Class: CreateGeonamesFeatures

Inherits:
ActiveRecord::Migration
  • Object
show all
Defined in:
lib/generators/geonames_dump/templates/db/migrate/create_geonames_features.rb

Class Method Summary collapse

Class Method Details

.down ⇒ Object 



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# File 'lib/generators/geonames_dump/templates/db/migrate/create_geonames_features.rb', line 61

def self.down
  drop_table :geonames_features
end

.up ⇒ Object

geonameid : integer id of record in geonames database name : name of geographical point (utf8) varchar(200) asciiname : name of geographical point in plain ascii characters, varchar(200) alternatenames : alternatenames, comma separated varchar(4000) (varchar(5000) for SQL Server) latitude : latitude in decimal degrees (wgs84) longitude : longitude in decimal degrees (wgs84) feature class : see www.geonames.org/export/codes.html, char(1) feature code : see www.geonames.org/export/codes.html, varchar(10) country code : ISO-3166 2-letter country code, 2 characters cc2 : alternate country codes, comma separated, ISO-3166 2-letter country code, 60 characters admin1 code : fipscode (subject to change to iso code), isocode for the us and ch, see file admin1Codes.txt for display names of this code; varchar(20) admin2 code : code for the second administrative division, a county in the US, see file admin2Codes.txt; varchar(80) admin3 code : code for third level administrative division, varchar(20) admin4 code : code for fourth level administrative division, varchar(20) population : bigint (4 byte int) elevation : in meters, integer gtopo30 : average elevation of 30’x30’ (ca 900mx900m) area in meters, integer timezone : the timezone id (see file timeZone.txt) modification date : date of last modification in yyyy-MM-dd format



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# File 'lib/generators/geonames_dump/templates/db/migrate/create_geonames_features.rb', line 22

def self.up
  create_table :geonames_features do |t|
    t.integer :geonameid
    t.string :name
    t.string :asciiname
    t.string :alternatenames
    t.float :latitude
    t.float :longitude
    t.string :feature_class
    t.string :feature
    t.string :country
    t.string :cc2
    t.string :admin1
    t.string :admin2
    t.string :admin3
    t.string :admin4
    t.integer :population
    t.integer :elevation
    t.integer :gtopo30
    t.string :timezone
    t.timestamp :modification
    t.string :type
    # OPTIMIZE: create another table for all names (alternate names)
    t.string :asciiname_first_letters


    t.timestamps
  end

  add_index :geonames_features, :geonameid
  add_index :geonames_features, :name
  add_index :geonames_features, :asciiname
  add_index :geonames_features, :country
  add_index :geonames_features, :population
  add_index :geonames_features, :admin1
  add_index :geonames_features, :type
  add_index :geonames_features, :asciiname_first_letters
end