How to validate a aray in model?
In form I have a multiple select option, that returns a array
(in model I convert array to string and save it to database)
array can only have values ['A','B','C','D','E','']
So how can I valdate that some value is not a X or Y ?
The model code is:
attr_accessor :categories
def categories if self.category @categories = self.category.split else @categories = [''] end end
def categories=(xxx) @categories = xxx return if xxx.blank? self.category = xxx.join(" ") end