Question

Suppose I have two different arrays.

Emails = ["[e-mail]", "[e-mail]", "[e-mail]"]

Names = ["Name Surname", "Name1, Surname1", "Name2, Surname2"]

And I have a mysql-table called Contacts, which I want to insert each of the values into rows called Emails and Names. Each name and email should be inserted at their according indexes. So Emails[0] should be inserted along with Names[0], Emails[1] with Names[1] etc.

If there was only one array. I could do something like

sql = "INSERT INTO Contacts (email)
VALUES
(‘#{email}’)

Emails.each do |email|
email = email.sql
end

but now I have two arrays and I need to put them so that each email is associated according to the correct name. How do I do this?

Answer 1

Use zip:

 con.prepare "INSERT INTO Contacts(email, name) VALUES(?, ?)"
 Emails.zip(Names).each do |email,name|
   #insert into db
   con.execute(email,name) #assuming **con** is your connection object
 end