Question

UPDATE 2:

This looks much better:

Comp.includes(:members).where('members.member_email = ? OR comps.user_id = ?', current_user.email,current_user.id)

UPDATE:

This seems to work but is there a more elegant way to do this in Rails? I feel like there must be.

@my_comps = Comp.joins('LEFT OUTER JOIN teams ON teams.comp_id = comps.id LEFT OUTER JOIN members ON members.team_id = teams.id').where('members.member_email = ? OR comps.user_id = ?', current_user.email,current_user.id).group('comps.id')

ORIGINAL:

My model associations are:

Comp.rb
    has_many :teams
    has_many :members, :through => :teams

Team.rb
    belongs_to :comp
    has_many :members

Member.rb
    belongs_to :team

I want to write a query that finds all of the Comps where comps.user_id equals a particular value OR members.member_email equals a particular value for any of the members of that Comp.

I unsuccessfully tried this:

@my_comps = Comp.joins(:members).where('members.member_email = ? OR comps.user_id = ?', email, id)  

There are 2 issues with the results returned: 1) it returns duplicate Comps where member_email is equal to the condition and 2) it does NOT return the Comps where the user_id is equal to the condition. I solved problem 1 by adding .group(‘id’) to the end of this code but I feel like there is likely a better way to do it, and more importantly it doesn’t solve problem 2.

Any advice on how to approach this differently? Thanks so much.

Answer 1

changed the suggestion, didn’t know that .join only uses “INNER JOIN” in newer Rails (having an old version).
The final suggestions was: use .include instead of .join