55 lines
1017 B
Go
55 lines
1017 B
Go
package main
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import (
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"database/sql"
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"errors"
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_ "github.com/mattn/go-sqlite3"
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)
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func storageDB() (*DB, error) {
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return OpenSQLite3("storage.sqlite", `CREATE TABLE IF NOT EXISTS storage (
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key VARCHAR(512) PRIMARY KEY NOT NULL,
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value VARCHAR(512) NOT NULL
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);`)
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}
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// StorageKey returns an entry from the storage database
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func StorageKey(key string) (string, error) {
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db, err := storageDB()
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if err != nil {
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return "", err
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}
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defer db.Close()
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var r string
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err = db.QueryRow(`SELECT value FROM storage WHERE key = ?;`, key).Scan(&r)
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if err != nil && !errors.Is(err, sql.ErrNoRows) {
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return "", err
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}
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return r, nil
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}
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// SetStorageKey sets an entry in the storage database
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func SetStorageKey(key, value string) error {
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db, err := storageDB()
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if err != nil {
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return err
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}
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defer db.Close()
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if value == "" {
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_, err = db.Exec(`DELETE FROM storage WHERE key = ?;`)
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} else {
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_, err = db.Exec(`REPLACE INTO storage (
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key,
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value
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) VALUES (
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?,
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?
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);`, key, value)
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}
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return err
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}
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