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db.go
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db.go
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package db
import (
"database/sql"
"fmt"
"strconv"
log "github.com/sirupsen/logrus"
_ "github.com/mattn/go-sqlite3"
)
var db *sql.DB
// Connect starts the SQLite connection
func Connect(dbPath string) error {
var err error // This is to satisfy VSCode's highlighting
db, err = sql.Open("sqlite3", dbPath)
if err != nil {
log.Println("Failed to connect to the database! - ", err.Error())
return err
}
log.Println("Connected to DB")
return CreateTables()
}
func CreateTables() error {
statement, err := db.Prepare(createDeviceTableStatement)
if err != nil {
log.Println("SQLite error", err.Error())
return err
}
statement.Exec()
statement, err = db.Prepare(createChannelsTableStatement)
if err != nil {
log.Println("SQLite error", err.Error())
return err
}
statement.Exec()
return nil
}
func Close() {
db.Close()
}
func Test() {
statement, err := db.Prepare("CREATE TABLE IF NOT EXISTS people (id INTEGER PRIMARY KEY, firstname TEXT, lastname TEXT)")
if err != nil {
log.Println(err.Error())
}
statement.Exec()
statement, _ = db.Prepare("INSERT INTO people (firstname, lastname) VALUES (?, ?)")
statement.Exec("Nic", "Raboy")
rows, _ := db.Query("SELECT id, firstname, lastname FROM people")
var id int
var firstname string
var lastname string
for rows.Next() {
rows.Scan(&id, &firstname, &lastname)
fmt.Println(strconv.Itoa(id) + ": " + firstname + " " + lastname)
}
}