Provide option to only export public versions as XLIFF

Fixes #1047

CHANGELOG.md

@@ -2,6 +2,7 @@ UNRELEASED
 ----------
 
 * [ [#1284](https://github.com/digitalfabrik/integreat-cms/issues/1284) ] Inherit status of new translations from source language on XLIFF import
+* [ [#1047](https://github.com/digitalfabrik/integreat-cms/issues/1047) ] Provide option to only export public versions as XLIFF
 
 
 2022.3.3

integreat_cms/cms/fixtures/test_data.json

@@ -521,6 +521,23 @@
       "page": 3
     }
   },
+  {
+    "model": "cms.pagetranslation",
+    "pk": 76,
+    "fields": {
+      "title": "Über die App Integreat Augsburg",
+      "slug": "uber-die-app-integreat-augsburg",
+      "status": "DRAFT",
+      "content": "<p>Unver&ouml;ffentlicher Entwurf</p>",
+      "language": 1,
+      "currently_in_translation": false,
+      "version": 2,
+      "minor_edit": false,
+      "last_updated": "2019-08-13T08:05:45.631Z",
+      "creator": 1,
+      "page": 3
+    }
+  },
   {
     "model": "cms.pagetranslation",
     "pk": 4,
@@ -606,6 +623,23 @@
       "page": 3
     }
   },
+  {
+    "model": "cms.pagetranslation",
+    "pk": 77,
+    "fields": {
+      "title": "About the Integreat App Augsburg",
+      "slug": "about-the-integreat-app-augsburg",
+      "status": "DRAFT",
+      "content": "<p>Unpublished draft</p>",
+      "language": 2,
+      "currently_in_translation": false,
+      "version": 2,
+      "minor_edit": false,
+      "last_updated": "2019-08-13T08:05:45.631Z",
+      "creator": 1,
+      "page": 3
+    }
+  },
   {
     "model": "cms.pagetranslation",
     "pk": 9,

integreat_cms/cms/models/abstract_content_translation.py

@@ -13,6 +13,7 @@
 from ..utils.translation_utils import ugettext_many_lazy as __
 
 
+# pylint: disable=too-many-public-methods
 class AbstractContentTranslation(AbstractBaseModel):
     """
     Data model representing a translation of some kind of content (e.g. pages or events)
@@ -267,6 +268,21 @@ def source_translation(self):
             return self.foreign_object.get_translation(self.source_language.slug)
         return None
 
+    @cached_property
+    def public_source_translation(self):
+        """
+        This property returns the public translation which was used to create the ``self`` translation.
+        It derives this information from the :class:`~integreat_cms.cms.models.regions.region.Region`'s root
+        :class:`~integreat_cms.cms.models.languages.language_tree_node.LanguageTreeNode`.
+
+        :return: The content translation in the source :class:`~integreat_cms.cms.models.languages.language.Language`
+                 (:obj:`None` if no public source translation exists)
+        :rtype: ~integreat_cms.cms.models.abstract_content_translation.AbstractContentTranslation
+        """
+        if self.source_language:
+            return self.foreign_object.get_public_translation(self.source_language.slug)
+        return None
+
     @cached_property
     def major_public_source_translation(self):
         """

integreat_cms/cms/templates/pages/page_tree.html

@@ -115,16 +115,23 @@ <h1 class="heading">{% trans 'Page Tree' %} <button data-show-tutorial="page-tre
                 {% trans 'Export published pages as PDF' %}
             </option>
             {% if request.user.expert_mode %}
-                <option
+                {% with language_translated_name=language.translated_name %}
                     {% if language == request.region.default_language %}
-                        disabled
-                        title="{% trans 'You cannot export XLIFF files for the default language' %}"
+                        <option disabled title="{% trans 'You cannot export XLIFF files for the default language' %}">
+                            {% blocktrans %}Export pages (including drafts) for translation to {{ language_translated_name }} as XLIFF{% endblocktrans %}
+                        </option>
+                        <option disabled title="{% trans 'You cannot export XLIFF files for the default language' %}">
+                            {% blocktrans %}Export published pages for translation to {{ language_translated_name }} as XLIFF{% endblocktrans %}
+                        </option>
                     {% else %}
-                        data-bulk-action="{% url 'download_xliff' region_slug=request.region.slug language_slug=language.slug %}"
+                        <option data-bulk-action="{% url 'download_xliff' region_slug=request.region.slug language_slug=language.slug %}">
+                            {% blocktrans %}Export pages (including drafts) for translation to {{ language_translated_name }} as XLIFF{% endblocktrans %}
+                        </option>
+                        <option data-bulk-action="{% url 'download_xliff_only_public' region_slug=request.region.slug language_slug=language.slug %}">
+                            {% blocktrans %}Export published pages for translation to {{ language_translated_name }} as XLIFF{% endblocktrans %}
+                        </option>
                     {% endif %}
-                >
-                    {% trans 'Export XLIFF for translation to' %} {{ language.translated_name }}
-                </option>
+                {% endwith %}
             {% endif %}
         </select>
         <button id="bulk-action-execute" class="btn">{% trans 'Execute' %}</button>

integreat_cms/cms/urls/protected.py

@@ -632,6 +632,12 @@
                                                         pages.download_xliff,
                                                         name="download_xliff",
                                                     ),
+                                                    path(
+                                                        "only-public/",
+                                                        pages.download_xliff,
+                                                        {"only_public": True},
+                                                        name="download_xliff_only_public",
+                                                    ),
                                                     path(
                                                         "upload/",
                                                         pages.upload_xliff,

integreat_cms/cms/views/pages/page_actions.py

@@ -285,7 +285,7 @@ def expand_page_translation_id(request, short_url_id):
 
 
 @permission_required("cms.view_page")
-def download_xliff(request, region_slug, language_slug):
+def download_xliff(request, region_slug, language_slug, only_public=False):
     """
     Download a zip file of XLIFF files.
     The target languages and pages are selected and the source languages automatically determined.
@@ -299,6 +299,9 @@ def download_xliff(request, region_slug, language_slug):
     :param language_slug: The slug of the target language
     :type language_slug: str
 
+    :param only_public: Whether only public versions should be exported
+    :type only_public: bool
+
     :return: A redirection to the :class:`~integreat_cms.cms.views.pages.page_tree_view.PageTreeView`
     :rtype: ~django.http.HttpResponseRedirect
     """
@@ -327,7 +330,9 @@ def download_xliff(request, region_slug, language_slug):
         parent__isnull=False,
     ).language
 
-    xliff_file_url = pages_to_xliff_file(request, pages, target_language)
+    xliff_file_url = pages_to_xliff_file(
+        request, pages, target_language, only_public=only_public
+    )
     if xliff_file_url:
         # Insert link with automatic download into success message
         messages.success(