class RedshiftCsv::Output
Attributes
file_path[R]
query[R]
Public Class Methods
new(query, file_path)
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# File lib/redshift_csv/output.rb, line 5 def initialize(query, file_path) @query = query @file_path = file_path end
Public Instance Methods
generate_csv()
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# File lib/redshift_csv/output.rb, line 22 def generate_csv CSV.open(file_path, "wb") do |csv| csv << header query_results.each do |result| csv << result.values end end end
header()
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# File lib/redshift_csv/output.rb, line 14 def header results? ? query_results.first.keys : [] end
query_results()
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# File lib/redshift_csv/output.rb, line 10 def query_results @query_results ||= Connection.new.run(query) end
results?()
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# File lib/redshift_csv/output.rb, line 18 def results? query_results.ntuples > 0 end