Fix N+1 queries in equipment views, add DRF pagination#32
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_list_all: materialise DataEquipmentVariant into a dict before the loop — was calling variants.filter().first() per slot per alt. _list_single: batch-fetch DataEquipment and DataEquipmentVariant in two queries before the loop — was hitting the DB twice per slot (36 queries per request for 18 slots). Add REST_FRAMEWORK pagination (PageNumberPagination, page_size=100) to settings for the raw ModelViewSet data endpoints.
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Summary
_list_all: materialiseDataEquipmentVariantinto a dict before the loop — was callingvariants.filter().first()per slot per alt (N queries per alt × 18 slots)_list_single: batch-fetchDataEquipmentandDataEquipmentVariantin two queries upfront — was hitting the DB twice per slot (36 queries per request for 18 slots)REST_FRAMEWORKpagination config (PageNumberPagination,PAGE_SIZE=100) for the rawModelViewSetdata endpoints; customlist()overrides in profile views are unaffected