Problem displaying usernames in my flash [: notification] - Agile Web Development With Rails - Chapter 11
I cannot figure out what I am doing wrong here.
I can't seem to get # {@user.name} to work in my flash [: notice]
Everything else works fine, I can add new users, but when I add a new user instead of saying "User John Doe was created successfully" it says "User # {@user.name" was created successfully. "
I am currently in the depot application: depot_p / app / controllerlers / users_controller.rb to work.
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This is due to string interpolation which is only for double quoted strings, it has nothing to do with flash.
You can substitute the value of any Ruby expression in a double-quoted string using a sequence #{ expr }
. If the expression is just a global, class variable, or instance variable, you can omit the curly braces.
"Seconds/day: #{24*60*60}" » Seconds/day: 86400
"#{'Ho! '*3}Merry Christmas" » Ho! Ho! Ho! Merry Christmas
"This is line #$." » This is line 3
For more information, Programming Ruby is a free online Ruby book.
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Ok I figured it out.
Flash ads must be in double quotes, not single quotes. I have had:
flash [: notice] = 'User # {@user.name} was created successfully.'
When it should have been flash [: notice] = "User # {@user.name} was created successfully."
This is a tricky detail for a complete noob. FYI for others.
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