WASAPhoto/service/database/db-profile.go

121 lines
3.2 KiB
Go

package database
import (
"github.com/notherealmarco/WASAPhoto/service/database/db_errors"
"github.com/notherealmarco/WASAPhoto/service/structures"
)
// Get user profile, including username, followers, following, and photos
func (db *appdbimpl) GetUserProfile(uid string, requesting_uid string) (QueryResult, *structures.UserProfile, error) {
// Get user info
var name string
err := db.c.QueryRow(`SELECT "name" FROM "users" WHERE "uid" = ?`, uid).Scan(&name)
if db_errors.EmptySet(err) {
// Query returned no rows, the user does not exist
return ERR_NOT_FOUND, nil, nil
} else if err != nil {
return ERR_INTERNAL, nil, err
}
// Get followers
var followers int64
err = db.c.QueryRow(`SELECT COUNT(*) FROM "follows" WHERE "followed" = ?`, uid).Scan(&followers)
if err != nil {
// Return the error
return ERR_INTERNAL, nil, err
}
// Get following users
var following int64
err = db.c.QueryRow(`SELECT COUNT(*) FROM "follows" WHERE "follower" = ?`, uid).Scan(&following)
if err != nil {
// Return the error
return ERR_INTERNAL, nil, err
}
var photos int64
err = db.c.QueryRow(`SELECT COUNT(*) FROM "photos" WHERE "photos"."user" = ?`, uid).Scan(&photos)
if err != nil {
return ERR_INTERNAL, nil, err
}
// Get follow status
var follow_status bool
err = db.c.QueryRow(`SELECT EXISTS (SELECT * FROM "follows" WHERE "follower" = ? AND "followed" = ?)`, requesting_uid, uid).Scan(&follow_status)
if err != nil {
return ERR_INTERNAL, nil, err
}
// Get ban status
var ban_status bool
err = db.c.QueryRow(`SELECT EXISTS (SELECT * FROM "bans" WHERE "user" = ? AND "ban" = ?)`, requesting_uid, uid).Scan(&ban_status)
if err != nil {
return ERR_INTERNAL, nil, err
}
return SUCCESS, &structures.UserProfile{
UID: uid,
Name: name,
Following: following,
Followers: followers,
Followed: follow_status,
Banned: ban_status,
Photos: photos,
}, nil
}
func (db *appdbimpl) GetUserPhotos(uid string, requesting_uid string, start_index int, limit int) (*[]structures.UserPhoto, error) {
// Get photos
rows, err := db.c.Query(`SELECT "p"."id", "p"."date",
(
SELECT COUNT(*) AS "likes" FROM "likes" AS "l"
WHERE "l"."photo_id" = "p"."id"
),
(
SELECT COUNT(*) AS "comments" FROM "comments" AS "c"
WHERE "c"."photo" = "p"."id"
),
EXISTS (
SELECT * FROM "likes" AS "l"
WHERE "l"."photo_id" = "p"."id"
AND "l"."user" = ?
)
FROM "photos" AS "p"
WHERE "p"."user" = ?
ORDER BY "p"."date" DESC
LIMIT ?
OFFSET ?`, requesting_uid, uid, limit, start_index)
if err != nil {
// Return the error
return nil, err
}
photos := make([]structures.UserPhoto, 0)
defer rows.Close()
for rows.Next() {
// If there is a next row, we create an instance of Photo and add it to the slice
var photo structures.UserPhoto
err = rows.Scan(&photo.ID, &photo.Date, &photo.Likes, &photo.Comments, &photo.Liked)
if err != nil {
// Return the error
return nil, err
}
photos = append(photos, photo)
}
// We check if the iteration ended prematurely
if err = rows.Err(); err != nil {
return nil, err
}
return &photos, nil
}