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fixed trigger

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haex
2025-10-23 13:17:58 +02:00
parent 99ccadce00
commit 4f839aa856
42 changed files with 535 additions and 10695 deletions
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55
src-tauri/src/crdt/trigger.rs
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@ -12,18 +12,16 @@ const UPDATE_TRIGGER_TPL: &str = "z_crdt_{TABLE_NAME}_update";
const DELETE_TRIGGER_TPL: &str = "z_crdt_{TABLE_NAME}_delete";
//const SYNC_ACTIVE_KEY: &str = "sync_active";
pub const TOMBSTONE_COLUMN: &str = "haex_tombstone";
pub const HLC_TIMESTAMP_COLUMN: &str = "haex_timestamp";
/// Name der custom UUID-Generierungs-Funktion (registriert in database::core::open_and_init_db)
pub const UUID_FUNCTION_NAME: &str = "gen_uuid";
#[derive(Debug)]
pub enum CrdtSetupError {
/// Kapselt einen Fehler, der von der rusqlite-Bibliothek kommt.
DatabaseError(rusqlite::Error),
/// Die Tabelle hat keine Tombstone-Spalte, was eine CRDT-Voraussetzung ist.
TombstoneColumnMissing {
table_name: String,
column_name: String,
},
HlcColumnMissing {
table_name: String,
column_name: String,
@ -37,14 +35,6 @@ impl Display for CrdtSetupError {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
match self {
CrdtSetupError::DatabaseError(e) => write!(f, "Database error: {}", e),
CrdtSetupError::TombstoneColumnMissing {
table_name,
column_name,
} => write!(
f,
"Table '{}' is missing the required tombstone column '{}'",
table_name, column_name
),
CrdtSetupError::HlcColumnMissing {
table_name,
column_name,
@ -110,13 +100,6 @@ pub fn setup_triggers_for_table(
return Ok(TriggerSetupResult::TableNotFound);
}
if !columns.iter().any(|c| c.name == TOMBSTONE_COLUMN) {
return Err(CrdtSetupError::TombstoneColumnMissing {
table_name: table_name.to_string(),
column_name: TOMBSTONE_COLUMN.to_string(),
});
}
if !columns.iter().any(|c| c.name == HLC_TIMESTAMP_COLUMN) {
return Err(CrdtSetupError::HlcColumnMissing {
table_name: table_name.to_string(),
@ -138,7 +121,7 @@ pub fn setup_triggers_for_table(
let cols_to_track: Vec<String> = columns
.iter()
.filter(|c| !c.is_pk) //&& c.name != TOMBSTONE_COLUMN && c.name != HLC_TIMESTAMP_COLUMN
.filter(|c| !c.is_pk)
.map(|c| c.name.clone())
.collect();
@ -269,9 +252,10 @@ fn generate_insert_trigger_sql(table_name: &str, pks: &[String], cols: &[String]
let column_inserts = if cols.is_empty() {
// Nur PKs -> einfacher Insert ins Log
format!(
"INSERT INTO {log_table} (haex_timestamp, op_type, table_name, row_pks)
VALUES (NEW.\"{hlc_col}\", 'INSERT', '{table}', json_object({pk_payload}));",
"INSERT INTO {log_table} (id, haex_timestamp, op_type, table_name, row_pks)
VALUES ({uuid_fn}(), NEW.\"{hlc_col}\", 'INSERT', '{table}', json_object({pk_payload}));",
log_table = TABLE_CRDT_LOGS,
uuid_fn = UUID_FUNCTION_NAME,
hlc_col = HLC_TIMESTAMP_COLUMN,
table = table_name,
pk_payload = pk_json_payload
@ -280,9 +264,10 @@ fn generate_insert_trigger_sql(table_name: &str, pks: &[String], cols: &[String]
cols.iter().fold(String::new(), |mut acc, col| {
writeln!(
&mut acc,
"INSERT INTO {log_table} (haex_timestamp, op_type, table_name, row_pks, column_name, new_value)
VALUES (NEW.\"{hlc_col}\", 'INSERT', '{table}', json_object({pk_payload}), '{column}', json_object('value', NEW.\"{column}\"));",
"INSERT INTO {log_table} (id, haex_timestamp, op_type, table_name, row_pks, column_name, new_value)
VALUES ({uuid_fn}(), NEW.\"{hlc_col}\", 'INSERT', '{table}', json_object({pk_payload}), '{column}', json_object('value', NEW.\"{column}\"));",
log_table = TABLE_CRDT_LOGS,
uuid_fn = UUID_FUNCTION_NAME,
hlc_col = HLC_TIMESTAMP_COLUMN,
table = table_name,
pk_payload = pk_json_payload,
@ -324,11 +309,12 @@ fn generate_update_trigger_sql(table_name: &str, pks: &[String], cols: &[String]
for col in cols {
writeln!(
&mut body,
"INSERT INTO {log_table} (haex_timestamp, op_type, table_name, row_pks, column_name, new_value, old_value)
SELECT NEW.\"{hlc_col}\", 'UPDATE', '{table}', json_object({pk_payload}), '{column}',
"INSERT INTO {log_table} (id, haex_timestamp, op_type, table_name, row_pks, column_name, new_value, old_value)
SELECT {uuid_fn}(), NEW.\"{hlc_col}\", 'UPDATE', '{table}', json_object({pk_payload}), '{column}',
json_object('value', NEW.\"{column}\"), json_object('value', OLD.\"{column}\")
WHERE NEW.\"{column}\" IS NOT OLD.\"{column}\";",
log_table = TABLE_CRDT_LOGS,
uuid_fn = UUID_FUNCTION_NAME,
hlc_col = HLC_TIMESTAMP_COLUMN,
table = table_name,
pk_payload = pk_json_payload,
@ -367,10 +353,11 @@ fn generate_delete_trigger_sql(table_name: &str, pks: &[String], cols: &[String]
for col in cols {
writeln!(
&mut body,
"INSERT INTO {log_table} (haex_timestamp, op_type, table_name, row_pks, column_name, old_value)
VALUES (OLD.\"{hlc_col}\", 'DELETE', '{table}', json_object({pk_payload}), '{column}',
"INSERT INTO {log_table} (id, haex_timestamp, op_type, table_name, row_pks, column_name, old_value)
VALUES ({uuid_fn}(), OLD.\"{hlc_col}\", 'DELETE', '{table}', json_object({pk_payload}), '{column}',
json_object('value', OLD.\"{column}\"));",
log_table = TABLE_CRDT_LOGS,
uuid_fn = UUID_FUNCTION_NAME,
hlc_col = HLC_TIMESTAMP_COLUMN,
table = table_name,
pk_payload = pk_json_payload,
@ -381,13 +368,15 @@ fn generate_delete_trigger_sql(table_name: &str, pks: &[String], cols: &[String]
// Nur PKs -> minimales Delete Log
writeln!(
&mut body,
"INSERT INTO {log_table} (haex_timestamp, op_type, table_name, row_pks)
VALUES (OLD.\"{hlc_col}\", 'DELETE', '{table}', json_object({pk_payload}));",
"INSERT INTO {log_table} (id, haex_timestamp, op_type, table_name, row_pks)
VALUES ({uuid_fn}(), OLD.\"{hlc_col}\", 'DELETE', '{table}', json_object({pk_payload}));",
log_table = TABLE_CRDT_LOGS,
uuid_fn = UUID_FUNCTION_NAME,
hlc_col = HLC_TIMESTAMP_COLUMN,
table = table_name,
pk_payload = pk_json_payload
).unwrap();
)
.unwrap();
}
let trigger_name = DELETE_TRIGGER_TPL.replace("{TABLE_NAME}", table_name);