Cancancan gem defining ability

Question

I am trying to define an ability where a logged in participant can manage projects based on the invites.

Code below yields an error when I access a project undefined method project' for #<Project:0x007f2c998410>

can :manage, Project, :project=>{:invite=>{:participant=>{:user => {:id => user.id}}}}

TL;DR

The table relationships are below.

projects --> invites <-- participants <--users

Answer 1

我认为您在供应商模型中缺少has_manny :invites关系

Answer 2

The hash format was incorrect. This works:

can :manage, Project, invites: {participant: {:user_id => user.id}}