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Fix for "database disk image is malformed" error during the upgrade process

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A direct SQL copy of fulltextItems seems to expose an SQLite or Firefox bug related to the size of the transaction, so we save the rows to a JS array and update after the transaction

Hopefully I did this without breaking regular upgrades.
This commit is contained in:
Dan Stillman 2007-08-16 02:22:03 +00:00
parent a64c4f8e15
commit 96890b8e95
1 changed files with 28 additions and 1 deletions
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29
chrome/content/zotero/xpcom/schema.js
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@ -35,6 +35,7 @@ Zotero.Schema = new function(){
var _repositoryTimer;
var _remoteUpdateInProgress = false;
var _fulltextItemWordsCache = [];
function userDataUpgradeRequired() {
var dbVersion = _getDBVersion('userdata');
@ -127,6 +128,27 @@ Zotero.Schema = new function(){
throw(e);
}
// Workaround for upgrade error in step 35
if (_fulltextItemWordsCache) {
Zotero.DB.beginTransaction();
try {
sql = "INSERT INTO fulltextItemWords VALUES (?,?)";
var insertStatement = Zotero.DB.getStatement(sql);
for (var j=0; j<_fulltextItemWordsCache.length; j++) {
insertStatement.bindInt32Parameter(0, _fulltextItemWordsCache[j]['wordID']);
insertStatement.bindInt32Parameter(1, _fulltextItemWordsCache[j]['itemID']);
insertStatement.execute();
}
insertStatement.reset();
Zotero.DB.commitTransaction();
}
catch (e) {
Zotero.debug(e);
Zotero.DB.rollbackTransaction();
throw(e);
}
}
if (up1) {
// Upgrade seems to have been a success -- delete any previous backups
var maxPrevious = dbVersion - 1;
@ -1120,7 +1142,12 @@ Zotero.Schema = new function(){
if (i==35) {
Zotero.DB.query("CREATE TABLE fulltextItemWords (\n wordID INT,\n itemID INT,\n PRIMARY KEY (wordID, itemID),\n FOREIGN KEY (wordID) REFERENCES fulltextWords(wordID),\n FOREIGN KEY (itemID) REFERENCES items(itemID)\n);");
Zotero.DB.query("INSERT INTO fulltextItemWords SELECT * FROM fulltextItems");
// A direct copy to fulltextItemWords seems to expose an SQLite or Firefox bug
// related to the size of the transaction, so we save the rows to a JS array and
// update after the transaction
_fulltextItemWordsCache = Zotero.DB.query("SELECT * FROM fulltextItems");
Zotero.DB.query("DROP TABLE fulltextItems");
Zotero.DB.query("CREATE TABLE fulltextItems (\n itemID INT,\n version INT,\n PRIMARY KEY (itemID),\n FOREIGN KEY (itemID) REFERENCES items(itemID)\n);");
Zotero.DB.query("INSERT INTO fulltextItems SELECT DISTINCT itemID, 1 FROM fulltextItemWords");