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from haystack . query import SearchQuerySet
from blog . models import Article , Category
class BlogApi :
def __init__ ( self ) :
self . searchqueryset = SearchQuerySet ( ) # 初始化搜索查询集，用于处理文章搜索功能
self . searchqueryset . auto_query ( ' ' ) # 执行空查询，初始化搜索结果集（可能用于后续叠加过滤条件）
self . __max_takecount__ = 8 # 定义私有变量，
def search_articles ( self , query ) :
sqs = self . searchqueryset . auto_query ( query ) # 使用搜索查询集执行自动查询（可能包含分词、过滤等处理）
sqs = sqs . load_all ( ) # 预加载所有关联数据，减少数据库查询次数（优化性能）
return sqs [ : self . __max_takecount__ ] # 限制返回结果数量，
def get_category_lists ( self ) :
return Category . objects . all ( ) # 返回所有分类对象（未限制数量，通常分类数量较少）
def get_category_articles ( self , categoryname ) :
articles = Article . objects . filter ( category__name = categoryname ) # 过滤出指定分类下的所有文章（通过外键关联查询）
if articles :
return articles [ : self . __max_takecount__ ]
return None # 若存在符合条件的文章， ；
def get_recent_articles ( self ) :
return Article . objects . all ( ) [ : self . __max_takecount__ ]
# 返回所有文章的前N条（ ）
