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prompt refactor
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@@ -9,7 +9,7 @@ use super::Db;
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use crate::Result;
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/// Current schema version. Bump on every forward migration added below.
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pub(super) const SCHEMA_VERSION: i64 = 15;
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pub(super) const SCHEMA_VERSION: i64 = 16;
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impl Db {
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pub(super) fn migrate(&self) -> Result<()> {
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@@ -81,6 +81,9 @@ impl Db {
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if current < 15 {
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tx.execute_batch(MIGRATION_V15)?;
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}
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if current < 16 {
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tx.execute_batch(MIGRATION_V16)?;
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}
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tx.execute(
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"INSERT INTO sync_state (key, value) VALUES ('schema_version', ?1)
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ON CONFLICT(key) DO UPDATE SET value = excluded.value",
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@@ -369,3 +372,37 @@ CREATE VIRTUAL TABLE nodes_fts USING fts5(
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INSERT INTO nodes_fts (rowid, name)
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SELECT rowid, name FROM nodes WHERE trashed = 0;
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";
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/// Schema v16: fuzzy search needs a bounded candidate set that includes parent
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/// paths. Keeping the path in the trigram indexes lets SQLite narrow both name
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/// and path candidates without walking either base table for every keystroke.
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/// Node paths are initially backfilled below and subsequently maintained by the
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/// node write path (including descendants after a folder move/rename).
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const MIGRATION_V16: &str = "
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DROP TABLE IF EXISTS nodes_fts;
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CREATE VIRTUAL TABLE nodes_fts USING fts5(
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name, path, tokenize='trigram'
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);
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CREATE INDEX IF NOT EXISTS idx_nodes_name_nocase ON nodes(name COLLATE NOCASE);
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INSERT INTO nodes_fts (rowid, name, path)
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WITH RECURSIVE paths(rowid, uid, path) AS (
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SELECT n.rowid, n.uid, '' FROM nodes n
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WHERE n.parent_uid IS NULL
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OR NOT EXISTS (SELECT 1 FROM nodes p WHERE p.uid = n.parent_uid)
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UNION ALL
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SELECT n.rowid, n.uid,
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CASE WHEN paths.path = '' THEN n.name ELSE paths.path || '/' || n.name END
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FROM nodes n JOIN paths ON n.parent_uid = paths.uid
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)
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SELECT n.rowid, n.name, paths.path
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FROM nodes n JOIN paths ON paths.rowid = n.rowid
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WHERE n.trashed = 0;
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DROP TABLE IF EXISTS local_fts;
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CREATE VIRTUAL TABLE local_fts USING fts5(
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name, path, content='local_files', content_rowid='id', tokenize='trigram'
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);
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CREATE INDEX IF NOT EXISTS idx_local_files_name_nocase
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ON local_files(name COLLATE NOCASE);
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INSERT INTO local_fts(local_fts) VALUES('rebuild');
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";
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