commit_04

SSCM/constants.py

@@ -1 +1,17 @@
-INVALID_KIND="Invalid kind.Kind should be one or teacher."
+INVALID_KIND = "Invalid kind.Kind should be one or teacher."
+
+COURSE_STATUS = {
+    1: "未开始选课",
+    2: "开始选课",
+    3: "结束选课",
+    4: "结课",
+    5: "打分完成",
+}
+
+COURSE_OPERATION = {
+    1: "开始选课",
+    2: "结束选课",
+    3: "结课",
+    4: "给分",
+    5: "查看详情"
+}

SSCM/course/models.py

@@ -1,3 +1,103 @@
 from django.db import models
+import datetime
+from user.models import Student, Teacher
+from constants import COURSE_STATUS, COURSE_OPERATION
+
 
 # Create your models here.
+def current_year():
+    return datetime.date.today().year
+
+
+class Course(models.Model):
+    credits = [(i, i) for i in range(1, 6)]
+
+    semesters = [
+        ('Autumn', '上'),
+        ('Spring', '下')
+    ]
+
+    name = models.CharField(max_length=50, verbose_name="课程名")
+    introduction = models.CharField(max_length=250, verbose_name='介绍')
+    credit = models.IntegerField(verbose_name='学分', choices=credits)
+    max_number = models.IntegerField(verbose_name="课程最大人数")
+
+    year = models.IntegerField(verbose_name='年份', default=current_year)
+    semester = models.CharField(max_length=20, verbose_name='学期', choices=semesters)
+
+    status = models.IntegerField(verbose_name="课程状态", default=1)
+
+    teacher = models.ForeignKey(Teacher, verbose_name="课程教师", on_delete=models.CASCADE)
+
+    def get_status_text(self):
+        return COURSE_STATUS[self.status]
+
+    def get_op_text(self):
+        return COURSE_OPERATION[self.status]
+
+    def get_current_count(self):
+        courses = StudentCourse.objects.filter(course=self, with_draw=False)
+        return len(courses)
+
+    def get_schedules(self):
+        schedules = Schedule.objects.filter(course=self)
+        return schedules
+
+    def __str__(self):
+        return "%s (%s)" % (self.name, self.teacher.name)
+
+
+def weekday_choices():
+    weekday_str = ['周一', '周二', '周三', '周四', '周五', '周六', '周日']
+    return [(i+1, weekday_str[i]) for i in range(7)]
+
+
+class Schedule(models.Model):
+    weekday = models.IntegerField(choices=weekday_choices(), verbose_name="日期")
+    start_time = models.TimeField(verbose_name="上课时间")
+    end_time = models.TimeField(verbose_name="下课时间")
+    location = models.CharField(max_length=100, verbose_name="上课地点")
+    remarks = models.CharField(max_length=100, verbose_name="备注", null=True, blank=True)
+
+    start_week = models.IntegerField(verbose_name="第几周开始")
+    end_week = models.IntegerField(verbose_name="第几周结束")
+
+    intervals = [
+        (1, "无间隔"),
+        (2, "每隔一周上一次")
+    ]
+
+    week_interval = models.IntegerField(verbose_name="周间隔", choices=intervals, default=1)
+
+    course = models.ForeignKey(Course, verbose_name="课程名", on_delete=models.CASCADE)
+
+    def __str__(self):
+        s = "第%s周-第%s周 " % (self.start_week, self.end_week)
+        if self.week_interval == 2:
+            s += "隔一周 "
+        s += "%s %s-%s " % (self.get_weekday_display(), self.start_time.strftime("%H:%M"),
+                            self.end_time.strftime("%H:%M"))
+        s += "在%s" % self.location
+        if self.remarks:
+            s += " %s" % self.remarks
+
+        return s
+
+
+class StudentCourse(models.Model):
+    create_time = models.DateTimeField(auto_now=True)
+    with_draw = models.BooleanField(default=False)
+    with_draw_time = models.DateTimeField(default=None, null=True)
+
+    scores = models.IntegerField(verbose_name="成绩", null=True)
+    comments = models.CharField(max_length=250, verbose_name="老师评价", null=True)
+
+    rates = [(i, i) for i in range(1, 6)]
+
+    rating = models.IntegerField(verbose_name="学生评分", choices=rates, null=True,
+                                 help_text="最高5分，最低分1分")
+
+    assessment = models.CharField(max_length=250, verbose_name="学生评价", null=True)
+
+    student = models.ForeignKey(Student, on_delete=models.CASCADE)
+    course = models.ForeignKey(Course, on_delete=models.CASCADE)