v2.0.3 — shared slugs on the default `post` type

Bug fix release. Shared slugs previously worked on custom post types but silently did nothing on the default post type.

The bug

PLL_Shared_Slugs::should_constrain_flat() read the queried post type as:

$pt = $qv["post_type"] ?? "post";

WP_Query fills post_type with an empty string (not null) before posts_where fires, so ?? never fell back. The guard then tested pll_is_translated_post_type("") — false — and skipped the language constraint.

That affected exactly one post type: post, the only one whose rewrite rule omits post_type from the query. Custom post types carry an explicit post_type and were never affected.

Impact

With two translations sharing a post slug, both matched the by-name query, so:

• a single-post template looped over every translation, rendering each language copy one after another on the same page, and
• the default-language URL 301-redirected to whichever translation sorted first.

Fix

Fall back on emptiness rather than nullness. Arrays and "any" still bail out via the existing is_string / is_translated_type checks, so all conservative cases are unchanged.

No settings or data changes; update and the fix applies.

v2.0.2 — French translation

Adds French (fr_FR) translation of the plugin's admin UI. No routing changes.

v2.0.1 — full i18n + Spanish

Localization release.

• Fixes a gettext extraction defect: two settings strings were passed to translation functions via variables (not extractable). Now every user-facing string is a literal at the call site.
• Adds languages/: the .pot template plus a complete Spanish (es_ES) .po/.mo.
• The routing engine remains locale-free — this localizes only the plugin's own admin UI.

No behavior change to slug/base routing. Self-flush still applies on update.

v2.0.0 — Polylang Slug Toolkit

Rebrand of Shared Slugs for Polylang into a module-based toolkit.

Modules

• Shared slugs (existing) — translations share one slug across languages.
• Translated bases (new) — config-driven per-language archive/base
  translation, e.g. /products/ (default) and /es/productos/. Map via the
  pll_slug_toolkit_base_map filter.

Notes

• Engine is fully generic; per-site base maps live in the theme/mu-plugin.
• Rewrite rules self-flush on any rule-set or version change — no manual
  Permalinks re-save, including on production.
• Guarded per-module loading: each module loads only when enabled.

Migration from v1.x (folder/slug rename)

Folder/slug change polylang-shared-slugs → polylang-slug-toolkit. The
shared-slugs option name and the old GitHub token constant/filter are preserved.
Do a one-time manual folder swap on existing installs (PUC can't rename folders);
do not use the in-dashboard "update" on the old plugin for this transition.

v1.0.0

Initial public release.

Shared slugs across Polylang languages for Polylang Free — per-language slug uniqueness on save, plus language-aware query resolution for flat and hierarchical post types. Opt-in (Settings → Reading) and self-disables unless Polylang sets the language from the URL (force_lang).

Independent, unofficial add-on. Not affiliated with or endorsed by Polylang / WP Syntex.