# Rails **URL:** https://www.ruby-forum.com/c/ruby-on-rails/6.md?page=777 [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:** 778 --- ## [Self referential model?](https://www.ruby-forum.com/t/self-referential-model/177941)
**Author:** [@spacechurro](https://www.ruby-forum.com/u/spacechurro)\ **Replies:** 5\ **Last updated:** [October 27, 2009, 5:33am UTC](https://www.ruby-forum.com/t/self-referential-model/177941 "2009-10-27T05:33:23Z")
is it possible to have a model be belong to itself? say i have a category, and the category can be a subcategory of another category (or it might be a parent category)… is this possible, and does it make sense? somet… --- ## [Trying to remove invalid characters](https://www.ruby-forum.com/t/trying-to-remove-invalid-characters/177915)
**Author:** [@elricstorm](https://www.ruby-forum.com/u/elricstorm)\ **Replies:** 8\ **Last updated:** [October 27, 2009, 5:20am UTC](https://www.ruby-forum.com/t/trying-to-remove-invalid-characters/177915 "2009-10-27T05:20:15Z")
When parsing win/loss scores from ESPN, I notice that the output looks perfectly normal, even when I carefully inspect the output. It looks like this: wloss = /^\\w\\s\\d{1,2}-\\d{1,2}/ puts @rows\[i\]\[3\] @rows\[i\]\[4\] = @r… --- ## [Bug or not](https://www.ruby-forum.com/t/bug-or-not/177948)
**Author:** [@mgreenly](https://www.ruby-forum.com/u/mgreenly)\ **Replies:** 0\ **Last updated:** [October 27, 2009, 5:05am UTC](https://www.ruby-forum.com/t/bug-or-not/177948 "2009-10-27T05:05:13Z")
I update rails from 2.0.2 to 2.2.3, and I start server by ruby script/server or mongrel\_rails. But when I use my system, for test or view, the system often exit auto and report a failed to allocate memory error. I tr… --- ## [Redirect fails](https://www.ruby-forum.com/t/redirect-fails/177945)
**Author:** [@slavix](https://www.ruby-forum.com/u/slavix)\ **Replies:** 0\ **Last updated:** [October 27, 2009, 2:50am UTC](https://www.ruby-forum.com/t/redirect-fails/177945 "2009-10-27T02:50:07Z")
hello, I am testing an ActiveResource model create method. The remote service is sending back a redirect request with newly created record url, but for some reason redirection fails and I get Error: test\_should\_cre… --- ## [Fine-tuned scheduling: backgroundrb?](https://www.ruby-forum.com/t/fine-tuned-scheduling-backgroundrb/177892)
**Author:** [@jhaagmans](https://www.ruby-forum.com/u/jhaagmans)\ **Replies:** 2\ **Last updated:** [October 27, 2009, 1:42am UTC](https://www.ruby-forum.com/t/fine-tuned-scheduling-backgroundrb/177892 "2009-10-27T01:42:48Z")
Hi, I’d like to make a few requests per second to another method using, for example, backgroundrb (any other suggestions are welcome as well!). I have considered using jRuby to enhance the use of threads and I’m qui… --- ## [Self and Protected Methods question/confusion](https://www.ruby-forum.com/t/self-and-protected-methods-question-confusion/177942)
**Author:** [@cswebgrl](https://www.ruby-forum.com/u/cswebgrl)\ **Replies:** 2\ **Last updated:** [October 27, 2009, 12:15am UTC](https://www.ruby-forum.com/t/self-and-protected-methods-question-confusion/177942 "2009-10-27T00:15:34Z")
Hi, I’m still trying to learn the in’s and out’s of Ruby and Rails. I’ve been testing my code a million different ways and have read a number of books and web sites, but something is still not clicking for me. I wan… --- ## [Hacking Contest](https://www.ruby-forum.com/t/hacking-contest/177938)
**Author:** [@John\_M.Crist](https://www.ruby-forum.com/u/John_M.Crist)\ **Replies:** 0\ **Last updated:** [October 26, 2009, 11:08pm UTC](https://www.ruby-forum.com/t/hacking-contest/177938 "2009-10-26T23:08:48Z")
Hello, We’re going to start a hacking contest soon, hope you all join us :slight\_smile: http://www.wablab.com You’ll notice that there still some missed functionalities on the website, don’t worry, everything will be… --- ## [Error handling on ajax form](https://www.ruby-forum.com/t/error-handling-on-ajax-form/177924)
**Author:** [@ronald](https://www.ruby-forum.com/u/ronald)\ **Replies:** 2\ **Last updated:** [October 26, 2009, 11:05pm UTC](https://www.ruby-forum.com/t/error-handling-on-ajax-form/177924 "2009-10-26T23:05:17Z")
I have a page displaying a form and a table. The form is used to add record to the table using ajax. I am using jQeury for this. Submitting the form with all fields filled in works just fine, but when I leave field e… --- ## [Rails 2.3.4 breaks if I set a cookie's value to a FixNum?](https://www.ruby-forum.com/t/rails-2-3-4-breaks-if-i-set-a-cookies-value-to-a-fixnum/177933)
**Author:** [@phallstrom](https://www.ruby-forum.com/u/phallstrom)\ **Replies:** 2\ **Last updated:** [October 26, 2009, 10:31pm UTC](https://www.ruby-forum.com/t/rails-2-3-4-breaks-if-i-set-a-cookies-value-to-a-fixnum/177933 "2009-10-26T22:31:54Z")
Hi all - I just upgraded a project to 2.3.4 (a54f572d6f994615a2053c361728b65520a1cb53) and I get errors if I set a cookie to a number like this: cookies\[‘foo’\] = 123 # errors out on a call to CGI::escape(123) priv… --- ## [Added restful authentication features](https://www.ruby-forum.com/t/added-restful-authentication-features/177928)
**Author:** [@biqut2](https://www.ruby-forum.com/u/biqut2)\ **Replies:** 2\ **Last updated:** [October 26, 2009, 10:30pm UTC](https://www.ruby-forum.com/t/added-restful-authentication-features/177928 "2009-10-26T22:30:35Z")
Pardon mf ignorance but what is the easiest way to take the crypted\_password that the restful authentication plugin stores in the DB and extract the real password from it so that it can be placed in a variable and the… --- ## [Load custom library path](https://www.ruby-forum.com/t/load-custom-library-path/177890)
**Author:** [@nic](https://www.ruby-forum.com/u/nic)\ **Replies:** 2\ **Last updated:** [October 26, 2009, 9:53pm UTC](https://www.ruby-forum.com/t/load-custom-library-path/177890 "2009-10-26T21:53:15Z")
I’m trying to use a rails app that uses a newer version of RubyGems than my host provides. Since I don’t have root access, I decided to try to install my own version of gems in my home directory. I did so by downloadi… --- ## [Active Merchant](https://www.ruby-forum.com/t/active-merchant/177930)
**Author:** [@dustin](https://www.ruby-forum.com/u/dustin)\ **Replies:** 0\ **Last updated:** [October 26, 2009, 9:25pm UTC](https://www.ruby-forum.com/t/active-merchant/177930 "2009-10-26T21:25:09Z")
Has anyone experienced success implementing the processor\_id option (for the Braintree gateway) with Active Merchant? If I could just get help on this or at least pointed in the right direction to modify or add on to … --- ## [How to write this SQL in Rails](https://www.ruby-forum.com/t/how-to-write-this-sql-in-rails/177917)
**Author:** [@mitch\_newbie](https://www.ruby-forum.com/u/mitch_newbie)\ **Replies:** 5\ **Last updated:** [October 26, 2009, 9:19pm UTC](https://www.ruby-forum.com/t/how-to-write-this-sql-in-rails/177917 "2009-10-26T21:19:53Z")
I would like to write the following sql in Rails form. SELECT manufacturers., manuf\_descriptions. FROM manufacturers INNER JOIN manuf\_descriptions ON manuf\_descriptions.manufacturer\_id = manufacturers.id WHERE (manuf\_… --- ## [HTML Button to call RESTful URL?](https://www.ruby-forum.com/t/html-button-to-call-restful-url/177909)
**Author:** [@RVince](https://www.ruby-forum.com/u/RVince)\ **Replies:** 1\ **Last updated:** [October 26, 2009, 7:50pm UTC](https://www.ruby-forum.com/t/html-button-to-call-restful-url/177909 "2009-10-26T19:50:42Z")
How can I amend a button on my form that looks like: To invoke a method def leads … end in my ChannelsController ? Thanks, Rvince --- ## [Multi Select with fields\_for](https://www.ruby-forum.com/t/multi-select-with-fields-for/177920)
**Author:** [@acgreen](https://www.ruby-forum.com/u/acgreen)\ **Replies:** 1\ **Last updated:** [October 26, 2009, 7:43pm UTC](https://www.ruby-forum.com/t/multi-select-with-fields-for/177920 "2009-10-26T19:43:40Z")
I’m trying to get a multi select box working with fields\_for but am having a few problems. My view has … \<% form\_for(@teacher) do |f| %\> \<%= f.label :surname %\> \<%= f.text\_field :surname %\> \<% f.fields\_for :qualif… --- ## [Two text\_field\_with\_auto\_complete field with the same search content](https://www.ruby-forum.com/t/two-text-field-with-auto-complete-field-with-the-same-search-content/140429)
**Author:** [@toddlc](https://www.ruby-forum.com/u/toddlc)\ **Replies:** 14\ **Last updated:** [October 26, 2009, 7:43pm UTC](https://www.ruby-forum.com/t/two-text-field-with-auto-complete-field-with-the-same-search-content/140429 "2009-10-26T19:43:29Z")
Hi all, I have a form with two text\_field\_with\_auto\_complete s, both of which do a lookup from the same table: \