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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3aforeignkeyviolation 3a error 3a update or delete on table 22employees 22 violates foreign key constraint 22fk rails b3dbc1fb3e 22 on table 22reviews 22 detail 3a key 28id 29 3d 288 29 is still referenced from table 22reviews 22violates foreign key constraint update or delete on tableupdate or delete on table 22 22 violates foreign key constraint on table 22 22 detail 3a key 28id 29 3dis still referenced from tablepg 3a 3aforeignkeyviolation 3a error 3a update or delete on table 22customers 22 violates foreign key constraint 22fk rails 0d349e632f 22 on table 22invoices 22update or delete on table 22product 22 violates foreign key constraintpg 3a 3aforeignkeyviolation 3a error 3a update or delete on table 22users 22 violates foreign key update or delete on table 22categories 22 violates foreign key constraint 22fk rails 1e86d9c4ec 22 on table 22books 22update or delete on table 26quot 3bvods 26quot 3b violates foreign key constraintupdate or delete on table categories violates foreign 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