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Make sure if a DB Session got created for a request, it stays unique per request #19513

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6543 opened this issue Apr 26, 2022 · 0 comments · Fixed by #20031 or #21756
Closed
1 of 3 tasks

Make sure if a DB Session got created for a request, it stays unique per request #19513

6543 opened this issue Apr 26, 2022 · 0 comments · Fixed by #20031 or #21756
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type/summary This issue aggregates a bunch of other issues
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1.19.0

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6543 commented Apr 26, 2022 •
edited by lunny
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to prevent deadlocks, etc...:

  • use context for all function calling package model and model itself
  • add func that can extract an open session from context if there is one or open a new one
  • be able to make sure, if db.TxContext() was already opened, a function within the stack does not open a second one again
@6543 6543 added type/feature Completely new functionality. Can only be merged if feature freeze is not active. type/summary This issue aggregates a bunch of other issues labels Apr 26, 2022
@6543 6543 added this to the 1.17.0 milestone Apr 26, 2022
@lunny lunny modified the milestones: 1.17.0, 1.18.0 May 16, 2022
@lunny lunny mentioned this issue Jun 19, 2022
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@6543 6543 reopened this Jun 20, 2022
@lunny lunny modified the milestones: 1.18.0, 1.19.0 Oct 17, 2022
@lunny lunny mentioned this issue Nov 10, 2022
Merged
@lunny lunny removed the type/feature Completely new functionality. Can only be merged if feature freeze is not active. label Nov 10, 2022
6543 added a commit that referenced this issue Nov 12, 2022
@lunny @delvh @6543
Allow detect whether it's in a database transaction for a context.Con…
34283a7 
…text (#21756)

Fix #19513

This PR introduce a new db method `InTransaction(context.Context)`,
and also builtin check on `db.TxContext` and `db.WithTx`.
There is also a new method `db.AutoTx` has been introduced but could be used by other PRs.

`WithTx` will always open a new transaction, if a transaction exist in context, return an error.
`AutoTx` will try to open a new transaction if no transaction exist in context.
That means it will always enter a transaction if there is no error.

Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: 6543 <6543@obermui.de>
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@lunny @6543