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Code Issues Releases 18 Activity

library_save: ensure categories before template render

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save_post_file is now async and gains an optional
category_fetcher parameter. When the template uses any category
token (%artist%, %character%, %copyright%, %general%, %meta%,
%species%) AND the post's tag_categories is empty AND a fetcher
is available, it awaits ensure_categories(post) before calling
render_filename_template. This guarantees the filename is
correct even when saving a post the user hasn't clicked
(bypassing the info panel's on-display trigger).

When the template uses only non-category tokens (%id%, %md5%,
%score%, %rating%, %ext%) or is empty, the ensure check is
skipped entirely — no HTTP overhead for the common case.

Every existing caller already runs from _run_async closures,
so the sync→async signature change is mechanical. The callers
are updated in the next two commits to pass category_fetcher.
This commit is contained in:
pax 2026-04-09 19:18:13 -05:00
parent fa1222a774
commit 8f8db62a5a
1 changed files with 17 additions and 1 deletions
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18
booru_viewer/core/library_save.py
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@ -26,13 +26,17 @@ if TYPE_CHECKING:
from .api.base import Post
def save_post_file(
_CATEGORY_TOKENS = {"%artist%", "%character%", "%copyright%", "%general%", "%meta%", "%species%"}
async def save_post_file(
src: Path,
post: "Post",
dest_dir: Path,
db: Database,
in_flight: set[str] | None = None,
explicit_name: str | None = None,
category_fetcher=None,
) -> Path:
"""Copy a Post's already-cached media file into `dest_dir`.
@ -95,6 +99,18 @@ def save_post_file(
basename = explicit_name
else:
template = db.get_setting("library_filename_template")
# If the template uses category tokens and the post has no
# categories yet, fetch them synchronously before rendering.
# This guarantees the filename is correct even when saving
# a post the user hasn't clicked (no prior ensure from the
# info panel path).
if (
category_fetcher is not None
and not post.tag_categories
and template
and any(tok in template for tok in _CATEGORY_TOKENS)
):
await category_fetcher.ensure_categories(post)
basename = render_filename_template(template, post, src.suffix)
in_flight_set: set[str] = in_flight if in_flight is not None else set()