Name scope for finding emails from table field

Question

In the user table I have a name field, where some records are names, and some are emails. I know, bad approach. That aside. I'd like to write a named scope that returns only email records.

I've tried adapting a query that does this query, and failed.

MYSQL:

SELECT NAME
FROM USER
WHERE NAME LIKE '%@%.%'

User model:

scope :user_email, :conditions => ["name like '%@%.%'"]

Any help would be appreciated.

Answer 1

Try this:

scope :user_email, :conditions => ["name LIKE ?", '%@%.%']

You should provide string conditions in this format to avoid possible sql injection problems.

Answer 2

Try this:

 named_scope :user_email, :conditions => ["name REGEXP ?", /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i]