package sqlitedialect import ( "database/sql" "encoding/hex" "github.com/uptrace/bun/dialect" "github.com/uptrace/bun/dialect/feature" "github.com/uptrace/bun/dialect/sqltype" "github.com/uptrace/bun/schema" ) type Dialect struct { schema.BaseDialect tables *schema.Tables features feature.Feature } func New() *Dialect { d := new(Dialect) d.tables = schema.NewTables(d) d.features = feature.CTE | feature.Returning | feature.InsertTableAlias | feature.DeleteTableAlias return d } func (d *Dialect) Init(*sql.DB) {} func (d *Dialect) Name() dialect.Name { return dialect.SQLite } func (d *Dialect) Features() feature.Feature { return d.features } func (d *Dialect) Tables() *schema.Tables { return d.tables } func (d *Dialect) OnTable(table *schema.Table) { for _, field := range table.FieldMap { d.onField(field) } } func (d *Dialect) onField(field *schema.Field) { field.DiscoveredSQLType = fieldSQLType(field) } func (d *Dialect) IdentQuote() byte { return '"' } func (d *Dialect) AppendBytes(b []byte, bs []byte) []byte { if bs == nil { return dialect.AppendNull(b) } b = append(b, `X'`...) s := len(b) b = append(b, make([]byte, hex.EncodedLen(len(bs)))...) hex.Encode(b[s:], bs) b = append(b, '\'') return b } func fieldSQLType(field *schema.Field) string { switch field.DiscoveredSQLType { case sqltype.SmallInt, sqltype.BigInt: // INTEGER PRIMARY KEY is an alias for the ROWID. // It is safe to convert all ints to INTEGER, because SQLite types don't have size. return sqltype.Integer default: return field.DiscoveredSQLType } }