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database.go
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database.go
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package database
import (
"errors"
"github.com/crockeo/personalwebsite/config"
"github.com/jmoiron/sqlx"
_ "github.com/lib/pq"
_ "github.com/mattn/go-sqlite3"
"os"
)
type initFn func(db *sqlx.DB) error
var (
// An error to desginate that a row doesn't exist
RowDoesNotExistError error = errors.New("Row does not exist.")
// The functions to initialize the database schema
initFns []initFn = []initFn{
makeAuthTable,
makePostTable,
makeCourseTable,
makeProjectTable,
}
)
// Opening a database connection
func OpenDB() (*sqlx.DB, error) {
url := os.Getenv("DATABASE_URL")
if url == "" {
return sqlx.Open("sqlite3", config.DbLoc)
} else {
return sqlx.Open("postgres", url)
}
}
// Quickly opening a database connection
func QuickOpenDB() *sqlx.DB {
db, err := OpenDB()
if err != nil {
panic(err)
}
return db
}
// Creating the database schema
func CreateDatabaseSchema(db *sqlx.DB) error {
var err error
for i := 0; i < len(initFns); i++ {
err = initFns[i](db)
if err != nil {
return err
}
}
return nil
}