similar to: Sorting through relationships

I get this error ... NoMethodError in StoreController#index undefined method `salable_items'' for Product:Class and here is my store_controller.rb ... class StoreController < ApplicationController def index @products = Product.salable_items end def self.salable_items find(:all, :conditions => "date_available <= now()", :order => "date_available

Hi. I''ve been, fruitlessly, trying to extend the login code from the Agile book. What I''m trying to do, is create a list of logged in users. My idea is to the list of sessions. However, many sessions seem to be outdated. I believe the best way would be to get a list of sessions that have been active in, say, the last 15 minutes. Question is: how can I do this? Any hints

Hello Everyone ~ Recently I have been moving Rails files between Mac, Linux, and Windows. As many know the Windows Ruby version 1.8.4 doesn''t like tab characters. I know in TextMate on the mac you can replace your tabs with spaces from the Text > Convert menu, but is there a way to set it to do tabs with spaces instead as you work? The preferences do not seem to have such a

Dear all, I've got a list L <- list(L1 = list (foo = "bar" , SL = NULL ) , L2 = list ( foo = "bar" , SL = list (SSL1 = list (DF = data.frame(val = 21, foo = "bar") , DFOO = list(foo = "foo", bar = "bar") ) ,

Hi all, I just had the idea of using webgen as a backend for an end-user friendly CMS. Such an end-user would for example be someone who has no programming or computer skills that go beyond using M$ Word. After logging into a friendly, graphic-based admin area of the website (e.g. PHP or Ruby-based), he/she can easily create, change, delete menu nodes, text content, and do a lot of other

Dear All, Consider a matrix (N x N) where each entry is either zero or one (can hardly get any simpler). Now, I would like to plot it as a 'chessboard' where every matrix entry is a black (1) or white (0) square. Whatever tool I use to plot it, it should not try to interpolate the data at all. I found some online references http://www.phaget4.org/R/image_matrix.html but probably I can

I have been learning Rails and building small things over the last several months. Question I have that has been surprising difficult to figure out is this (I know it seems somewhat nonsensical but ignore that). I recently started getting a few requests for basic website to be built, small businesses, stores, even individual people. How would one about doing such a thing using Rails? I may not

Hi I am comparing four different linear mixed effect models, derived from updating the original one. To compare these, I want to use anova(). I therefore do the following (not reproducible - just to illustration purpose!): dat <- loadSPECIES(SPECIES) subs <- expression(dead==FALSE & recTreat==FALSE) feff <- noBefore~pHarv*year # fixed effect in the model reff <-

If I had my very own sweaty, wind-up Ballmer (http://www.ntk.net/ballmer/mirrors.html warning: mind-scarring video), that is what he would be saying: "Relationships, relationships, relationships!!" My unscientific polling of the traffic in #rubyonrails and here is that, second to deployment issues, this is the bigges FAQ for Rails: how to do relationship x in ActiveRecord. There seems

Hi, I am searching for methods to compare regression models with an ordered categorical response variable (polr versus multinom). The pattern of predictions of both methods (using the same predictor variables) is quite different and the AIC is smaller for the multinom approach. I guess polr has more strict premises for the structure of the response variable, which methods can be used to test for

I am currently using acts_as_ferret to search on a Posts table (title and content fields). These posts also have tags (with has_many :tags, :through => :questions_tags). I can''t figure out how to get acts_as_ferret to work with that relationship and allow searching of title, content, And tags at the same time (with the ability to set boost as well). Can this be done? -- Posted via

Hi All, This is my first post on this list. I''m a developer working on the Central Coast of NSW, Australia and came across RSpec via Lachie who demoed RSpec on Rails at a Sydney rails user group meeting a couple of months ago. I''m loving the expressiveness of RSpec and can''t really see myself going back to Test::Unit. I''ve come across one oddity though. I

Hello, I am trying to get autocomplete to save record ID. I have to tables: Students and Departments. Students table has department_id field. Department table has 2 fields: id and name I set up belongs_to: and  has_many: entries in the models of each. In my _form.rhtml I have the autocomplete line that is working: &lt;%= text_field_with_auto_complete :department, :name %&gt; ie.

Hello, I am trying to get autocomplete to save record ID. I have to tables: Students and Departments. Students table has department_id field. Department table has 2 fields: id and name I set up belongs_to: and  has_many: entries in the models of each. In my _form.rhtml I have the autocomplete line that is working: &lt;%= text_field_with_auto_complete :department, :name %&gt; ie.

i''m still pretty new to rails, and while i''ve been able to hack my way into having it do what i want so far, i''m not happy with the way my code looks. on top of that, i''m sure that what i''m doing prlly isn''t the most efficient either. one of my biggest problems is probably to do with using relationships and forms together. i''ve

Hello, 1. I have a form that edits a User and a Person at the same time. The controller is for the User. Everything works fine, except the fields that are populated by the Person fields lose state when validation fails. Do I use params to populate the user? I have tried a bunch of combinations with no luck. 2. The same users table has an integer column called

Hi, New to Rails and the list. Quick questions regarding has_many relationships that require at least 1 child. I''m aware of validate_size_of and use this to make sure that the parent is not saved without at least one child. Question is, is there some Rails magic to help when removing children to ensure the last one is not removed? Currently I''m calling something like this in my

I am in the middle of building YARELS (Yet Another Real Estate Listing Site), and here is one of my issues with model relationships. I have to core models and DB tables: User Property Here are the relationships I need to express: A user can have many properties that he owns (he is the seller) A user can have many properties on his favorites list (he is a buyer/seeker) A user can have many

DHH in Rails Confeerence pointed out that abstract relationships should be converted into concrete objects, CRUDying up relationships. An example would be class User < ActiveRecord::Base has_many :subscriptions has_many :news_categories, :through => :subscriptions end class NewsCategory < ActiveRecord::Base has_many :subscriptions has_many :users, :through => :subscriptions

Hi, Someone put me on to the Rails Application Visualiser http://rav.rubyforge.org/ Which is quite handy for visualizing how things in the application are related, but I''m interested to know if there is something similar available to deal with visualizing the relationships between views and controllers. It''d be really useful to find a way to see all the various views,