similar to: just don''t ''get'' "has one" and "belongs to one"

Hello, First of all, I love RoR. I am studying it, and I am finally "getting there". However, I do have a bit of a problem with ActiveRecord''s saving behaviour. Imagine to have Orders (id, name) {has_one:invoice} and Invoices (id, order_id) {belongs_to :order} . If you type: invoice = Invoice.new(...whatever...) an_order.invoice = invoice if invoice fails to save, you

Hi.. Guys new plugin again Foreign Key Associations is a plugin that automatically creates associations based on foreign-keys. The associations are created at runtime-ie. as your ActiveRecord models are loaded-so they will always be up-to-date. For example, given a foreign-key from a customer_id column in an orders table to an id column in a customers table, the plugin creates:

Can I map 2 tables into one class? Is there any pattern, e.g. using ActiveRecord aggregation? Thanks Szczepan -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060103/fa2aed7c/attachment.html

Hi, How do I associate two different tables which have a lookup id (table) as common. I tried the has_many :table2, :through => look_up_table in my table1 model. Any hints? Thanks, Hari -- Posted via http://www.ruby-forum.com/.

I have a people table with four types of people: clients, spouses, children, and others all setup using single-table inheritance with a foreign key back to a household record. A Household has_one client and spouse, and has_many children and others. I want to use a single "Household.find(@session [:household_id], :include => [:client, :spouse, :children, :others])"

I am building an invoicing system but cannot use the auto_increment field to determine the invoice number (because they are running 3 different companies off the one system. I need to find the last invoice number from any given company and then add 1 to it to get the next invoice number. BUT, there is a unique case on the very first invoice produced because there is no earlier invoice

I have a question about regarding the use of ''has_one'' in this scenario: Schema: User ---- id first_name last_name UserMessage ---- user_id message_id Message ---- id Assuming business rules dictate that a Message can have at most ONE User (let''s assume a message can be created without a user associated to it), these are my questions: 1) How would I use has_one

I''m trying to create a sequence with no gaps in my db (contrived example, but should work out the same as my real one), and believe db-managed transactions are the way to go about this. It''s my first real ''go'' at transactions, so I may be mistaken about how things really work. Anyway.. Consider this example code: Class Invoice < ActiveRecord::Base def

Just wanted to ask a quick question here. I am running GNUC 2.6.12 and when I create a invoice for a customer I have to enter an invoice number. I was thinking perhaps there is setting somewhere that I missed to get it to automatically fill in a invoice number? Id hate to have invoices with the same invoice number since I have to manually type them in right now. Thank you, jdegraw

I''m pretty new to Rails, and I think my app has progressed quicker than my knowledge of Rails/Ruby has ... I have the following models: [ -- Begin -- ] class Provider < ActiveRecord::Base has_many :invoices has_one :user def self.get_invoices invoices.find(:all) end end class User < ActiveRecord::Base belongs_to :Provider belongs_to :Consumer def

Hi, How to unlist list column value and add column into data frame. Data frame ID ContractDe PassengersDe TrainnerDe 1 list(ConID=c("Zx","78yu"),ConRes = c("98","Tut")) list(PassID

Hello People, I have a possibly very lame question. I am fairly new to RoR, and I want to make sure I do it "right". I have a model called Invoice, and one called InvoiceLines. Usual story: the table "invoice" has a 1:n relationship with "invoice_lines", which includes invoice_id. Now... the application will have a "new order" button, which will allow

Hi Everyone, Sorry, if it's not directly related to Asterisk. Some of people on this list might have PBX deployed for their clients. What software do you use to invoice them so the invoice looks like a proper telecom invoice maybe? Prefer: -opensource with Windows binary available. -able to create .pdf invoices rather than printable ones. Thanks -------------- next part -------------- An

Hi Friends , Got a unique requirement .I am designing a invoice printing system .So right now I have the NEW page for adding the invoice details to the table .Now I have the requirement of adding Invoice Items In the same form .I have added multiple text boxes to enter the values of the Items using <%= text_field ''invoiceitems[]'', ''item_price''

Hi folks, how could I play an announcement to the calling party as soon, as the called party picked up. I would like to deploy an asterisk in an environment, where a premium rate support-number is offered to customers which do not want to pay a monthly support contract. In Germany, you are commited by law to announce the cost per minute of a premium rate number at the beginning of the call. So,

So....let''s have a look if I understood the issue: -Find_all_by is actually the same like Find(:all), however Find_all_by is much shorter and less complicated than the syntax of Find(:all) -So in my CONTROLLER it says @files = find(:all) however I don''t want to see all files displayed in my selection box, because I only want to see the foles whose mandant_id is the same like

I need help to optimize a query (sort of ...) if params[:debit] == "on" @schools = School.find(:all, :conditions => ["name like ?", "%#{params[:search]}%"], :order => ''name'') @schools.delete_if { |s| s.debit <= 0 } @school_pages = Paginator.new self, @schools.length, 20 The problem here is that

Hello, I have a model called invoice and one called lineitem. An invoice has_many lineitems, and an lineitem belongs to an invoice. I have a model method that calculates the price of a lineitem, and one that calculates all lineitems in an invoice. I want to have an edit page that lists all the invoices lineitems and their calculated prices, with a text field for a person to change the

Hi, I have a question today regarding how the various form elements in _form.rhtml are named. I understand that for a database table "persons" with a column headed by "name", then in _form.rhtml it will probably be like: <p><label for="person_name">Name><br/> <%= text_field ''person'', ''name''

I''m tring to write a little function to indicate if a user is able to pay an invoice, I have my invoice model with: def canPay? if session[:user].id == self.consumer_id return true; else return false; end end as a method, but it gives the error: "undefined local variable or method `session'' for #<Invoice: 0xb7670928>" Right before