And catch other errors and throw StopIteration so that they stop the
search. (Non-StopIteration errors in onRow don't stop Sqlite.jsm
queries. We were logging them but then re-throwing them, which didn't do
anything.)
This required doing additional caching at startup (e.g., item types and fields)
so that various methods can remain synchronous.
This lets us switch back to using the current Sqlite.jsm. Previously we were
bundling the Fx24 version, which avoided freezes with locking_mode=EXCLUSIVE
with both sync and async queries.
Known broken things:
- Autocomplete
- Database backup
- UDFs (e.g., REGEXP function used in Zotero.DB.getNextName())
- Zotero.Item.prototype.getFilePath() is now synchronous, with a separate async getFilePathAsync()
- getFile() no longer takes a skipExistsCheck parameter, since that shouldn't happen synchronously
- Zotero.Items.getByLibraryAndKey() is now synchronous again, with a
separate Zotero.Items.getByLibraryAndKeyAsync() - I haven't fully
tested this, so I'm not sure if there will need to be any async
calls.
- Some of the full-text indexing functions now take file paths instead of nsIFile objects
- Zotero.File.getContentsAsync() can now take a string path as well
Promise-based rewrite of most of the codebase, with asynchronous database and file access -- see https://github.com/zotero/zotero/issues/518 for details.
WARNING: This includes backwards-incompatible schema changes.
An incomplete list of other changes:
- Schema overhaul
- Replace main tables with new versions with updated schema
- Enable real foreign key support and remove previous triggers
- Don't use NULLs for local libraryID, which broke the UNIQUE index
preventing object key duplication. All code (Zotero and third-party)
using NULL for the local library will need to be updated to use 0
instead (already done for Zotero code)
- Add 'compatibility' DB version that can be incremented manually to break DB
compatibility with previous versions. 'userdata' upgrades will no longer
automatically break compatibility.
- Demote creators and tags from first-class objects to item properties
- New API syncing properties
- 'synced'/'version' properties to data objects
- 'etag' to groups
- 'version' to libraries
- Create Zotero.DataObject that other objects inherit from
- Consolidate data object loading into Zotero.DataObjects
- Change object reloading so that only the loaded and changed parts of objects are reloaded, instead of reloading all data from the database (with some exceptions, including item primary data)
- Items and collections now have .parentItem and .parentKey properties, replacing item.getSource() and item.getSourceKey()
- New function Zotero.serial(fn), to wrap an async function such that all calls are run serially
- New function Zotero.Utilities.Internal.forEachChunkAsync(arr, chunkSize, func)
- Add tag selector loading message
- Various API and name changes, since everything was breaking anyway
Known broken things:
- Syncing (will be completely rewritten for API syncing)
- Translation architecture (needs promise-based rewrite)
- Duplicates view
- DB integrity check (from schema changes)
- Dragging (may be difficult to fix)
Lots of other big and little things are certainly broken, particularly with the UI, which can be affected by async code in all sorts of subtle ways.
Possibly to other places as well (but not Notepad, which doesn't work
from Firefox or Chrome either)
Unfortunately this requires going back to 'copy' cursor feedback when
dragging, even when Shift is used. We can only choose one on Windows (as
far as I can tell), and we were previously using the unadorned 'move'.
nsICollation broke for some locales. (Testing requires changing the
language setting in Language & Region and then restarting the computer.
The change seems to not fully go into effect until then, even though the
UI changes.) This is fixed in Nightly, but we can work around it by
using the new Intl.Collator.
