Add file shares to Showcase source view

runtime/nextcloud/update-showcase-source-view.sql

@@ -0,0 +1,17 @@
+CREATE OR REPLACE VIEW piwigo_showcase_sources AS
+SELECT
+  s.id AS share_id,
+  s.item_type,
+  s.file_target AS display_name,
+  st.id AS storage_id,
+  f.path AS source_path,
+  s.accepted,
+  s.permissions
+FROM oc_share AS s
+JOIN oc_filecache AS f ON f.fileid = s.file_source
+JOIN oc_storages AS st ON st.numeric_id = f.storage
+WHERE lower(s.share_with) = 'showcase'
+  AND s.item_type IN ('folder', 'file')
+  AND s.accepted = 1;
+
+GRANT SELECT ON piwigo_showcase_sources TO piwigo_reader;