fixing sql error unique on a column
fixing sql error unique on a column

OPEN-ENT-NG/vie-scolaire,OPEN-ENT-NG/vie-scolaire,OPEN-ENT-NG/vie-scolaire,OPEN-ENT-NG/vie-scolaire,OPEN-ENT-NG/vie-scolaire,OPEN-ENT-NG/vie-scolaire