update or delete on table 22model 22 violates foreign key constraint

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showing results for - "update or delete on table 22model 22 violates foreign key constraint"
Maxwell
24 Oct 2019
1ERROR: update or delete on table "attachment" violates foreign key constraint
Amelie
14 Sep 2019
1has_many :comments, dependent: :delete_all - just automatically delete them when the user is deleted
2
3has_many :comments, dependent: :destroy - like above, but call #destroy on each comment instead of just deleting directly in the db
4
5has_many :comments, dependent: :nullify - don't delete comments when the user is deleted, just null out their user_id column
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