Ruby on rails turn string into date and compare dates -


given following model:

class person    field :dob, type: string #in form of yyyy-mm-dd  end

how write scope gets people have :dob values after, 2000-1-1? what's below:

scope :is_child, -> { where(:dob.to_date > "2000-1-1".to_date) }

you're storing date iso8601 formatted string , iso8601 date strings compare sensibly (i.e. string comparison matches corresponding date comparison). means can use simple string operations:

scope :is_child, -> { where(:dob.gt => '2000-01-01') }

you'd want use dynamic date based on current date instead of 2000-01-01 though, otherwise you'll have update code every year , that's error prone.


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