CODEWITHSUNDEEP
ruby-on-railsrubylazy-loading
Ganesh S Bhat
Ganesh S Bhat

Reputation: 237

How rails console provide result set on querying if Lazy Loading is enabled?

I have a database table users. I am trying to query the database to fetch all users whose ages are greater than 18.

adult_users = User.where('age > 18')

The above query will not be executed, as per lazy loading feature, instead it will just create a Active Record Relation. The actual query will be executed only when you call adult_users.first or if you do some other operations with it.
But in rails console, even if you hit User.where('age > 18'), you can see the query executing.
How could this happen?

Upvotes: 3

Views: 1324

Answers (1)

Vasfed
Vasfed

Reputation: 18474

In console it does execute the query while inspecting the ActiveRecord::Relation

If logging is enabled you can even see the User Load entry.

If you type 

adult_users = User.where('age > 18'); nil

then variable will not get inspected and no query run

Upvotes: 11

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