NoMethodError when I try to acces a field of an object taken from the DB

Question

  Let\'s say that I have a model called Tweet with the following fields

• 1. id
• 2. content
• 3. created_at
• 4. user_id
<

Answer 1

In your case, It returns a collection of object of Active Record Relation

so for specific record

@original.first.id gives you 64

or

  @tweet = Tweet.find(64)
  @tweet.id #64
  @tweet.content # "Unde et nisi blanditiis vel occaecati soluta praes..."

Answer 2

It's because where returns a collection not a single object

So instead of

@tweet = Tweet.where(id: 64)

You want

@tweet = Tweet.find(64)

because you're using the id

Answer 3

@original is not a Tweet instance but an ActiveRecord::Relation

If you want to access the id of your Tweet directly you should define @original like this

@original = Tweet.find_by_id(64)

or

@original = Tweet.where(id: 64).first

Answer 4

Do this instead, you need to add first

@tweet = Tweet.where(id: 64).first