WIP: Since ID, works
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@@ -15,7 +15,8 @@ const (
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createMessagesTableQuery = `
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BEGIN;
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CREATE TABLE IF NOT EXISTS messages (
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id TEXT PRIMARY KEY,
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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mid TEXT NOT NULL,
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time INT NOT NULL,
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topic TEXT NOT NULL,
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message TEXT NOT NULL,
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@@ -32,42 +33,59 @@ const (
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encoding TEXT NOT NULL,
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published INT NOT NULL
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);
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CREATE INDEX IF NOT EXISTS idx_mid ON messages (mid);
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CREATE INDEX IF NOT EXISTS idx_topic ON messages (topic);
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COMMIT;
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`
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insertMessageQuery = `
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INSERT INTO messages (id, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published)
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INSERT INTO messages (mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
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`
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pruneMessagesQuery = `DELETE FROM messages WHERE time < ? AND published = 1`
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selectMessagesSinceTimeQuery = `
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SELECT id, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
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SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
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FROM messages
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WHERE topic = ? AND time >= ? AND published = 1
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ORDER BY time ASC
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ORDER BY time, id
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`
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selectMessagesSinceTimeIncludeScheduledQuery = `
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SELECT id, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
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SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
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FROM messages
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WHERE topic = ? AND time >= ?
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ORDER BY time ASC
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ORDER BY time, id
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`
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selectMessagesSinceIDQuery = `
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SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
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FROM messages
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WHERE topic = ?
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AND published = 1
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AND id > (SELECT IFNULL(id,0) FROM messages WHERE mid = ?)
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ORDER BY time, id
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`
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selectMessagesSinceIDIncludeScheduledQuery = `
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SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
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FROM messages
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WHERE topic = ?
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AND id > (SELECT IFNULL(id,0) FROM messages WHERE mid = ?)
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ORDER BY time, id
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`
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selectMessagesDueQuery = `
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SELECT id, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
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SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
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FROM messages
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WHERE time <= ? AND published = 0
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ORDER BY time, id
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`
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updateMessagePublishedQuery = `UPDATE messages SET published = 1 WHERE id = ?`
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updateMessagePublishedQuery = `UPDATE messages SET published = 1 WHERE mid = ?`
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selectMessagesCountQuery = `SELECT COUNT(*) FROM messages`
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selectMessageCountForTopicQuery = `SELECT COUNT(*) FROM messages WHERE topic = ?`
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selectTopicsQuery = `SELECT topic FROM messages GROUP BY topic`
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selectAttachmentsSizeQuery = `SELECT IFNULL(SUM(attachment_size), 0) FROM messages WHERE attachment_owner = ? AND attachment_expires >= ?`
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selectAttachmentsExpiredQuery = `SELECT id FROM messages WHERE attachment_expires > 0 AND attachment_expires < ?`
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selectAttachmentsExpiredQuery = `SELECT mid FROM messages WHERE attachment_expires > 0 AND attachment_expires < ?`
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)
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// Schema management queries
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const (
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currentSchemaVersion = 4
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currentSchemaVersion = 5
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createSchemaVersionTableQuery = `
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CREATE TABLE IF NOT EXISTS schemaVersion (
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id INT PRIMARY KEY,
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@@ -108,6 +126,43 @@ const (
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migrate3To4AlterMessagesTableQuery = `
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ALTER TABLE messages ADD COLUMN encoding TEXT NOT NULL DEFAULT('');
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`
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// 4 -> 5
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migrate4To5AlterMessagesTableQuery = `
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BEGIN;
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CREATE TABLE IF NOT EXISTS messages_new (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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mid TEXT NOT NULL,
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time INT NOT NULL,
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topic TEXT NOT NULL,
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message TEXT NOT NULL,
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title TEXT NOT NULL,
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priority INT NOT NULL,
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tags TEXT NOT NULL,
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click TEXT NOT NULL,
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attachment_name TEXT NOT NULL,
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attachment_type TEXT NOT NULL,
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attachment_size INT NOT NULL,
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attachment_expires INT NOT NULL,
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attachment_url TEXT NOT NULL,
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attachment_owner TEXT NOT NULL,
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encoding TEXT NOT NULL,
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published INT NOT NULL
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);
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CREATE INDEX IF NOT EXISTS idx_mid ON messages_new (mid);
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CREATE INDEX IF NOT EXISTS idx_topic ON messages_new (topic);
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INSERT
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INTO messages_new (
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mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type,
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attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published)
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SELECT
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id, time, topic, message, title, priority, tags, click, attachment_name, attachment_type,
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attachment_size, attachment_expires, attachment_url, attachment_owner, encoding, published
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FROM messages;
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DROP TABLE messages;
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ALTER TABLE messages_new RENAME TO messages;
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COMMIT;
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`
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)
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type sqliteCache struct {
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@@ -167,16 +222,24 @@ func (c *sqliteCache) AddMessage(m *message) error {
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return err
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}
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func (c *sqliteCache) Messages(topic string, since sinceTime, scheduled bool) ([]*message, error) {
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func (c *sqliteCache) Messages(topic string, since sinceMarker, scheduled bool) ([]*message, error) {
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if since.IsNone() {
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return make([]*message, 0), nil
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}
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var rows *sql.Rows
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var err error
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if scheduled {
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rows, err = c.db.Query(selectMessagesSinceTimeIncludeScheduledQuery, topic, since.Time().Unix())
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if since.IsID() {
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if scheduled {
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rows, err = c.db.Query(selectMessagesSinceIDIncludeScheduledQuery, topic, since.ID())
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} else {
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rows, err = c.db.Query(selectMessagesSinceIDQuery, topic, since.ID())
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}
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} else {
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rows, err = c.db.Query(selectMessagesSinceTimeQuery, topic, since.Time().Unix())
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if scheduled {
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rows, err = c.db.Query(selectMessagesSinceTimeIncludeScheduledQuery, topic, since.Time().Unix())
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} else {
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rows, err = c.db.Query(selectMessagesSinceTimeQuery, topic, since.Time().Unix())
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}
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}
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if err != nil {
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return nil, err
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@@ -373,6 +436,8 @@ func setupCacheDB(db *sql.DB) error {
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return migrateFrom2(db)
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} else if schemaVersion == 3 {
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return migrateFrom3(db)
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} else if schemaVersion == 4 {
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return migrateFrom4(db)
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}
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return fmt.Errorf("unexpected schema version found: %d", schemaVersion)
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}
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@@ -434,5 +499,16 @@ func migrateFrom3(db *sql.DB) error {
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if _, err := db.Exec(updateSchemaVersion, 4); err != nil {
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return err
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}
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return migrateFrom4(db)
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}
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func migrateFrom4(db *sql.DB) error {
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log.Print("Migrating cache database schema: from 4 to 5")
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if _, err := db.Exec(migrate4To5AlterMessagesTableQuery); err != nil {
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return err
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}
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if _, err := db.Exec(updateSchemaVersion, 5); err != nil {
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return err
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}
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return nil // Update this when a new version is added
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}
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