django中使用原生SQL语句

Posted 2022-10-14

views中代码；

# 有多个数据库时
from django.db import connections

# 傳入游标,得到字典結果集
def dictfetchall(cursor):
    "将游标返回的结果保存到一个字典对象中"
    desc = cursor.description
    return [
    dict(zip([col[0] for col in desc], row))
    for row in cursor.fetchall()
    ]

def seldata(request):
        sql ="SELECT TOP 100 * FROM EwData"
        conn = connections[‘MyDB‘]          #連接的數據庫
        cur = conn.cursor()                  #連接游標
        cur.execute(sql)                    #執行SQL語名
        data = dictfetchall(cur)               #把結果用字典返回
        return render(request, ‘ewdata.html‘, ‘ew‘: data,‘fcol‘:data[0])

html代码：

<table class="gridtable">
            <tr>
               % for k in fcol %
                    <th> k </th>
                % endfor %
            </tr>
                % for i in ew %
                    <tr>
                                        #  根据SQL中的字段名显示数据 #
                    <td> i.McNo </td>
                    <td> i.SN </td>
                    <td> i.Model </td>
                    <td> i.Block </td>
                    <td> i.Floor </td>
                    <td> i.Line </td>
                    <td> i.Wight </td>
                    <td> i.TestTime </td>
                    <td> i.Abortive </td>
                    <td> i.Checker </td>
                    <td> i.Multiple </td>
                    <td> i.PackSN </td>
                    </tr>
                % endfor %
        </table>