No testing has been performed yet, but changes are extensive enough to
warrant a commit. Of particular note:
- SQL states are enumerated in a separate trait to reduce duplication
- PDOStatement is now an abstract class to avoid duplication of
engine-specific error handling
- Error handling has been cleaned up somewhat
Includes PHPDoc license tag in the file-level block with accompanying copyright notice.
Also added an AUTHORS file on the off chance of outside contributions
- Specifying a non-integer parent no longer silently casts to 0 or 1
- Specifying a folder ID of 0 now always converts to null automatically
- Performing both a rename and move to root in the same operation no longer results in potential duplicates
- Calling folderSetProperties with an empty data array no peforms an update; it now returns false before the update call
- Modification timestamps are now actually updated when a folder is modified
- Constraint violation exceptions triggered by code (rather than the database) now print a message
- Renaming a folder or subscription to a non-string value (e.g. an array) throws an exception rather than silently casting
- Added tests to better cover all the above
- Centralized the normalization of integers and title strings into a new ValueInfo static class
