// SaveCard saves a card to the database and sets its id
func SaveCard(card Card, creator int) Card {
sql := "insert into %s (cardbody, cardtype, cardblanks, createdby) VALUES ($1, $2, $3, $4) returning id, createdon"
var id int64
err := database.QueryRow(sql, card.CardBody, card.CardType, card.CardBlanks, creator).Scan(&id, &card.CreatedOn)
if err != nil {
log.Fatal(err)
return card
}
card.ID = id
card.CreatedBy = int64(creator)
return card
}
// RateCard changes the card's rating and returns the new rating.
// The modifiedon timestamo and the modifiedby field will be updated appropriately.
// TODO: once a user system is in place, add this rating to the user's list of rated cards.
func RateCard(newRating, ID, raterID int) float32 {
sql := `update %s set
rating = ((rating * raters + $1) / (raters + 1)),
raters = raters + 1,
modifiedon = current_timestamp,
modifiedby = $2
where
id = $3
returning rating`
var cardRating float32
if err := database.QueryRow(sql, newRating, raterID, ID).Scan(&cardRating); err != nil {
log.Fatal(err)
return -1
}
return cardRating
}
