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By: a guest on May 7th, 2012  |  syntax: None  |  size: 0.39 KB  |  hits: 12  |  expires: Never
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  1. validates_numericality_of
  2. :allow_nil επιτρεπει να μην βαλουμε καποια τιμη σε αυτο το πεδιο
  3. :only_integer:  μονο ακεραιοι
  4. :greater_than, :greater_than_or_equal_to, :equal_to, :less_than, and :less_than_or_ equal_to: These parameters allow you to specify not only that the attribute is a number but that it fits within a specified range:
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