Claude/review pagination bugs 011 c uf c dfh8bqj sdy mj cyeov #16
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Documented 6 bugs found during code review: - Critical: Division by zero with per_page=0 - Critical: Negative per_page values cause undefined behavior - Medium: iter_pages() left_edge calculation incorrect with custom first_page_index - Medium: iter_pages() right_edge calculation incorrect with custom first_page_index - Low: Useless assert NotImplementedError in KeysetPagination.prev() - Low: prev_num/next_num don't check boundaries Each bug includes detailed description, reproduction steps, and proposed fixes.
Fixes Bug #4 and Bug #5 from BUG_REPORT.md Changes: - Add validation in all pagination classes to reject per_page <= 0 - Raises ValueError with clear message when per_page is invalid - Prevents ZeroDivisionError crashes when per_page=0 - Prevents undefined behavior with negative per_page values Modified files: - flask_mongoengine/pagination/basic_pagination.py - flask_mongoengine/pagination/keyset_pagination.py - flask_mongoengine/pagination/list_field_pagination.py Added comprehensive test coverage: - tests/test_pagination.py: test_per_page_validation() - Tests per_page=0 for all pagination classes - Tests negative per_page for all pagination classes - Verifies correct ValueError is raised with proper message
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