Grails Many-To-Many relationship

Grails Many-To-Many relationship

http://stackoverflow.com/questions/5947408/overcoming-no-owner-defined-between-domain-classes-in-grails-many-to-many-rela

http://stackoverflow.com/questions/6699029/criteria-many-to-many-with-custom-join-table-domain

https://grails.org/Many-to-Many+Mapping+without+Hibernate+XML

http://stackoverflow.com/questions/12065151/many-to-many-relationship-in-grails

http://compiledammit.com/2012/08/20/grails-models-many-to-one-and-one-to-many-relationships/
http://stackoverflow.com/questions/7904472/groovy-grails-many-to-many-association-creating-2-join-tables
http://grails.github.io/grails-doc/latest/ref/Database%20Mapping/joinTable.html
http://stackoverflow.com/questions/18253705/grails-many-to-many-on-the-same-domain-class