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from django import forms
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from course.models import Course, StudentCourse, Schedule
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# 创建课程的表单
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class CourseForm(forms.ModelForm):
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class Meta:
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model = Course
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exclude = ['status', 'teacher']
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# 添加课程时刻表的表单
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class ScheduleForm(forms.ModelForm):
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class Meta:
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model = Schedule
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exclude = ['course']
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# 学生的分数是记录在学生课程关系表中的，
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# 在学生选课成功后会新建一条对应的数据。
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# 给分，则是修改其中的分数字段，即对学生课程表模型进行更新。
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class ScoreForm(forms.ModelForm):
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# 其中Meta是元数据类，用于去编辑设置一些更深层次的设置。
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# 要使用一个模型来创建表单，则在Meta元数据类中指定对应的model属性
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class Meta:
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model = StudentCourse
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fields = ["student", "course", "scores", "comments"]
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student = forms.CharField(label="学生", disabled=True)
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course = forms.CharField(label="课程", disabled=True)
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.initial["student"] = self.instance.student
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self.initial["course"] = self.instance.course
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def clean_student(self):
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return self.initial["student"]
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def clean_course(self):
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return self.initial["course"]
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# 学生给老师评教和老师给学生评分的后端逻辑是一样的，都是修改学生课程关系表内的数据
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class RateForm(forms.ModelForm):
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class Meta:
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model = StudentCourse
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fields = ["course", "scores", "comments", "rating", "assessment"]
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course = forms.CharField(label="课程", disabled=True)
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scores = forms.IntegerField(label="成绩", disabled=True)
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comments = forms.CharField(label="老师评价", disabled=True)
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def __init__(self, *args, **kwargs):
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super(RateForm, self).__init__(*args, **kwargs)
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self.initial["course"] = self.instance.course
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self.initial["scores"] = self.instance.scores
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self.initial["comments"] = self.instance.comments
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def clean_course(self):
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return self.initial["course"]
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def clean_scores(self):
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return self.initial["scores"]
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def clean_comments(self):
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return self.initial["comments"]
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