Sha256: aca6099b46915e2b622575d3f1aa392f126549b0f3eef07f606a2951c6b11b40
Contents?: true
Size: 1013 Bytes
Versions: 7
Compression:
Stored size: 1013 Bytes
Contents
require 'csv'
module Sources
# Describes a CSV source, a file with csv in it.
# Give it a sequence of field names and a file option with the filename.
#
class NoCSVFileGiven < StandardError; end
class CSV < Base
attr_reader :file_name, :field_names
def initialize *field_names, options
@field_names = field_names
@file_name = Hash === options && options[:file] || raise_no_file_given(field_names)
end
#
#
def raise_no_file_given field_names
raise NoCSVFileGiven.new field_names.join(', ')
end
# Harvests the data to index.
#
def harvest _, field
index = field_names.index field.name
get_data do |ary|
indexed_id = ary.shift.to_i
text = ary[index]
next unless text
text.force_encoding 'utf-8' # TODO Still needed?
yield indexed_id, text
end
end
#
#
def get_data &block
::CSV.foreach file_name, &block
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems