ruby on rails - How to query across three models -

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i have workspace, project, user, , membership models. user has many memberships, , many projects through memberships. project belongs work space.

getting users projects pretty easy:

user.projects

but reaching across work spaces tricky. raises error of undefined method spaces collection proxy.

user.projects.work_spaces.unique

how can unique set of work spaces user involved in? (work spaces projects user belongs through memberships).

if using activerecord, suggest leveraging association methods in order avoid verbose code , poorer performance of .collect(&:work_spaces).flatten.uniq. 

class user < activerecord::base   has_many :memberships   has_many :projects, through: :memberships   has_many :work_spaces, through: :projects end

you able ask user.work_spaces.


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