From 017308da9566e6edfb50d2ef8f62a273479e20af Mon Sep 17 00:00:00 2001
From: Anatoly <a.feteleu@spider.ru>
Date: Thu, 16 Jan 2020 14:19:56 +0300
Subject: [PATCH] refactored news transfer

---
 apps/news/transfer_data.py | 48 +++++++++++++++++++++-----------------
 apps/utils/methods.py      | 18 ++++++++++++++
 2 files changed, 44 insertions(+), 22 deletions(-)

diff --git a/apps/news/transfer_data.py b/apps/news/transfer_data.py
index f4e16739..3586e357 100644
--- a/apps/news/transfer_data.py
+++ b/apps/news/transfer_data.py
@@ -11,6 +11,7 @@ from tag.models import TagCategory, Tag
 from translation.models import SiteInterfaceDictionary
 from transfer.models import PageTexts, PageCounters, PageMetadata
 from transfer.serializers.news import NewsSerializer
+from utils.methods import transform_camelcase_to_underscore
 
 
 def add_locale(locale, data):
@@ -36,35 +37,38 @@ def clear_old_news():
 
     images.delete()
     news.delete()
-    # NewsType.objects.all().delete()
 
     print(f'Deleted {img_num} images')
     print(f'Deleted {news_num} news')
 
 
 def transfer_news():
-    news_type, _ = NewsType.objects.get_or_create(name='news')
+    migrated_news_types = ('News', 'StaticPage', )
 
-    queryset = PageTexts.objects.filter(
-        page__type='News',
-    ).annotate(
-        page__id=F('page__id'),
-        news_type_id=Value(news_type.id, output_field=IntegerField()),
-        page__created_at=F('page__created_at'),
-        page__account_id=F('page__account_id'),
-        page__state=F('page__state'),
-        page__template=F('page__template'),
-        page__site__country_code_2=F('page__site__country_code_2'),
-        page__root_title=F('page__root_title'),
-        page__attachment_suffix_url=F('page__attachment_suffix_url'),
-        page__published_at=F('page__published_at'),
-    )
+    for news_type in migrated_news_types:
+        news_type_obj, _ = NewsType.objects.get_or_create(
+            name=transform_camelcase_to_underscore(news_type))
 
-    serialized_data = NewsSerializer(data=list(queryset.values()), many=True)
-    if serialized_data.is_valid():
-        serialized_data.save()
-    else:
-        pprint(f'News serializer errors: {serialized_data.errors}')
+        queryset = PageTexts.objects.filter(
+            page__type=news_type,
+        ).annotate(
+            page__id=F('page__id'),
+            news_type_id=Value(news_type_obj.id, output_field=IntegerField()),
+            page__created_at=F('page__created_at'),
+            page__account_id=F('page__account_id'),
+            page__state=F('page__state'),
+            page__template=F('page__template'),
+            page__site__country_code_2=F('page__site__country_code_2'),
+            page__root_title=F('page__root_title'),
+            page__attachment_suffix_url=F('page__attachment_suffix_url'),
+            page__published_at=F('page__published_at'),
+        )
+
+        serialized_data = NewsSerializer(data=list(queryset.values()), many=True)
+        if serialized_data.is_valid():
+            serialized_data.save()
+        else:
+            pprint(f'News serializer errors: {serialized_data.errors}')
 
 
 def update_en_gb_locales():
@@ -166,5 +170,5 @@ data_types = {
         update_en_gb_locales,
         add_views_count,
         add_tags,
-    ]
+    ],
 }
diff --git a/apps/utils/methods.py b/apps/utils/methods.py
index 741fd23b..b9855545 100644
--- a/apps/utils/methods.py
+++ b/apps/utils/methods.py
@@ -4,6 +4,7 @@ import random
 import re
 import string
 from collections import namedtuple
+from functools import reduce
 from io import BytesIO
 
 import requests
@@ -173,6 +174,23 @@ def transform_into_readable_str(raw_string: str, postfix: str = 'SectionNode'):
         return f"{''.join([i.capitalize() for i in result])}"
 
 
+def transform_camelcase_to_underscore(raw_string: str):
+    """
+    Transform str, i.e:
+    from
+    "ContentPage"
+    to
+    "content_page"
+    """
+
+    re_exp = r'[A-Z][^A-Z]*'
+    result = [i.lower() for i in re.findall(re_exp, raw_string) if i]
+    if result:
+        return reduce(lambda x, y: f'{x}_{y}', result)
+    else:
+        return raw_string
+
+
 def section_name_into_index_name(section_name: str):
     """
     Transform slug into section name, i.e: