Setup Rails 8 w/ Postgres & Solid Cable, Cache & Queue (in a single db)

In order to use Solid cable, solid queue, solid cache in a single postgres database, set up the following:

database.yml

# PostgreSQL. Versions 9.3 and up are supported.
#
# Install the pg driver:
#   gem install pg
# On macOS with Homebrew:
#   gem install pg -- --with-pg-config=/usr/local/bin/pg_config
# On Windows:
#   gem install pg
#       Choose the win32 build.
#       Install PostgreSQL and put its /bin directory on your path.
#
# Configure Using Gemfile
# gem "pg"
#
default: &default
  adapter: postgresql
  encoding: unicode
  # For details on connection pooling, see Rails configuration guide
  # https://guides.rubyonrails.org/configuring.html#database-pooling
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>


development:
  <<: *default
  database: buildermethods_development

  # The specified database role being used to connect to PostgreSQL.
  # To create additional roles in PostgreSQL see `$ createuser --help`.
  # When left blank, PostgreSQL will use the default role. This is
  # the same name as the operating system user running Rails.
  #username: buildermethods

  # The password associated with the PostgreSQL role (username).
  #password:

  # Connect on a TCP socket. Omitted by default since the client uses a
  # domain socket that doesn't need configuration. Windows does not have
  # domain sockets, so uncomment these lines.
  #host: localhost

  # The TCP port the server listens on. Defaults to 5432.
  # If your server runs on a different port number, change accordingly.
  #port: 5432

  # Schema search path. The server defaults to $user,public
  #schema_search_path: myapp,sharedapp,public

  # Minimum log levels, in increasing order:
  #   debug5, debug4, debug3, debug2, debug1,
  #   log, notice, warning, error, fatal, and panic
  # Defaults to warning.
  #min_messages: notice

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  <<: *default
  database: buildermethods_test

# As with config/credentials.yml, you never want to store sensitive information,
# like your database password, in your source code. If your source code is
# ever seen by anyone, they now have access to your database.
#
# Instead, provide the password or a full connection URL as an environment
# variable when you boot the app. For example:
#
#   DATABASE_URL="postgres://myuser:mypass@localhost/somedatabase"
#
# If the connection URL is provided in the special DATABASE_URL environment
# variable, Rails will automatically merge its configuration values on top of
# the values provided in this file. Alternatively, you can specify a connection
# URL environment variable explicitly:
#
#   production:
#     url: <%= ENV["MY_APP_DATABASE_URL"] %>
#
# Read https://guides.rubyonrails.org/configuring.html#configuring-a-database
# for a full overview on how database connection configuration can be specified.
#

# Single database configuration for production
# All Solid Queue, Cache, and Cable tables are in the main database
production:
  <<: *default
  url: <%= ENV["DATABASE_URL"] %>

# Single database configuration for staging
# All Solid Queue, Cache, and Cable tables are in the main database
staging:
  <<: *default
  url: <%= ENV["DATABASE_URL"] %>

Cable.yml

# Async adapter only works within the same process, so for manually triggering cable updates from a console,
# and seeing results in the browser, you must do so from the web console (running inside the dev process),
# not a terminal started via bin/rails console! Add "console" to any action or any ERB template view
# to make the web console appear.
development:
  adapter: async

test:
  adapter: test

staging:
  adapter: solid_cable

production:
  adapter: solid_cable

cache.yml

default: &default
  store_options:
    # Cap age of oldest cache entry to fulfill retention policies
    # max_age: <%= 60.days.to_i %>
    max_size: <%= 256.megabytes %>
    namespace: <%= Rails.env %>

development:
  <<: *default

test:
  <<: *default

production:
  <<: *default

Update staging.rb & production.rb:

Remove this line:

config.solid_queue.connects_to = { database: { writing: :queue } }

Keep this line:

config.active_job.queue_adapter = :solid_queue

Add the solid tables to the primary database

Coppy the contents of these:

• db/queue_schema.rb - for all the Solid Queue tables

• db/cache_schema.rb - for the solid_cache_entries table

• db/cable_schema.rb - for the solid_cable_messages table

Into a new migration file called add_solid_tables_to_primary_database.rb

That will install all the necessary tables into the one and only database.

The queue, cache, and cable schema files can be deleted.