NameError: uninitialized constant ActiveRecord::ConnectionAdapters::PostgreSQL::ColumnDefinition with gem activerecord-postgis-adapter

Question

I want add to an existing data base the postgis extension with rails as an environment. I have identified the rgeo gem associated with the activerecord-postgis-adapter gem

I did the classic bundle install

I have followed carefully the indications by adding to my database.yml

development:
  adapter:            postgis
  schema_search_path: public

But when i launch : rake db:gis:setup

i get this error :

NameError: uninitialized constant ActiveRecord::ConnectionAdapters::PostgreSQL::ColumnDefinition
[...]
ruby-2.6.3/gems/activerecord-postgis-adapter-3.1.2/lib/active_record/connection_adapters/postgis/spatial_table_definition.rb:46:in `<module:PostGIS>'

I have tried to install manually the postgis extension directly to my postgresql data base without success.

I have found this solution where the author of the gem tells us it is fixed in the latest commit but did not help so much.

My versions :

• ruby 2.6.3
• active-record 6.0.0
• postgresql 11.5

Answer 1

NameError: uninitialized constant >ActiveRecord::ConnectionAdapters::PostgreSQL::ColumnDefinition
[...]
ruby-2.6.3/gems/activerecord-postgis-adapter-3.1.2/lib/active_record/connection_adapters/postgis/spatial_table_definition.rb:46:in `<module:PostGIS>'

It looks like your version of activerecord-postgis-adapter is 3.1.2, but the current version is 6.0.1. Could you try updating to the latest version and see if that works.