Summary: title
Test Plan: Added python unit test. Seems like the first test of sort_by in the whole codebase.
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D3124
Summary:
Added a new object type code `l` (for lookup) which can be used in user actions as a temporary cell value in ref[list] columns and is immediately converted to a row ID in the data engine. The value contains the original raw string (to be used as alt text), the column ID to lookup (typically the visible column) and one or more values to lookup.
For reflists, valueParser now tries parsing the string first as JSON, then as a CSV row, and applies the visible column parsed to each item.
Both ref and reflists columns no longer format the parsed value when there's no matching reference, the original unparsed string is used as alttext instead.
Test Plan: Added another table "Multi-References" to CopyPaste test. Made that table and the References table test with and without table data loaded in the browser.
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D3118
Test Plan: Added check for these values in a relevant test case.
Reviewers: paulfitz
Reviewed By: paulfitz
Differential Revision: https://phab.getgrist.com/D3117
Summary:
Adding sort options for columns.
- Sort menu has a new option "More sort options" that opens up Sort left menu
- Each sort entry has an additional menu with 3 options
-- Order by choice index (for the Choice column, orders by choice position)
-- Empty last (puts empty values last in ascending order, first in descending order)
-- Natural sort (for Text column, compares strings with numbers as numbers)
Updated also CSV/Excel export and api sorting.
Most of the changes in this diff is a sort expression refactoring. Pulling out all the methods
that works on sortExpression array into a single namespace.
Test Plan: Browser tests
Reviewers: alexmojaki
Reviewed By: alexmojaki
Subscribers: dsagal, alexmojaki
Differential Revision: https://phab.getgrist.com/D3077
Summary:
When a value $B.A is a ReferenceList, returning it in an Any column can cause
an "unmarshallable object" error, if the RecordSet happens to be storing
row_ids in the form of a nested RecordList object. This happened consistently
when $B.A started off as another type and got converted to ReferenceList.
A specific manifestation was when a reference column $B uses "A" as a display
column, and this column gets converted from Text to ReferenceList.
Test Plan: Added a test that reproduces the problem.
Reviewers: alexmojaki
Reviewed By: alexmojaki
Differential Revision: https://phab.getgrist.com/D3089
Summary: return NOW(tz=tz).date()
Test Plan: None, curious to see if this fixes test_time_defaults when run near midnight.
Reviewers: jarek
Reviewed By: jarek
Differential Revision: https://phab.getgrist.com/D3079
Summary:
Record numbers of rows, columns, cells, and bytes of marshalled data for most calls to table_data_from_db
Export new function get_table_stats in the sandbox, which gives the raw numbers and totals.
Get and log these stats in ActiveDoc right after loading tables, before Calculate, so they are logged even in case of errors.
Tweak logging about number of tables, especially number of on-demand tables, to not only show in debug logging.
Test Plan: Updated doc regression tests, that shows what the data looks like nicely.
Reviewers: dsagal, paulfitz
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D3081
Summary:
This verifies that all existing tests are capable of running under python3/gvisor, and fixes the small issues that came up. It does not yet activate python3 tests on all diffs, only diffs that specifically request them.
* Adds a suffix in test names and output directories for tests run with PYTHON_VERSION=3, so that results of the same test run with and without the flag can be aggregated cleanly.
* Adds support for checkpointing to the gvisor sandbox adapter.
* Prepares a checkpoint made after grist python code has loaded in the gvisor sandbox.
* Changes how `DOC_URL` is passed to the sandbox, since it can no longer be passed in as an environment variable when using checkpoints.
* Uses the checkpoint to speed up tests using the gvisor sandbox, otherwise a lot of tests need more time (especially on mac under docker).
* Directs jenkins to run all tests with python2 and python3 when a new file `buildtools/changelogs/python.txt` is touched (this diff counts as touching that file).
* Tweaks miscellaneous tests
- some needed fixes exposed by slightly different timing
- a small number actually give different results in py3 (removal of `u` prefixes).
- some needed a little more time
The DOC_URL change is not the ultimate solution we want for DOC_URL. Eventually it should be a variable that gets updated, like the date perhaps. This is just a small pragmatic change to preserve existing behavior.
Tests are run mindlessly as py3, and for some tests it won't change anything (e.g. if they do not use NSandbox). Tests are not run in parallel, doubling overall test time.
Checkpoints could be useful in deployment, though this diff doesn't use them there.
The application of checkpoints doesn't check for other configuration like 3-versus-5-pipe that we don't actually use.
Python2 tests run using pynbox as always for now.
The diff got sufficiently bulky that I didn't tackle running py3 on "regular" diffs in it. My preference, given that most tests don't appear to stress the python side of things, would be to make a selection of the tests that do and a few wild cards, and run those tests on both pythons rather then all of them. For diffs making a significant python change, I'd propose touching buildtools/changelogs/python.txt for full tests. But this is a conversation in progress.
A total of 6886 tests ran on this diff.
Test Plan: this is a step in preparing tests for py3 transition
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: dsagal
Differential Revision: https://phab.getgrist.com/D3066
Summary:
Finishing imports now occurs in Node instead of the
data engine, which makes it possible to import into
on-demand tables. Merging code was also refactored
and now uses a SQL query to diff source and destination
tables in order to determine what to update or add.
Also fixes a bug where incremental imports involving
Excel files with multiple sheets would fail due to the UI
not serializing merge options correctly.
Test Plan: Browser tests.
Reviewers: jarek
Reviewed By: jarek
Differential Revision: https://phab.getgrist.com/D3046
Summary:
Make _rename_cell_choice return None for unchanged values
The tests actually passs without the implementation changes, because trim_update_action removed the noop updates. So I'm not sure if this is an improvement. It certainly seems that it would be slower in cases where every record is updated, and it's hard to say if it would be better in other cases.
Test Plan:
Checked doc actions in existing test.
Also tested for invalid existing values.
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: jarek
Differential Revision: https://phab.getgrist.com/D3052
Summary:
["RenameChoices", table_id, col_id, renames]
Updates the data in a Choice/ChoiceList column to reflect the new choice names.
`renames` should be a dict of `{old_choice_name: new_choice_name}`.
This doesn't touch the choices configuration in widgetOptions, that must be done separately.
Frontend to be done in another diff.
Test Plan: Added two Python unit tests.
Reviewers: jarek
Reviewed By: jarek
Differential Revision: https://phab.getgrist.com/D3050
Summary:
Traceback is available on the Creator Panel in the formula editor. It is evaluated the same way as for normal formulas.
In case when the traceback is not available, only the error name is displayed with information that traceback is not available.
Cell with an error, when edited, shows the previous valid value that was used before the error happened (or None for new rows).
Value is stored inside the RaisedException object that is stored in a cell.
Test Plan: Created tests
Reviewers: alexmojaki
Reviewed By: alexmojaki
Subscribers: alexmojaki, dsagal
Differential Revision: https://phab.getgrist.com/D3033
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:
See https://grist.quip.com/VKd3ASF99ezD/Outgoing-Webhooks
- 2 new DocApi endpoints: _subscribe and _unsubscribe, not meant to be user friendly or publicly documented. _unsubscribe should be given the response from _subscribe in the body, e.g:
```
$ curl -X POST -H "Authorization: Bearer 8fd4dc59ecb05ab29ae5a183c03101319b8e6ca9" "http://localhost:8080/api/docs/6WYa23FqWxGNe3AR6DLjCJ/tables/Table2/_subscribe" -H "Content-type: application/json" -d '{"url": "https://webhook.site/a916b526-8afc-46e6-aa8f-a625d0d83ec3", "eventTypes": ["add"], "isReadyColumn": "C"}'
{"unsubscribeKey":"3246f158-55b5-4fc7-baa5-093b75ffa86c","triggerId":2,"webhookId":"853b4bfa-9d39-4639-aa33-7d45354903c0"}
$ curl -X POST -H "Authorization: Bearer 8fd4dc59ecb05ab29ae5a183c03101319b8e6ca9" "http://localhost:8080/api/docs/6WYa23FqWxGNe3AR6DLjCJ/tables/Table2/_unsubscribe" -H "Content-type: application/json" -d '{"unsubscribeKey":"3246f158-55b5-4fc7-baa5-093b75ffa86c","triggerId":2,"webhookId":"853b4bfa-9d39-4639-aa33-7d45354903c0"}'
{"success":true}
```
- New DB entity Secret to hold the webhook URL and unsubscribe key
- New document metatable _grist_Triggers subscribes to table changes and points to a secret to use for a webhook
- New file Triggers.ts processes action summaries and uses the two new tables to send webhooks.
- Also went on a bit of a diversion and made a typesafe subclass of TableData for metatables.
I think this is essentially good enough for a first diff, to keep the diffs manageable and to talk about the overall structure. Future diffs can add tests and more robustness using redis etc. After this diff I can also start building the Zapier integration privately.
Test Plan: Tested manually: see curl commands in summary for an example. Payloads can be seen in https://webhook.site/#!/a916b526-8afc-46e6-aa8f-a625d0d83ec3/0b9fe335-33f7-49fe-b90b-2db5ba53382d/1 . Great site for testing webhooks btw.
Reviewers: dsagal, paulfitz
Reviewed By: paulfitz
Differential Revision: https://phab.getgrist.com/D3019
Summary:
Python isdigit() returns true for unicode characters such as "²", which fail
when used as an argument to int().
Instead, be explicit about only considering characters 0-9 to be digits.
Test Plan: Added a test case which produces an error without this change.
Reviewers: alexmojaki
Reviewed By: alexmojaki
Differential Revision: https://phab.getgrist.com/D3027
Summary:
After updating the jenkins test workers, chrome and python changes resulting in a scattering of test failures.
* Clicking on an icon that has been transformed to mirror around the y axis fails via selenium. Not sure why. "Fixed" by asking the browser to do the click.
* There was a small change from python 3.9.6 to python 3.9.7 that affected completion of property attributes.
Worker updates here: https://phab.getgrist.com/D3029
Test Plan: these tests
Reviewers: alexmojaki
Reviewed By: alexmojaki
Differential Revision: https://phab.getgrist.com/D3031
Summary:
This unsets the `direct` flag for actions emitted when summary tables are updated. That means those actions will be ignored for access control purposes. So if a user has the right to change a source table, the resulting changes to the summary won't result in the overall action bundle being forbidden.
I don't think I've actually seen the use case that inspired this issue being filed. I could imagine perhaps a user forbidden from creating rows globally making permitted updates that could add rows in a summary (and it being desirable to allow that).
Test Plan: added tests
Reviewers: jarek
Reviewed By: jarek
Subscribers: dsagal, alexmojaki, jarek
Differential Revision: https://phab.getgrist.com/D3022
Summary:
The import dialog now has an option to 'Update existing records',
which when checked will allow for selection of 1 or more fields
to match source and destination tables on.
If all fields match, then the matched record in the
destination table will be merged with the incoming record
from the source table. This means the incoming values will
replace the destination table values, unless the incoming
values are blank.
Additional merge strategies are implemented in the data
engine, but the import dialog only uses one of the
strategies currently. The others can be exposed in the UI
in the future, and tweak the behavior of how source
and destination values should be merged in different contexts,
such as when blank values exist.
Test Plan: Python and browser tests.
Reviewers: paulfitz
Reviewed By: paulfitz
Subscribers: alexmojaki
Differential Revision: https://phab.getgrist.com/D3020
Summary:
The problem: For a data-cleaning column (one that depends on itself) `doBulkUpdateRecord` calls `prevent_recalc(should_prevent=False)``
which is supposed to cause it to get calculated eventually.
But before that it calls `_do_doc_action` -> `apply_doc_action` -> `_bring_lookups_up_to_date` which recalculates
a lookup column which eventually calls `_recompute_step(allow_evaluation=False)` on the data-cleaning column
which shouldn't really do anything significant but it both modifies the set `self.recompute_map[node]`
and then removes it from the map after it's empty.
The solution: when `allow_evaluation=False` and `self._prevent_recompute_map[node]` is nonempty,
ensure `self.recompute_map[node]` is not modified,
and check the map directly (instead of `dirty_rows` which can now be separate) to see if the set is empty before cleanup.
Test Plan: Added a lookup column to test_self_trigger, ensured that this caused the test to fail without the other two changes in engine.py.
Reviewers: paulfitz
Reviewed By: paulfitz
Subscribers: dsagal
Differential Revision: https://phab.getgrist.com/D3006
Summary:
Replacing a column leads to an unnecessary recalculation, and was happening on
every schema change. This is particularly noticeble for large docs, especially
for imports when each column's addition is a schema change in itself, so
recalculation of summary table groupings were happening many times.
Test Plan: Existing tests should pass. No tests yet for avoiding recalculation, but would be nice!
Reviewers: alexmojaki
Reviewed By: alexmojaki
Subscribers: paulfitz
Differential Revision: https://phab.getgrist.com/D3005
Summary:
- Grist document has a associated "locale" setting that affects how currency is formatted.
- Currency selector for number format.
Test Plan: not done
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: paulfitz
Differential Revision: https://phab.getgrist.com/D2977
Summary: Uses python unicodedata module to normalise a string and remove combining characters, leaving behind more ascii letters and fewer underscores
Test Plan: Added unit test
Reviewers: paulfitz
Reviewed By: paulfitz
Subscribers: dsagal
Differential Revision: https://phab.getgrist.com/D2994
Summary:
Our date-guessing logic analyzes text in full looking for date parts.
This diff skip all that work when text is so long that we don't need to
consider it to be a valid date.
This is a quick fix. There are probably many other cases when we don't
need to try hard to parse arbitrary text as dates.
Test Plan: Added a fixture and test case that would trigger the error without the fix.
Reviewers: paulfitz
Subscribers: paulfitz
Differential Revision: https://phab.getgrist.com/D2992
Summary: RecordSets now have new encoding and rendering analogous to Records: `['r', 'Table', [1, 2, 3]]` and `Table[[1, 2, 3]]`.
Test Plan: Added to nbrowser/TypeChange.ts.
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2987
Summary:
Adds Reference List as a widget type.
Reference List is similar to Choice List: multiple references can be added
to each cell through a similar editor, and the individual references
will always reflect their current value from the referenced table.
Test Plan: Browser tests.
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: paulfitz, jarek, alexmojaki, dsagal
Differential Revision: https://phab.getgrist.com/D2959
Summary: Just return a list from _get_col_subset, remove ColumnView class
Test Plan: none
Reviewers: dsagal, georgegevoian
Reviewed By: dsagal, georgegevoian
Subscribers: georgegevoian
Differential Revision: https://phab.getgrist.com/D2975
Summary: Updates the summary column type correctly, rebuilds the table model
Test Plan: Added a python unit test, tested manually in browser
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2973
Summary: Detached formula uses CONTAINS()
Test Plan: Added to existing unit test
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2972
Summary:
Prefix keys of `LinkingState.filterColValues` with `_contains:` when the source column is a ChoiceList or ReferenceList.
This is parsed out to make a boolean `isContainsFilter` which is kept in each value of `QueryRefs.filterTuples` (previously `filterPairs`).
Then when converting back in `convertQueryFromRefs` we construct `Query.contains: {[colId: string]: boolean}`.
Finally `getFilterFunc` uses `Query.contains` to decide what kind of filtering to do.
This is not pretty, but the existing code is already very complex and it was hard to find something that wouldn't require touching loads of code just to make things compile.
Test Plan: Added a new nbrowser test and fixture, tests that selecting a source table by summary tables grouped by a choicelist column, non-list column, and both all filter the correct data.
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2940
Summary:
Move all the plugins python code into the main folder with the core code.
Register file importing functions in the same main.py entrypoint as the data engine.
Remove options relating to different entrypoints and code directories. The only remaining plugin-specific option in NSandbox is the import directory/mount, i.e. where files to be parsed are placed.
Test Plan: this
Reviewers: paulfitz
Reviewed By: paulfitz
Subscribers: dsagal
Differential Revision: https://phab.getgrist.com/D2965
Summary: Deletes code which was previously only used by SharedSharing.ts, which was deleted in D2894
Test Plan: no
Reviewers: paulfitz
Reviewed By: paulfitz
Differential Revision: https://phab.getgrist.com/D2960
Summary:
get_cell_value wraps RaisedException with CellError to expand the error message for the user.
This is still pretty conceptual, the comments explain some things to think about, but it works and is an improvement.
Test Plan: Updated Python unit tests
Reviewers: dsagal, paulfitz
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2928
Summary:
This makes it possible to set the type of a column to ReferenceList, but the UI is terrible
ReferenceList.ts is a mishmash of ChoiceList and Reference that sort of works but something about the CSS is clearly broken
ReferenceListEditor is just a text editor, you have to type in a JSON array of row IDs. Ignore the value that's present when you start editing. I can maybe try mashing together ReferenceEditor and ChoiceListEditor but it doesn't seem wise.
I think @georgegevoian should take over here. Reviewing the diff as it is to check for obvious issues is probably good but I don't think it's worth trying to land/merge anything.
Test Plan: none
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: georgegevoian
Differential Revision: https://phab.getgrist.com/D2914
Summary: Having CONTAINS be a class is a pain, undoing that mistake now
Test Plan: none needed
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2929
Summary: Remove repl.py, REPLTab.js, some wiring code, CSS, and a test in testscript.json.
Test Plan: NA
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2923
Summary:
Added CONTAINS 'function' which can be used in lookups
Changed LookupMapColumn._row_key_map to use right=set so one row can have many keys when CONTAINS is used.
Use CONTAINS to implement group column in summary table, while helper column in source table can reference and create multiple rows in summary table, especially when summarising by ChoiceList columns.
Use itertools.product to generate all combinations of lookup keys and groupby values.
cleanup
Test Plan: Added python unit tests.
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: paulfitz, dsagal
Differential Revision: https://phab.getgrist.com/D2900
Summary:
Dealing with some things that bothered and sometimes confused me:
Make Table.Record[Set] provide the table argument automatically
Remove the classes from UserTable because they're not used anywhere and the Table/UserTable distinction is already confusing. They're not documented for users and they don't show up in autocomplete.
Remove RecordSet.Record because it was confusing me where that attribute was being set, but also this means .Record will work properly for users with columns named 'Record'.
Test Plan: existing tests
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2913
Summary:
The 'user' variable has a similar API to the one from access rules: it
contains properties about a user, such as their full name and email
address, as well as optional, user-defined attributes that are populated
via user attribute tables.
Test Plan: Python unit tests.
Reviewers: alexmojaki, paulfitz, dsagal
Reviewed By: alexmojaki, dsagal
Subscribers: paulfitz, dsagal, alexmojaki
Differential Revision: https://phab.getgrist.com/D2898
Summary:
API signature for autocomplete updated to add column ID, which is
necessary for exposing correct types for 'value'.
Test Plan: Unit tests.
Reviewers: alexmojaki
Reviewed By: alexmojaki
Subscribers: jarek, alexmojaki
Differential Revision: https://phab.getgrist.com/D2896
Summary: See title. This should improve the user experience, but more importantly it's something I've wanted several times when developing (including just now) so I've been meaning to do this.
Test Plan: Expanded existing unit tests
Reviewers: dsagal, paulfitz
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2910
Summary:
This switches to using stdin/stdout for RPC calls to the sandbox, rather than specially allocated side channels. Plain text error information remains on stderr.
The motivation for the change is to simplify use of sandboxes, some of which support extra file descriptors and some of which don't.
The new style of communication is made the default, but I'm not committed to this, just that it be easy to switch to if needed. It is possible I'll need to switch the communication method again in the near future.
One reason not to make this default would be windows support, which is likely broken since stdin/stdout are by default in text mode.
Test Plan: existing tests pass
Reviewers: dsagal, alexmojaki
Reviewed By: dsagal, alexmojaki
Differential Revision: https://phab.getgrist.com/D2897
Summary:
Add python3 suite to testrun.sh
Build virtualenv called sandbox_venv3 in build script
Move xmlrunner.py into grist folder from thirdparty, since sandbox_venv3 doesn't use thirdparty and I don't know where that file comes from - unittest-xml-reporting is different.
Test Plan: this
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2886
Summary:
Run JS with a value for SANDBOX_BUFFERS_DIR, then run test_replay in python with the same value to replay just the python code.
See test_replay.py for more info.
Test Plan:
Record some data, e.g. `SANDBOX_BUFFERS_DIR=manual npm start` or `SANDBOX_BUFFERS_DIR=server ./test/testrun.sh server`.
Then run `SANDBOX_BUFFERS_DIR=server python -m unittest test_replay` from within `core/sandbox/grist` to replay the input from the JS.
Sample of the output will look like this:
```
Checking /tmp/sandbox_buffers/server/2021-06-16T15:13:59.958Z
True
Checking /tmp/sandbox_buffers/server/2021-06-16T15:16:37.170Z
True
Checking /tmp/sandbox_buffers/server/2021-06-16T15:14:22.378Z
True
```
Reviewers: paulfitz, dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2866
Summary:
- Implement UI with "Apply to new records" and "Apply on record changes"
checkboxes, and options for selecting which changes to recalculate on.
- For consistency, always represent empty RefList as None
- Fix up generated SchemaTypes to remember that values are encoded.
Included test cases for the main planned use cases:
- Auto-filled UUID column
- Data cleaning
- NOW() formula for record's last-updated timestamp.
- Updates that depend on other columns.
Test Plan: Added a browser test.
Reviewers: jarek
Reviewed By: jarek
Subscribers: paulfitz
Differential Revision: https://phab.getgrist.com/D2885
Summary:
Trigger formulas can be calculated for new records, or for new records and
updates to certain fields, or all fields. They do not recalculate on open,
and they MAY be set directly by the user, including for data-cleaning.
- Column metadata now includes recalcWhen and recalcDeps fields.
- Trigger formulas are NOT recalculated on open or on schema changes.
- When recalcWhen is "never", formula isn't calculated even for new records.
- When recalcWhen is "allupdates", formula is calculated for new records and
any manual (non-formula) updates to the record.
- When recalcWhen is "", formula is calculated for new records, and changes to
recalcDeps fields (which may be formula fields or column itself).
- A column whose recalcDeps includes itself is a "data-cleaning" column; a
value set by the user will still trigger the formula.
- All trigger-formulas receive a "value" argument (to support the case above).
Small changes
- Update RefLists (used for recalcDeps) when target rows are deleted.
- Add RecordList.__contains__ (for `rec in refList` or `id in refList` checks)
- Clarify that Calculate action has replaced load_done() in practice,
and use it in tests too, to better match reality.
Left for later:
- UI for setting recalcWhen / recalcDeps.
- Implementation of actions such as "Recalculate for all cells".
- Allowing trigger-formulas access to the current user's info.
Test Plan: Added a comprehensive python-side test for various trigger combinations
Reviewers: paulfitz, alexmojaki
Reviewed By: paulfitz
Differential Revision: https://phab.getgrist.com/D2872
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: Convert recursion to while loop with stack of things to invalidate.
Test Plan: Loan tracker example works now
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2867
