-- Migration: Ajout du champ observation à la table convention_commissions_physiques
-- Date: 2025-01-XX
-- Description: Ajoute le champ observation/notes à la table convention_commissions_physiques.

SET @dbname = DATABASE();
SET @tablename = 'convention_commissions_physiques';
SET @column = 'observation';

-- Vérifier et ajouter observation
SET @preparedStatement = (SELECT IF(
  (
    SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
    WHERE
      (TABLE_SCHEMA = @dbname)
      AND (TABLE_NAME = @tablename)
      AND (COLUMN_NAME = @column)
  ) > 0,
  'SELECT "La colonne observation existe déjà." AS message;',
  CONCAT('ALTER TABLE `', @tablename, '` ADD COLUMN `', @column, '` TEXT NULL DEFAULT NULL COMMENT "Observation/Notes de la commission" AFTER `taux_realisation_physique`;')
));
PREPARE alterIfNotExists FROM @preparedStatement;
EXECUTE alterIfNotExists;
DEALLOCATE PREPARE alterIfNotExists;

-- Message de confirmation
SELECT "Migration 015: Ajout du champ observation à la table convention_commissions_physiques terminée avec succès." AS message;