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improvement: upgraded database schema to drop legacy tables

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Database schema is upgraded to version 5.  Legacy event and pubkey
tables are dropped, and indexes are added for NIP-05 verification.
This commit is contained in:
Greg Heartsfield 2022-02-12 13:47:03 -06:00
parent 7056aae227
commit 89d96e7ccd
1 changed files with 31 additions and 31 deletions
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62
src/schema.rs
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@ -24,7 +24,7 @@ PRAGMA journal_mode=WAL;
PRAGMA main.synchronous=NORMAL;
PRAGMA foreign_keys = ON;
PRAGMA application_id = 1654008667;
PRAGMA user_version = 4;
PRAGMA user_version = 5;
-- Event Table
CREATE TABLE IF NOT EXISTS event (
@ -59,28 +59,6 @@ FOREIGN KEY(event_id) REFERENCES event(id) ON UPDATE CASCADE ON DELETE CASCADE
CREATE INDEX IF NOT EXISTS tag_val_index ON tag(value);
CREATE INDEX IF NOT EXISTS tag_val_hex_index ON tag(value_hex);
-- Event References Table
CREATE TABLE IF NOT EXISTS event_ref (
id INTEGER PRIMARY KEY,
event_id INTEGER NOT NULL, -- an event ID that contains an #e tag.
referenced_event BLOB NOT NULL, -- the event that is referenced.
FOREIGN KEY(event_id) REFERENCES event(id) ON UPDATE CASCADE ON DELETE CASCADE
);
-- Event References Index
CREATE INDEX IF NOT EXISTS event_ref_index ON event_ref(referenced_event);
-- Pubkey References Table
CREATE TABLE IF NOT EXISTS pubkey_ref (
id INTEGER PRIMARY KEY,
event_id INTEGER NOT NULL, -- an event ID that contains an #p tag.
referenced_pubkey BLOB NOT NULL, -- the pubkey that is referenced.
FOREIGN KEY(event_id) REFERENCES event(id) ON UPDATE RESTRICT ON DELETE CASCADE
);
-- Pubkey References Index
CREATE INDEX IF NOT EXISTS pubkey_ref_index ON pubkey_ref(referenced_pubkey);
-- NIP-05 User Validation.
-- This represents the validation of a user.
-- cases;
@ -104,6 +82,8 @@ failed_at INTEGER, -- timestamp a verification attempt failed (host down).
failure_count INTEGER DEFAULT 0, -- number of consecutive failures.
FOREIGN KEY(metadata_event) REFERENCES event(id) ON UPDATE CASCADE ON DELETE CASCADE
);
CREATE INDEX IF NOT EXISTS user_verification_name_index ON user_verification(name);
CREATE INDEX IF NOT EXISTS user_verification_event_index ON user_verification(metadata_event);
"##;
/// Determine the current application database schema version.
@ -164,7 +144,7 @@ PRAGMA user_version = 2;
}
if curr_version == 2 {
// this version lacks the tag column
debug!("database schema needs update from 2->3");
info!("database schema needs update from 2->3");
let upgrade_sql = r##"
CREATE TABLE IF NOT EXISTS tag (
id INTEGER PRIMARY KEY,
@ -211,7 +191,7 @@ PRAGMA user_version = 3;
info!("Upgrade complete");
}
if curr_version == 3 {
debug!("database schema needs update from 3->4");
info!("database schema needs update from 3->4");
let upgrade_sql = r##"
-- incoming metadata events with nip05
CREATE TABLE IF NOT EXISTS user_verification (
@ -223,26 +203,46 @@ failed_at INTEGER, -- timestamp a verification attempt failed (host down).
failure_count INTEGER DEFAULT 0, -- number of consecutive failures.
FOREIGN KEY(metadata_event) REFERENCES event(id) ON UPDATE CASCADE ON DELETE CASCADE
);
CREATE INDEX IF NOT EXISTS user_verification_author_index ON user_verification(author);
CREATE INDEX IF NOT EXISTS user_verification_author_index ON user_verification(author);
CREATE INDEX IF NOT EXISTS user_verification_name_index ON user_verification(name);
CREATE INDEX IF NOT EXISTS user_verification_event_index ON user_verification(metadata_event);
PRAGMA user_version = 4;
"##;
// TODO: load existing refs into tag table
match conn.execute_batch(upgrade_sql) {
Ok(()) => {
info!("database schema upgraded v3 -> v4");
//curr_version = 4;
curr_version = 4;
}
Err(err) => {
error!("update failed: {}", err);
panic!("database could not be upgraded");
}
}
} else if curr_version == 4 {
}
if curr_version == 4 {
info!("database schema needs update from 4->5");
let upgrade_sql = r##"
DROP TABLE IF EXISTS event_ref;
DROP TABLE IF EXISTS pubkey_ref;
PRAGMA user_version=5;
"##;
match conn.execute_batch(upgrade_sql) {
Ok(()) => {
info!("database schema upgraded v4 -> v5");
// uncomment if we have a newer version
//curr_version = 5;
}
Err(err) => {
error!("update failed: {}", err);
panic!("database could not be upgraded");
}
}
} else if curr_version == 5 {
debug!("Database version was already current");
} else if curr_version > 3 {
} else if curr_version > 5 {
panic!("Database version is newer than supported by this executable");
}
// Setup PRAGMA
conn.execute_batch(STARTUP_SQL)?;
debug!("SQLite PRAGMA startup completed");