A HashConfig object is created for each database configuration entry that is created from a hash.
A hash config:
{ "development" => { "database" => "db_name" } }
Becomes:
#<ActiveRecord::DatabaseConfigurations::HashConfig:0x00007fd1acbded10 @env_name="development", @spec_name="primary", @config={"database"=>"db_name"}>
:env_name
- The Rails environment, i.e. “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”.
:config
- The config hash. This is the hash that contains the database adapter, name, and other important information for database connections.
# File activerecord/lib/active_record/database_configurations/hash_config.rb, line 30 def initialize(env_name, spec_name, config) super(env_name, spec_name) @config = config end
# File activerecord/lib/active_record/database_configurations/hash_config.rb, line 45 def migrations_paths config["migrations_paths"] end
The migrations paths for a database configuration. If the migrations_paths
key is present in the config, migrations_paths
will return its value.
# File activerecord/lib/active_record/database_configurations/hash_config.rb, line 38 def replica? config["replica"] end
Determines whether a database configuration is for a replica / readonly connection. If the replica
key is present in the config, replica?
will return true
.
© 2004–2019 David Heinemeier Hansson
Licensed under the MIT License.