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43 lines
947 B
Go
43 lines
947 B
Go
package virtualfs
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import (
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"context"
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"database/sql"
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"errors"
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"strings"
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"github.com/google/uuid"
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"github.com/uptrace/bun"
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)
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const absolutePathQuery = `WITH RECURSIVE path AS (
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SELECT id, parent_id, name, 1 as depth
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FROM vfs_nodes WHERE id = $1 AND deleted_at IS NULL
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UNION ALL
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SELECT n.id, n.parent_id, n.name, p.depth + 1
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FROM vfs_nodes n
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JOIN path p ON n.id = p.parent_id
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WHERE n.deleted_at IS NULL
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)
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SELECT name FROM path
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WHERE EXISTS (SELECT 1 FROM path WHERE parent_id IS NULL)
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ORDER BY depth DESC;`
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func JoinPath(parts ...string) string {
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return strings.Join(parts, "/")
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}
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func buildNodeAbsolutePath(ctx context.Context, db *bun.DB, nodeID uuid.UUID) (string, error) {
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var path []string
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err := db.NewRaw(absolutePathQuery, nodeID).Scan(ctx, &path)
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if err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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return "", ErrNodeNotFound
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}
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return "", err
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}
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return JoinPath(path...), nil
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}
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