feat: Landing page can be localized

visualize-admin · Dec 1, 2023 · 4d17f38 · 4d17f38
1 parent 08fbffb
commit 4d17f38
Show file tree

Hide file tree

Showing 3 changed files with 17 additions and 6 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -9,7 +9,8 @@ You can also check the [release page](https://github.com/visualize-admin/visuali
 
 ## Unreleased
 
-Nothing yet.
+- Features
+  - Localized cube landing pages are now supported (dcat:landingPage) 🌎
 
 # [3.24.2] - 2023-11-28
 

diff --git a/app/rdf/query-cube-metadata.ts b/app/rdf/query-cube-metadata.ts
@@ -140,7 +140,10 @@ export const getCubeMetadata = async (
       ?contactPoint ${ns.vcard.hasEmail} ?contactPointEmail .
     }
     OPTIONAL { ?iri ${ns.dcterms.publisher} ?publisher . }
-    OPTIONAL { ?iri ${ns.dcat.landingPage} ?landingPage . }
+    ${buildLocalizedSubQuery("iri", "dcat:landingPage", "landingPage", {
+      locale,
+      fallbackToNonLocalized: true,
+    })}
     OPTIONAL { ?iri ${ns.schema.expires} ?expires . }
     OPTIONAL { ?iri ${ns.schema.workExample} ?workExample . }
   `.GROUP().BY`?iri`.THEN.BY`?identifier`.THEN.BY`?title`.THEN.BY`?description`

diff --git a/app/rdf/query-utils.ts b/app/rdf/query-utils.ts
@@ -10,7 +10,13 @@ export const buildLocalizedSubQuery = (
   s: string,
   p: string,
   o: string,
-  { locale }: { locale: string }
+  {
+    locale,
+    fallbackToNonLocalized,
+  }: {
+    locale: string;
+    fallbackToNonLocalized?: boolean;
+  }
 ) => {
   // Include the empty locale as well.
   const locales = getOrderedLocales(locale).concat("");
@@ -23,9 +29,10 @@ export const buildLocalizedSubQuery = (
         }`
     )
     .join("\n")}
-      BIND(COALESCE(${locales
-        .map((locale) => `?${o}_${locale}`)
-        .join(", ")}) AS ?${o})
+    ${fallbackToNonLocalized ? `OPTIONAL { ?${s} ${p} ?${o}_raw }` : ""}
+      BIND(COALESCE(${locales.map((locale) => `?${o}_${locale}`).join(", ")} ${
+    fallbackToNonLocalized ? `, ?${o}_raw` : ``
+  }) AS ?${o})
   `;
 };