实现搜索功能
准备视图函数search()
修改base.html 中搜索输入框所在的
- <form action="{{ url_for('search') }}" method="get">
<input name="q" type="text" placeholder="请输入关键字">
<form method="get" action="{{ url_for('search') }}"> <div style="position: absolute;top: 24px;left:20%;"> <input id="keyword" type="text" name="q" placeholder="请输入关键字"> <button type="submit" >搜索</button> </div> </form>
完成视图函数search()
获取搜索关键字
q = request.args.get('q’)
条件查询
qu = Question.query.filter(Question.title.contains(q)).order_by('-creat_time’)
加载查询结果:
return render_template('index.html', question=qu)
- 组合条件查询
from sqlalchemy import or_, and_
示例:
Lobby.query.filter(
or_(
and_(
Lobby.id == Team.lobby_id,
LobbyPlayer.team_id == Team.id,
LobbyPlayer.player_id == player.steamid
),
and_(
Lobby.id == spectator_table.c.lobby_id,
spectator_table.c.player_id == player.steamid
)
)
@app.route('/search/') def search(): qu=request.args.get('q') print('fdr') ques=Question.query.filter( or_(Question.title.contains(qu), Question.detail.contains(qu) )).order_by('create_time') return render_template('shouye.html', question=ques)