class BoardDetailActionSerializer(BaseBoardSerializer):
from apps.core.serializers.topic import TopicSerializer
topics = TopicSerializer(
many=True,
read_only=True,
source='topic_set',
)
class ArticleSerializer(BaseArticleSerializer):
parent_topic = TopicSerializer(read_only=True, )
parent_board = BoardSerializer(read_only=True, )
from apps.core.serializers.comment import ArticleNestedCommentListActionSerializer
comments = ArticleNestedCommentListActionSerializer(
many=True,
read_only=True,
source='comment_set',
)
article_update_logs = ArticleUpdateLogSerializer(
many=True,
read_only=True,
source='article_update_log_set',
)
comments_count = serializers.ReadOnlyField()
nested_comments_count = serializers.ReadOnlyField()
is_hidden = serializers.SerializerMethodField(read_only=True, )
why_hidden = serializers.SerializerMethodField(read_only=True, )
title = serializers.SerializerMethodField(read_only=True, )
hidden_title = serializers.SerializerMethodField(read_only=True, )
content = serializers.SerializerMethodField(read_only=True, )
hidden_content = serializers.SerializerMethodField(read_only=True, )
my_vote = serializers.SerializerMethodField(read_only=True, )
my_scrap = serializers.SerializerMethodField(read_only=True, )
my_report = serializers.SerializerMethodField(read_only=True, )
created_by = serializers.SerializerMethodField(read_only=True, )
read_status = serializers.SerializerMethodField(read_only=True, )
article_current_page = serializers.SerializerMethodField(read_only=True, )
class ArticleListActionSerializer(BaseArticleSerializer):
parent_topic = TopicSerializer(read_only=True, )
parent_board = BoardSerializer(read_only=True, )
is_hidden = serializers.SerializerMethodField(read_only=True, )
why_hidden = serializers.SerializerMethodField(read_only=True, )
title = serializers.SerializerMethodField(read_only=True, )
hidden_title = serializers.SerializerMethodField(read_only=True, )
created_by = serializers.SerializerMethodField(read_only=True, )
read_status = serializers.SerializerMethodField(read_only=True, )
class SideArticleSerializer(BaseArticleSerializer):
class Meta(BaseArticleSerializer.Meta):
pass
created_by = serializers.SerializerMethodField(read_only=True, )
is_hidden = serializers.SerializerMethodField(read_only=True, )
why_hidden = serializers.SerializerMethodField(read_only=True, )
parent_topic = TopicSerializer(read_only=True, )
title = serializers.SerializerMethodField(read_only=True, )
hidden_title = serializers.SerializerMethodField(read_only=True, )
class ArticleSerializer(BaseArticleSerializer):
class Meta(BaseArticleSerializer.Meta):
exclude = (
'migrated_hit_count',
'migrated_positive_vote_count',
'migrated_negative_vote_count',
)
@staticmethod
def search_articles(queryset, search):
return queryset.filter(
id__in=ArticleDocument.get_main_search_id_set(search))
@staticmethod
def filter_articles(obj, request):
from_view = request.query_params.get('from_view')
if from_view == '-portal':
return Article.objects.exclude(parent_board__slug='portal-notice')
elif from_view == 'user':
created_by_id = request.query_params.get('created_by',
request.user.id)
return Article.objects.filter(created_by_id=created_by_id)
elif from_view == 'board':
parent_board = obj.parent_board
return Article.objects.filter(parent_board=parent_board)
elif from_view == 'topic':
parent_topic = obj.parent_topic
return Article.objects.filter(parent_topic=parent_topic)
elif from_view == 'scrap':
articles = Article.objects.filter(
scrap_set__scrapped_by=request.user).order_by(
'-scrap_set__created_at')
if not articles.filter(id=obj.id).exists():
raise serializers.ValidationError(
gettext("This article is not in user's scrap list."))
return articles
return Article.objects.all()
def get_side_articles(self, obj):
request = self.context['request']
from_view = request.query_params.get('from_view')
if from_view is None:
return {'before': None, 'after': None}
if from_view not in [
'all', '-portal', 'board', 'topic', 'user', 'scrap', 'recent'
]:
raise serializers.ValidationError(
gettext("Wrong value for parameter 'from_view'."))
if from_view == 'recent':
after, before = self.get_side_articles_of_recent_article(
obj, request)
else:
articles = self.filter_articles(obj, request)
if request.query_params.get('search_query'):
articles = self.search_articles(
articles, request.query_params.get('search_query'))
articles = articles.exclude(id=obj.id)
before = articles.filter(created_at__lte=obj.created_at).first()
after = articles.filter(created_at__gte=obj.created_at).last()
return {
'before':
SideArticleSerializer(before, context=self.context).data
if before else None,
'after':
SideArticleSerializer(after, context=self.context).data
if after else None,
}
def get_side_articles_of_recent_article(self, obj, request):
article_read_log_set = obj.article_read_log_set.all()
# 현재 ArticleReadLog
curr_read_log_of_obj = article_read_log_set.filter(
read_by=request.user, ).order_by('-created_at')[0]
# 직전 ArticleReadLog
last_read_log_of_obj = article_read_log_set.filter(
read_by=request.user, ).order_by('-created_at')[1]
# 특정 글의 마지막 ArticleReadLog 를 찾기 위한 Subquery
last_read_log_of_article = ArticleReadLog.objects.filter(
article=models.OuterRef('pk')).order_by('-created_at')
# 특정 글의 마지막 Article created_at 을 last_read_at 으로 annotate 하고, last_read_at 기준으로 정렬
recent_articles = Article.objects.filter(
article_read_log_set__read_by=request.user, ).annotate(
last_read_at=models.Subquery(
queryset=last_read_log_of_article.exclude(
id=curr_read_log_of_obj.
id, # 무한루프 방지를 위해서 마지막(현재 request) 조회 기록은 제외한다.
).values('created_at')[:1], ), ).order_by(
'-last_read_at').distinct()
if not recent_articles.filter(id=obj.id).exists():
raise serializers.ValidationError(
gettext('This article is never read by user.'))
if request.query_params.get('search_query'):
recent_articles = self.search_articles(
recent_articles, request.query_params.get('search_query'))
recent_articles = recent_articles.exclude(
id=obj.id, # 자기 자신 제거
)
# 사용자가 현재 읽고 있는 글의 바로 직전 조회 기록보다 먼저 읽은 것 중 첫 번째
before = recent_articles.filter(
last_read_at__lte=last_read_log_of_obj.created_at, ).order_by(
'-last_read_at').first()
# 사용자가 현재 읽고 있는 글의 바로 직전 조회 기록보다 늦게 읽은 것 중 첫 번째
after = recent_articles.filter(
last_read_at__gte=last_read_log_of_obj.created_at, ).order_by(
'last_read_at').first()
return after, before
parent_topic = TopicSerializer(read_only=True, )
parent_board = BoardSerializer(read_only=True, )
from apps.core.serializers.comment import ArticleNestedCommentListActionSerializer
comments = ArticleNestedCommentListActionSerializer(
many=True,
read_only=True,
source='comment_set',
)
is_hidden = serializers.SerializerMethodField(read_only=True, )
why_hidden = serializers.SerializerMethodField(read_only=True, )
title = serializers.SerializerMethodField(read_only=True, )
hidden_title = serializers.SerializerMethodField(read_only=True, )
content = serializers.SerializerMethodField(read_only=True, )
hidden_content = serializers.SerializerMethodField(read_only=True, )
my_vote = serializers.SerializerMethodField(read_only=True, )
my_scrap = serializers.SerializerMethodField(read_only=True, )
created_by = serializers.SerializerMethodField(read_only=True, )
article_current_page = serializers.SerializerMethodField(read_only=True, )
side_articles = serializers.SerializerMethodField(read_only=True, )