Fix TemplateSyntaxError on publisher detail page - #600
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Annotate imprints/universes querysets with series_count/issue_count in PublisherDetail and its HTMX load-more endpoints. The templates '{% blocktrans count %} tags reference these fields, but the querysets were unannotated, causing a TemplateSyntaxError whenever a publisher had imprints or universes (e.g. /publisher/idw-publishing/).
bpepple
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Aug 16, 2026
Coalesce the imprint series_count/universe issue_count subqueries to 0. A correlated Subquery returns NULL (not 0) when an imprint has no series or a universe has no issues, which still tripped the blocktrans counter TemplateSyntaxError the prior fix in #600 didn't cover (e.g. dc-comics, which has several empty imprints/universes).
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Summary
PublisherDetail.get_context_data(and thePublisherImprintsLoadMore/PublisherUniversesLoadMoreHTMX endpoints) fetchedpublisher.imprints/publisher.universeswithout annotatingseries_count/issue_countpublisher_detail.htmlreferences those fields inside{% blocktrans count counter=... %}tags, so the counter resolved to a non-number and Django raisedTemplateSyntaxError: 'counter' argument to 'blocktrans' tag must be a number/publisher/idw-publishing/500 in production logs)series_count/issue_countsubqueries, mirroring the pattern already used inimprint.py/universe.py