Created
June 6, 2014 04:26
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Ruby hash array to CSV
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class Array | |
def to_csv(csv_filename="hash.csv") | |
require 'csv' | |
CSV.open(csv_filename, "wb") do |csv| | |
csv << first.keys # adds the attributes name on the first line | |
self.each do |hash| | |
csv << hash.values | |
end | |
end | |
end | |
end | |
# ex: [{a: 1, b: 2}, {a: 3, b: 4}].to_csv("hash.csv") |
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If the hashes aren't uniform then you will end up with data in the wrong columns. You should use values_at instead: