func getFields(typ reflect.Type) fields {
num := typ.NumField()
fs := newFields(num)
for i := 0; i < num; i++ {
f := typ.Field(i)
if f.Anonymous {
typ := f.Type
if typ.Kind() == reflect.Ptr {
typ = typ.Elem()
}
for _, ff := range getFields(typ).List {
ff.index = append(f.Index, ff.index...)
fs.Add(ff)
}
continue
}
if f.PkgPath != "" && !f.Anonymous {
continue
}
name, opts := parseTag(f.Tag.Get("pg"))
if name == "-" {
continue
}
if name == "" {
name = pgutil.Underscore(f.Name)
}
fieldType := indirectType(f.Type)
if fieldType.Kind() == reflect.Struct {
for _, ff := range getFields(fieldType).List {
ff.PGName = name + "." + ff.Name
ff.Name = name + "__" + ff.Name
ff.index = append(f.Index, ff.index...)
fs.Add(ff)
}
}
var flags int8
if opts.Contains("nullempty") {
flags |= nullEmpty
}
field := &field{
Name: name,
index: f.Index,
flags: flags,
appender: getAppender(fieldType),
decoder: getDecoder(fieldType),
}
fs.Add(field)
}
return fs
}
func fields(typ reflect.Type) map[string]*pgValue {
num := typ.NumField()
dst := make(map[string]*pgValue, num)
for i := 0; i < num; i++ {
f := typ.Field(i)
if f.Anonymous {
typ := f.Type
if typ.Kind() == reflect.Ptr {
typ = typ.Elem()
}
for name, ff := range fields(typ) {
dst[name] = newPGValue(ff.Source, append(f.Index, ff.Index...))
}
continue
}
if f.PkgPath != "" {
continue
}
name, opts := parseTag(f.Tag.Get("pg"))
if name == "-" {
continue
}
if name == "" {
name = pgutil.Underscore(f.Name)
}
tt := indirectType(f.Type)
if tt.Kind() == reflect.Struct {
for subname, ff := range fields(tt) {
dst[name+"__"+subname] = newPGValue(ff.Source, append(f.Index, ff.Index...))
}
}
val := newPGValue(f, f.Index)
if opts.Contains("nullempty") {
val.NullEmpty = true
}
dst[name] = val
}
return dst
}