similar to: avoiding timconsuming for loop renaming identifiers

Perhaps this is intentional, but it seems unlikely: class Person < ActiveRecord::Base belongs_to :school end p = Person.find(:first) p.school # nil p.school_id = School.find_by_name(''High School'').id p.school.name # High School p.school_id = School.find_by_name(''Primary School'').id p.school.name # High School <= Shouldn''t this be Primary

I have a weird problem going on. All of sudden, records for a certain model will not save with #save Please take a look at this: >> p = Payment.new(:payment_reason_id => 1, :payment_method_id => 1, :date => Date.today, :amount => ''5.00'', :payable => Student.find(608)) => #<Payment id: nil, school_id: nil, payment_reason_id: 1, payment_method_id: 1,

I am running into a problem with two of my tables and the "uninitialized constant" error when using migration. I get the "uninitialized constant Note" when running the following code in my migration file: create_table :notes do |t| t.column :id, :integer t.column :noteshare_id, :integer t.column :title, :string t.column :covered, :string

undefined method `each'' for 0:Fixnum at line @school = School.find_by_title(params[:school_id].gsub(''-'', " ")) for team in @school.teams ........ end @school does exist cause i tried with .find(:first) and it gave the same error. Also I''m getting undefined method `reject'' for #<Game:0x24ca1c4> From @home.game_ids = @game

I have mysql running on a different machine. I''ve editted database.yml, here''s the entry development: adapter: mysql database: cookbook username: root password: mypassword host: posta.rmasonfamily.info test: adapter: mysql database: cookbook username: root password: mypassword host: posta.rmasonfamily.info production: adapter: mysql database: cookbook

Dear List, I am relatively new to R and am trying to create more attractive plots than excel can manage! I have looked through the various programmes ggplot, lattice, hmisc etc but my case seems to be not metnioned, maybe it is but i have not noticed - if this is the case i apologise.

Hi All, I''m super a super ruby nuby, so bare with me. I am working on a small app that has a particular form that I am having a rough time figuring out the best to way to handle. Basically here it is, each school has one or more classrooms, and each classroom can have one or more teachers. Here''s what I am trying to do (edit a school): - click on a link to edit a School -

I''m trying to figure this. in my schools controller i want to do this.... # implement a create action to create just the review for the School... def create_review_for_a_school @review = Review.new @school = School.find(params[:school_id]) @review = @school.reviews.build(params[:review]) if @review.save # The creation worked....do this flash[:notice] =

I am doing some very very basic unit testing. If I take away the uniqueness validation, the tests pass. Could this be a bug in Edge Rails? --~--~---------~--~----~------------~-------~--~----~ 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

Hello, After listening to DHH''s 2006 RailsConf keynote, I decided to take a leap on my current application and do a little more re-organizing to make it more CRUD-based. As such, I ended up changing some things around to get this (simplified): User has_many :enrollments, :conditions => ''status > 0'' User has_many :schools, :through => :enrollments User has_many

Hi, got a Sangoma A200 with a bunch of extension cards and having real problems getting it to deal with a normal single BT line Symptoms are that incoming calls are fine. Outgoing calls ring the far end, BUT asterisk never sees that the call is answered (ie no message in the logs files saying so), as a result the remove end can hear the PBX side talking, but there is no audio back from the

Considering an object with several has_many :through => associations, what is the ''best'' way to handle validations? As an example: class Student < ActiveRecord::Base # some attrbutes like # :name # :grade # relationships has_many :students_assignment, :dependent => :destroy has_many :assignments, :through => :students_assignment has_many

def create # next statement is original and is removed # @review = Review.new(params[:review]) @school = School.find(params[:school_id]) # @review = @school.reviews.create!(params[:review]) @review = @school.reviews.build(params[:review]) respond_to do |format| if @review.save flash[:notice] = ''Review was successfully created.'' #

Hi All I dont know if anyone else has noticed the same thing, but with 2 subsequent runs of the same syntax, I am getting exactly the same results. I was expecting that results differ slighlty, say in the 4th or 5th decimal place. Is this a specialty with R2WinBUGS? Does it have something to do with the seed value? Isnt the seed value reset everytime I restart winbugs? Thanks Toby

Hi All I am pretty new to R but saw stata and sas's macro facilities and am looking for how such things work in R. I am trying to piece together a series of statements: n = 5 #want to have it dynamic with respect to n for (j in 1:n) { eval(paste("x", j, "=x[", j, "]", sep="")) } I want the created statements 'x1=x[1]' immediately executed

I was reading the help but just did not get how to specify starting values for varIdent() of the lme() function, although I managed to do it for corSymm(). Do I specify the values just as they are printed out in an output, like c(1, 1.3473, 1.0195). Or do I need to take the residual and multiply it with these like c(0.2235, 0.2235*1.3473, 0.2235*1.0195) or any other form that I dont know of?

I am very confused about where to put the belongs_to and the has_one (and other relationship identifiers). I have read the RDoc and the agile book many times about this and I think i still see it backwards. Let me outline my app so you have an understanding... I have 2 tables: Schools { id, school_name, address_id } and Addresses { street1, street2, city, state, zip, country } *** this

Do I miss here something? dtaa = read.table("http://www.ats.ucla.edu/stat/mplus/examples/ma_snijders/mlbook1.dat", sep=",") head(dtaa) # shows the data as it should be save(dtaa,"dtaa",file="c:/dtaa") d = load("c:/dtaa") head(d) # all data is lost, it only shows [1] "dtaa" "dtaa" Thanks for your hint on this.

Hi All Maybe I dont understand it, but I would have expected that the design matrix has as many rows as there were observations available to fit the model. Below a small artificial dataset created, then one model fitted and the design matrix outputted, having 27 rows. Then I delete 6 obs, and fit the model on these 21 obs, but the design matrix that comes out has 26 rows? Thanks for your

Hi All I was wondering how to get the same results with gls and lme. In my lme, the design matrix for the random effects is (should be) a identity matrix and therefore G should add up with R to produce the R matrix that gls would report (V=ZGZ'+R). Added complexity is that I have 3 levels, so I have R, G and say H (V=WHW'+ZGZ'+R). The lme is giving me the correct results, I am