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urtrator/database/database_object.go

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// URTrator - Urban Terror server browser and game launcher, written in
// Go.
//
// Copyright (c) 2016-2018, Stanslav N. a.k.a pztrn (or p0z1tr0n) and
// URTrator contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject
// to the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
// OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
package database
import (
// stdlib
//"database/sql"
"fmt"
"path"
"runtime"
"strconv"
// local
"gitlab.com/pztrn/urtrator/configuration"
"gitlab.com/pztrn/urtrator/datamodels"
// Other
"github.com/jmoiron/sqlx"
_ "github.com/mattn/go-sqlite3"
)
type Database struct {
// Configuration.
cfg *configuration.Config
// Pointer to initialized database connection.
Db *sqlx.DB
}
func (d *Database) Close() {
fmt.Println("Closing database...")
// Save configuration.
// Delete previous configuration.
d.Db.MustExec("DELETE FROM configuration")
tx := d.Db.MustBegin()
for k, v := range cfg.Cfg {
cfg_item := datamodels.Configuration{}
cfg_item.Key = k
cfg_item.Value = v
tx.NamedExec("INSERT INTO configuration (key, value) VALUES (:key, :value)", &cfg_item)
}
tx.Commit()
d.Db.Close()
runtime.UnlockOSThread()
}
func (d *Database) Initialize(cfg *configuration.Config) {
fmt.Println("Initializing database...")
runtime.LockOSThread()
// Connect to database.
db_path := path.Join(cfg.TEMP["DATA"], "database.sqlite3")
fmt.Println("Database path: " + db_path)
db, err := sqlx.Connect("sqlite3", db_path)
if err != nil {
fmt.Println(err.Error())
}
d.Db = db
// Load configuration.
cfgs := []datamodels.Configuration{}
d.Db.Select(&cfgs, "SELECT * FROM configuration")
if len(cfgs) > 0 {
for i := range cfgs {
cfg.Cfg[cfgs[i].Key] = cfgs[i].Value
}
}
}
func (d *Database) Migrate() {
// Getting current database version.
dbver := 0
database := []datamodels.Database{}
d.Db.Select(&database, "SELECT * FROM database")
if len(database) > 0 {
fmt.Println("Current database version: " + database[0].Version)
dbver, _ = strconv.Atoi(database[0].Version)
} else {
fmt.Println("No database found, will create new one")
}
migrate_full(d, dbver)
}