ruby on rails - Run rake db:drop without failure if database doesn't exist -


this comment says:

db:drop can run without failure when db not exist

this need: need run db:drop without throwing exception or halt whole process if database doesn't exist, delete database if exists or nothing.

how can that? how can tell db:drop not destroy life if database doesn't exist?

this code i'm experiencing problem (it help):

namespace :db   task import: :environment     rake::task["db:drop"].invoke # if database doesn't exist, whole import process terminates!     rake::task["db:create"].invoke     rake::task["db:migrate"].invoke     database_config = rails.configuration.database_configuration[rails.env]     system "psql --username=#{database_config['username']} #{database_config['database']} < postgresql.sql"   end end

why can't go simple exception handling

namespace :db   task import: :environment     begin       rake::task["db:drop"].invoke # if database doesn't exist, whole import process terminates!       rake::task["db:create"].invoke       rake::task["db:migrate"].invoke       database_config = rails.configuration.database_configuration[rails.env]       system "psql --username=#{database_config['username']} #{database_config['database']} < postgresql.sql"    rescue exception => e      p "the exception #{e.message}"    end   end end

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