Ask Your Question
3

What is the method to access joined columns when utilizing Ruby with active record?

asked 2022-02-10 11:00:00 +0000

pufferfish gravatar image

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted
0

answered 2022-06-18 01:00:00 +0000

david gravatar image

To access joined columns when using Ruby with active record, you can use the dot notation to chain the table names together, followed by the column name. For example, if you have a users table joined with a posts table on the user_id foreign key, you can access the title column of the posts table for a user like this:

user = User.joins(:posts).where(id: 1).first
post_title = user.posts.first.title

In this code, we join the posts table with the users table using .joins(:posts) and then filter for a user with an id of 1 using .where(id: 1). We then use .first to get the first user matching that condition. Finally, we can access the title of the first post for that user using user.posts.first.title.

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account. This space is reserved only for answers. If you would like to engage in a discussion, please instead post a comment under the question or an answer that you would like to discuss

Add Answer


Question Tools

Stats

Asked: 2022-02-10 11:00:00 +0000

Seen: 7 times

Last updated: Jun 18 '22