similar to: how to access a model from application.rb

Hi all, Im trying to get my head around rails and to help along Im working through "four days on rails" as this seems to give a good real world example with multiple tables and relationships (the main thing I cant work out!) Ive got stuck. Some help would be really good here. The controller has this code: def list @category_pages, @categories = paginate(:category, :per_page =>

Hi all, Not sure if Im doing this the right way (most likely not as I cant make it work!) I have an application that needs to put some content from two different tables(db) on every page within the application. What I thought I could do is write a small application helper that talks to the model and asks for the data. But I cant for the life of me work out how to actually talk to a model from

Hi all, I''m trying to do something for a project. Herez what im trying to do. The user name gets passes from the view to the controller. On line2: The user name gets displayed. On line 3: (If this command works the way I think it works, the sad part is I always get it wrong) anyways, The entry in the data base with the given user name gets searched and the user info gets stored in

i''ve got several methods in my models i use to find based on certain criteria...i''ve done this so the controller code is less cluttered, plus the DRY factor. example: class Foo < ActiveRecord::Base def find_by_something(something) find :all, :joins => ..., :conditions => ... end def find_by_something_else(something_else) find :all, :joins => ...,

Hi all Very simple question, im sure, but I cant find docs anywhere that tell me how to do this. What I want is for the index page of the server to be generated from rails, is www.wibble.com/ will result in a page that has been processed by rails, has the templates etc. >From what I can see, the index page comes from public/index.html How do I get this to be a rails page? Thanks Jonathan

I have problems getting the TIMEOUT value work the same way LILO/GRUB does it.. ie it should wait until the timeout and then use the default value. However, it goes straight for the default value without waiting a single second (and a TIMEOUT value of 500 should mean 50 seconds, as it counts in 1/10th of a second, right?) SYSLINUX (isolinux) 2.00 ----8<------8<---- SERIAL 0 38400 TIMEOUT

Hi All, I think Im having a mental block here. For some reason I just cant get my head round relationships. What I have is the following. 4 tables 1) Hosts 2) Software 3) OperatingSystem 4) Company In my terms (which are most likely wrong) a company can have lots of hosts, a host has lots of software, a host has one operating system. So should my models have the following relations in them?

Using puppet 0.23.2, I have a template where I wish to do something like this: <% if defined? some_variable %> .... <% end %> Ideally I''d like to tell these three cases apart: a) defined to a non-empty value b) defined to an empty value c) undefined However case c) causes problems - in templatewrapper.rb::method_missing it causes an error to be thrown. I''ve changed

Hi all, Not really sure what to put in the title so hope people still open this! What I want to do is produce something like this Col1 Col2 Col3 data1 data2 data3 data4 data5 data6 data7 data8 data9 data.. data.. data.. data.. data.. data.. data-n data-n+1 data-n+2 I can get the data back from my db

Hello, I''m writing a search function for my application, but I am unsure on how to search for all results that contain my search string; here''s what I''ve got: def search @products = Product.find(:all, :conditions => "date_available < now()", :conditions => [ "title ilike ?",

hi i want to paginate a collection found by complex sql query how can i do thanks -- Posted via http://www.ruby-forum.com/.

Hello, Are there any packages/functions available for testing the assumptions underlying assumptions for a good GLM model? Like linktest in STATA and smilar. If not, could somebody please describe their work process when they check the validity of a logit/probit model? Regards, Jay

In my controller...this code works def list2 first_name = params[:client][:first_name] @myclients = Client.find(:all, :conditions => ["first_name = :first_name", {:first_name => first_name}]) end this code doesn''t... def list2 first_name = params[:client][:first_name] if first_name searchstring = ''["first_name =

I''m trying to implement a search system and I''m lost as to how to go about it. I''m searching the model "category", and I''m searching the "name" field. >From there I''ll use @categories.listings to display. But that''s the easy part. I assume I need to use a LIKE command in MySQL, but I don''t know how to do

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I am trying to build a live fs on a CD that is selfbooting that later installs a pre-configured linux (this is acctually an upgrade, I have already done it before with 1.67). Anyway, I can't get it to work this time. All I see is - -----8<------ Cannot load disk image (invalid file)? - -----8<------ My isolinux/isolinux.cfg file: -

Hi all, I'm having problems embedding fonts in my graphics - and I've tried embedFonts to no avail. I have a pdf file and pdffonts tells me: name type emb sub uni object ID ------------------------------------ ----------------- --- --- --- --------- ZapfDingbats Type 1 no no no 5 0 Helvetica

Dear all, I have a very simple question. Simple, that is, if you know the answer. I wish to delete a file in a given directory after having first checked its existence. I issue the following commands path<-'c:example/R/' Thus creating the directory. indicator<-length(grep(filename,path)) If indicator is greater than zero then the file exists. Now I wish to remove this file.

Dear All, Apologies for this simple question and thanks in advance for any help given. Suppose I wanted to plot 1 million observations and produce the command plot(rnorm(1000000)) The labels of the xaxis are 0, e+00 2 e+05 etc. These are clearly not very attractive (The plots are for a PhD. thesis). I would like the axes to be 0,2,4,6,8,10 with a *10^5 on the right hand side. Is there a

Hi All, I have a greyscale image that I am reading in through RGDAL and placing in a pixmap object. As an example use the logo.jpg file that comes with the RGDAL package: #Read the file logo <- system.file("pictures/logo.jpg", package="rgdal")[1] x <- new("GDALReadOnlyDataset", logo) #Create the pixmap object xGrey <- getPixmapGDAL(x) Now I would

Hello, I am interested in producing the expected number of events, in a recurring events setting. I am using the Andersen-Gill model, as fit by the function "coxph" in the package "survival." I need to produce expected numbers of events for a cohort, cumulatively, at several fixed times. My ultimate goal is: To fit an AG model to a reference sample, then use that fitted model