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Code Issues Releases Wiki Activity

Improve manual transaction handling

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Thanks @hoelzro
This commit is contained in:
Jeremy Ruston 2024-02-24 09:31:59 +00:00
parent 343cc33bbe
commit d5aa74d9af
1 changed files with 3 additions and 2 deletions
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5
plugins/tiddlywiki/multiwikiserver/modules/sql-tiddler-database.js
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@ -500,7 +500,7 @@ SqlTiddlerDatabase.prototype.getRecipeBags = function(recipename) {
/*
Execute the given function in a transaction, committing if successful but rolling back if an error occurs. Returns whatever the given function returns.
Calls to this function can be safely nested, but only the top-most call will actually take place in a transaction.
Calls to this function can be safely nested, but only the topmost call will actually take place in a transaction.
*/
SqlTiddlerDatabase.prototype.transaction = function(fn) {
const alreadyInTransaction = this.transactionDepth > 0;
@ -508,12 +508,13 @@ SqlTiddlerDatabase.prototype.transaction = function(fn) {
if(alreadyInTransaction) {
return fn();
} else {
this.runStatement(`BEGIN TRANSACTION`);
try {
this.runStatement(`BEGIN TRANSACTION`);
var result = fn();
this.runStatement(`COMMIT TRANSACTION`);
} catch(e) {
this.runStatement(`ROLLBACK TRANSACTION`);
throw(e);
} finally {
this.transactionDepth--;
}