similar to: Reloading a model in test mode

Hi, Basically I have two models: User and Godfather. The godfather table has three columns: - user_id (FK --> User) - user_godfather_id (FK --> User) - description (text) Inside each model class, I am adding the following associations: class User < ActiveRecord::Base has_many :godfathers # for user_id has_many :godfathers, :foreign_key =>

I have been trying to model a labeled graph using ActiveRecord (trunk version). Basically, I have a ''Node'' model which represents a node linking to other nodes. Links (aka edges) are labeled (i.e., have a ''label'' attribute and other behavior). Thus I decided to model edges as an ''Edge'' model and use a ''has_many :trough''

I would like to associate a ‘product’ model with 3 models inherited from ‘image’: part, action and accessory. I have it working with Has_many :through relating products to images through attachments, I then have to determine the ‘type’ of the STI extension. This means i have to go product.images. While this is ok, i can see it getting tricky when i want to go products.images <<

Hi everyone. I''ve made a default change to has_many :through associations that I felt was important to make before they''re released. This is after some tickets and confusion I''ve seen regarding has_many :through. class Connection < ActiveRecord::Base belongs_to :user belongs_to :channel end class Channel < ActiveRecord::Base has_many :connections

Hi, I have a self-referential has_many :through relationship setup to track relationships between users. Basically relationships are modeled as a join table with an extra column ''relation''. create table relationships ( user_id integer unsigned not null, friend_id integer unsigned not null, relation char(1) not null, ) --- relations --- f = friend r = request to

I have the following 3 models (2 models joined by an intermediate): 1. class Exercise < ActiveRecord::Base 2. has_many :routines, :class_name=>''RoutineExercise'' 3. end 1. class Routine < ActiveRecord::Base 2. has_many :exercises, 3. :class_name=>''RoutineExercise'', 4. :order=>''position'' 5. end 1. class

Hi, I currently have a model with (amongst others) the following declarations in it: has_many :live_action_personnel, :class_name => "Credit", :include => :credit_type, :order => ''credit_types.position, credits.position ASC'', :group =>

I''d like to organise my active records into modules but can''t get the associations to work. The doc says that associations within the same module should work. I''ve tried using the class_name option too but still doesn''t work. Can anyone help? For example module Mod1 class Animal < ActiveRecord::Base has_many :dogs, :class_name =>

I am dealing with a large project. I use a lot of STI and therfore have a lot of models. I''d like to use namespaces to help organize my models but am having trouble getting started. I have a base model Term::Base located in /app/models/term/base.rb: class Term::Base < ActiveRecord::Base set_table_name "terms" end I have a non-namespaced client model: class Client <

Dear list, I?m having a little trouble with adding vertical lines to a histogram. I need to draw a matrix of histograms (using facets), and in each histogram add a vertical line indicating the mean value of the data in each facet. According to the last example in the geom_hline help, to display different lines in each facet I need to provide a data frame. I modified this example to make a plot

I am trying to create an association table using the ":through" option in "has_many" but not having success. I have created the necessary migrations of the association tables and run rake db:migrate I have the following model: class Group < ActiveRecord::Base has_many :users, :through => :group_user has_many :invites, :through => :group_invite, :class_name =>

Hello, I'd like to produce a ggplot where the order of factors within facets is based on the average of another variable. Here's a reproducible example. My problem is that the factors are ordered similarly in both facets. I would like to have, within each facet of `f1', boxplots for 'x' within each factor `f2', where the boxplots are ordered based on the average of x

For security purposes, I often want to find objects that are ''visible''. e.g. class Person < ActiveRecord::Base has_many :x end ... @person.x.find(params[:id]) as opposed to X.find([params[:id]). Simple enough for me. My question: Say we have - class Person < ActiveRecord::Base has_many :x, :class_name ''Z'', .... has_many :y, :class_name

I'm running into some problems with the spacing of some faceted ggplot plots. I have a number of time series faceted to be one above another, but the scale labels of the y axes all clobber each other at the bottom/top of each. for example, try: qplot(x, y, data = data.frame(x = 1:10, y = 1:10, size = 1:10), facets = size ~ ., size = size) + scale_x_continuous(breaks = 1:10) +

Hi all, I''m using rails version 1.2.3. I have the following association in my View class belongs_to :viewer, :class_name => ''User'', :foreign_key => :viewer_id And of course i have a User model class defined to. The problem was that when i tried to use this association it would only work once. At the second try, i would get the following strange error:

Hi, new to R and ggplot2. I've been trying to get a facet plot in which the order of the facets is as I require, rather than ordered numerically, alphabetically, by Roman numerals, mean (answers to these were posted here after much searching). Here's some test code to demonstrate what I get. series = c('C2','C4','C8','C10','C15','C20') ids =

Hello I''ve been struggling with something for hours that I thought would be a simple job. Hopefully somebody can shed some light on what I''m trying to do :o) First of all I''ll explain what I''m trying to achieve. In a store application I want to have products and product variations. A product variation should inherit all of its properties from product unless

Faceting in ggplot2 seems to permit different scales for different facets, but I fail to see how one could control ylim and xlim ranges for each facet separately. For instance, I would like to set the ylim = c(0,10) for facet "A" and ylim = c(42,102) for facet "B". Since the data is out of these ranges, setting facet_grid(factor ~ ., scales = "free_y") does not

Hi All, I''d like to integrate a simple user-oriented messaging system into my app. I have a Message model, with :from_user_id, and :to_user_id (for the user that sent and the user that recieved the message). Obivously, (User) has_many :messages will fetch the messages that a certain user has created, but not the ones that they have been sent. Currently, I have this: has_many :messages,

Hi, I?m doing a project for a company (my first big project in rails). The company alredy has a database schema, with lots of data, so I don?t want to change the database schema, but I don?t know how to map some associations. Example: Table: application Primary Key: idapplication Table: module Primary Key: idmodule Foreign Key: idapplication References aplicattion: idapplication Table: