GeojsonModel
Geojson as a model. Provides simple objects to manipulate geojson data.
Usage
g = GeojsonModel::Geometry.new(type: 'Point', coordinates: [0, 0]) # => #<GeojsonModel::Geometry ...>
g.to_h # => { type: 'Point', coordinates: [0, 0] }
g.to_json # => "{"type":"Point","coordinates":[0,0]}"
f = GeojsonModel::Feature.new(properties: {foo: 'bar'}, geometry: g) # => #<GeojsonModel::Feature ...>
f.to_h # => { type:'Feature', geometry:#<GeojsonModel::Geometry ...>, properties:{foo: 'bar'} }
f.to_json # => "{"type":"Feature","geometry":{"type":"Point","coordinates":[0,0]},"properties":{"foo":"bar"}}"
gc = GeojsonModel::GeometryCollection.new(geometries: [g]) # => #<GeojsonModel::Feature ...>
gc.to_h # => { type: 'GeometryCollection', geometries: [#<GeojsonModel::Geometry ...>] }
gc.to_json # => "{"type":"GeometryCollection","geometries":[{"type":"Point","coordinates":[0,0]}]}"
fc = GeojsonModel::FeatureCollection.new(features: [f]) # => #<GeojsonModel::Feature ...>
fc.to_h # => { type: 'FeatureCollection', features: [#<GeojsonModel::Feature geometry=#<GeojsonModel::Geometry ...> ...>] }
fc.to_json # => "{"type":"FeatureCollection","features":[{"type":"Feature","geometry":{"type":"Point","coordinates":[0,0]},"properties":{"foo":"bar"}}]}"
g.to_feature # => #<GeojsonModel::Feature ...>
f.to_geometry # => #<GeojsonModel::Geometry ...>
gc.to_feature_collection # => #<GeojsonModel::FeatureCollection ...>
fc.to_geometry_collection # => #<GeojsonModel::GeometryCollection ...>Plays well with ActiveRecord, PostgreSQL jsonb (or json) data type and geojsonlint.
# db/migrations/create_places.rb
create_table :places do |t|
t.jsonb :geojson # or t.json :geojson
end
# models/place.rb
class Place < ActiveRecord::Base
validates :geojson, geojson: true
end
p = Place.new
p.geojson = GeojsonModel::Feature.new(geometry: GeojsonModel::Geometry.new).to_json
p.valid? # => trueInstallation
Add this line to your application's Gemfile:
gem 'geojson_model'And then execute:
$ bundle
Or install it yourself as:
$ gem install geojson_model
Development
After checking out the repo, run bin/setup to install dependencies. Then, run bin/console for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release to create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.
Contributing
- Fork it ( https://github.com/can-explore/geojson_model/fork )
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create a new Pull Request
- Thank you!