mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2025-10-31 09:02:25 -05:00
133 lines
3.1 KiB
Go
133 lines
3.1 KiB
Go
package pgdialect
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import (
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"database/sql"
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"fmt"
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"strconv"
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"strings"
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"github.com/uptrace/bun"
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"github.com/uptrace/bun/dialect"
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"github.com/uptrace/bun/dialect/feature"
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"github.com/uptrace/bun/dialect/sqltype"
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"github.com/uptrace/bun/migrate/sqlschema"
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"github.com/uptrace/bun/schema"
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)
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var pgDialect = New()
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func init() {
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if Version() != bun.Version() {
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panic(fmt.Errorf("pgdialect and Bun must have the same version: v%s != v%s",
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Version(), bun.Version()))
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}
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}
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type Dialect struct {
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schema.BaseDialect
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tables *schema.Tables
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features feature.Feature
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}
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var _ schema.Dialect = (*Dialect)(nil)
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var _ sqlschema.InspectorDialect = (*Dialect)(nil)
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var _ sqlschema.MigratorDialect = (*Dialect)(nil)
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func New() *Dialect {
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d := new(Dialect)
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d.tables = schema.NewTables(d)
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d.features = feature.CTE |
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feature.WithValues |
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feature.Returning |
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feature.InsertReturning |
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feature.DefaultPlaceholder |
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feature.DoubleColonCast |
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feature.InsertTableAlias |
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feature.UpdateTableAlias |
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feature.DeleteTableAlias |
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feature.TableCascade |
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feature.TableIdentity |
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feature.TableTruncate |
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feature.TableNotExists |
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feature.InsertOnConflict |
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feature.SelectExists |
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feature.GeneratedIdentity |
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feature.CompositeIn |
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feature.DeleteReturning
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return d
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}
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func (d *Dialect) Init(*sql.DB) {}
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func (d *Dialect) Name() dialect.Name {
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return dialect.PG
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}
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func (d *Dialect) Features() feature.Feature {
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return d.features
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}
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func (d *Dialect) Tables() *schema.Tables {
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return d.tables
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}
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func (d *Dialect) OnTable(table *schema.Table) {
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for _, field := range table.FieldMap {
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d.onField(field)
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}
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}
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func (d *Dialect) onField(field *schema.Field) {
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field.DiscoveredSQLType = fieldSQLType(field)
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if field.AutoIncrement && !field.Identity {
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switch field.DiscoveredSQLType {
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case sqltype.SmallInt:
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field.CreateTableSQLType = pgTypeSmallSerial
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case sqltype.Integer:
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field.CreateTableSQLType = pgTypeSerial
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case sqltype.BigInt:
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field.CreateTableSQLType = pgTypeBigSerial
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}
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}
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if field.Tag.HasOption("array") || strings.HasSuffix(field.UserSQLType, "[]") {
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field.Append = d.arrayAppender(field.StructField.Type)
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field.Scan = arrayScanner(field.StructField.Type)
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return
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}
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if field.Tag.HasOption("multirange") {
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field.Append = d.arrayAppender(field.StructField.Type)
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field.Scan = arrayScanner(field.StructField.Type)
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return
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}
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switch field.DiscoveredSQLType {
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case sqltype.HSTORE:
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field.Append = d.hstoreAppender(field.StructField.Type)
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field.Scan = hstoreScanner(field.StructField.Type)
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}
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}
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func (d *Dialect) IdentQuote() byte {
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return '"'
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}
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func (d *Dialect) AppendUint32(b []byte, n uint32) []byte {
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return strconv.AppendInt(b, int64(int32(n)), 10)
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}
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func (d *Dialect) AppendUint64(b []byte, n uint64) []byte {
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return strconv.AppendInt(b, int64(n), 10)
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}
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func (d *Dialect) AppendSequence(b []byte, _ *schema.Table, _ *schema.Field) []byte {
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return appendGeneratedAsIdentity(b)
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}
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// appendGeneratedAsIdentity appends GENERATED BY DEFAULT AS IDENTITY to the column definition.
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func appendGeneratedAsIdentity(b []byte) []byte {
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return append(b, " GENERATED BY DEFAULT AS IDENTITY"...)
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}
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