Class: FreeZipcodeData::CountryTable

Inherits:
DbTable
  • Object
show all
Defined in:
lib/free_zipcode_data/country_table.rb

Constant Summary

Constants inherited from DbTable

DbTable::ISSUE_URL

Instance Attribute Summary

Attributes inherited from DbTable

#database, #tablename

Instance Method Summary collapse

Methods inherited from DbTable

#initialize, #update_progress

Constructor Details

This class inherits a constructor from FreeZipcodeData::DbTable

Instance Method Details

#build ⇒ Object 



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# File 'lib/free_zipcode_data/country_table.rb', line 7

def build
  schema = <<-SQL
    create table #{tablename} (
      id integer not null primary key,
      alpha2 varchar(2) not null,
      alpha3 varchar(3),
      iso varchar(3),
      name varchar(255) not null
    )
  SQL
  database.execute_batch(schema)

  ndx = <<-SQL
    CREATE UNIQUE INDEX "main"."unique_country_alpha2"
    ON #{tablename} (alpha2 COLLATE NOCASE ASC);
  SQL
  database.execute_batch(ndx)
end

#write(row) ⇒ Object 



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# File 'lib/free_zipcode_data/country_table.rb', line 26

def write(row)
  country_hash = country_lookup_table[row[:country]]

  sql = <<-SQL
    INSERT INTO countries (alpha2, alpha3, iso, name)
    VALUES ('#{row[:country]}',
      '#{country_hash[:alpha3]}',
      '#{country_hash[:iso]}',
      '#{country_hash[:name]}')
  SQL

  begin
    database.execute(sql)
  rescue SQLite3::ConstraintException
    # Swallow duplicates
  end

  update_progress
end