From bc0db915be267c7c2f26451d1a1b5a435c00fc80 Mon Sep 17 00:00:00 2001
From: alex <birukov.system@gmail.com>
Date: Wed, 25 Dec 2019 09:15:36 +0300
Subject: [PATCH] author for review text

---
 apps/review/admin.py            |  1 +
 apps/review/models.py           | 37 +++++---------
 apps/review/serializers/back.py | 85 ++++++++++++++++++++++++++++++++-
 3 files changed, 98 insertions(+), 25 deletions(-)

diff --git a/apps/review/admin.py b/apps/review/admin.py
index 3e5ee4a2..61c4d15a 100644
--- a/apps/review/admin.py
+++ b/apps/review/admin.py
@@ -16,4 +16,5 @@ class ReviewAdminModel(BaseModelAdminMixin, admin.ModelAdmin):
 class ReviewTextAuthorAdminModel(BaseModelAdminMixin, admin.ModelAdmin):
     """Admin model for model ReviewTextAuthor."""
 
+    list_display = ('author', 'review', 'locale', 'modified')
     raw_id_fields = ('author', 'review')
diff --git a/apps/review/models.py b/apps/review/models.py
index b412b305..ee4b74a3 100644
--- a/apps/review/models.py
+++ b/apps/review/models.py
@@ -97,30 +97,6 @@ class Review(BaseAttributes, TranslatedFieldsMixin):
         verbose_name_plural = _('Reviews')
 
 
-@receiver(signal=post_init, sender=Review)
-def post_init_handler(instance, **kwargs):
-    instance.original_text = instance.text
-
-
-@receiver(signal=post_save, sender=Review)
-def post_save_handler(instance, **kwargs):
-    new_text = instance.text
-    old_text = instance.original_text
-    if new_text != old_text:
-        for locale in new_text:
-            if locale in old_text:
-                pass
-            else:
-                # TODO: для добавленной локали создать запись в ReviewTextAuthor
-                pass
-
-        # TODO: для измененной локали создать или обновить запись в ReviewTextAuthor
-        # TODO: для удаленной локали удалить соответствующую запись в ReviewTextAuthor
-
-        pprint(instance.text)
-        pprint(instance.original_text)
-
-
 class ReviewTextAuthor(ProjectBaseMixin):
     author = models.ForeignKey(
         'account.User',
@@ -142,6 +118,19 @@ class ReviewTextAuthor(ProjectBaseMixin):
         unique_together = ('locale', 'review')
 
 
+# @receiver(signal=post_init, sender=Review)
+# def post_init_handler(instance, **kwargs):
+#     instance.original_text = instance.text
+#
+#
+# @receiver(signal=post_save, sender=Review)
+# def post_save_handler(instance, **kwargs):
+#     new_text = instance.text
+#     old_text = instance.original_text
+#     pprint(instance.text)
+#     pprint(instance.original_text)
+
+
 class Inquiries(GalleryMixin, ProjectBaseMixin):
     NONE = 0
     DINER = 1
diff --git a/apps/review/serializers/back.py b/apps/review/serializers/back.py
index 75df94e2..ffe14d22 100644
--- a/apps/review/serializers/back.py
+++ b/apps/review/serializers/back.py
@@ -1,9 +1,10 @@
 """Review app back serializers."""
+
 from django.contrib.contenttypes.models import ContentType
 from rest_framework import serializers
 
 from account.models import User
-from review.models import Review
+from review.models import Review, ReviewTextAuthor
 
 
 class _ReviewerSerializer(serializers.ModelSerializer):
@@ -28,10 +29,24 @@ class _ContentTypeSerializer(serializers.ModelSerializer):
         )
 
 
+class _ReviewTextAuthorSerializer(serializers.ModelSerializer):
+    author = _ReviewerSerializer(read_only=True)
+
+    class Meta:
+        model = ReviewTextAuthor
+        fields = (
+            'id',
+            'author',
+            'locale',
+            'modified',
+        )
+
+
 class ReviewBackSerializer(serializers.ModelSerializer):
     reviewer_data = _ReviewerSerializer(read_only=True, source='reviewer')
     content_type_data = _ContentTypeSerializer(read_only=True, source='content_type')
     status_display = serializers.CharField(read_only=True, source='get_status_display')
+    authors = _ReviewTextAuthorSerializer(read_only=True, many=True, source='text_authors')
 
     class Meta:
         model = Review
@@ -51,4 +66,72 @@ class ReviewBackSerializer(serializers.ModelSerializer):
             'content_type',
             'content_type_data',
             'object_id',
+            'authors',
         )
+
+    def update(self, instance, validated_data):
+        old_text = instance.text
+        new_text = validated_data['text']
+
+        # если поле text не менялось - то ничего не делаем
+        if new_text == old_text:
+            return super().update(instance, validated_data)
+
+        # если пользователь анонимный - то ничего не делаем
+        user = self.context['request'].user
+        if user.is_anonymous:
+            return super().update(instance, validated_data)
+
+        for locale, text in new_text.items():
+
+            # если поменяли имеющийся текст
+            if locale in old_text and text != old_text[locale]:
+                review_author, _ = ReviewTextAuthor.objects.update_or_create(
+                    review=instance,
+                    locale=locale,
+                    defaults={
+                        'author': user,
+                    }
+                )
+
+            # если добавили новый перевод
+            elif locale not in old_text:
+                ReviewTextAuthor.objects.create(
+                    author=user,
+                    review=instance,
+                    locale=locale,
+                )
+
+        for locale in old_text:
+
+            # Если удалили перевод
+            if locale not in new_text:
+                ReviewTextAuthor.objects.filter(
+                    author=user,
+                    review=instance,
+                    locale=locale,
+                ).delete()
+
+        return super().update(instance, validated_data)
+
+    def create(self, validated_data):
+        obj = super().create(validated_data)
+        new_text = validated_data['text']
+
+        # если нет переводов для review - то ничего не делаем
+        if not isinstance(new_text, dict):
+            return obj
+
+        # если пользователь анонимный - то ничего не делаем
+        user = self.context['request'].user
+        if user.is_anonymous:
+            return obj
+
+        for locale, text in new_text.items():
+            ReviewTextAuthor.objects.create(
+                author=user,
+                review=obj,
+                locale=locale,
+            )
+
+        return obj