snapshot of https://github.com/ory/keto.git (master, 2026-09-16; blobs > 131072B omitted)

oryx/popx/db_columns.go

@@ -0,0 +1,60 @@
+// Copyright © 2025 Ory Corp
+// SPDX-License-Identifier: Apache-2.0
+
+package popx
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/ory/pop/v6"
+)
+
+func DBColumns[T any](quoter Quoter) string {
+	return (&pop.Model{Value: new(T)}).Columns().QuotedString(quoter)
+}
+
+// IndexHint returns the table name including the index hint, if the database
+// supports it.
+func IndexHint(conn *pop.Connection, table string, index string) string {
+	if conn.Dialect.Name() == "cockroach" {
+		return table + "@" + index
+	}
+	// PostgreSQL and YugabyteDB do not accept CockroachDB's @index syntax.
+	return table
+}
+
+func DBColumnsExcluding[T any](quoter Quoter, exclude ...string) string {
+	cols := (&pop.Model{Value: new(T)}).Columns()
+	for _, e := range exclude {
+		cols.Remove(e)
+	}
+	return cols.QuotedString(quoter)
+}
+
+type (
+	AliasQuoter struct {
+		Alias  string
+		Quoter Quoter
+	}
+	Quoter interface {
+		Quote(key string) string
+	}
+)
+
+func (pq *AliasQuoter) Quote(key string) string {
+	return fmt.Sprintf("%s.%s", pq.Quoter.Quote(pq.Alias), pq.Quoter.Quote(key))
+}
+
+// Placeholders returns `num` placeholders ?, e.g. "?, ?, ?".
+// Placeholders(0) returns "".
+func Placeholders(num int) string {
+	switch num {
+	case 0:
+		return ""
+	case 1:
+		return "?"
+	default:
+		return strings.Repeat("?, ", num-1) + "?"
+	}
+}