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Fix loading of compressed global schema from DB on downgrade

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This commit is contained in:
Dan Stillman 2019-12-12 03:41:12 -07:00
parent f5d544bc15
commit 8fe33dc91c
2 changed files with 11 additions and 6 deletions
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4
chrome/content/zotero/xpcom/db.js
View file

@ -580,7 +580,9 @@ Zotero.DBConnection.prototype.queryAsync = Zotero.Promise.coroutine(function* (s
try {
let onRow = null;
let conn = this._getConnection(options) || (yield this._getConnectionAsync(options));
[sql, params] = this.parseQueryAndParams(sql, params);
if (!options || !options.noParseParams) {
[sql, params] = this.parseQueryAndParams(sql, params);
}
if (Zotero.Debug.enabled) {
this.logQuery(sql, params, options);
}

13
chrome/content/zotero/xpcom/schema.js
View file

@ -322,13 +322,12 @@ Zotero.Schema = new function(){
* Doesn't include the .itemTypes property, which was already applied to the mapping tables
*/
async function _readGlobalSchemaFromDB() {
var pako = {};
Services.scriptloader.loadSubScript("resource://zotero/pako.js", pako);
var data = await Zotero.DB.valueQueryAsync(
"SELECT value FROM settings WHERE setting='globalSchema' AND key='data'"
);
if (data) {
try {
let pako = require('pako');
return JSON.parse(pako.inflate(data, { to: 'string' }));
}
catch (e) {
@ -360,7 +359,8 @@ Zotero.Schema = new function(){
var dbVersion = await Zotero.Schema.getDBVersion('globalSchema') || null;
if (dbVersion > version) {
Zotero.debug(`Database has newer global schema (${dbVersion} > ${version}) -- skipping update`);
Zotero.debug(`Database has newer global schema (${dbVersion} > ${version}) `
+ `-- skipping update and using schema from DB`);
return -1;
}
else if (dbVersion == version) {
@ -524,9 +524,12 @@ Zotero.Schema = new function(){
// Don't include types and fields, which are already in the mapping tables
delete dbData.itemTypes;
await Zotero.DB.queryAsync(
"REPLACE INTO settings VALUES ('globalSchema', 'data', ?)",
pako.deflate(JSON.stringify(dbData), { to: 'string' }),
"REPLACE INTO settings VALUES ('globalSchema', 'data', :data)",
{ data: pako.deflate(JSON.stringify(dbData)) },
{
// Hack to pass named parameter to Sqlite.jsm, which in Fx60 treats an object passed
// as the the first parameter in a parameter array as an object of named parameters
noParseParams: true,
debugParams: false
}
);