A UrlConfig object is created for each database configuration entry that is created from a URL. This can either be a URL string or a hash with a URL in place of the config hash.
A URL config:
postgres://localhost/foo
Becomes:
#<ActiveRecord::DatabaseConfigurations::UrlConfig:0x00007fdc3238f340
  @env_name="default_env", @spec_name="primary",
  @config={"adapter"=>"postgresql", "database"=>"foo", "host"=>"localhost"},
  @url="postgres://localhost/foo">
Options
- 
:env_name- The Rails environment, ie “development”. - 
:spec_name- The specification name. In a standard two-tier database configuration this will default to “primary”. In a multiple database three-tier database configuration this corresponds to the name used in the second tier, for example “primary_readonly”. - 
:url- The database URL. - 
:config- The config hash. This is the hash that contains the database adapter, name, and other important information for database connections. 
Methods
Attributes
| [R] | config | |
| [R] | url | 
Class Public methods
new(env_name, spec_name, url, config = {})
📝 Source code
# File activerecord/lib/active_record/database_configurations/url_config.rb, line 34
      def initialize(env_name, spec_name, url, config = {})
        super(env_name, spec_name)
        @config = build_config(config, url)
        @url = url
      end
              
                🔎 See on GitHub
              
            Instance Public methods
migrations_paths()
The migrations paths for a database configuration. If the migrations_paths key is present in the config, migrations_paths will return its value.
📝 Source code
# File activerecord/lib/active_record/database_configurations/url_config.rb, line 54
      def migrations_paths
        config["migrations_paths"]
      end
              
                🔎 See on GitHub
              
            replica?()
Determines whether a database configuration is for a replica / readonly connection. If the replica key is present in the config, replica? will return true.
📝 Source code
# File activerecord/lib/active_record/database_configurations/url_config.rb, line 47
      def replica?
        config["replica"]
      end
              
                🔎 See on GitHub