準備視圖函數search()

修改base.html 中搜索輸入框所在的

<form action="{{ url_for('search') }}" method="get">

?? <input name="q" type="text" placeholder="請輸入關鍵字">

完成視圖函數search()

獲取搜索關鍵字
q = request.args.get('q’)

條件查詢
qu = Question.query.filter(Question.title.contains(q)).order_by('-creat_time’)

加載查詢結果：
return render_template('index.html', question=qu）

組合條件查詢
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

?

@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) <form action="{{ url_for('search') }}" method="get" style="float: right"><input name="q" type="text" class="form-control" style="width: 250px" placeholder="請輸入關鍵字" ><button type="submit" style="width: 80px">搜索</button></form>

?

轉載于:https://www.cnblogs.com/qq724852210/p/8076012.html

總結

以上是生活随笔為你收集整理的实现搜索功能的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。