ruby on rails - Updating database, what options do I have? -

i'm beginner in rails, , want know how can update database?(i'd know possible options it).

i got simple table called users, got :name , :email attributes.

as read can update :email by:

1. user.find_by(:id => 1).update_attribute email, "sample@foo.bar" <- ok
2. user.find_by(:id => 1).update_attributes :email => "sample@foo.bar" <- return me false

and there way update by:

@foo = user.find_by(:id => 1) foo.email = "sample@foo.bar" foo.save 

update_attribute skips validations. update_attributes returning false since it's not passing validation. double check user model validations , make sure under attr_accessible you've added email:

class user < activerecord::base   attr_accessible :email, :name # etc end 

also find don't have specify attribute, use integer:

@user = user.find(24) # find user id of 24  @user.email = "sample@foo.bar" @user.save  # or update_attributes can update multiple attributes @ once: @user.update_attributes(email: "sample@foo.bar", name: "bob")  # or update_attribute skips validations , can update 1 # attribute @ time. used specific situations: @user.update_attribute(:email, "sample@foo.bar")