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  • PostGIS: Using Geospatial Data with Rails

PostGIS: Using Geospatial Data with Rails

English — 日本語に切り替える

Last updated January 25, 2021

Table of Contents

  • Setting up PostGIS with Rails

PostGIS is available in public beta. The beta is available on all Production tier databases and currently supports PostGIS version 2.0. It is available on the Dev or Basic Hobby tier plans with Postgres version 9.4 and above. For Postgres 9.2 databases PostGIS is only available for those provisioned after April 20, 2013. To enable PostGIS once connected to your PostgreSQL 9.2 database run:

CREATE EXTENSION postgis;

Setting up PostGIS with Rails

To use PostgreSQL as your database in Ruby applications you will need to include the activerecord-postgis-adapter gem in your Gemfile.

To fully take advantage of PostGIS with Rails on Heroku you’ll need to configure your app with a custom buildpack which includes the appropriate system dependencies. This buildpack includes that support. Be sure to deploy the buildpack before building any gems.

gem 'activerecord-postgis-adapter'

Run bundle install to download and resolve all dependencies. For more information on getting setup with activerecord-postgis-adapter you can visit their docs.

Once you’ve installed the gem you will need to change the adapter to “postgis”. You can see how to modify your Rails connection adapter here.

Keep reading

  • Postgres Special Topics

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