Add "ocr_content" accessor to the DocumentVersion class to return

the ocr content.

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

mayan/apps/ocr/apps.py

@@ -35,6 +35,7 @@ from .links import (
 )
 from .permissions import permission_ocr_document, permission_ocr_content_view
 from .queues import *  # NOQA
+from .utils import get_document_ocr_content
 
 logger = logging.getLogger(__name__)
 
@@ -84,6 +85,9 @@ class OCRApp(MayanAppConfig):
         DocumentVersionOCRError = self.get_model('DocumentVersionOCRError')
 
         Document.add_to_class('submit_for_ocr', document_ocr_submit)
+        DocumentVersion.add_to_class(
+            'ocr_content', get_document_ocr_content
+        )
         DocumentVersion.add_to_class(
             'submit_for_ocr', document_version_ocr_submit
         )

mayan/apps/ocr/utils.py

@@ -1,12 +1,15 @@
 from __future__ import unicode_literals
 
+from django.apps import apps
 from django.utils.encoding import force_text
 from django.utils.html import conditional_escape
 
-from .models import DocumentPageOCRContent
-
 
 def get_document_ocr_content(document):
+    DocumentPageOCRContent = apps.get_model(
+        app_label='ocr', model_name='DocumentPageOCRContent'
+    )
+
     for page in document.pages.all():
         try:
             page_content = page.ocr_content.content