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Versions: 8
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Contents
module ActiveRecord
module Concerns
module Base
## This is used to provide base functionality to migrations
#########################################
#########################################
# Adapter
def adapter
ENV["DATABASE_ADAPTER"]
end
# Down
def down
drop_table table, if_exists: true
end
# UUID
def uuid(key=:id)
adapter == "sqlite3" ? {} : { key => :uuid }
end
# Table
def table
self.class.name.gsub!("Create", "").underscore
end
#########################################
#########################################
private
# http://stackoverflow.com/a/5665974/1143732
# Set "plugin" for UUID BEFORE using it
def setup_uuid
case adapter
when "mysql2"
execute("DROP TRIGGER IF EXISTS before_insert_#{table};") #http://stackoverflow.com/a/5945220/1143732
execute("CREATE TRIGGER before_insert_#{table} BEFORE INSERT ON associations FOR EACH ROW SET new.uuid = uuid();")
when "sqlite3"
# Nothing to do
when "postgresql"
enable_extension 'uuid-ossp' # => http://theworkaround.com/2015/06/12/using-uuids-in-rails.html#postgresql
else
raise NotImplementedError, "Unknown adapter type '#{adapter}'"
end
end
#########################################
#########################################
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems