CODEWITHSUNDEEP
ruby-on-railsruby
Jayway
Jayway

Reputation: 95

How to call different associated resource variables in their controllers?

I am a beginner learning Ruby on Rails. Apologies if this question is very obvious...

I have two resources:

books and book_pages

A book has several pages and I have set up the belongs_to and has_many associations within the models. In the controller for book pages, how do I create a new book_page under this association? I currently have:

class BookPagesController < ApplicationController
...

def new
  @book_page = BookPage.new

   end
end

...

Also, how would I need to set up the corresponding view to create a new page?

Upvotes: 0

Views: 43

Answers (2)

ichigolas
ichigolas

Reputation: 7725

I encourage you to test things on rails console, it's really useful for debugging. ActiveRecord::Base models can be initialized with associations like this:

Book.create(
  title: "TITLE",
  book_pages: [
    { text: "blabllblablalblab", number: 1) },
    { text: "kasdhfkjahwkqjrgs", number: 2) }
    # ....
  ]
)

@fotanus answer is equally valid. http://api.rubyonrails.org/classes/ActiveRecord/Base.html

Upvotes: 0

fotanus
fotanus

Reputation: 20116

Generally speaking, you would need to use a code like this:

book = Book.find(book_id)
book.book_pages.create(page_number: 1, footnote: "yey")

But note that you need to have the book id somehow in your request.

I strongly advise you to stop muddling through and read the rails guides, because rails uses convention over configuration which can be very confusing if you are not up to read the documentation.

Upvotes: 1

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