CODEWITHSUNDEEP
rubycsv
wise_gremlin
wise_gremlin

Reputation: 453

How to rename CSV headers in Ruby?

I have a CSV file and I want to merge these records into an existing CSV file. However, the two files have headers that are named differently. How can I cleanly and efficiently rename the CSV headers so that the match the file I'm merging to?

Upvotes: 4

Views: 1648

Answers (1)

wise_gremlin
wise_gremlin

Reputation: 453

Answer:

CSV::HeaderConverters[:map_to_main] = lambda do |header|
  # work your magic here
  header
end
CSV.open(file,
  headers: true,
  header_converters: :map_to_main).to_a.map(&:to_hash)

Upvotes: 8

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