dart sdk / dartium 1.13 indexed_db changes - compound index keys and multi-store transactions broken

[Jim Trainor]

I updated to Dart SDK + Dartium 1.13, on OSX 10.0.5, and discovered that Dartium's indexed_db implementation appears to have changed.  It no longer supports compound index keys and transactions on multiple object stores.  Anyone have any idea what happened?  I was using 1.11 before I updated so there is a chance that this change happened in 1.12.

It is not a big problem for my larger code base because other browsers do not support these features therefore I don't depend on them.  I do, however, have tests for each feature that I expect a browser to support, so that I can keep track of what works where, hence I noticed these changes immediately.

[Daniel Joyce]

Bit of a big change for a dot release. 

On Fri, Nov 20, 2015 at 5:32 AM Jim Trainor <jim.train...@gmail.com> wrote:

I updated to Dart SDK + Dartium 1.13, on OSX 10.0.5, and discovered that Dartium's indexed_db implementation appears to have changed.  It no longer supports compound index keys and transactions on multiple object stores.  Anyone have any idea what happened?  I was using 1.11 before I updated so there is a chance that this change happened in 1.12.

It is not a big problem for my larger code base because other browsers do not support these features therefore I don't depend on them.  I do, however, have tests for each feature that I expect a browser to support, so that I can keep track of what works where, hence I noticed these changes immediately.

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Daniel Joyce

The meek shall inherit the Earth, for the brave will be among the stars.

[Alan Knight]

The change in Dartium is that most things are going through JS Interop rather than through C++ APIs in the browser. So this might be a side effect of that change. Do you have an example that demonstrates the issue?

[Jim Trainor]

If it is a side effect of the js interop change then I’d guess there is a small issue interpreting list versus scalar arguments passed through the indexed_db api.  There were similar problems with the indexed_db in the Dart’s earlier days. I’ll make a standalone test and post a bug.

[Jim Trainor]

New bug created complete with test code:

https://github.com/dart-lang/sdk/issues/25013