similar to: Create a new parent on child form?

I am trying to make a simple application which consists of contacts and their addresses. class Contact < ActiveRecord::Base has_many :addresses end class Address < ActiveRecord::Base belongs_to :contact end I would like to be able to edit/add addresses from within the edit/add of the contact. I scaffolded the contact and address objects and modified the contacts/_form partial as

Hi all, After many days of struggling, I have a multi-model form with ajax elements more or less working, but I''m hitting a wall with a few bugs that I can''t figure out. Guidance would be very much appreciated. I''m using the Ryan Bates technique from Advanced Rails recipes to dynamically add and remove elements on a multi-model form.

Wow, got myself lost as *soon* as I left the hand-holding exercises in the books. I''m trying to set it up so when I click the (scaffold-generated) ''destroy'' link on one (of a list) of parent MySQL records, the children records in a different table get deleted also. Very simple setup: my tables are ''customers'' and ''accounts'' class

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 i am trying to figure out what is the best way to do this very basic thing: lets say i have two tables: one with parents and one with children. there is a one to many relation between them. I scaffolded the parents tabel and i can open each parent. Now i want to add a link to the ''show'' view which will create a new child record. In the model i defined the has_many and

I am trying to create a record with association. Within the create method, I would also like to pre-populate dependent (has_many) records from a template in the database. The child records are <u>mysteriously rolled back </u> if I insert them in a loop. If I try to insert a single child record, it works.I have read the books and tried to google my way out of this but am at a dead

If i have a parent that has_many :children, and the child belongs_to :parent. Then when I add a new child to the parent like so: parent.children << Child.new, then shouldn''t the child also have a reference to the parent? but it doesn''t-- child.parent is nil-- what''s going on here? is this as it should be-- shouldn''t it have a reference to the

Hi All I have 2 models working well in rails 1.2.6 : class TypeService < ActiveRecord::Base has_many :Services end class Service < ActiveRecord::Base belongs_to :TypeService end I was able to get the name of the service with Rails 1.2.3: s = Service.find(1) name_type_service = s.TypeService.name <<-- Now with rails 2.0.2 that doesn''t work With rails 2.0.2 s

I''m having trouble with a validation that depends on an attribute of a belongs_to parent. If the child is added to an unsaved parent (parent.children << new child), the has_many collection parent.children includes the unsaved child. However the belongs_to attribute child.parent appears to be nil until the parent has been saved. Without access to the parent attributes, the validation

I developped a web site with Ruby on Rails, but I get a problem during the testing. I have a parent table called "orders" and a child table called "line_items". I created some data for the test in the files "test/fixtures/orders.yml" and "test/fixtures/line_items.yml". In the file "test/unit/order_test.rb" I wrote some code to test the

I am working on an Rails application that uses a pretty complex category structure through out the site. I have defined a table to house all the info and a FK to reference parents within the table CREATE TABLE categories ( id int(11) NOT NULL auto_increment, name varchar(50) NOT NULL, parent_id int(11) default NULL, constraint fk_category_id foreign key (category_id) references

I''m terribly new to Rails, so bear with me. I have an application I am working on which deals with projects and subcontractors. There can be several subs on each project and each sub can work on several projects. I have my join table set up and has_and_belongs_to_many in both models. If I manually put data in the join table, this works in my show view: <% for subcontractor in

All, I''ve just started Rails and Ruby a week or so ago. Please forgive me for my ignorance. I started writing a small test application to test some of my new knowledge and have hit a wall. Would like some best practices. I have 3 tables, as below... CREATE TABLE `carts` ( `id` int(11) NOT NULL auto_increment, `name` varchar(255) NOT NULL, `quantity` int(11) NOT NULL, PRIMARY

If I have... class Parent has_many :children end class Child belongs_to :parent end ...then... * Assigning a _new_ child during parent''s creation saves the child record with the parent''s id. child = Child.new Parent.create(:children => [child]) # Results in child being associated with parent * Assigning an existing child after a parent''s creation

For an Xray file system patients have folders and folders have studies. That is: patients folders studies id id id name patient_id folder_id ... label type ... ... The list of studies with their associated folder and patient might look like this: name folder_label study_type

I am trying to use the fourth normal form for my applications so that i can get the information in the appropriate language. I have a table called manufacturers. I have another called descriptions. The descriptions are in two languages and each description belongs to a particular language. So two records in the Descriptions table one in English and One in French for each manufacturer. The

Hi there I''ve got a user model and an address model; a user has_many addresses. A user object can be created via an html form which also allows for an initial address to be created. I''ve got a controller method working to save both objects via the form, but I suspect I can achieve this in a more rails-esque manner. Here is my controller method: def signup @user =

Hi I''m trying to create a many to many relationship between two models. A User can be associated with many Incidents and vice versa. class User < ActiveRecord::Base include ActiveModel::ForbiddenAttributesProtection has_many :incident_participants, foreign_key: "participant_id" has_many :participated_incidents, through: :incident_participants end class Incident

I''ve got a fairly simple system with a table for my Users that includes a CountryId field which looks up to the CountryId field of my Country table. What I would like to happen is for my Rails application, which contains models for both User and Country, to be able to draw the dropdown list of available countries on the edit page, like it does in all the tutorials. My model classes look

Assuming we have User, Account, and Role models, and a User has_many :accounts, through: :roles and vice-versa, with the following snippet Rails automatically creates the Role (joiner) record, but with the snippet after Rails will not. I think I''m misunderstanding how has_many through works, so I would appreciate any insight into the subject. def new @account =