FieldValue struct had no json tags, so Go marshaled fields as uppercase
(Value, Count, Score) but frontend expected lowercase (value, count).
This caused all autocomplete dropdowns (tags, author, series, language)
to silently fail — tagSuggestions[].value was undefined, crashing
toLowerCase() calls and producing empty dropdowns.
Replace direct error equality checks (err == pgx.ErrNoRows, err != http.ErrServerClosed)
with the idiomatic errors.Is() function throughout handlers, services, middleware, and app
startup. This correctly handles wrapped error chains.
Also replace a raw type assertion (*HTTPError) with errors.AsType[*HTTPError]() in the
error handler middleware for consistency.
Additionally, rename shadowed variables for clarity:
- sidecar.go: config -> sidecarConfig, systemConfig (shadowed package-level vars)
- media_scanner.go: uuid -> uuidString (shadowed the uuid package import)
Updated the backend services and handlers to properly detect and pass
the has_cover parameter's validity state to the database layer.
Changes:
- services/search.go: Changed HasCover type from bool to pgtype.Bool
to support 3-state logic (NULL, TRUE, FALSE)
- handlers/media.go: Fixed 3-state detection by checking if has_cover
exists in query params before setting Valid flag
- router/search.go: Fixed 3-state detection to match media.go logic
- router/frontend.go: Use pgtype.Bool{Valid: false} for SSR initial
load to ensure no filtering occurs on first page load
The key fix is detecting whether the has_cover parameter was actually
sent in the request:
- Parameter not sent → pgtype.Bool{Bool: false, Valid: false}
- Parameter sent as "true" → pgtype.Bool{Bool: true, Valid: true}
- Parameter sent as "false" → pgtype.Bool{Bool: false, Valid: true}
Previously, media.go was hardcoding Valid: true, which meant it was
always filtering by has_cover=false (only books without covers) when
the parameter wasn't sent, causing searches to incorrectly return
0 results for queries like "1984".
This ensures consistency between the JSON API endpoint (media.go) and
the HTML endpoint (search.go), and fixes the critical bug where SSR
was returning 0 books on initial page load.
Add shared search method that returns results with count. This method will be used by both JSON API endpoints and HTML rendering for HTMX, avoiding duplicate business logic.
- Extracts common search logic into reusable service method
- Returns search results with total count for pagination
- Follows DRY principle by eliminating duplicated search code
Improve media item search functionality with two key enhancements:
1. Date-prioritized year filtering:
- Prioritize date_published over copyright_year for year range queries
- Fall back to copyright_year when date_published is NULL
- Extract year from date_published timestamp for comparison
2. True exact search matching:
- Replace ILIKE pattern matching with exact equality for quoted queries
- Use search_query directly instead of wildcard pattern for exact matches
- Remove SearchPattern parameter and related wildcard logic
- Add COALESCE handling for author/series NULL values in exact matches
These changes make year filtering more accurate with published dates
and provide genuine exact matching when users wrap queries in quotes.
Refs internal/database/queries/queries.sql:475, internal/services/search.go:62
- Add TagsFilter string to SearchParams struct
- Update dbParams building to include tags_filter
- Add tags case to SearchFieldValues service for autocomplete
- Handle SearchTagsValues query results
Enables the backend service layer to process tag filtering requests
and provide autocomplete suggestions for tag values.
Relates to IMPLEMENTATION_TAGS_FILTER.md Phase 2
Add comment to document that filter parameters use pgtype.Text
with explicit Valid=true flag to ensure proper SQL parameter handling.
This clarifies the intent behind the parameter building logic.
Improves code documentation for future maintenance.
Updates SearchMediaItemsUnified to conditionally set LibraryID parameter
only when it's valid. Previously, the code always set LibraryID in the
dbParams struct, which caused pgx to pass a zero UUID instead of NULL
to PostgreSQL.
New behavior:
- Only sets dbParams.LibraryID when params.LibraryID.Valid is true
- When library_id is empty, LibraryID is omitted from the struct
- Go's zero value + pgx's "field not set" detection = NULL in SQL
Also fixes type mismatches in SearchFieldValues method where
SearchQuery parameter needed explicit pgtype.Text wrapping with
Valid=true flag for proper nullable text handling.
This ensures that omitting the library_id query parameter results in
searching across all libraries, not filtering by zero UUID.
- Create SearchService with SearchMediaItemsUnified method
- Add SearchFieldValues method for autocomplete dropdown population
- Add parseSearchQuery helper for quote detection (exact vs fuzzy search)
- Move all business logic from handler to service layer
- Follow established service pattern (FiltersService, CollectionService)
- Service created inside handler constructor, not in main.go
- SearchParams struct supports all filter types + sort parameter
- FieldSearchParams struct for field-specific autocomplete queries
- Returns FieldValue results with count and similarity scores
This provides a clean service layer abstraction for search operations.
Create new SearchService to encapsulate all search business logic:
Features:
- Unified search combining text search with filters
- Fuzzy matching using pg_trgm word_similarity (threshold: 0.3)
- Exact search when query is wrapped in quotes
- Field-specific autocomplete for dropdowns (author, genre, series, language)
- Proper pagination with configurable limit/offset
Implementation details:
- SearchMediaItems: Routes to SearchMediaItemsUnified query
* Detects exact search by checking for quotes in query
* Builds search pattern for ILIKE matching (%term%)
* Converts string filters to pgtype.Text with proper Valid flags
- SearchFieldValues: Routes to appropriate field-specific query
* Uses switch statement to call correct query based on field_type
* Returns []FieldValue with value, count, and similarity score
* Handles all 4 field types: author, genre, series, language
Design pattern: Service layer separates business logic from handlers,
following project's established architecture (FiltersService, CollectionService).
john-okeefe