Reimplement a794081

app/models/message.rb

@@ -50,6 +50,11 @@ class Status
   validates :operation, inclusion: { in: Operation.constants.map{ |c| Operation.const_get(c) },
                                      message: "%{value} is not a valid operation" }
 
+  # Instances will often be updated from inside transactions, outside of which
+  # any updates would not be visible. So, we use a different database
+  # connection.
+  establish_connection "#{Rails.env}_2".to_sym
+
   ##
   # @return [String] Console representation of the instance.
   #

app/models/task.rb

@@ -99,6 +99,11 @@ def self.to_s(status)
 
   before_save :constrain_progress
 
+  # Instances will often be updated from inside transactions, outside of which
+  # any updates would not be visible. So, we use a different database
+  # connection.
+  establish_connection "#{Rails.env}_2".to_sym
+
   ##
   # @return [Time,nil]
   #

config/database.yml

@@ -22,38 +22,44 @@ test_config = File.exist?(path) ? YAML.load(File.read(path)) : {}
 default: &default
   adapter:      postgresql
   encoding:     unicode
-  pool:         <%= ENV.fetch("RAILS_MAX_THREADS") { 10 } %>
+  pool:         <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
   timeout:      5000
   min_messages: warning
   template:     template0
   query_cache:  1000 # default in Rails 7.1 is 100
 
-development:
+development: &development
   <<: *default
   host:     <%= dev_config['primary_db'] ? dev_config['primary_db']['host'] : nil %>
   port:     <%= dev_config['primary_db'] ? dev_config['primary_db']['port'] : nil %>
   database: <%= dev_config['primary_db'] ? dev_config['primary_db']['database'] : nil %>
   username: <%= dev_config['primary_db'] ? dev_config['primary_db']['username'] : nil %>
   password: <%= dev_config['primary_db'] ? dev_config['primary_db']['password'] : nil %>
 
+development_2:
+  <<: *development
+
 # 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:
+test: &test
   <<: *default
   host:     <%= test_config['primary_db'] ? test_config['primary_db']['host'] : nil %>
   port:     <%= test_config['primary_db'] ? test_config['primary_db']['port'] : nil %>
   database: <%= test_config['primary_db'] ? test_config['primary_db']['database'] : nil %>
   username: <%= test_config['primary_db'] ? test_config['primary_db']['username'] : nil %>
   password: <%= test_config['primary_db'] ? test_config['primary_db']['password'] : nil %>
 
+test_2:
+  <<: *test
+
 #############################################################################
 #                   ENVIRONMENTS USING ENCRYPTED CONFIG                     #
 #############################################################################
 
 <% db = Rails.application.credentials.dig(:primary_db) %>
 
-demo:
+demo: &demo
   <<: *default
   pool:     <%= 2 * ENV.fetch("RAILS_MAX_THREADS") { 5 }.to_i %>
   host:     <%= db ? db[:host] : nil %>
@@ -62,11 +68,17 @@ demo:
   username: <%= db ? db[:username] : nil %>
   password: <%= db ? db[:password] : nil%>
 
-production:
+demo_2:
+  <<: *demo
+
+production: &production
   <<: *default
   pool:     <%= 2 * ENV.fetch("RAILS_MAX_THREADS") { 5 }.to_i %>
   host:     <%= db ? db[:host] : nil %>
   port:     <%= db ? db[:port] : nil %>
   database: <%= db ? db[:database] : nil %>
   username: <%= db ? db[:username] : nil %>
   password: <%= db ? db[:password] : nil %>
+
+production_2:
+  <<: *production