Silence inserts to the job table in JobQueueDB

Why:
* The JobQueueDB class is the default method used to queue jobs
  in MediaWiki and uses the job table to store queued jobs.
* To insert a job into the queue the class needs to perform writes
  to the job table, which is done when a transaction is about to
  commit or there is no transaction active.
* Therefore, when a job is inserted to the queue and the job
  queue uses the JobQueueDB class, it causes a write either
  immediately or soon after the call.
* This means that on GET requests, the write violates the
  TransactionProfiler expectations.
* There is nothing that we can do here to avoid the writes on
  GET requests, because some code needs to ensure the job is
  inserted before sending a response. Therefore, we should
  silence the warnings regarding performing writes.

What:
* Wrap calls to get a primary DB and inserting to the primary DB
  in a scope which silences the TransactionProfiler warnings
  related to using a primary DB connection.
* Create tests for JobQueueDB so that the code being added is
  covered by tests.

Bug: T379766
Change-Id: Ibd894ab0b99398429f3d8e9849fc0608f774e6cf

0 files changed, 0 insertions, 0 deletions