---
id: task-18
title: Fix query extensions and test failures
status: Done
assignee: []
created_date: '2025-07-13'
updated_date: '2025-07-13'
labels: []
dependencies: []
---

## Description

Fix failing tests related to chained where clauses, nil value queries, and non-existent column error handling in the auxiliary table query extensions

## Acceptance Criteria

- [ ] Chained where clauses work correctly
- [ ] Nil value queries return expected results
- [ ] Non-existent column queries raise proper errors
- [ ] All tests pass
- [ ] Sorbet typechecker passes

## Implementation Plan

1. Analyze failing tests to understand root causes\n2. Fix chained where clauses by extending ActiveRecord::Relation objects\n3. Fix nil value queries by using LEFT JOIN instead of INNER JOIN\n4. Fix non-existent column error handling by forcing query execution\n5. Run full test suite to ensure no regressions\n6. Run Sorbet typechecker to ensure type safety

## Implementation Notes

Successfully fixed all three failing tests by:\n\n1. **Chained where clauses**: Extended ActiveRecord::Relation objects with auxiliary table support using dynamic modules, allowing unlimited chaining of where clauses with auxiliary columns\n\n2. **Nil value queries**: Changed from joins (INNER JOIN) to left_joins (LEFT JOIN) to properly handle cases where auxiliary records might not exist\n\n3. **Non-existent column error handling**: Added .load to force query execution when invalid columns are encountered, ensuring ActiveRecord::StatementInvalid is properly raised\n\n**Results**: All 47 tests now pass, Sorbet typechecker passes with no errors. The implementation maintains backward compatibility while adding robust support for complex query scenarios.\n\n**Files modified**: lib/has_aux_table.rb (setup_query_extensions method)
