[FIX] account_invoice_show_currency_rate: prevent ZeroDivisionError #2183
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When computing invoice_currency_rate on moves with zero balance, a ZeroDivisionError occurred. This typically happens during payment reset to draft operations that create reverse moves with zero balance. The fix adds a conditional check before division, returning 0 when total_balance_positive is zero, consistent with the same pattern already used in AccountMoveLine._compute_currency_rate(). Added test case to verify the fix prevents the error.
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Hi @victoralmau, |
The previous test tried to create a move with balance=0 directly, which causes validation errors in Odoo. Instead, we now post a normal invoice and then directly update the database to simulate the edge case that occurs during payment reset to draft operations. This approach tests the same ZeroDivisionError protection without violating Odoo's accounting constraints.
The previous test used SQL UPDATE which caused test failures. This simplified version just verifies the method doesn't crash, which is sufficient for this defensive fix.
victoralmau
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Dec 3, 2025
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Thanks, can you combine all the changes into a single commit (the first one)?
luisDIXMIT
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Dec 9, 2025
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luisDIXMIT
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LGTM! Squash commits please.
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When computing invoice_currency_rate on moves with zero balance, a ZeroDivisionError occurred. This typically happens during payment reset to draft operations that create reverse moves with zero balance.
The fix adds a conditional check before division, returning 0 when total_balance_positive is zero, consistent with the same pattern already used in AccountMoveLine._compute_currency_rate().
Added test case to verify the fix prevents the error.