method

resolve_pool_config

v6.1.7.7 - Show latest stable - 0 notes - Class: ActiveRecord::ConnectionAdapters::ConnectionHandler

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0
2.2.1
2.3.8
3.0.0
3.0.9
3.1.0
3.2.1
3.2.8
3.2.13
4.0.2
4.1.8
4.2.1
4.2.7
4.2.9
5.0.0.1
5.1.7
5.2.3
6.0.0
6.1.3.1 (0)
6.1.7.7 (0)
7.0.0 (0)
7.1.3.2 (0)
7.1.3.4 (0)
What's this?

resolve_pool_config(config, owner_name) private

Returns an instance of PoolConfig for a given adapter. Accepts a hash one layer deep that contains all connection information.

Example

config = { "production" => { "host" => "localhost", "database" => "foo", "adapter" => "sqlite3" } }
pool_config = Base.configurations.resolve_pool_config(:production)
pool_config.db_config.configuration_hash
# => { host: "localhost", database: "foo", adapter: "sqlite3" }

Show source

# File activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb, line 1195
        def resolve_pool_config(config, owner_name)
          db_config = Base.configurations.resolve(config)

          raise(AdapterNotSpecified, "database configuration does not specify adapter") unless db_config.adapter

          # Require the adapter itself and give useful feedback about
          #   1. Missing adapter gems and
          #   2. Adapter gems' missing dependencies.
          path_to_adapter = "active_record/connection_adapters/#{db_config.adapter}_adapter"
          begin
            require path_to_adapter
          rescue LoadError => e
            # We couldn't require the adapter itself. Raise an exception that
            # points out config typos and missing gems.
            if e.path == path_to_adapter
              # We can assume that a non-builtin adapter was specified, so it's
              # either misspelled or missing from Gemfile.
              raise LoadError, "Could not load the '#{db_config.adapter}' Active Record adapter. Ensure that the adapter is spelled correctly in config/database.yml and that you've added the necessary adapter gem to your Gemfile.", e.backtrace

              # Bubbled up from the adapter require. Prefix the exception message
              # with some guidance about how to address it and reraise.
            else
              raise LoadError, "Error loading the '#{db_config.adapter}' Active Record adapter. Missing a gem it depends on? #{e.message}", e.backtrace
            end
          end

          unless ActiveRecord::Base.respond_to?(db_config.adapter_method)
            raise AdapterNotFound, "database configuration specifies nonexistent #{db_config.adapter} adapter"
          end

          ConnectionAdapters::PoolConfig.new(owner_name, db_config)
        end

resolve_pool_config

Related methods

Example