func Backer(name string, db *mgo.Database) error {
User, err := models.FindUserByName(name, db)
if err != nil {
return err
}
for _, backed := range User.BackedProjects {
p, err := models.FindProjectById(backed.Project, db)
if err != nil {
return err
}
fmt.Printf("backed %s for %f \n", p.Name, backed.Amount)
}
return nil
}
func Back(givenName string, projectName string, card string, amount string, db *mgo.Database) error {
if !models.ValidateName(givenName) {
return errors.New("Given name should be no shorter than 4 chars and no longer than 20")
}
cardArr := models.ParseCard(card)
if !models.LuhnCheck(cardArr) {
return errors.New("Looks like this card is invalid")
}
backAmount, err := strconv.ParseFloat(amount, 64)
if backAmount < 0 {
return errors.New("you entered a negative amount!")
}
if err != nil {
return err
}
result, err := models.FindProjectByName(projectName, db)
if err != nil {
return err
}
if result.HasCard(cardArr) {
return errors.New("Looks like this card is already being used")
}
result.UpdateCard(cardArr, backAmount)
if err != nil {
return err
}
User, err := models.FindUserByName(givenName, db)
if err != nil {
return err
}
err = User.AddBacking(result.Id, backAmount)
if err != nil {
return err
}
err = User.Save(db)
if err != nil {
return err
}
err = result.Save(db)
if err != nil {
return err
}
return nil
}