37 lines
1.1 KiB
Go
37 lines
1.1 KiB
Go
package deltas
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import (
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"context"
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"database/sql"
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"fmt"
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"github.com/lib/pq"
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"github.com/matrix-org/gomatrixserverlib"
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)
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// I know what you're thinking: you're wondering "why doesn't this use $1
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// and pass variadic parameters to ExecContext?" — the answer is because
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// PostgreSQL doesn't expect the table name to be specified as a substituted
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// argument in that way so it results in a syntax error in the query.
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func UpServerNamesPopulate(ctx context.Context, tx *sql.Tx, serverName gomatrixserverlib.ServerName) error {
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for _, table := range serverNamesTables {
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q := fmt.Sprintf(
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"SELECT name FROM sqlite_schema WHERE type='table' AND name=%s;",
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pq.QuoteIdentifier(table),
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)
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var c int
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if err := tx.QueryRowContext(ctx, q).Scan(&c); err != nil || c == 0 {
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continue
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}
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q = fmt.Sprintf(
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"UPDATE %s SET server_name = %s WHERE server_name = '';",
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pq.QuoteIdentifier(table), pq.QuoteLiteral(string(serverName)),
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)
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if _, err := tx.ExecContext(ctx, q); err != nil {
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return fmt.Errorf("write server names to %q error: %w", table, err)
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}
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}
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return nil
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}
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