Labels generation: merge multiple libreoffice document into one

1 files changed, 20 insertions, 2 deletions

diff --git a/ishtar_common/models.py b/ishtar_common/models.py
index 6fbb0f313..4165128f6 100644
--- a/ishtar_common/models.py
+++ b/ishtar_common/models.py
@@ -3169,6 +3169,7 @@ class DocumentTemplate(models.Model):
                       datetime.datetime.now().strftime('%Y-%m-%d-%H%M%S')
         suffix = "." + self.template.name.split('.')[-1]
         len_objects = len(objects)
+        names = []
         for idx in range(int(len(objects) / self.label_per_page) + 1):
             if idx * self.label_per_page >= len_objects:
                 break
@@ -3184,11 +3185,28 @@ class DocumentTemplate(models.Model):
                 result = engine.render(self.template, **values)
             except TemplateSyntaxError as e:
                 raise TemplateSyntaxError(str(e), e.lineno)
-            output_name = main_output_name + "-" + str(idx + 1) + suffix
+            output_name = main_output_name + "-" + str(idx) + suffix
+            names.append(output_name)
             output = open(output_name, 'wb')
             output.write(result)
-        # output_name = main_output_name + suffix
+        output_name = main_output_name + suffix
         # TODO: merge docs - return the last for now
+        from ooopy.OOoPy        import OOoPy
+        from ooopy.Transformer  import Transformer
+        import ooopy.Transforms as     Transforms
+        o = OOoPy(infile=names[0], outfile=output_name)
+        if len(names) > 1:
+            t = Transformer(
+                o.mimetype,
+                Transforms.get_meta(o.mimetype),
+                Transforms.Concatenate(*(names[1:])),
+                Transforms.renumber_all(o.mimetype),
+                Transforms.set_meta(o.mimetype),
+                Transforms.Fix_OOo_Tag(),
+                Transforms.Manifest_Append()
+            )
+            t.transform (o)
+        o.close()
         return output_name