Add doi to publication page and untyped-item page

Fall back to 'hasversion' if necessary

Author: strawburster

src/app/item-page/simple/item-types/publication/publication.component.html

@@ -53,6 +53,11 @@
       [fields]="['dc.publisher']"
       [label]="'publication.page.publisher'">
     </ds-generic-item-page-field>
+    <ds-generic-item-page-field [item]="object"
+      [fields]="['dc.identifier.doi', 'dc.relation.hasversion']"
+      [label]="'publication.page.doi'"
+      urlRegex="^https?://">
+    </ds-generic-item-page-field>
   </div>
   <div class="col-12 col-md-7">
     <ds-related-items

src/app/item-page/simple/item-types/untyped-item/untyped-item.component.html

@@ -54,6 +54,11 @@
       [fields]="['dc.publisher']"
       [label]="'item.page.publisher'">
     </ds-generic-item-page-field>
+    <ds-generic-item-page-field [item]="object"
+      [fields]="['dc.identifier.doi', 'dc.relation.hasversion']"
+      [label]="'item.page.doi'"
+      urlRegex="^https?://">
+    </ds-generic-item-page-field>
   </div>
   <div class="col-12 col-md-6">
     <ds-item-page-abstract-field [item]="object"></ds-item-page-abstract-field>

src/assets/i18n/en.json5

@@ -2905,6 +2905,8 @@
 
   "item.page.dcterms.spatial": "Geospatial point",
 
+  "item.page.doi": "DOI",
+
   "item.search.results.head": "Item Search Results",
 
   "item.search.title": "Item Search",
@@ -4277,6 +4279,8 @@
 
   "publication.page.volume-title": "Volume Title",
 
+  "publication.page.doi": "DOI",
+
   "publication.search.results.head": "Publication Search Results",
 
   "publication-relationships.search.results.head": "Publication Search Results",