/
user.go
182 lines (160 loc) · 4.12 KB
/
user.go
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package main
import (
"log"
"time"
"github.com/dgrijalva/jwt-go"
"github.com/jmoiron/sqlx"
)
const (
QNewUser string = "INSERT INTO users (email, username, password, created_at, updated_at) VALUES (:email, :username, :password, :created_at, :updated_at) RETURNING id"
QNewList string = "INSERT INTO lists (title, user_id, created_at, updated_at) VALUES (:title, :user_id, :created_at, :updated_at)"
QNewMovie string = "INSERT INTO movies (imdb_id, user_rating, list_id) VALUES (:IMDB, :UserRating, :ID)"
)
type Timestamps struct {
Created_At time.Time `json:"created_at"`
Updated_At time.Time `json:"updated_at"`
}
type User struct {
ID int64 `json:"-"`
Username string
Password string `json:"-"`
Email string
Lists []*List
Timestamps
}
type List struct {
ID int64 `json:"id"`
Title string `json:"title"`
Movies []*Movie `json:"movies"`
User_ID int64 `json:"-"`
Timestamps
}
type Movie struct {
ID int64 `json:"id"`
IMDB string
UserRating float32
List_ID int64 `json:"-"`
Watched bool
Timestamps
}
func (u *User) DeleteList(db *sqlx.DB, id int64) error {
stmt := "DELETE FROM lists WHERE id=$1 AND user_id=$2"
_, err := db.Exec(stmt, id, u.ID)
return err
}
func (u *User) GenSignedString(key []byte) string {
token := jwt.New(jwt.SigningMethodHS256)
duration := time.Now().Add(time.Hour * 96).Unix()
// Set a header and a claim
token.Header["typ"] = "JWT"
token.Claims["exp"] = duration
token.Claims["auth"] = true
token.Claims["uid"] = u.ID
token.Claims["username"] = u.Username
// Generate encoded token
t, err := token.SignedString(key)
if err != nil {
log.Printf("Error generating signed string out of token: %s", err)
// return invalid token [temporarily]
return ""
}
return t
}
func (u *User) ListsAll() []*List {
return u.Lists
}
func (u *User) NewList(db *sqlx.DB, l List) error {
l.User_ID = u.ID
l.Created_At = time.Now()
l.Updated_At = time.Now()
_, err := db.NamedExec(QNewList, l)
// query, args, err := ParseQueryStruct(QNewList, l, db)
if err != nil {
return err
}
return nil
}
func (l *List) MoviesAll() []*Movie {
return l.Movies
}
func (l *List) AddMovie(db *sqlx.DB, m Movie) error {
m.List_ID = l.ID
_, err := db.NamedExec(QNewMovie, m)
if err != nil {
return err
}
return nil
}
func NewUser(db *sqlx.DB, u User) (int64, error) {
u.Created_At = time.Now()
u.Updated_At = time.Now()
query, args, err := ParseQueryStruct(QNewUser, u, db)
if err != nil {
return 0, err
}
// Postgres does not return last inserted row id in sql.Result
// so we have to do this
var id int64
row := db.QueryRowx(query, args...)
row.Scan(&id)
if row.Err() != nil {
return 0, row.Err()
}
return id, nil
}
// func NewMovie (db *sqlx.DB, m
func FindUserByUsername(db *sqlx.DB, u string) (*User, error) {
user := User{}
// query := "SELECT * FROM users WHERE username=$1"
err := db.Get(&user, "SELECT * FROM users WHERE username=$1", u)
err = user.QueryResources(db)
if err != nil {
log.Println(err)
}
return &user, err
}
func FindUserByID(db *sqlx.DB, uid int64) (*User, error) {
user := User{}
// query := "SELECT * FROM users WHERE username=$1"
err := db.Get(&user, "SELECT * FROM users WHERE id=$1", uid)
err = user.QueryResources(db)
if err != nil {
log.Println(err)
}
return &user, err
}
func (u *User) QueryResources(db *sqlx.DB) error {
lists := []*List{}
err := db.Select(&lists, "SELECT * FROM lists WHERE user_id=$1", u.ID)
if err != nil {
return err
}
for _, l := range lists {
l.QueryResources(db)
}
u.Lists = lists
return nil
}
func (l *List) QueryResources(db *sqlx.DB) error {
var movies []*Movie
err := db.Select(&movies, "SELECT * FROM lists WHERE list_id=$1", l.ID)
if err != nil {
return err
}
l.Movies = movies
return nil
}
func ParseQueryStruct(q string, d interface{}, db *sqlx.DB) (string, []interface{}, error) {
errors := make([]error, 2)
query, args, err := sqlx.Named(q, d)
errors = append(errors, err)
query, args, err = sqlx.In(query, args...)
errors = append(errors, err)
query = db.Rebind(query)
for _, e := range errors {
if e != nil {
return "", nil, e
}
}
return query, args, nil
}