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# frozen_string_literal: true
module ActiveRecord
class DatabaseConfigurations
# 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
#
# * <tt>:env_name</tt> - The Rails environment, ie "development".
# * <tt>:spec_name</tt> - 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".
# * <tt>:url</tt> - The database URL.
# * <tt>:config</tt> - The config hash. This is the hash that contains the
# database adapter, name, and other important information for database
# connections.
class UrlConfig < DatabaseConfig
attr_reader :url, :config
def initialize(env_name, spec_name, url, config = {})
super(env_name, spec_name)
@config = build_config(config, url)
@url = url
end
def url_config? # :nodoc:
true
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+.
def replica?
config["replica"]
end
# The migrations paths for a database configuration. If the
# +migrations_paths+ key is present in the config, +migrations_paths+
# will return its value.
def migrations_paths
config["migrations_paths"]
end
private
def build_url_hash(url)
if url.nil? || /^jdbc:/.match?(url)
{ "url" => url }
else
ActiveRecord::ConnectionAdapters::ConnectionSpecification::ConnectionUrlResolver.new(url).to_hash
end
end
def build_config(original_config, url)
hash = build_url_hash(url)
if original_config[env_name]
original_config[env_name].merge(hash)
else
original_config.merge(hash)
end
end
end
end
end
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