How to write if-condition in Haml?
In haml two operators are used for ruby code.
=
is used for ruby code which is evaluated and gets inserted into document.
Example:
= form_for @user
-
is used for ruby code which is evaluated and NOT get inserted into document.
Example:
- if @user.signed_in?
= "Hi"
- else
= "Please sign in!"
HAML is indentation based , and the parser can be tricky.You don't need to use "- end" in Haml. Use indentation instead.In Haml,a block begins whenever the indentation is increased after a Ruby evaluation command. It ends when the indentation decreases.Sample if else block as follows.
- if condition
= something
- else
= something_else
A practical example
- if current_user
= link_to 'Logout', logout_path
- else
= link_to 'Login', login_path
Edit : If you just want to use if condition then
- if current_user
= link_to 'Logout', logout_path