forked from heroiclabs/nakama
/
core_user.go
128 lines (108 loc) · 3.44 KB
/
core_user.go
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// Copyright 2017 The Nakama Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package server
import (
"database/sql"
"errors"
"strconv"
"strings"
"go.uber.org/zap"
)
func querySocialGraph(logger *zap.Logger, db *sql.DB, filterQuery string, params []interface{}) ([]*User, error) {
users := []*User{}
query := `
SELECT id, handle, fullname, avatar_url,
lang, location, timezone, metadata,
created_at, users.updated_at, last_online_at
FROM users ` + filterQuery
rows, err := db.Query(query, params...)
if err != nil {
logger.Error("Could not execute social graph query", zap.String("query", query), zap.Error(err))
return nil, err
}
defer rows.Close()
var id []byte
var handle sql.NullString
var fullname sql.NullString
var avatarURL sql.NullString
var lang sql.NullString
var location sql.NullString
var timezone sql.NullString
var metadata []byte
var createdAt sql.NullInt64
var updatedAt sql.NullInt64
var lastOnlineAt sql.NullInt64
for rows.Next() {
err = rows.Scan(&id, &handle, &fullname, &avatarURL, &lang, &location, &timezone, &metadata, &createdAt, &updatedAt, &lastOnlineAt)
if err != nil {
logger.Error("Could not execute social graph query", zap.Error(err))
return nil, err
}
users = append(users, &User{
Id: id,
Handle: handle.String,
Fullname: fullname.String,
AvatarUrl: avatarURL.String,
Lang: lang.String,
Location: location.String,
Timezone: timezone.String,
Metadata: metadata,
CreatedAt: createdAt.Int64,
UpdatedAt: updatedAt.Int64,
LastOnlineAt: lastOnlineAt.Int64,
})
}
if err = rows.Err(); err != nil {
logger.Error("Could not execute social graph query", zap.Error(err))
return nil, err
}
return users, nil
}
func UsersFetchIds(logger *zap.Logger, db *sql.DB, userIds [][]byte) ([]*User, error) {
statements := make([]string, 0)
params := make([]interface{}, 0)
counter := 1
for _, userID := range userIds {
statement := "$" + strconv.Itoa(counter)
counter += 1
statements = append(statements, statement)
params = append(params, userID)
}
if len(statements) == 0 {
return nil, errors.New("No valid user IDs received")
}
query := "WHERE users.id IN (" + strings.Join(statements, ", ") + ")"
users, err := querySocialGraph(logger, db, query, params)
if err != nil {
return nil, errors.New("Could not retrieve users")
}
return users, nil
}
func UsersFetchHandle(logger *zap.Logger, db *sql.DB, handles []string) ([]*User, error) {
statements := make([]string, 0)
params := make([]interface{}, 0)
counter := 1
for _, handle := range handles {
statement := "$" + strconv.Itoa(counter)
counter += 1
statements = append(statements, statement)
params = append(params, handle)
}
query := "WHERE users.handle IN (" + strings.Join(statements, ", ") + ")"
users, err := querySocialGraph(logger, db, query, params)
if err != nil {
return nil, errors.New("Could not retrieve users")
}
return users, nil
}