72 lines
1.3 KiB
Go
72 lines
1.3 KiB
Go
package db
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import (
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"database/sql"
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"fmt"
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"io/ioutil"
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_ "github.com/lib/pq"
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)
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type DB struct {
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*sql.DB
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}
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var (
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schemaPath = "./db/schema.sql"
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)
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func New(dbUrl string) (*DB, error) {
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var (
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db_ *sql.DB
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db *DB
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err error
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)
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if db_, err = sql.Open("postgres", dbUrl); err != nil {
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return nil, err
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}
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// test connection
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if _, err = db_.Exec("SELECT 1"); err != nil {
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return nil, err
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}
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// TODO: run migrations
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db = &DB{DB: db_}
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return db, nil
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}
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func (db *DB) Reset(dbName string) error {
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var (
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f []byte
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err error
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)
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if err = db.Clear(dbName); err != nil {
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return err
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}
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if f, err = ioutil.ReadFile(schemaPath); err != nil {
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return err
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}
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if _, err = db.Exec(string(f)); err != nil {
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return err
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}
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return nil
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}
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func (db *DB) Clear(dbName string) error {
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var (
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tables = []string{"lnauth", "users", "sessions", "invoices", "markets", "shares", "invoices", "order_side", "orders", "withdrawals"}
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sql []string
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err error
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)
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for _, t := range tables {
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sql = append(sql, fmt.Sprintf("DROP TABLE IF EXISTS %s CASCADE", t))
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}
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sql = append(sql, "DROP EXTENSION IF EXISTS \"uuid-ossp\"")
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sql = append(sql, "DROP TYPE IF EXISTS order_side")
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for _, s := range sql {
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if _, err = db.Exec(s); err != nil {
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return err
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}
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}
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return nil
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}
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