129 lines
2.5 KiB
Go
129 lines
2.5 KiB
Go
package main
|
|
|
|
import (
|
|
"database/sql"
|
|
"fmt"
|
|
"log"
|
|
"net/url"
|
|
"strings"
|
|
)
|
|
|
|
type Member struct {
|
|
name string
|
|
dietaryPreferences string
|
|
child bool
|
|
}
|
|
|
|
func (m *Member) serialize() string {
|
|
builder := new(strings.Builder)
|
|
fmt.Fprintf(builder, "%s,%s,%t,", url.QueryEscape(m.name), url.QueryEscape(m.dietaryPreferences), m.child)
|
|
return builder.String()
|
|
}
|
|
|
|
func deserializeMembers(serializedData string) ([]Member, error) {
|
|
members := make([]Member, 0)
|
|
keyVals := strings.Split(serializedData, ",")
|
|
for i := 0; i < len(keyVals)-1; i += 3 {
|
|
name, err := url.QueryUnescape(keyVals[i])
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
dietaryPreferences, err := url.QueryUnescape(keyVals[i+1])
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
child := keyVals[i+2] == "true"
|
|
|
|
members = append(members, Member{
|
|
name: name,
|
|
dietaryPreferences: dietaryPreferences,
|
|
child: child,
|
|
})
|
|
}
|
|
return members, nil
|
|
}
|
|
|
|
type Rsvp struct {
|
|
id int64
|
|
attending bool
|
|
partySize int64
|
|
partyMembers []Member
|
|
}
|
|
|
|
func SetupRsvpsTable(db *sql.DB) {
|
|
_, err := db.Exec(`CREATE TABLE IF NOT EXISTS rsvps (
|
|
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
|
attending BOOLEAN NOT NULL,
|
|
partySize INTEGER NOT NULL,
|
|
partyMembers BLOB NOT NULL
|
|
);`)
|
|
|
|
if err != nil {
|
|
log.Fatalf("failed to create rsvp table: %s", err.Error())
|
|
}
|
|
}
|
|
|
|
func GetRsvps(db *sql.DB) ([]Rsvp, error) {
|
|
rows, err := db.Query("SELECT * FROM rsvps ORDER BY id desc")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
defer rows.Close()
|
|
|
|
rsvps := make([]Rsvp, 0)
|
|
|
|
for rows.Next() {
|
|
var id int64
|
|
var attending bool
|
|
var partySize int64
|
|
var rawPartyMembers string
|
|
|
|
err = rows.Scan(&id, &attending, &partySize, &rawPartyMembers)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
members, err := deserializeMembers(rawPartyMembers)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
rsvps = append(rsvps, Rsvp{
|
|
id: id,
|
|
attending: attending,
|
|
partySize: partySize,
|
|
partyMembers: members,
|
|
})
|
|
}
|
|
|
|
return rsvps, nil
|
|
}
|
|
|
|
func (rsvp *Rsvp) CreateRsvp(db *sql.DB) (int64, error) {
|
|
partyMembersBuilder := new(strings.Builder)
|
|
for _, m := range rsvp.partyMembers {
|
|
partyMembersBuilder.WriteString(m.serialize())
|
|
}
|
|
fmt.Printf("%s\n", partyMembersBuilder.String())
|
|
result, err := db.Exec(
|
|
"INSERT INTO rsvps (attending, partySize, partyMembers) VALUES (?, ?, ?);",
|
|
rsvp.attending,
|
|
rsvp.partySize,
|
|
partyMembersBuilder.String(),
|
|
)
|
|
|
|
if err != nil {
|
|
return -1, err
|
|
}
|
|
|
|
id, err := result.LastInsertId()
|
|
|
|
if err != nil {
|
|
return -1, err
|
|
}
|
|
|
|
return id, nil
|
|
}
|