BDD - Pas de ON DELETE, ni ON UPDATE sur les tables

[makinabot]

DELETE

• Delete e_t_evenement + e_r_evenement for delete on all "inherited" models
• Set value = Null for delete on all bibs FK
• Delete cascade for delete on all bibs N-N

UPDATE

• l_t_troncon (supprime) -> e_r_evenement + e_t_evenement (une fois #752 implémenté)
• o_b_difficulte (id) -> o_t_itineraire (difficulte)

CONSTRAINT difficulte_refs_id FOREIGN KEY (difficulte) REFERENCES o_b_difficulte (id) MATCH SIMPLE
      ON UPDATE CASCADE ON DELETE NO ACTION DEFERRABLE INITIALLY DEFERRED,

Questions

• Set project = null on intervention for delete project ?

[submarcos]

Managed by django, but django don't add constraints in database directly.