8000 Bug with inline model simultaneous delete and modification · Issue #237 · django-ordered-model/django-ordered-model · GitHub
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Bug with inline model simultaneous delete and modification #237

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shuckc opened this issue Apr 6, 2021 · 0 comments
Open

Bug with inline model simultaneous delete and modification #237

shuckc opened this issue Apr 6, 2021 · 0 comments

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@shuckc
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shuckc commented Apr 6, 2021 •
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Many to one model, using admin order from 3.4.1, no multi-user access.
Create 3 items and reload main model (I have put the expected ordering in the desc column for illustration).
image

Check box to Delete first item
Apply a modification to one of the remaining items.

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Click "Save and Continue Editing" the form. Resulted in a corrupt ordering (order column: 1, 1):

image

The up shuffle to reset order fields for the delete seemed to work for all but the modified item who's order was seemingly persisted to the original value as part of the save. This left a duplicate 1 item and a gap for zero.

It seems like our delete code interacts badly with simultaneous save? I'll try and put this into a unit test.
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