/
database.go
84 lines (67 loc) · 1.64 KB
/
database.go
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// SPDX-FileCopyrightText: (c) 2018 Daniel Czerwonk
//
// SPDX-License-Identifier: MIT
package database
import (
"context"
"github.com/czerwonk/bioject/pkg/tracing"
"github.com/jinzhu/gorm"
)
type Database struct {
db *gorm.DB
}
// Connect connects to the database
func Connect(dialect string, args ...interface{}) (*Database, error) {
db, err := gorm.Open(dialect, args...)
if err != nil {
return nil, err
}
d := &Database{
db: db,
}
err = d.autoMigrate()
if err != nil {
db.Close()
return nil, err
}
return d, nil
}
func (d *Database) autoMigrate() error {
for _, t := range []interface{}{&Route{}, &Community{}, &LargeCommunity{}} {
d.db.AutoMigrate(t)
if d.db.Error != nil {
return d.db.Error
}
}
return nil
}
// Save saves a route to the database
func (d *Database) Save(ctx context.Context, route *Route) error {
_, span := tracing.Tracer().Start(ctx, "Database.Save")
defer span.End()
d.db.Save(route)
if d.db.Error != nil {
return d.db.Error
}
return nil
}
// Delete removes a route from the database
func (d *Database) Delete(ctx context.Context, route *Route) error {
_, span := tracing.Tracer().Start(ctx, "Database.Delete")
defer span.End()
d.db.Delete(Route{}, "prefix = ? AND next_hop = ?", route.Prefix, route.NextHop)
if d.db.Error != nil {
return d.db.Error
}
return nil
}
// Routes returns all routes stored in the database
func (d *Database) Routes() ([]*Route, error) {
var routes []*Route
d.db.Preload("Communities").Preload("LargeCommunities").Find(&routes)
return routes, d.db.Error
}
// Close closes the database connection
func (d *Database) Close() error {
return d.db.Close()
}