Django重新整理4---ModelForm-set(批量处理数据)

时间：2023-03-09 18:50:46
Django重新整理4---ModelForm-set(批量处理数据)

1.

#引用modelformset

from django.forms.models import modelformset_factory

#必须继承forms.ModelForm！

class StudentStudyRecordModelForm(forms.ModelForm):

    class Meta:

#需要建立关联的表StudentStudyRecord

        model = StudentStudyRecord

#score", "homework_note  显示的字段

        fields = ["score", "homework_note"]

2.

class RecordScoreView(View):

    def get(self, request, class_study_record_id):

        # modelformset_factory固定的写法 ，model=StudentStudyRecord这是需要关联的表名，form后边是我们上边的新建类名 ，  extra=0  不加它默认数据多一行

        model_formset_cls = modelformset_factory(model=StudentStudyRecord, form=StudentStudyRecordModelForm, extra=0)

        queryset = StudentStudyRecord.objects.filter(classstudyrecord=class_study_record_id)

        print(class_study_record_id)   #2 第2天的课程

        print("queryset",queryset)   #查询第2天课程的学生记录

        formset = model_formset_cls(queryset=queryset)

        return render(request, "record_score.html", locals())

    def post(self, request, class_study_record_id):

        model_formset_cls = modelformset_factory(model=StudentStudyRecord, form=StudentStudyRecordModelForm, extra=0)

        queryset = StudentStudyRecord.objects.filter(classstudyrecord=class_study_record_id)

        # print("request.POST", request.POST)

        formset = model_formset_cls(request.POST)

        #??????????????????????????????//

        print("formset",formset)

        print(123456789)

        #判断是否通过校验

        if formset.is_valid():

            formset.save()

        # print(formset.errors)

        return redirect(request.path)

3.

#record_score.html

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

    <link rel="stylesheet" href="/static/bootstrap/css/bootstrap.min.css">

</head>

<body>

<h3>录入{{ class_study_record_obj.class_obj }}day{{ class_study_record_obj.day_num }}成绩</h3>

 <div class="panel panel-default">

        <div class="panel-heading">学习记录</div>

        <div class="panel-body">

            <div style="width: 700px;margin: 0 auto;">

                <form method="post" action="">

                    {% csrf_token %}

                            {# 固定的写法#}

                    {{ formset.management_form }}

                    <table class="table table-bordered">

                        <thead>

                        <tr>

                            <th>姓名</th>

                            <th>考勤</th>

                            <th>作业成绩</th>

                            <th>作业评语</th>

                        </tr>

                        </thead>

                        <tbody>

                        {% for form in formset %}

                            <tr>

                                {{ form.id }}

                                <td>{{ form.instance.student }}</td>

                                <td>{{ form.instance.get_record_display }} </td>

                                <td>{{ form.score }} </td>

                                <td>{{ form.homework_note }}</td>

                            </tr>

                        {% endfor %}

                        </tbody>

                    </table>

                    <input type="submit" value="保存">

                </form>

            </div>

        </div>

    </div>

</body>

</html>

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