diff options
Diffstat (limited to 'app/models/concerns/uniquify.rb')
| -rw-r--r-- | app/models/concerns/uniquify.rb | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/app/models/concerns/uniquify.rb b/app/models/concerns/uniquify.rb index a7fe5951b6e..549a76da20e 100644 --- a/app/models/concerns/uniquify.rb +++ b/app/models/concerns/uniquify.rb @@ -1,13 +1,21 @@ +# Uniquify +# +# Return a version of the given 'base' string that is unique +# by appending a counter to it. Uniqueness is determined by +# repeated calls to the passed block. +# +# You can pass an initial value for the counter, if not given +# counting starts from 1. +# +# If `base` is a function/proc, we expect that calling it with a +# candidate counter returns a string to test/return. class Uniquify - # Return a version of the given 'base' string that is unique - # by appending a counter to it. Uniqueness is determined by - # repeated calls to the passed block. - # - # If `base` is a function/proc, we expect that calling it with a - # candidate counter returns a string to test/return. + def initialize(counter = nil) + @counter = counter + end + def string(base) @base = base - @counter = nil increment_counter! while yield(base_string) base_string |