akvo / iwsims / #45

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Pull #21

coveralls-python

[#20] Fix REFRESH CONCURRENTLY inside Django test transaction

Django's TestCase wraps each test in a transaction. REFRESH MATERIALIZED
VIEW CONCURRENTLY cannot run inside a transaction block (PostgreSQL raises
InFailedSqlTransaction). The fix: check connection.in_atomic_block before
using CONCURRENTLY — if we are inside a transaction, fall back to the
blocking form automatically.

This was triggered by DataBatchApprovedTestCaseWithFileSaving which
overrides TEST_ENV=False, causing tasks.py to call
refresh_materialized_data(concurrent=True) inside a TestCase transaction.

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Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

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