gis Database

Parameters

Name	Type	Mode

Definition

DECLARE
    organisme text;
    table_canalisation text;
BEGIN

-- Calcul de l'identifiant si besoin
    IF NEW.idouvrage IS NULL OR trim(NEW.idouvrage) = '' OR trim(NEW.idouvrage) = 'INCONNU' THEN
        NEW.idouvrage := raepa.generate_oid(TG_TABLE_NAME::text)::character varying;
    END IF;

-- Calcul de la géométrie à partir de X et Y
    IF ( TG_OP = 'UPDATE' AND NEW.x IS NOT NULL AND NEW.y IS NOT NULL AND ( NEW.x != OLD.x OR NEW.y != OLD.y ) )
    OR ( TG_OP = 'INSERT' AND NEW.x IS NOT NULL AND NEW.y IS NOT NULL ) THEN
        NEW.geom := ST_SetSRID(ST_Makepoint(NEW.x, NEW.y), 2154);
        RAISE NOTICE 'ouvrage % - X ou Y changé -> changement geom vers POINT(% %)', NEW.idouvrage, NEW.x, NEW.y;
    END IF;

IF ( TG_OP = 'UPDATE' AND NOT ST_Equals(NEW.geom, OLD.geom) ) OR TG_OP = 'INSERT' THEN

-- Calcul des X et Y si besoin
        NEW.x := ST_X(NEW.geom)::numeric(10,3);
        NEW.y := ST_Y(NEW.geom)::numeric(10,3);

-- Calcul des canalisation amont et aval
        table_canalisation = 'raepa.raepa_canalass_l';
        IF TG_TABLE_NAME = 'raepa_ouvraep_p' THEN
            table_canalisation = 'raepa.raepa_canalaep_l';
        END IF;

-- idcanamont
        EXECUTE format(
            '
            SELECT COALESCE(string_agg(c.idcana, '','' ORDER BY idcana), ''INCONNU'')
            FROM %s AS c
            WHERE ST_DWithin(ST_EndPoint(c.geom), ''%s''::geometry, 0.05)
            ',
            table_canalisation,
            NEW.geom
        )
        INTO NEW.idcanamont;

-- idcanaval
        EXECUTE format(
            '
            SELECT COALESCE(string_agg(c.idcana, '','' ORDER BY idcana), ''INCONNU'')
            FROM %s AS c
            WHERE ST_DWithin(ST_StartPoint(c.geom), ''%s''::geometry, 0.05)

',
            table_canalisation,
            NEW.geom
        )
        INTO NEW.idcanaval;
        RAISE NOTICE 'ouvrage % - idcanamont changé à %', NEW.idouvrage, NEW.idcanamont;
        RAISE NOTICE 'ouvrage % - idcanaval changé à %', NEW.idouvrage, NEW.idcanaval;

END IF;

-- Métadonnées
    IF (NEW.mouvrage IS NULL) OR (NEW.gexploit IS NULL) OR (NEW.sourmaj IS NULL) THEN
        -- Récupération du gestionnaire
        SELECT INTO organisme
        s.nom
        FROM raepa.sys_organisme_gestionnaire s
        WHERE actif IS TRUE
        ORDER BY id DESC
        LIMIT 1;
    END IF;

IF NEW.mouvrage IS NULL THEN
        NEW.mouvrage := organisme;
    END IF;
    IF NEW.gexploit IS NULL THEN
        NEW.gexploit := organisme;
    END IF;

NEW.datemaj := now();
    IF NEW.sourmaj IS NULL THEN
        NEW.sourmaj := organisme;
    END IF;

RETURN NEW;

END;

trg_avant_modification_ouvrage

Parameters

Definition