54 lines
1.8 KiB
Ruby
54 lines
1.8 KiB
Ruby
module JamRuby
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class Country < ActiveRecord::Base
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self.table_name = 'countries'
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def self.get_all()
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self.order('countryname asc').all
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end
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def self.import_from_iso3166(file)
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# File iso3166.csv
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# Format:
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# countrycode,countryname
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# what this does is not replace the contents of the table, but rather update the specified rows with the names.
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# any rows not specified have the countryname reset to be the same as the countrycode.
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self.transaction do
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self.connection.execute "update #{self.table_name} set countryname = countrycode"
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File.open(file, 'r:ISO-8859-1') do |io|
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saved_level = ActiveRecord::Base.logger ? ActiveRecord::Base.logger.level : 0
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count = 0
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ncols = 2
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csv = ::CSV.new(io, {encoding: 'ISO-8859-1', headers: false})
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csv.each do |row|
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raise "file does not have expected number of columns (#{ncols}): #{row.length}" unless row.length == ncols
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countrycode = row[0]
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countryname = row[1]
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stmt = "UPDATE #{self.table_name} SET countryname = #{MaxMindIsp.quote_value(countryname)} WHERE countrycode = #{MaxMindIsp.quote_value(countrycode)}"
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self.connection.execute stmt
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count += 1
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if ActiveRecord::Base.logger and ActiveRecord::Base.logger.level < Logger::INFO
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ActiveRecord::Base.logger.debug "... logging updates to #{self.table_name} suspended ..."
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ActiveRecord::Base.logger.level = Logger::INFO
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end
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end
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if ActiveRecord::Base.logger
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ActiveRecord::Base.logger.level = saved_level
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ActiveRecord::Base.logger.debug "updated #{count} records in #{self.table_name}"
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end
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end # file
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end # transaction
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end
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end
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end
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