func String(m map[string]interface{}, key string) (string, bool) {
v, ok := m[key]
if !ok {
return "", false
}
return vu.String(v)
}
// String returns the string value for the column in the row.
// It returns empty string if not found or it is not string.
func (m Row) String(column string, args ...interface{}) string {
if v, ok := m[column]; ok {
if ns, ok := v.(NullString); ok && ns.Valid {
return ns.String
} else if ns, ok := v.(*NullString); ok && ns.Valid {
return ns.String
} else if s, ok := varutil.String(v); ok {
return s
}
}
if len(args) > 0 {
return varutil.AsString(args[0])
}
return ""
}