values/91050 "2007-04-04T20:05:50Z")
Hi rubyists, I’m clunking around with this problem. I want to return an array of values from each record in my database table. I have this so far: @t = Table.find(:all) @t.each do |k| k.attributes end the method … --- ## [How to use two databases within one model](https://www.ruby-forum.com/t/how-to-use-two-databases-within-one-model/90463)
**Author:** [@sebastian](https://www.ruby-forum.com/u/sebastian)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 7:47pm UTC](https://www.ruby-forum.com/t/how-to-use-two-databases-within-one-model/90463 "2007-04-04T19:47:33Z")
For an online shop I will have to work with a legacy data base for some of the models. Furthermore, within my application those models will need additional attributes that I will have to save in my own database. I wa… --- ## [Rjs problems](https://www.ruby-forum.com/t/rjs-problems/91101)
**Author:** [@dgm](https://www.ruby-forum.com/u/dgm)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 7:11pm UTC](https://www.ruby-forum.com/t/rjs-problems/91101 "2007-04-04T19:11:06Z")
im trying to have a rjs template update several elements… i want to fade out 3 or 4 elements, replace them, and then have them reappear, but its not updating correctly. Right now the transitions are choppy and don;t w… --- ## [Understanding routes.rb](https://www.ruby-forum.com/t/understanding-routes-rb/91063)
**Author:** [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 6:34pm UTC](https://www.ruby-forum.com/t/understanding-routes-rb/91063 "2007-04-04T18:34:35Z")
Hi, I am very new to ruby and rails…but I am trying to get the LoginGenerator up and running as quick test, but I have run into the following problem: Routing Error no route found to match “/p/arash2/myapp/” with {:… --- ## [Browser Determination](https://www.ruby-forum.com/t/browser-determination/91047)
**Author:** [@doug](https://www.ruby-forum.com/u/doug)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 6:26pm UTC](https://www.ruby-forum.com/t/browser-determination/91047 "2007-04-04T18:26:33Z")
Can someone please point me to where I can find the party-line on determining the user’s browser in order to write browser-dependent code? With Rails doing so many things for me, I want to avoid getting caught up in … --- ## [Mac osx and linux same work environment? for example can i](https://www.ruby-forum.com/t/mac-osx-and-linux-same-work-environment-for-example-can-i/91097)
**Author:** [@mixplate](https://www.ruby-forum.com/u/mixplate)\ **Replies:** 1\ **Last updated:** [April 4, 2007, 6:24pm UTC](https://www.ruby-forum.com/t/mac-osx-and-linux-same-work-environment-for-example-can-i/91097 "2007-04-04T18:24:32Z")
copy my working rails app from my mac environment to my linux work environment and have it work without any problems? i am thinking of buying a small linux handtop and would basically like to carry what i have on my m… --- ## [Difference between Background DRb and AJAX](https://www.ruby-forum.com/t/difference-between-background-drb-and-ajax/91095)
**Author:** [@joergd](https://www.ruby-forum.com/u/joergd)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 6:21pm UTC](https://www.ruby-forum.com/t/difference-between-background-drb-and-ajax/91095 "2007-04-04T18:21:51Z")
Hi, I need a user to initiate a long running task … say five minutes. And I want the user to wait for a response before doing anything else. The way I see it, using a straight HTTP POST is gonna time out. So, I could… --- ## [Do I need more than one mongrel?](https://www.ruby-forum.com/t/do-i-need-more-than-one-mongrel/91096)
**Author:** [@taylorstrait](https://www.ruby-forum.com/u/taylorstrait)\ **Replies:** 3\ **Last updated:** [April 4, 2007, 6:17pm UTC](https://www.ruby-forum.com/t/do-i-need-more-than-one-mongrel/91096 "2007-04-04T18:17:44Z")
Rookie here. I have a small site servicing only \< 100 people with hits concentrated ~4 days per month. Do I need a mongrel cluster or will one mongrel be enough? Is it worth the hassel in a small site? My VPS has … --- ## [Gruff & legend problems](https://www.ruby-forum.com/t/gruff-legend-problems/91010)
**Author:** [@Pierre-Alexandre\_M](https://www.ruby-forum.com/u/Pierre-Alexandre_M)\ **Replies:** 4\ **Last updated:** [April 4, 2007, 5:52pm UTC](https://www.ruby-forum.com/t/gruff-legend-problems/91010 "2007-04-04T17:52:27Z")
Hi, I have some problems with Gruff & legends. How do you handle many datas? When you have to many labels, the list doesn’t fit in the image. Looking at the source code, the draw\_legend() just calculate the width of … --- ## [Observe\_field radio](https://www.ruby-forum.com/t/observe-field-radio/91094)
**Author:** [@ddancer](https://www.ruby-forum.com/u/ddancer)\ **Replies:** 1\ **Last updated:** [April 4, 2007, 5:18pm UTC](https://www.ruby-forum.com/t/observe-field-radio/91094 "2007-04-04T17:18:25Z")
Hello, I’m having trouble with observe\_field and radio buttons. The issue is the observe\_field action only fires the first time, subsequent clicks on radio buttons do nothing. I’ve seen others post on this issue, bu… --- ## [Call specific model validators from controllers](https://www.ruby-forum.com/t/call-specific-model-validators-from-controllers/91088)
**Author:** [@RJRJRJ](https://www.ruby-forum.com/u/RJRJRJ)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 5:04pm UTC](https://www.ruby-forum.com/t/call-specific-model-validators-from-controllers/91088 "2007-04-04T17:04:25Z")
Here is the scenario. Standard web form that maps directly onto a model (Lets say “user” model). I want to add ajax validation so that when the user exits each field a little request is fired off, the field is valida… --- ## [Form\_remote\_tag and form parameters problem in edge](https://www.ruby-forum.com/t/form-remote-tag-and-form-parameters-problem-in-edge/91087)
**Author:** [@Tarsoly\_AndrSSSSs](https://www.ruby-forum.com/u/Tarsoly_AndrSSSSs)\ **Replies:** 1\ **Last updated:** [April 4, 2007, 4:56pm UTC](https://www.ruby-forum.com/t/form-remote-tag-and-form-parameters-problem-in-edge/91087 "2007-04-04T16:56:22Z")
Hi guys, anybody encountered such a problem that \<% form\_remote\_tag … %\> doesn’t send the data present in the form on submit? Let me explain: I have Products and the products have Properties. routes.rb map.resources… --- ## [Error in rails application](https://www.ruby-forum.com/t/error-in-rails-application/91089)
**Author:** [@Rails\_junkie](https://www.ruby-forum.com/u/Rails_junkie)\ **Replies:** 0\ **Last updated:** [April 4, 2007, 4:55pm UTC](https://www.ruby-forum.com/t/error-in-rails-application/91089 "2007-04-04T16:55:22Z")
I get this strange error on almost all pges of my app. It happens ramdomly . any ideas? In this case. i got it in feedAccess but any page would give the exact same error. compile error ./script/…/config/…/app/views/… --- ## [Why use image\_tag helper and not \ tag](https://www.ruby-forum.com/t/why-use-image-tag-helper-and-not-img-tag/91086)
**Author:** [@josh](https://www.ruby-forum.com/u/josh)\ **Replies:** 3\ **Last updated:** [April 4, 2007, 4:40pm UTC](https://www.ruby-forum.com/t/why-use-image-tag-helper-and-not-img-tag/91086 "2007-04-04T16:40:19Z")
Hi, I was just wondering what the advantage is to using the image\_tag helper over the standard html tag? Also the helper seems to place a load of random numbers on the end, eg ‘?63565665’ why does it do this and wha… --- ## [Conditions array results in undefined](https://www.ruby-forum.com/t/conditions-array-results-in-undefined/91039)
**Author:** [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 4:14pm UTC](https://www.ruby-forum.com/t/conditions-array-results-in-undefined/91039 "2007-04-04T16:14:15Z")
Hi! I’m having another small problem. I run a small query to get all the group\_id’s that are associated with a user. I then take that and run it in another query in order to display the relevant data/group ID the u… --- ## [\[Markaby\] yield instead of @content\_for\_layout?](https://www.ruby-forum.com/t/markaby-yield-instead-of-content-for-layout/101975)
**Author:** [@joe](https://www.ruby-forum.com/u/joe)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 3:57pm UTC](https://www.ruby-forum.com/t/markaby-yield-instead-of-content-for-layout/101975 "2007-04-04T15:57:11Z")
We’re supposed to use yield instead of @content\_for\_layout, but I can’t get yield to work in a Markaby template: yield text yield Either one of these lines results in a ‘no block given’ error (but ‘text @content\_for… --- ## [Render a Drop Down](https://www.ruby-forum.com/t/render-a-drop-down/91078)
**Author:** [@hazmatt](https://www.ruby-forum.com/u/hazmatt)\ **Replies:** 1\ **Last updated:** [April 4, 2007, 3:51pm UTC](https://www.ruby-forum.com/t/render-a-drop-down/91078 "2007-04-04T15:51:09Z")
Hey all, I was just wondering how I would render the following dropdown. Contact Model def full\_name self.Firstname + ’ ’ + self.Lastname end Inside the view I would like to produce a DropDown list that will have … --- ## [Lazy loading of scriptaculous](https://www.ruby-forum.com/t/lazy-loading-of-scriptaculous/91076)
**Author:** [@Nicholas\_W](https://www.ruby-forum.com/u/Nicholas_W)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 3:24pm UTC](https://www.ruby-forum.com/t/lazy-loading-of-scriptaculous/91076 "2007-04-04T15:24:58Z")
Hi \*, both scriptaculous and prototype are quite big, and I don’t use all the goodness inside there, including :defaults is a bit too much for me. Someone knows of a way to dynamically load what’s effectively used in… --- ## [Replacing ERB with Erubis](https://www.ruby-forum.com/t/replacing-erb-with-erubis/90973)
**Author:** [@marstoni](https://www.ruby-forum.com/u/marstoni)\ **Replies:** 4\ **Last updated:** [April 4, 2007, 3:18pm UTC](https://www.ruby-forum.com/t/replacing-erb-with-erubis/90973 "2007-04-04T15:18:56Z")
Hey guys, I’ve been hearing a lot about erubis: http://www.kuwata-lab.com/erubis/ Especially about how much faster it is than straight ERB. In their Ruby on Rails support docs: http://www.kuwata-lab.com/erubis/users-… --- ## [Acts\_as\_versioned with acts\_as\_paranoid not creating new ver](https://www.ruby-forum.com/t/acts-as-versioned-with-acts-as-paranoid-not-creating-new-ver/91082)
**Author:** [@schmitr3](https://www.ruby-forum.com/u/schmitr3)\ **Replies:** 0\ **Last updated:** [April 4, 2007, 3:02pm UTC](https://www.ruby-forum.com/t/acts-as-versioned-with-acts-as-paranoid-not-creating-new-ver/91082 "2007-04-04T15:02:12Z")
Hi, A quick question, when using acts\_as\_paranoid with acts\_as\_versioned, destroying the model (i.e. updating the deleted\_at field) doesn’t create a new version. Are there any workarounds for this - I presume it is b… --- ## [In\_place\_editor on Rails 1.2.1 seems to be broken](https://www.ruby-forum.com/t/in-place-editor-on-rails-1-2-1-seems-to-be-broken/84320)
**Author:** [@Rolando\_Lora](https://www.ruby-forum.com/u/Rolando_Lora)\ **Replies:** 1\ **Last updated:** [April 4, 2007, 1:46pm UTC](https://www.ruby-forum.com/t/in-place-editor-on-rails-1-2-1-seems-to-be-broken/84320 "2007-04-04T13:46:26Z")
The upgrade to the last version of rails (1.2.1) and prototype (1.5.0) seems to introduce a bug in the "in\_place\_editor’. Below a piece of code from an application that was on production: === VIEW === \<%= in\_place\_ed… --- ## [Norwegian users: New norwegian Ruby on Rails forum](https://www.ruby-forum.com/t/norwegian-users-new-norwegian-ruby-on-rails-forum/91079)
**Author:** [@thomma](https://www.ruby-forum.com/u/thomma)\ **Replies:** 0\ **Last updated:** [April 4, 2007, 1:21pm UTC](https://www.ruby-forum.com/t/norwegian-users-new-norwegian-ruby-on-rails-forum/91079 "2007-04-04T13:21:18Z")
Hi I’ve put up a new Ruby on Rails forum at www.railsforum.no Check it out and contribute with questions and answes Peace out thomma www.railsforum.no --- ## [Bytes, strings and encodings](https://www.ruby-forum.com/t/bytes-strings-and-encodings/90627)
**Author:** [@mare](https://www.ruby-forum.com/u/mare)\ **Replies:** 5\ **Last updated:** [April 4, 2007, 11:25am UTC](https://www.ruby-forum.com/t/bytes-strings-and-encodings/90627 "2007-04-04T11:25:54Z")
Hi all I’m creating a Ruby client for some web service and need to send a file to that service. Since I’m a newbie, I have problems translating this Java code into Ruby: byte\[\] origFile = FileUtils.readFileToByteArra… --- ## [Tips on troubleshooting Rails?](https://www.ruby-forum.com/t/tips-on-troubleshooting-rails/90894)
**Author:** [@marko](https://www.ruby-forum.com/u/marko)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 10:13am UTC](https://www.ruby-forum.com/t/tips-on-troubleshooting-rails/90894 "2007-04-04T10:13:46Z")
We have an application that worked fine with a previous version of Rails (1.1.6). We recently upgraded to ver 1.2.2, and the controller handling the XML data stopped working. It seems to crop the data, and now we ca… --- ## [Change From headers in ActionMailer](https://www.ruby-forum.com/t/change-from-headers-in-actionmailer/91016)
**Author:** [@Jermaine](https://www.ruby-forum.com/u/Jermaine)\ **Replies:** 1\ **Last updated:** [April 4, 2007, 9:59am UTC](https://www.ruby-forum.com/t/change-from-headers-in-actionmailer/91016 "2007-04-04T09:59:09Z")
Hi All, Is there a way to change the “From” mail header in ActionMailer? Here’s how my simple ActionMailer class look like: class Notifier \< ActionMailer::Base def contact\_notification(person, email, message) recipi… --- ## [\[PLUGIN\] ArPaginator - Allows you to easily paginate over an](https://www.ruby-forum.com/t/plugin-arpaginator-allows-you-to-easily-paginate-over-an/91064)
**Author:** [@pergesu](https://www.ruby-forum.com/u/pergesu)\ **Replies:** 2\ **Last updated:** [April 4, 2007, 9:53am UTC](https://www.ruby-forum.com/t/plugin-arpaginator-allows-you-to-easily-paginate-over-an/91064 "2007-04-04T09:53:45Z")
The built-in Rails pagination is fairly limited…you pass in the model name, and optionally some conditions, and it generates a paginated query for you. This gets to be very bad if you’ve got any custom queries. class… --- ## [Error occurred while evaluating nil.accepts](https://www.ruby-forum.com/t/error-occurred-while-evaluating-nil-accepts/91066)
**Author:** [@dean](https://www.ruby-forum.com/u/dean)\ **Replies:** 0\ **Last updated:** [April 4, 2007, 9:34am UTC](https://www.ruby-forum.com/t/error-occurred-while-evaluating-nil-accepts/91066 "2007-04-04T09:34:28Z")
I have an index method with a respond\_to block that produces this error: NoMethodError (You have a nil object when you didn’t expect it! The error occurred while evaluating nil.accepts): The show method has the same … [Previous page](https://www.ruby-forum.com/c/ruby-on-rails/6.md?page=1938) [Next page](https://www.ruby-forum.com/c/ruby-on-rails/6.md?page=1940)