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module DBI
# DriverHandles, while not directly exposed, are essentially the backend
# for the facade that many DBI root-level methods communicate with.
class DriverHandle < Handle
attr_writer :driver_name
# Connect to the database. The DSN will have been parsed at this point
# and the named parameters should need no explanation.
#
# If a block is provided to DBI.connect, the connected DatabaseHandle
# will be provided as the first argument to the block, and the
# DatabaseHandle will be disconnected upon block exit.
#
def connect(db_args, user, auth, params)
user = @handle.default_user[0] if user.nil?
auth = @handle.default_user[1] if auth.nil?
# TODO: what if only one of them is nil?
#if user.nil? and auth.nil? then
# user, auth = @handle.default_user
#end
params ||= {}
new_params = @handle.default_attributes
params.each {|k,v| new_params[k] = v}
if params.has_key?(:_convert_types)
@convert_types = params[:_convert_types]
end
db = @handle.connect(db_args, user, auth, new_params)
dbh = DatabaseHandle.new(db, @convert_types)
# FIXME trace
# dbh.trace(@trace_mode, @trace_output)
dbh.driver_name = @driver_name
if block_given?
begin
yield dbh
ensure
dbh.disconnect if dbh.connected?
end
else
return dbh
end
end
# See BaseDriver#data_sources.
def data_sources
@handle.data_sources
end
# See BaseDriver#disconnect_all.
def disconnect_all
@handle.disconnect_all
end
end
end
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