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This patch introduces the Prefetch object which allows customizing prefetch operations. This enables things like filtering prefetched relations, calling select_related from a prefetched relation, or prefetching the same relation multiple times with different querysets. When a Prefetch instance specifies a to_attr argument, the result is stored in a list rather than a QuerySet. This has the fortunate consequence of being significantly faster. The preformance improvement is due to the fact that we save the costly creation of a QuerySet instance. Thanks @akaariai for the original patch and @bmispelon and @timgraham for the reviews. |
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| .. | ||
| class-based-views | ||
| contrib | ||
| files | ||
| forms | ||
| models | ||
| templates | ||
| clickjacking.txt | ||
| databases.txt | ||
| django-admin.txt | ||
| exceptions.txt | ||
| index.txt | ||
| middleware.txt | ||
| request-response.txt | ||
| settings.txt | ||
| signals.txt | ||
| template-response.txt | ||
| unicode.txt | ||
| urlresolvers.txt | ||
| urls.txt | ||
| utils.txt | ||
| validators.txt | ||
| views.txt | ||