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Resync media sidecars after post deletion.

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This commit is contained in:
Chili Palmer
2026-07-21 22:38:53 +02:00
parent 53ada2c705
commit 1cdc86b9cc
5 changed files with 122 additions and 32 deletions
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2
README.md
View File

@@ -11,7 +11,7 @@ The project is under active development. Core blogging workflows are broadly ava
- Media import, thumbnails, metadata translations, filters, validation, post assignment, and sequential drag-and-drop insertion into post editors.
- WordPress WXR migration with saved analyses, HTML-to-Markdown and shortcode conversion, conflict/taxonomy review, recoverable 500-item execution batches, media-parent linking, progress reporting, and optional AI-assisted taxonomy mapping.
- Post, Liquid template, and Lua script editing with dedicated syntax highlighting and explicit syntax-check feedback, including publish-time enforcement of the bDS2 Liquid tag/filter/operator subset, using a custom Ropey/Syntect/Cosmic Text editor and the documented, bDS2-signature-compatible project-scoped [`bds` host API](docs/scripting/API_REFERENCE.md) across utilities, rendered macros, and Blogmark transforms, including airplane-gated Git sync.
- SQLite and filesystem persistence with frontmatter, sidecars, rebuild, metadata diff/repair, stale post-path cleanup on republish, bDS2-compatible checksums and NFD slug generation, and FTS5 search.
- SQLite and filesystem persistence with frontmatter, relationship-safe media sidecars, rebuild, metadata diff/repair, stale post-path cleanup on republish, bDS2-compatible checksums and NFD slug generation, and FTS5 search.
- Optional on-device multilingual semantic search and similar-post tag suggestions backed by a persistent USearch index, plus always-available partial-name tag autocomplete and duplicate-post review in the desktop workspace.
- Read-only in-app browsers in the Help menu for the bundled global `DOCUMENTATION.md`, the generated Lua API reference with public types and runnable examples, the [CLI/server/TUI documentation](CLI.md), and the [MCP server documentation](MCP.md), with safe GFM rendering and confirmed external links.
- A localized OPML menu editor manages pages, submenus, and category archives with protected Home ordering, keyboard-accessible tree controls, drag-and-drop, and bDS2-compatible persistence.

2
crates/bds-core/src/db/queries/post_media.rs
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@@ -37,7 +37,7 @@ pub fn list_post_media_by_post(conn: &DbConnection, post_id: &str) -> QueryResul
conn.with(|c| {
post_media::table
.filter(post_media::post_id.eq(post_id))
.order(post_media::sort_order)
.order((post_media::sort_order.asc(), post_media::media_id.asc()))
.select(PostMedia::as_select())
.load(c)
})

27
crates/bds-core/src/engine/media.rs
View File

@@ -338,12 +338,7 @@ pub fn update_media(
media.updated_at = now_unix_ms();
qm::update_media(conn, &media)?;
// Rewrite sidecar (need linked_post_ids from post_media table)
let linked = qpm::list_post_media_by_media(conn, media_id).unwrap_or_default();
let linked_post_ids: Vec<String> = linked.iter().map(|pm| pm.post_id.clone()).collect();
let sidecar = MediaSidecar::from_media(&media, &linked_post_ids);
let abs_sidecar = data_dir.join(&media.sidecar_path);
atomic_write_str(&abs_sidecar, &sidecar.to_string())?;
sync_media_sidecar(conn, data_dir, media_id)?;
// Re-index FTS
fts_index_media(conn, &media)?;
@@ -353,6 +348,21 @@ pub fn update_media(
Ok(media)
}
/// Rewrite a media item's canonical sidecar from its current database state.
pub fn sync_media_sidecar(conn: &Connection, data_dir: &Path, media_id: &str) -> EngineResult<()> {
let media = qm::get_media_by_id(conn, media_id).map_err(|error| match error {
diesel::result::Error::NotFound => EngineError::NotFound(format!("media {media_id}")),
error => EngineError::Db(error),
})?;
let linked_post_ids = qpm::list_post_media_by_media(conn, media_id)?
.into_iter()
.map(|link| link.post_id)
.collect::<Vec<_>>();
let sidecar = MediaSidecar::from_media(&media, &linked_post_ids);
atomic_write_str(&data_dir.join(&media.sidecar_path), &sidecar.to_string())?;
Ok(())
}
/// Replace a media item's binary while preserving its identity, public path,
/// metadata, translations, and post links. Returns `None` when the new file is
/// byte-for-byte identical to the stored binary.
@@ -432,10 +442,7 @@ pub fn replace_media_file(
let apply_result = (|| -> EngineResult<()> {
conn.begin_savepoint()?;
qm::update_media(conn, &media)?;
let linked = qpm::list_post_media_by_media(conn, media_id).unwrap_or_default();
let linked_post_ids: Vec<String> = linked.iter().map(|item| item.post_id.clone()).collect();
let sidecar = MediaSidecar::from_media(&media, &linked_post_ids);
atomic_write_str(&data_dir.join(&media.sidecar_path), &sidecar.to_string())?;
sync_media_sidecar(conn, data_dir, media_id)?;
fts_index_media(conn, &media)?;
for staged in &staged_paths {

99
crates/bds-core/src/engine/post.rs
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@@ -545,6 +545,10 @@ pub fn discard_post_draft(conn: &Connection, data_dir: &Path, post_id: &str) ->
/// Delete a post and all related data.
pub fn delete_post(conn: &Connection, data_dir: &Path, post_id: &str) -> EngineResult<()> {
let post = qp::get_post_by_id(conn, post_id)?;
let linked_media_ids = crate::db::queries::post_media::list_post_media_by_post(conn, post_id)?
.into_iter()
.map(|link| link.media_id)
.collect::<Vec<_>>();
// Delete .md file if exists
if !post.file_path.is_empty() {
@@ -581,6 +585,13 @@ pub fn delete_post(conn: &Connection, data_dir: &Path, post_id: &str) -> EngineR
// Delete post from DB
qp::delete_post(conn, post_id)?;
for media_id in linked_media_ids {
match crate::engine::media::sync_media_sidecar(conn, data_dir, &media_id) {
Ok(()) | Err(EngineError::NotFound(_)) => {}
Err(error) => return Err(error),
}
}
crate::engine::embedding::remove_post_best_effort(conn, data_dir, &post.project_id, post_id);
emit_post(&post, NotificationAction::Deleted);
@@ -2262,6 +2273,94 @@ mod tests {
assert!(!post_file.exists());
}
#[test]
fn delete_post_removes_post_from_linked_media_sidecars() {
let (db, dir) = setup();
let post = create_post(
db.conn(),
dir.path(),
"p1",
"Delete Linked Post",
Some("body"),
vec![],
vec![],
None,
None,
None,
)
.unwrap();
publish_post(db.conn(), dir.path(), &post.id).unwrap();
let surviving_post = create_post(
db.conn(),
dir.path(),
"p1",
"Keep Linked Post",
Some("body"),
vec![],
vec![],
None,
None,
None,
)
.unwrap();
let insert_media = |id: &str| {
let mut media = crate::db::queries::media::make_test_media(id, "p1");
media.file_path = format!("media/{id}.jpg");
media.sidecar_path = format!("media/{id}.jpg.meta");
crate::db::queries::media::insert_media(db.conn(), &media).unwrap();
let sidecar_path = dir.path().join(&media.sidecar_path);
fs::create_dir_all(sidecar_path.parent().unwrap()).unwrap();
fs::write(
&sidecar_path,
crate::util::sidecar::MediaSidecar::from_media(&media, &[]).to_string(),
)
.unwrap();
(media, sidecar_path)
};
let (first_media, first_sidecar_path) = insert_media("media1");
let (second_media, second_sidecar_path) = insert_media("media2");
crate::engine::post_media::link_media_to_post(
db.conn(),
dir.path(),
"p1",
&post.id,
&first_media.id,
0,
)
.unwrap();
crate::engine::post_media::link_media_to_post(
db.conn(),
dir.path(),
"p1",
&surviving_post.id,
&first_media.id,
0,
)
.unwrap();
crate::engine::post_media::link_media_to_post(
db.conn(),
dir.path(),
"p1",
&post.id,
&second_media.id,
1,
)
.unwrap();
delete_post(db.conn(), dir.path(), &post.id).unwrap();
let first_sidecar =
crate::util::sidecar::read_sidecar(&fs::read_to_string(&first_sidecar_path).unwrap())
.unwrap();
assert_eq!(first_sidecar.linked_post_ids, vec![surviving_post.id]);
let second_sidecar =
crate::util::sidecar::read_sidecar(&fs::read_to_string(&second_sidecar_path).unwrap())
.unwrap();
assert!(second_sidecar.linked_post_ids.is_empty());
}
#[test]
fn upsert_translation_create_and_update() {
let (db, dir) = setup();

24
crates/bds-core/src/engine/post_media.rs
View File

@@ -8,8 +8,7 @@ use crate::db::queries::post as qp;
use crate::db::queries::post_media as qpm;
use crate::engine::EngineResult;
use crate::model::{Media, Post, PostMedia};
use crate::util::sidecar::MediaSidecar;
use crate::util::{atomic_write_str, now_unix_ms};
use crate::util::now_unix_ms;
/// Link a media item to a post and sync the media sidecar.
pub fn link_media_to_post(
@@ -31,7 +30,7 @@ pub fn link_media_to_post(
created_at: now,
};
qpm::link_media(conn, &pm)?;
sync_sidecar_linked_post_ids(conn, data_dir, media_id)?;
crate::engine::media::sync_media_sidecar(conn, data_dir, media_id)?;
Ok(pm)
}
@@ -43,7 +42,7 @@ pub fn unlink_media_from_post(
media_id: &str,
) -> EngineResult<()> {
qpm::unlink_media(conn, post_id, media_id)?;
sync_sidecar_linked_post_ids(conn, data_dir, media_id)?;
crate::engine::media::sync_media_sidecar(conn, data_dir, media_id)?;
Ok(())
}
@@ -84,22 +83,6 @@ pub fn list_posts_for_media(conn: &Connection, media_id: &str) -> EngineResult<V
Ok(posts)
}
/// Rebuild the media sidecar file so that `linkedPostIds` reflects the current
/// set of posts linked to this media item.
fn sync_sidecar_linked_post_ids(
conn: &Connection,
data_dir: &Path,
media_id: &str,
) -> EngineResult<()> {
let links = qpm::list_post_media_by_media(conn, media_id)?;
let post_ids: Vec<String> = links.iter().map(|pm| pm.post_id.clone()).collect();
let media = qm::get_media_by_id(conn, media_id)?;
let sidecar = MediaSidecar::from_media(&media, &post_ids);
let abs_path = data_dir.join(&media.sidecar_path);
atomic_write_str(&abs_path, &sidecar.to_string())?;
Ok(())
}
#[cfg(test)]
mod tests {
use super::*;
@@ -112,6 +95,7 @@ mod tests {
use crate::db::queries::post::{insert_post, make_test_post};
use crate::db::queries::post_media::list_post_media_by_post;
use crate::db::queries::project::{insert_project, make_test_project};
use crate::util::sidecar::MediaSidecar;
use crate::util::sidecar::read_sidecar;
fn setup() -> (Database, TempDir) {