Header not in Row 1 CSV Import Ruby Rails - ruby-on-rails

Question

I'm trying to import CSV files and the header row keeps moving around, sometimes it's in row 20, sometimes it's in 25, and so on, but the field 'SPIRIT Barcode' is always in the header and it's the only thing I'm interested in at this point. I'm saving it in "barcode".
How do I manipulate this to find the row 'SPIRIT Barcode' is in and use that as the header? (everything above the header can be ignored)
def self.import(file)
#b = []
CSV.foreach(file.path, headers: true) do |row|
entry = ZygReport.find_by(barcode: row['SPIRIT Barcode']) || new
entry.update({
:barcode => row['SPIRIT Barcode'],
})
entry.save!
#b << [entry.barcode]
end
end
Ignore the #b, that's for another function.

Answer 1

This code parses the file only once, reading it line by line and looking for SPIRIT Barcode.
Once the line is found, it removes the newline, and splits it to get an array of header names.
CSV.parse can be called on the file directly. Since it has already been read until the header, it will start at the correct line :
require 'csv'
sep = ';'
File.open('test.csv'){|file|
header = file.find{|line| line.include?('SPIRIT Barcode')}.chomp.split(sep)
CSV.parse(file, headers: header, col_sep: sep).each do |row|
p row
end
}
With test.csv as :
Ignore me
Ignore me
SPIRIT Barcode; B; C
1; 2; 3
4; 5; 6
It outputs :
#<CSV::Row "SPIRIT Barcode":"1" " B":" 2" " C":" 3">
#<CSV::Row "SPIRIT Barcode":"4" " B":" 5" " C":" 6">
It shouldn't be hard to adapt it to your data.

Answer 2

This is untested, but it's the general idea for what you're trying to do:
require 'csv'
header_found = false
File.foreach('path/to/file.csv') do |li|
next unless header_found || li['SPIRIT Barcode']
header_found = true
# start processing CSV...
CSV.parse(li) do |row|
# use row here...
end
end
You'll have to figure out what to do when the header is found if you want to keep track of the values.