57 lines
2.2 KiB
Ruby
57 lines
2.2 KiB
Ruby
module JamRuby
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class Region < ActiveRecord::Base
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self.table_name = 'regions'
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def self.get_all(country)
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self.where(countrycode: country).order('regionname asc').all
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end
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def self.import_from_xx_region(countrycode, file)
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# File xx_region.csv
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# Format:
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# region,regionname
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# what this does is not replace the contents of the table, but rather update the specifies rows with the names.
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# any rows not specified are left alone. the parameter countrycode denote the country of the region (when uppercased)
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raise "countrycode (#{MaxMindIsp.quote_value(countrycode)}) is missing or invalid (it must be two characters)" unless countrycode and countrycode.length == 2
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countrycode = countrycode.upcase
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self.transaction do
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self.connection.execute "update #{self.table_name} set regionname = region where countrycode = #{MaxMindIsp.quote_value(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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region = row[0]
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regionname = row[1]
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stmt = "UPDATE #{self.table_name} SET regionname = #{MaxMindIsp.quote_value(regionname)} WHERE countrycode = #{MaxMindIsp.quote_value(countrycode)} AND region = #{MaxMindIsp.quote_value(region)}"
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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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