// SetColumnQualifiers sets column qualifiers of Mutation by Slice.
func SetColumnQualifiers(family string, t time.Time, m *bigtable.Mutation, slice interface{}) (err error) {
if family == "" {
err = fmt.Errorf("cloth: family should not be empty")
return
}
s := reflect.ValueOf(slice)
if s.Kind() != reflect.Slice {
err = fmt.Errorf("cloth: slice should be type slice")
return
}
if s.Len() == 0 {
err = fmt.Errorf("cloth: slice should not be empty")
return
}
for i := 0; i < s.Len(); i++ {
fs := structs.New(s.Index(i).Interface()).Fields()
if len(fs) == 0 {
err = fmt.Errorf("cloth: fields are not found, %v", i)
return
}
for _, f := range fs {
tg := f.Tag(BigtableTagName)
if tg == "" {
continue
}
ti := GetBigtableTagInfo(tg)
if ti.Qualifier && !f.IsZero() {
m.Set(family, fmt.Sprintf("%s", f.Value()), bigtable.Time(t), nil)
}
}
}
return
}
// SetColumns sets columns of Mutation by Struct.
func SetColumns(family string, t time.Time, m *bigtable.Mutation, i interface{}) (err error) {
if family == "" {
err = fmt.Errorf("cloth: family should not be empty")
return
}
if i == nil {
err = fmt.Errorf("cloth: struct should not be nil")
return
}
fs := structs.New(i).Fields()
if len(fs) == 0 {
err = fmt.Errorf("cloth: fields are not found, %v", i)
return
}
for _, f := range fs {
tg := f.Tag(BigtableTagName)
if tg == "" {
continue
}
ti := GetBigtableTagInfo(tg)
if ti.Ignore || ti.Column == "" || ti.Omitempty && f.IsZero() {
continue
}
var b []byte
b, err = getBytes(f)
if err != nil {
m = nil
break
}
m.Set(family, ti.Column, bigtable.Time(t), b)
}
return
}