example how get new trigger data about plgo HOT 1 CLOSED

Set just sets the column value in the row. You must then return the modified row.

If you want to change a value in the NewRow, eg. the table is:

CREATE TABLE example
(
    id serial primary key,
    value text
)

and you make a trigger that eg concatenates the value:

func DoubleValueTrigger(td *plgo.TriggerData) *plgo.TriggerRow {
	var id int
	var value string
	td.NewRow.Scan(&id, &value) //get values of the new row being inserted	
        td.NewRow.Set(1, value+value) //set the column 1 (not using a pointer, just the value)
	return td.NewRow
}

Set the trigger to run on insert:

CREATE TRIGGER double_trigger
    BEFORE INSERT
    ON public.example
    FOR EACH ROW
    EXECUTE PROCEDURE public.doublevaluetrigger();

And insert some value insert into example (value) values ('foo')

Then in the new row you will have values: [1, 'foofoo']

Maybe I must do a better documentation around these use-cases.

from plgo.