def show():
all_pages = request.args.get('all_pages', '')
search = False
q = request.args.get('q')
if q:
search = True
try:
page = int(request.args.get('page', 1))
except ValueError:
page = 1
questions_all = []
key_words = ''
# 搜索关键字
if request.method == 'POST':
key_words = request.form.get('key_word')
if key_words:
indexs = db.index.find_one({key_words: {'$exists': True}})
if indexs:
ids = [ObjectId(id) for id in indexs[key_words].keys()]
questions_all = db.zhihu.find({'_id': {"$in": ids}}).sort('answer_count', -1)
if not questions_all:
if all_pages:
questions_all = db.zhihu.find().sort('answer_count', -1)
else:
questions_all = db.zhihu.find({'created': {"$gt": days_ago}}).sort('answer_count', -1)
#如果最近几天没有数据（没有爬数据），则显示前50条数据
if not questions_all.count():
questions_all = db.zhihu.find().sort('created', -1).limit(50)
pagination = Pagination(page=page, total=questions_all.count(True), search=search, record_name='questions')
pagination.per_page = 30 #每页30个条目
#pagination插件有问题，这里参考boostrap分页的写法
links = str(pagination.links).replace('<div class="pagination"><ul>', '<div><ul class="pagination">')
questions = questions_all[(page-1)*pagination.per_page:page*pagination.per_page]
return render_template('base.html', questions=questions, pagination=pagination, links=links, key_words=key_words)
