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record.go
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record.go
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package cdb
import (
"encoding/json"
)
type Records struct {
rows []any
}
func (r Records) Books() ([]Book, error) {
books := make([]Book, len(r.rows))
for i, r := range r.rawMsg() {
err := json.Unmarshal(r, &books[i])
if err != nil {
return books, err
}
}
return books, nil
}
func (r Records) StringMap() ([]map[string]any, error) {
books := make([]map[string]any, len(r.rows))
for i, r := range r.rawMsg() {
err := json.Unmarshal(r, &books[i])
if err != nil {
return books, err
}
}
return books, nil
}
func (r Records) StringMapString() ([]map[string]string, error) {
books := make([]map[string]string, len(r.rows))
anyB, err := r.Books()
if err != nil {
return books, err
}
for i, b := range anyB {
books[i] = b.StringMapString()
}
return books, nil
}
func (r Records) rawMsg() []json.RawMessage {
var raw []json.RawMessage
for _, b := range r.rows {
for _, v := range b.(map[string]any) {
raw = append(raw, json.RawMessage(v.(string)))
}
}
return raw
}
func (r Records) MarshalJSON() ([]byte, error) {
d, err := json.Marshal(r.rawMsg())
if err != nil {
return []byte{}, err
}
return d, nil
}
func (r Records) UnmarshalJSON(d []byte) error {
var raw []json.RawMessage
err := json.Unmarshal(d, &raw)
if err != nil {
return err
}
for _, rm := range raw {
r.rows = append(r.rows, any(rm))
}
return nil
}