diff options
Diffstat (limited to 'vendor/github.com/uptrace/bun/query_table_truncate.go')
-rw-r--r-- | vendor/github.com/uptrace/bun/query_table_truncate.go | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/vendor/github.com/uptrace/bun/query_table_truncate.go b/vendor/github.com/uptrace/bun/query_table_truncate.go new file mode 100644 index 000000000..1e4bef7f6 --- /dev/null +++ b/vendor/github.com/uptrace/bun/query_table_truncate.go @@ -0,0 +1,121 @@ +package bun + +import ( + "context" + "database/sql" + + "github.com/uptrace/bun/dialect/feature" + "github.com/uptrace/bun/internal" + "github.com/uptrace/bun/schema" +) + +type TruncateTableQuery struct { + baseQuery + cascadeQuery + + continueIdentity bool +} + +func NewTruncateTableQuery(db *DB) *TruncateTableQuery { + q := &TruncateTableQuery{ + baseQuery: baseQuery{ + db: db, + conn: db.DB, + }, + } + return q +} + +func (q *TruncateTableQuery) Conn(db IConn) *TruncateTableQuery { + q.setConn(db) + return q +} + +func (q *TruncateTableQuery) Model(model interface{}) *TruncateTableQuery { + q.setTableModel(model) + return q +} + +//------------------------------------------------------------------------------ + +func (q *TruncateTableQuery) Table(tables ...string) *TruncateTableQuery { + for _, table := range tables { + q.addTable(schema.UnsafeIdent(table)) + } + return q +} + +func (q *TruncateTableQuery) TableExpr(query string, args ...interface{}) *TruncateTableQuery { + q.addTable(schema.SafeQuery(query, args)) + return q +} + +//------------------------------------------------------------------------------ + +func (q *TruncateTableQuery) ContinueIdentity() *TruncateTableQuery { + q.continueIdentity = true + return q +} + +func (q *TruncateTableQuery) Restrict() *TruncateTableQuery { + q.restrict = true + return q +} + +//------------------------------------------------------------------------------ + +func (q *TruncateTableQuery) AppendQuery( + fmter schema.Formatter, b []byte, +) (_ []byte, err error) { + if q.err != nil { + return nil, q.err + } + + if !fmter.HasFeature(feature.TableTruncate) { + b = append(b, "DELETE FROM "...) + + b, err = q.appendTables(fmter, b) + if err != nil { + return nil, err + } + + return b, nil + } + + b = append(b, "TRUNCATE TABLE "...) + + b, err = q.appendTables(fmter, b) + if err != nil { + return nil, err + } + + if q.db.features.Has(feature.TableIdentity) { + if q.continueIdentity { + b = append(b, " CONTINUE IDENTITY"...) + } else { + b = append(b, " RESTART IDENTITY"...) + } + } + + b = q.appendCascade(fmter, b) + + return b, nil +} + +//------------------------------------------------------------------------------ + +func (q *TruncateTableQuery) Exec(ctx context.Context, dest ...interface{}) (sql.Result, error) { + queryBytes, err := q.AppendQuery(q.db.fmter, q.db.makeQueryBytes()) + if err != nil { + return nil, err + } + + query := internal.String(queryBytes) + + res, err := q.exec(ctx, q, query) + if err != nil { + return nil, err + } + + return res, nil +} |