Created
November 14, 2013 13:06
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parsing and validating dates in ruby. Have an icky feeling
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def parse_date(date) | |
if date.is_a?(Integer) | |
parse_date_from_timestamp(date) | |
elsif date.is_a?(String) | |
if date.to_i.to_s == date | |
parse_date_from_timestamp(date.to_i) | |
else | |
parse_date_from_string(date) | |
end | |
elsif date.acts_like?(:date) || date.acts_like?(:time) | |
# acts_like(:date || :time) defined in activesupport/core_ext | |
date | |
else | |
raise ArgumentError, "date can be an timestamp or a string" | |
end | |
end | |
def parse_date_from_timestamp(timestamp) | |
Time.at(timestamp) | |
end | |
def parse_date_from_string(date) | |
# can raise TypeError | |
# if for eq. we pass in a symbol - needs string | |
# or can raise `ArgumentError: invalid date` | |
# in case date is invalid | |
Date.parse(date) | |
end |
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