0.5.9 documentation prev and next article navigation

DocsApp/models.py

@@ -43,6 +43,63 @@ class DocArt(BaseModelViewPage):
         related_name='rel_docArts_for_version'
     )
 
+    def get_last_child(self):
+        return self.rel_childArts_for_docArt.filter(enable=True).order_by('-order').first()
+
+    def get_first_child(self):
+        return self.rel_childArts_for_docArt.filter(enable=True).order_by('order').first()
+
+    def get_last_version(self):
+        return self.versions.all().order_by('-order').first()
+
+    def get_children(self, version):
+        return self.rel_childArts_for_docArt.filter(enable=True)
+
+
+    def get_prev_article(self, version=None):
+        if not version:
+            version = self.get_last_version()
+
+        art = DocArt.objects.filter(
+            enable=True,
+            versions=version,
+            order__lt=self.order,
+            parent=self.parent
+        ).order_by('-order').first()
+
+        if art:
+            while art.get_last_child():
+                art = art.get_last_child()
+
+        if not art and self.parent:
+            art = self.parent
+
+        return art
+
+
+    def get_next_article(self, version=None):
+        if not version:
+            version = self.get_last_version()
+
+        art = self.get_first_child()
+        if not art:
+            art = DocArt.objects.filter(
+                enable=True,
+                versions=version,
+                order__gt=self.order,
+                parent=self.parent
+            ).order_by('order').first()
+
+        if not art and self.parent:
+            art = DocArt.objects.filter(
+                enable=True,
+                versions=version,
+                order__gt=self.parent.order,
+                parent=self.parent.parent
+            ).order_by('order').first()
+
+        return art
+
     def get_parents_path(self, version_obj=None):
 
         res = []

DocsApp/views.py

@@ -42,6 +42,7 @@ def DocsView(request, version=None, art_url=None):
 
     if art_url and version:
         kwargs = {
+            'enable': True,
             'url': art_url,
             'versions__url': version,
         }
@@ -49,7 +50,7 @@ def DocsView(request, version=None, art_url=None):
             art = DocArt.objects.get(**kwargs)
 
             try:
-                vers_obj = DocVersion.objects.get(url=version)
+                vers_obj = DocVersion.objects.get(enable=True, url=version)
             except DocVersion.DoesNotExist:
                 raise Http404
 
@@ -81,6 +82,8 @@ def DocsView(request, version=None, art_url=None):
                 'doc_tree': doc_tree,
                 'allow_versions': versions,
                 'breadcrumbs': breadcrumbs,
+                'prev_article': art.get_prev_article(version=vers_obj),
+                'next_article': art.get_next_article(version=vers_obj)
             }
             t = loader.get_template('pages/p_documentation.html')
             return get_inter_http_respose(t, Dict, request)
@@ -91,7 +94,7 @@ def DocsView(request, version=None, art_url=None):
 
     if version:
         try:
-            vers_obj = DocVersion.objects.get(url=version)
+            vers_obj = DocVersion.objects.get(enable=True, url=version)
             if vers_obj:
                 art = vers_obj.get_article()
                 if art:
@@ -107,7 +110,7 @@ def DocsView(request, version=None, art_url=None):
         versions=None
     ).filter(
         enable=True, parent=None
-    ).order_by('versions__order', 'order').first()
+    ).order_by('-versions__order', 'order').first()
     if art:
         url = reverse(
             'docs_art_page',