s|Twenty.connection|Twenty.db|g

server/lib/twenty/server.rb

@@ -47,7 +47,7 @@ module Twenty
   #
   # @return [void]
   def self.establish_connection(path:)
-    @connection = Sequel.connect(
+    @db = Sequel.connect(
       adapter: "sqlite",
       database: path
     )
@@ -55,10 +55,10 @@ module Twenty
 
   ##
   # @return [Sequel::Database::SQLite]
-  #  Returns the connection to a database
+  #  Returns a database object
-  def self.connection
+  def self.db
-    establish_connection unless @connection
+    establish_connection unless @db
-    @connection
+    @db
   end
 
   require "sequel"

server/lib/twenty/server/migration.rb

@@ -14,13 +14,13 @@ module Twenty::Migration
   # Run migrations
   # @return [void]
   def self.run!(options = {})
-    Sequel::Migrator.run(Twenty.connection, migrations_path, options)
+    Sequel::Migrator.run(Twenty.db, migrations_path, options)
   end
 
   ##
   # @return [Boolean]
   #  Returns true when there are pending migrations
   def self.pending_migrations?
-    ! Sequel::Migrator.is_current?(Twenty.connection, migrations_path)
+    ! Sequel::Migrator.is_current?(Twenty.db, migrations_path)
   end
 end

server/lib/twenty/server/migration/3_add_color_to_projects.rb

@@ -2,7 +2,7 @@
 
 Sequel.migration do
   column_exists = ->(table, column) do
-    schema = Twenty.connection.schema(table)
+    schema = Twenty.db.schema(table)
     schema.find { |(key,_)| key == column }
   end