similar to: RE: has_many_belongs_to_many insert issues [CLOSED]

I have several validations applied to my model: class Quote < ActiveRecord::Base has_many :files validates_presence_of :title, :source, :quote, :message => "Missing Field Required" validates_length_of :title, :source, :maximum => 80, :message => "Maximum Length 80 characters" validates_inclusion_of :year, :in=>1911..2006, :message => "Year must be

Hi, I am trying to save a Mechanize object in database (using a Rails Model). But the save operation throws a TypeError Considering that "agent" is an instance of a Rails Model and "user" is defined as a "text" type in the Model. irb(main):039:0> agent.user = WWW::Mechanize.new #<WWW::Mechanize:0xb71295f0 @follow_meta_refresh=false, @key=nil,

Hi all, Ruby 1.8.4 Rails 1.1 OCI8 0.1.14 I think I''m hitting an issue with ActiveRecord::Base#save and the Oracle adapter. Line 158 in the schedules_controller.rb file is simply: 158: if @schedule.save 159: flash[:notice] = ''Schedule was successfully created.'' 160: redirect_to :action => ''list'' 161: else 162: render :action =>

"bitsweat" has given AR/SQLServer some love, but it''s still unhappy... http://dev.rubyonrails.org/changeset/6912 ------------------------------------------------------------------------ r6912 | bitsweat | 2007-05-31 10:15:56 -0700 (Thu, 31 May 2007) | 1 line Fix an edge case with find with a list of ids, limit, and offset. Closes #8437.

Hi all, I am in the process of adding Migration support to the Ingres ActiveRecord adapter and have run in to a problem. During the call to create_table the Ingres adapter some how causes ruby to blow the stack and coredump/segv. I have tracked down the problem down to "add_column_options!" in "lib/active_record/connection_adapters/abstract/schema_statements.rb".

Hi all, I am in the process of adding Migration support to the Ingres ActiveRecord adapter and have run in to a problem. During the call to create_table the Ingres adapter some how causes ruby to blow the stack and coredump/segv. I have tracked down the problem down to "add_column_options!" in "lib/active_record/connection_adapters/abstract/schema_statements.rb".

The build failed. CHANGES ------- Revision 8649 committed by gbuesing on 2008-01-16 20:07:10 Introducing DateTime #utc, #utc? and #utc_offset, for duck-typing compatibility with Time. Closes #10002 M /trunk/activesupport/CHANGELOG M /trunk/activesupport/lib/active_support/core_ext/date_time/calculations.rb M /trunk/activesupport/test/core_ext/date_time_ext_test.rb TEST FAILURES AND

sorry - just had to post my colleague''s non-serious question! (imagine the plugin;) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email

-------------- next part -------------- An embedded message was scrubbed... From: Gildas Mazo <gildas.mazo at curie.fr> Subject: Re: [R] optimization subject to constraints Date: Tue, 10 Aug 2010 15:49:19 +0200 Size: 4924 URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20100810/78862894/attachment.eml>

Hello, Although the subject as been discused several times already I could not find the answer to my problem in the list archive so here is the last post (to date) about usb boot problems... After some time I managed to boot on my usb key perfectly (thanks to syslinux!) But I can't boot the brand new key I just got... I think I'm pretty familiar now with the MBR, boot sector and linux

Hi, I'm getting crazy: This does work: library(Matrix) a1<-b1<-c(1,2) c1<-rnorm(2) aDgt<-spMatrix(ncol=3,nrow=3,i=a1,j=b1,x=c1) png("myImage.png") image(aDgt) dev.off() But this doesn't !!! f<-function(x){ png("myImage.png") image(x) dev.off() } f(aDgt) My image is saved as a text file and contains nothing at all !!! Thanks in advance, Gildas Mazo

Dear R users, I'm looking for tools to perform optimization subject to constraints, both linear and non-linear. I don't mind which algorithm may be used, my primary aim is to get something general and easy-to-use to study simples examples. Thanks for helping, Gildas

Dear R users, Given a user-defined cumulative distribution function F, I want to compute F^{-1}(x). How is that possible with R? Best Regards, -- Gildas Mazo PhD student MISTIS team at INRIA Grenoble, France [[alternative HTML version deleted]]

Hello, I've just posted about a group management problem (mail was "Samba group management understanding") While waiting for an answer I updated samba to the last version I could find for centos 4 which is 3.3.4. Now group membership seems not to work anymore I export this directory: drwxrws--- 2 root mt23 4096 mai 6 12:34 test_smb with this smb.conf extract: [test] path

Dear R users, I'm using optim to optimize a pretty complicated function. This function takes the parameter vector "theta" and within its body I use instructions like sigma<-theta[a:b]; computations with sigma... out<-c() for (i in 1:d){ a<-theta[(3*d+i):c] out[i]<-evaluation of an expression involving 'a' (I use symbolic differentiation) } Unfortunately

Dear R users, I'd like to build a simple design matrix in a efficient way. I naively wrote the code below. #### n = 15 k = 3 nbPerGrp = c(5,5,5) xT <- list() for (i in 1:k){ xT[[i]] <- rep(0, k) xT[[i]][i] <- 1 } X <- matrix(nrow = n, ncol = k) #design matrix for (i in 1:nbPerGrp[1]){ X[i,] <- xT[[1]] } for (i in 1:k-1){ for (j

Dear R users, I want to aggregate data in the following way: ### X <- data.frame(u = c("T1","T1","T1","T2"), v=c("a","a","b","a")) X library(sqldf) sqlOut <- sqldf("select count(distinct(v)) from X group by u") sqlOut ### Now I want to get the same result without using SQL. How can I achieve that ?

Hello all, I want to set up a share for a project (enseign) First thing I did is to create a group for that project (with smbldap-groupadd) and add project members to that group. Then I created a test_smb directory on my linux server with the following access rights: drwxrwx--- 2 gbayard enseign 4096 avr 29 15:03 /test_smb Note: the idea is that only group members should be able to