问题
I created an instance variable (@user) in the model of a mailer and want to access it in the view? But it's giving me an an error (@user = nil). What's the best way to pass a variable to view (the email body)?
Thanks, Chirag
回答1:
If you want to access an instance variable in your mailer template then in your mailer model add
@body[:user] = user_object
The above would create an instance variable @user that can be accessed in your view. You should be able to access user object in your mailer view by doing
@user
The docs here have examples of alternative ways if you are using multiple formats (text/html).
回答2:
I Rails 3 the process is similar:
@user = user_object
The above would create an instance variable @user that can be accessed in your view. You should be able to access user object in your mailer view by doing
@user
Note that you need to set this variable before the
mail(:from => "info@domain.info", :to => recipient, :subject => "Subject")
回答3:
To pass a variable to the view/email body, you send them in via the body method :-) So, for example, body :account => recipient would result in an instance variable @account with the value of recipient being accessible in the view.
来源：https://stackoverflow.com/questions/2122320/how-do-you-use-an-instance-variable-with-mailer-in-ruby-on-rails