install postgis on postgresql on rails on mac -- working

gistfile1.txt

To get PostGIS running on mac with postgres.app on rails----

- update XCode
- brew install postgis
- gem install rgeo -- --with-geos-dir=/usr/lib
- database.yml should look like:
    development:
      adapter: postgis
      encoding: unicode
      postgis_extension: true
      schema_search_path: public,postgis
      pool: 5
      database: gisdatabase
      host: localhost
- go into psql: `psql gisdatabase` (DO NOT JUST GO INTO PSQL, SELECT THE DATABASE YOU’RE USING, IT WON’T WORK OTHERWISE)
    DROP EXTENSION PostGIS; (if exists)
    CREATE SCHEMA postgis;
    CREATE EXTENSION PostGIS WITH SCHEMA postgis;
    GRANT ALL ON postgis.geometry_columns TO PUBLIC;
    GRANT ALL ON postgis.spatial_ref_sys TO PUBLIC;
    
*** it should work ***

AND

gem install ffi-geos