Rails Query if Array contains other Array

Rails Query if Array contains other Array

References

Reference NO 1

http://stackoverflow.com/questions/15191110/rails-query-if-array-contains-other-array

Reference NO 2

http://stackoverflow.com/questions/10069993/rails-filtering-array-of-objects-by-attribute-value

Reference NO 3

http://guides.rubyonrails.org/v2.3.11/active_record_querying.html

Reference NO 4

http://guides.rubyonrails.org/active_support_core_extensions.html

Reference NO 5

http://blog.mitchcrowe.com/blog/2012/04/14/10-most-underused-activerecord-relation-methods

Reference NO 6

https://github.com/dockyard/postgres_ext/blob/master/docs/querying.md

Reference NO 7

http://monkeyandcrow.com/blog/tagging_with_active_record_and_postgres/

Reference NO 8

#EANF#