- 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">
- 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)
- 获取搜索关键字
- 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
)
)
)
https://stackoverflow.com/questions/13370993/sqlalchemy-query-and-or-issue
py:
from sqlalchemy import or_,and_
@app.route('/search/') def search(): qu=request.args.get('q') ques=Question.query.filter( or_( Question.title.contains(qu), Question.detail.contains(qu) ) ).order_by('-creat_time') return render_template('index.html',questions=ques)
daohang.html:
<form action="{{ url_for('search') }}" method="get" class="navbar-form navbar-left"> <input name="q" type="text" class="form-control" placeholder="请输入关键字"> <button type="submit" class="btn btn-default"><span class="glyphicon glyphicon-search" aria-hidden="true"></span>查找</button> </form>