Convert the document version list view to item view mode.

Add document version preview and thumbnail widgets.
Update the new version upload event have the version
as the target and the document as the action object.

Backported from the development branch.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/documents/apps.py

@@ -62,8 +62,10 @@ from .links import (
     link_document_type_filename_list, link_document_type_list,
     link_document_type_setup, link_document_update_page_count,
     link_document_version_download, link_document_version_list,
-    link_document_version_revert, link_duplicated_document_list,
-    link_duplicated_document_scan, link_trash_can_empty
+    link_document_version_return_document, link_document_version_return_list,
+    link_document_version_revert, link_document_version_view,
+    link_duplicated_document_list, link_duplicated_document_scan,
+    link_trash_can_empty
 )
 from .literals import (
     CHECK_DELETE_PERIOD_INTERVAL, CHECK_TRASH_PERIOD_INTERVAL,
@@ -89,7 +91,10 @@ from .statistics import (
     new_document_versions_per_month, total_document_per_month,
     total_document_page_per_month, total_document_version_per_month
 )
-from .widgets import DocumentThumbnailWidget, DocumentPageThumbnailWidget
+from .widgets import (
+    DocumentThumbnailWidget, DocumentPageThumbnailWidget,
+    DocumentVersionThumbnailWidget
+)
 
 
 class DocumentsApp(MayanAppConfig):
@@ -176,9 +181,11 @@ class DocumentsApp(MayanAppConfig):
         )
 
         # Document and document page thumbnail widget
-        document_thumbnail_widget = DocumentThumbnailWidget()
         document_page_thumbnail_widget = DocumentPageThumbnailWidget()
+        document_thumbnail_widget = DocumentThumbnailWidget()
+        document_version_thumbnail_widget = DocumentVersionThumbnailWidget()
 
+        # Document
         SourceColumn(
             source=Document, label=_('Thumbnail'),
             func=lambda context: document_thumbnail_widget.render(
@@ -189,6 +196,7 @@ class DocumentsApp(MayanAppConfig):
             source=Document, label=_('Type'), attribute='document_type'
         )
 
+        # DocumentPage
         SourceColumn(
             source=DocumentPage, label=_('Thumbnail'),
             func=lambda context: document_page_thumbnail_widget.render(
@@ -208,6 +216,7 @@ class DocumentsApp(MayanAppConfig):
             attribute='document_version.document.document_type'
         )
 
+        # DocumentType
         SourceColumn(
             source=DocumentType, label=_('Documents'),
             func=lambda context: context['object'].get_document_count(
@@ -220,6 +229,7 @@ class DocumentsApp(MayanAppConfig):
             func=lambda context: two_state_template(context['object'].enabled)
         )
 
+        # DeletedDocument
         SourceColumn(
             source=DeletedDocument, label=_('Thumbnail'),
             func=lambda context: document_thumbnail_widget.render(
@@ -235,6 +245,7 @@ class DocumentsApp(MayanAppConfig):
             attribute='deleted_date_time'
         )
 
+        # DocumentVersion
         SourceColumn(
             source=DocumentVersion, label=_('Time and date'),
             attribute='timestamp'
@@ -251,6 +262,14 @@ class DocumentsApp(MayanAppConfig):
             source=DocumentVersion, label=_('Comment'),
             attribute='comment'
         )
+        SourceColumn(
+            source=DocumentVersion, label=_('Thumbnail'),
+            func=lambda context: document_version_thumbnail_widget.render(
+                instance=context['object']
+            )
+        )
+
+        # DuplicatedDocument
         SourceColumn(
             source=DuplicatedDocument, label=_('Thumbnail'),
             func=lambda context: document_thumbnail_widget.render(
@@ -422,7 +441,8 @@ class DocumentsApp(MayanAppConfig):
         # Document actions
         menu_object.bind_links(
             links=(
-                link_document_version_revert, link_document_version_download
+                link_document_version_view, link_document_version_revert,
+                link_document_version_download
             ),
             sources=(DocumentVersion,)
         )
@@ -464,6 +484,14 @@ class DocumentsApp(MayanAppConfig):
             links=(link_transformation_list,), sources=(DocumentPage,)
         )
 
+        # Document versions
+        menu_facet.bind_links(
+            links=(
+                link_document_version_return_document,
+                link_document_version_return_list
+            ), sources=(DocumentVersion,)
+        )
+
         namespace = StatisticNamespace(slug='documents', label=_('Documents'))
         namespace.add_statistic(
             slug='new-documents-per-month',
@@ -519,3 +547,5 @@ class DocumentsApp(MayanAppConfig):
 
         registry.register(DeletedDocument)
         registry.register(Document)
+        registry.register(DocumentType)
+        registry.register(DocumentVersion)