71 lines
1.5 KiB
Go
71 lines
1.5 KiB
Go
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package database
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import (
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"log"
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"database/sql"
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_ "github.com/mattn/go-sqlite3"
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)
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type Migrator func(*sql.DB) (*sql.DB, error)
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func AddFriends(dbConn *sql.DB) (*sql.DB, error) {
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_, err := dbConn.Exec(`CREATE TABLE IF NOT EXISTS frens (
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id TEXT PRIMARY KEY,
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name TEXT
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);`)
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if err != nil {
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return dbConn, err
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}
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log.Println("creating unique index on frens table")
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_, err = dbConn.Exec(`CREATE UNIQUE INDEX IF NOT EXISTS idx_frens_name ON frens (name);`)
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if err != nil {
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return dbConn, err
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}
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return dbConn, nil
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}
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func AddMessages(dbConn *sql.DB) (*sql.DB, error) {
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_, err := dbConn.Exec(`CREATE TABLE IF NOT EXISTS messages (
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id TEXT PRIMARY KEY,
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fren_id TEXT,
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message TEXT,
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time TIMESTAMP,
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fren_sent BOOLEAN NOT NULL CHECK (fren_sent IN (0, 1)),
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FOREIGN KEY (fren_id) REFERENCES frens (id) ON DELETE CASCADE
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);`)
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if err != nil {
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return dbConn, err
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}
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log.Println("creating time and fren_id index on message table")
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_, err = dbConn.Exec(`CREATE INDEX IF NOT EXISTS idx_message_timestamp ON messages (time);`)
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_, err = dbConn.Exec(`CREATE INDEX IF NOT EXISTS idx_message_fren ON messages (fren_id);`)
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if err != nil {
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return dbConn, err
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}
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return dbConn, nil
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}
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func Migrate(dbConn *sql.DB) (*sql.DB, error) {
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log.Println("migrating database")
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migrations := []Migrator{
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AddFriends,
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AddMessages,
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}
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for _, migration := range migrations {
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dbConn, err := migration(dbConn)
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if err != nil {
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return dbConn, err
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}
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}
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return dbConn, nil
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}
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