Summary:
Adds a Python function `PEEK()` for use in formulas which temporarily sets a new attribute `Engine._peeking` which disables the `_use_node` method, preventing dependency tracking and allowing the given expression to use outdated values. This allows circumventing circular reference errors. It's particularly meant for trigger formulas although it works in normal formulas as well. The expression is wrapped in a `lambda` by `codebuilder` for lazy evaluation.
Discussion: https://grist.slack.com/archives/C0234CPPXPA/p1653571024031359
Test Plan: Added a Python unit test for circular trigger formulas using PEEK.
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: paulfitz
Differential Revision: https://phab.getgrist.com/D3453
Summary: To help with mistakes in formulas, forbid assigning to attributes of `rec` (e.g. `$foo = 1` which should probably be `==`) and ensure that there is at least one `return` in the formula (after maybe adding an implicit one at the end).
Test Plan: Extended Python unit test, updated tests which were missing return.
Reviewers: georgegevoian
Reviewed By: georgegevoian
Subscribers: dsagal
Differential Revision: https://phab.getgrist.com/D3439
Summary: Update _create_syntax_error_code to raise an error with similar arguments to the real arguments it already has, with our modifications.
Test Plan: Updated python unit tests
Reviewers: jarek, dsagal
Reviewed By: dsagal
Subscribers: dsagal
Differential Revision: https://phab.getgrist.com/D3040
Summary: Changes that move towards python 3 compatibility that are easy to review without much thought
Test Plan: The tests
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2873
Summary:
this moves sandbox/grist to core, and adds a requirements.txt
file for reconstructing the content of sandbox/thirdparty.
Test Plan:
existing tests pass.
Tested core functionality manually. Tested docker build manually.
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2563
