worlddb-models¶ ↑
worlddb-models gem - world.db schema 'n' models for easy (re)use
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home :: github.com/worlddb/world.db
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rdoc :: rubydoc.info/gems/worlddb-models
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forum :: groups.google.com/group/openmundi
Usage Models¶ ↑
Class Model Diagrams
Everything is a place.
Country
Model - Example:
at = Country.find_by! key: 'at' at.name # => 'Austria' at.pop # => 8_414_638 at.area # => 83_871 at.states.count # => 9 at.states # => [ 'Wien', 'Niederösterreich', 'Oberösterreich', ... ] at.cities.by_pop # => [ 'Wien', 'Graz', 'Linz', 'Salzburg', 'Innsbruck' ... ]
City
Model - Example:
c = City.find_by! key: 'wien' c.name # => 'Wien' c.country.name # => 'Austria' c.country.continent.name # => 'Europe' la = City.find_by! key: 'losangeles' la.name # => 'Los Angeles' la.state.name # => 'California' la.state.key # => 'ca' la.country.name # => 'United States' la.country.key # => 'us' la.country.continent.name # => 'North America'
Tag
Model - Example:
euro = Tag.find_by! key: 'euro' euro.countries.count # => 17 euro.countries # => ['Austria, 'Belgium', 'Cyprus', ... ] flanders = Tag.find_by! key: 'flanders' flanders.states.count # => 5 flanders.states # => ['Antwerpen', 'Brabant Wallon', 'Limburg', 'Oost-Vlaanderen', 'West-Vlaanderen'] flanders.states.first.country.name # => 'Belgium'
and so on.
License¶ ↑
The worlddb-models
scripts are dedicated to the public domain. Use it as you please with no restrictions whatsoever.
Questions? Comments?¶ ↑
Send them along to the Open Mundi (world.db) Database Forum/Mailing List. Thanks!