Django——線上教育專案總結
阿新 • • 發佈：2018-11-14
線上教育平臺
軟體依賴：
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WEB框架：Django（1.11.7）、Django REST framework
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前端框架：Vue（2.5.16）
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資料庫: MySql、redis
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支付平臺：支付寶
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訊息推送平臺：微信服務號，電子郵件
主要功能如下：
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允許學生註冊、登陸
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瀏覽本線上教育平臺所提供的課程列表、課程介紹（課程大綱，）
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學生將課程加入購物車
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完成購物後，進入結算中心，通過支付寶支付購買課程
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完成課程購買後，分配導師
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開始學習，觀看本站提供的教學視訊
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通過答疑係統，提交學習中遇到的問題，與同學討論或者導師答疑
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完成章節學習後，提交作業
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導師批改作業並打分
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模組學習完成後進行考核
專案意義
目標：
通過互聯技術，變革傳統教育方式，依賴強大的導師服務系統，提高線上教育的效率與成功率。
專案策略:
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提供具有時間限制的教學服務
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安排合理的模組化學習
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聘用高素質的導師，提供優質服務
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導師對學員一對一線上考核
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學習週期中全程導師監督（跟進記錄）
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提供高效的答疑解惑服務（12小時）
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建立完善的獎學金制度
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是否按學習計劃完成學業
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每章節作業完成情況
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專案開發團隊與進度
團隊構成：
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開發
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導師後臺，stark元件+rbac ： 1人
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管理後臺，stark元件+rbac ： 1人
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主站
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vue.js 1人
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api 村長+1/2文州+1/2Alex+其他 + 村長
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運維(1人)
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測試(1人)
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產品經理(1人)
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UI設計(1人)
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運營(1人)
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銷售(4人)
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全職導師(2人)
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簽約講師（...）
週期：
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7月份專案開始
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11月份上線
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11月份~次年5月份： 修Bug，活動支援，廣告。。。
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課程大類
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課程子類
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學位課
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講師
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獎學金
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專題課（學位課模組表）
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價格策略(contenttype)
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課程詳細(o2o -> 水平分表)
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常見問題
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課程大綱
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章節
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課時
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作業
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深科技（4+2）
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使用者表
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使用者token
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文章來源
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文章表
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通用評論表
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支付相關（4+2）
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優惠券表
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訂單表
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訂單詳情表
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文章表
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通用評論表
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Django中實現:
from django.db import models from django.contrib.contenttypes.models import ContentType from django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation from django.db.models import Q class CourseCategory(models.Model): """課程大類, e.g 前端 後端...""" name = models.CharField(max_length=64, unique=True) def __str__(self): return "%s" % self.name class Meta: verbose_name = "課程大類" verbose_name_plural = "課程大類" class CourseSubCategory(models.Model): """課程子類, e.g python linux """ category = models.ForeignKey("CourseCategory") name = models.CharField(max_length=64, unique=True) def __str__(self): return "%s" % self.name class Meta: verbose_name = "課程子類" verbose_name_plural = "課程子類" class DegreeCourse(models.Model): """學位課程""" name = models.CharField(max_length=128, unique=True) course_img = models.CharField(max_length=255, verbose_name="縮圖") brief = models.TextField(verbose_name="學位課程簡介", ) total_scholarship = models.PositiveIntegerField(verbose_name="總獎學金(貝里)", default=40000) mentor_compensation_bonus = models.PositiveIntegerField(verbose_name="本課程的導師輔導費用(貝里)", default=15000) # 忽略,用於GenericForeignKey反向查詢， 不會生成表字段，切勿刪除 coupon = GenericRelation("Coupon") # 為了計算學位獎學金 period = models.PositiveIntegerField(verbose_name="建議學習週期(days)", default=150) prerequisite = models.TextField(verbose_name="課程先修要求", max_length=1024) teachers = models.ManyToManyField("Teacher", verbose_name="課程講師") # 忽略，用於GenericForeignKey反向查詢，不會生成表字段，切勿刪除 degreecourse_price_policy = GenericRelation("PricePolicy") def __str__(self): return self.name class Scholarship(models.Model): """學位課程獎學金""" degree_course = models.ForeignKey("DegreeCourse") time_percent = models.PositiveSmallIntegerField(verbose_name="獎勵檔位(時間百分比)", help_text="只填百分值，如80,代表80%") value = models.PositiveIntegerField(verbose_name="獎學金數額") def __str__(self): return "%s:%s" % (self.degree_course, self.value) class Course(models.Model): """課程""" name = models.CharField(max_length=128, unique=True) course_img = models.CharField(max_length=255) sub_category = models.ForeignKey("CourseSubCategory") course_type_choices = ((0, '付費'), (1, 'VIP專享'), (2, '學位課程')) course_type = models.SmallIntegerField(choices=course_type_choices) degree_course = models.ForeignKey("DegreeCourse", blank=True, null=True, help_text="若是學位課程，此處關聯學位表") brief = models.TextField(verbose_name="課程概述", max_length=2048) level_choices = ((0, '初級'), (1, '中級'), (2, '高階')) level = models.SmallIntegerField(choices=level_choices, default=1) pub_date = models.DateField(verbose_name="釋出日期", blank=True, null=True) period = models.PositiveIntegerField(verbose_name="建議學習週期(days)", default=7) order = models.IntegerField("課程順序", help_text="從上一個課程數字往後排") attachment_path = models.CharField(max_length=128, verbose_name="課件路徑", blank=True, null=True) status_choices = ((0, '上線'), (1, '下線'), (2, '預上線')) status = models.SmallIntegerField(choices=status_choices, default=0) template_id = models.SmallIntegerField("前端模板id", default=1) coupon = GenericRelation("Coupon") # 用於GenericForeignKey反向查詢，不會生成表字段，切勿刪除 price_policy = GenericRelation("PricePolicy") def __str__(self): return "%s(%s)" % (self.name, self.get_course_type_display()) def save(self, *args, **kwargs): if self.course_type == 2: if not self.degree_course: raise ValueError("學位課程必須關聯對應的學位表") super(Course, self).save(*args, **kwargs) class PricePolicy(models.Model): """價格與有課程效期表""" content_type = models.ForeignKey(ContentType) object_id = models.PositiveIntegerField() content_object = GenericForeignKey('content_type', 'object_id') valid_period_choices = ((1, '1天'), (3, '3天'), (7, '1周'), (14, '2周'), (30, '1個月'), (60, '2個月'), (90, '3個月'), (180, '6個月'), (210, '12個月'), (540, '18個月'), (720, '24個月'), ) valid_period = models.SmallIntegerField(choices=valid_period_choices) price = models.FloatField() class Meta: unique_together = ("content_type", 'object_id', "valid_period") def __str__(self): return "%s(%s)%s" % (self.content_object, self.get_valid_period_display(), self.price) class CourseDetail(models.Model): """課程詳情頁內容""" course = models.OneToOneField("Course") hours = models.IntegerField("課時") course_slogan = models.CharField(max_length=125, blank=True, null=True) video_brief_link = models.CharField(verbose_name='課程介紹', max_length=255, blank=True, null=True) why_study = models.TextField(verbose_name="為什麼學習這門課程") what_to_study_brief = models.TextField(verbose_name="我將學到哪些內容") career_improvement = models.TextField(verbose_name="此專案如何有助於我的職業生涯") prerequisite = models.TextField(verbose_name="課程先修要求", max_length=1024) recommend_courses = models.ManyToManyField("Course", related_name="recommend_by", blank=True) teachers = models.ManyToManyField("Teacher", verbose_name="課程講師") def __str__(self): return "%s" % self.course class OftenAskedQuestion(models.Model): """常見問題""" content_type = models.ForeignKey(ContentType,limit_choices_to={'model__contains': 'course'}) # 關聯course or degree_course object_id = models.PositiveIntegerField() content_object = GenericForeignKey('content_type', 'object_id') question = models.CharField(max_length=255) answer = models.TextField(max_length=1024) def __str__(self): return "%s-%s" % (self.content_object, self.question) class Meta: unique_together = ('content_type', 'object_id', 'question') class CourseOutline(models.Model): """課程大綱""" course_detail = models.ForeignKey("CourseDetail") title = models.CharField(max_length=128) # 前端顯示順序 order = models.PositiveSmallIntegerField(default=1) content = models.TextField("內容", max_length=2048) def __str__(self): return "%s" % self.title class Meta: unique_together = ('course_detail', 'title') class CourseChapter(models.Model): """課程章節""" course = models.ForeignKey("Course", related_name='coursechapters') chapter = models.SmallIntegerField(verbose_name="第幾章", default=1) name = models.CharField(max_length=128) summary = models.TextField(verbose_name="章節介紹", blank=True, null=True) pub_date = models.DateField(verbose_name="釋出日期", auto_now_add=True) class Meta: unique_together = ("course", 'chapter') def __str__(self): return "%s:(第%s章)%s" % (self.course, self.chapter, self.name) class CourseSection(models.Model): """課時目錄""" chapter = models.ForeignKey("CourseChapter", related_name='coursesections') name = models.CharField(max_length=128) order = models.PositiveSmallIntegerField(verbose_name="課時排序", help_text="建議每個課時之間空1至2個值，以備後續插入課時") section_type_choices = ((0, '文件'), (1, '練習'), (2, '視訊')) section_type = models.SmallIntegerField(default=2, choices=section_type_choices) # vid: cc視訊，唯一標識：Dfadljfosdfjlsdfjs section_link = models.CharField(max_length=255, blank=True, null=True, help_text="若是video，填vid,若是文件，填link") video_time = models.CharField(verbose_name="視訊時長", blank=True, null=True, max_length=32) # 僅在前端展示使用 pub_date = models.DateTimeField(verbose_name="釋出時間", auto_now_add=True) free_trail = models.BooleanField("是否可試看", default=False) class Meta: unique_together = ('chapter', 'section_link') def __str__(self): return "%s-%s" % (self.chapter, self.name) class Homework(models.Model): chapter = models.ForeignKey("CourseChapter") title = models.CharField(max_length=128, verbose_name="作業題目") order = models.PositiveSmallIntegerField("作業順序", help_text="同一課程的每個作業之前的order值間隔1-2個數") homework_type_choices = ((0, '作業'), (1, '模組通關考核')) homework_type = models.SmallIntegerField(choices=homework_type_choices, default=0) requirement = models.TextField(max_length=1024, verbose_name="作業需求") threshold = models.TextField(max_length=1024, verbose_name="踩分點") recommend_period = models.PositiveSmallIntegerField("推薦完成周期(天)", default=7) scholarship_value = models.PositiveSmallIntegerField("為該作業分配的獎學金(貝里)") note = models.TextField(blank=True, null=True) enabled = models.BooleanField(default=True, help_text="本作業如果後期不需要了，不想讓學員看到，可以設定為False") class Meta: unique_together = ("chapter", "title") def __str__(self): return "%s - %s" % (self.chapter, self.title) class Teacher(models.Model): """講師、導師表""" name = models.CharField(max_length=32) role_choices = ((0, '講師'), (1, '導師')) role = models.SmallIntegerField(choices=role_choices, default=0) title = models.CharField(max_length=64, verbose_name="職位、職稱") signature = models.CharField(max_length=255, help_text="導師簽名", blank=True, null=True) image = models.CharField(max_length=128) brief = models.TextField(max_length=1024) def __str__(self): return self.name # 普通課購買課程後，我的訂單中去評價。 class CourseReview(models.Model): """課程評價""" enrolled_course = models.OneToOneField("EnrolledCourse") about_teacher = models.FloatField(default=0, verbose_name="講師講解是否清晰") about_video = models.FloatField(default=0, verbose_name="內容實用") about_course = models.FloatField(default=0, verbose_name="課程內容通俗易懂") review = models.TextField(max_length=1024, verbose_name="評價") disagree_number = models.IntegerField(default=0, verbose_name="踩") agree_number = models.IntegerField(default=0, verbose_name="贊同數") date = models.DateTimeField(auto_now_add=True, verbose_name="評價日期") is_recommend = models.BooleanField("熱評推薦", default=False) hide = models.BooleanField("不在前端頁面顯示此條評價", default=False) def __str__(self): return "%s-%s" % (self.enrolled_course.course, self.review) # 學位課購買課程後，我的訂單中去天報名表，然後就程式設計去學習（以後去評價）。 class DegreeCourseReview(models.Model): """學位課程評價 為了以後可以定製單獨的評價內容，所以不與普通課程的評價混在一起，單獨建表 """ enrolled_course = models.ForeignKey("EnrolledDegreeCourse") course = models.ForeignKey("Course", verbose_name="評價學位模組", blank=True, null=True, help_text="不填寫即代表評價整個學位課程", limit_choices_to={'course_type': 2}) about_teacher = models.FloatField(default=0, verbose_name="講師講解是否清晰") about_video = models.FloatField(default=0, verbose_name="視訊質量") about_course = models.FloatField(default=0, verbose_name="課程") review = models.TextField(max_length=1024, verbose_name="評價") disagree_number = models.IntegerField(default=0, verbose_name="踩") agree_number = models.IntegerField(default=0, verbose_name="贊同數") date = models.DateTimeField(auto_now_add=True, verbose_name="評價日期") is_recommend = models.BooleanField("熱評推薦", default=False) hide = models.BooleanField("不在前端頁面顯示此條評價", default=False) def __str__(self): return "%s-%s" % (self.enrolled_course, self.review) # 購買學位課後，為每個學生每個模組會立刻生成一條學習紀錄（未開通） class StudyRecord(models.Model): """學位課程的模組學習進度 報名學位課程後，每個模組會立刻生成一條學習紀錄 """ enrolled_degree_course = models.ForeignKey("EnrolledDegreeCourse") course_module = models.ForeignKey("Course", verbose_name="學位模組", limit_choices_to={'course_type': 2}) open_date = models.DateField(blank=True, null=True, verbose_name="開通日期") end_date = models.DateField(blank=True, null=True, verbose_name="完成日期") status_choices = ((2, '在學'), (1, '未開通'), (0, '已完成')) status = models.SmallIntegerField(choices=status_choices, default=1) class Meta: unique_together = ('enrolled_degree_course', 'course_module') def __str__(self): return '%s-%s' % (self.enrolled_degree_course, self.course_module) def save(self, *args, **kwargs): if self.course_module.degree_course_id != self.enrolled_degree_course.degree_course_id: raise ValueError("學員要開通的模組必須與其報名的學位課程一致！") super(StudyRecord, self).save(*args, **kwargs) # 為學生開通一個模組 class CourseSchedule(models.Model): """課程進度計劃表,針對學位課程，每開通一個模組，就為這個學員生成這個模組的推薦學習計劃表，後面的獎懲均按此表進行""" study_record = models.ForeignKey("StudyRecord") homework = models.ForeignKey("Homework") recommend_date = models.DateField("推薦交作業日期") def __str__(self): return "%s - %s - %s " % (self.study_record, self.homework, self.recommend_date) class Meta: unique_together = ('study_record', 'homework') # 學生交作業 class HomeworkRecord(models.Model): """學員作業記錄及成績""" homework = models.ForeignKey("Homework") student = models.ForeignKey("EnrolledDegreeCourse", verbose_name="學生") score_choices = ( (100, 'A+'), (90, 'A'), (85, 'B+'), (80, 'B'), (70, 'B-'), (60, 'C+'), (50, 'C'), (40, 'C-'), (-1, 'D'), (0, 'N/A'), (-100, 'COPY'), ) score = models.SmallIntegerField(verbose_name="分數", choices=score_choices, null=True, blank=True) mentor = models.ForeignKey("Account", related_name="my_stu_homework_record", limit_choices_to={'role': 1}, verbose_name="導師") mentor_comment = models.TextField(verbose_name="導師批註", blank=True, null=True) # 導師 status_choice = ( (0, '待批改'), (1, '已通過'), (2, '不合格'), ) status = models.SmallIntegerField(verbose_name='作業狀態', choices=status_choice, default=0) submit_num = models.SmallIntegerField(verbose_name='提交次數', default=0) correct_date = models.DateTimeField('備註日期', blank=True, null=True) note = models.TextField(blank=True, null=True) date = models.DateTimeField("作業提交日期", auto_now_add=True) check_date = models.DateTimeField("批改日期", null=True, blank=True) update_time = models.DateTimeField(auto_now=True, verbose_name="提交日期") # homework_path = models.CharField(verbose_name='作業路徑', max_length=256,blank=True,null=True) 作業路徑可以動態拿到，沒必要存 reward_choice = ( (0, '新提交'), (1, '按時提交'), (2, '未按時提交'), (3, '成績已獎勵'), (4, '成績已處罰'), (5, '未作按時檢測'), ) reward_status = models.SmallIntegerField(verbose_name='作業記錄獎懲狀態', default=0) def __str__(self): return "%s %s" % (self.homework, self.student) class Meta: unique_together = ("homework", "student") # 導師跟進記錄 class StuFollowUpRecord(models.Model): """學員跟進記錄""" enrolled_degree_course = models.ForeignKey("EnrolledDegreeCourse", verbose_name="學生") mentor = models.ForeignKey("Account", related_name='mentor', limit_choices_to={'role': 1}, verbose_name="導師") followup_tool_choices = ((0, 'QQ'), (1, '微信'), (2, '電話'), (3, '系統通知')) followup_tool = models.SmallIntegerField(choices=followup_tool_choices, default=1) record = models.TextField(verbose_name="跟進記錄") attachment_path = models.CharField(max_length=128, blank=True, null=True, verbose_name="附件路徑", help_text="跟進記錄的截圖等") date = models.DateTimeField(auto_now_add=True) def __str__(self): return "%s --%s --%s" % (self.enrolled_degree_course, self.record, self.date) # ######################## 深科技 ######################## class ArticleSource(models.Model): """文章來源""" name = models.CharField(max_length=64, unique=True) def __str__(self): return self.name class Article(models.Model): """文章資訊""" title = models.CharField(max_length=255, unique=True, db_index=True, verbose_name="標題") source = models.ForeignKey("ArticleSource", verbose_name="來源") article_type_choices = ((0, '資訊'), (1, '視訊')) article_type = models.SmallIntegerField(choices=article_type_choices, default=0) brief = models.TextField(max_length=512, verbose_name="摘要") head_img = models.CharField(max_length=255) content = models.TextField(verbose_name="文章正文") pub_date = models.DateTimeField(verbose_name="上架日期") offline_date = models.DateTimeField(verbose_name="下架日期") status_choices = ((0, '線上'), (1, '下線')) status = models.SmallIntegerField(choices=status_choices, default=0, verbose_name="狀態") order = models.SmallIntegerField(default=0, verbose_name="權重", help_text="文章想置頂，可以把數字調大，不要超過1000") vid = models.CharField(max_length=128, verbose_name="視訊VID", help_text="文章型別是視訊, 則需要新增視訊VID", blank=True, null=True) comment_num = models.SmallIntegerField(default=0, verbose_name="評論數") agree_num = models.SmallIntegerField(default=0, verbose_name="點贊數") view_num = models.SmallIntegerField(default=0, verbose_name="觀看數") collect_num = models.SmallIntegerField(default=0, verbose_name="收藏數") # tags = models.ManyToManyField("Tags", blank=True, verbose_name="標籤") date = models.DateTimeField(auto_now_add=True, verbose_name="建立日期") position_choices = ((0, '資訊流'), (1, 'banner大圖'), (2, 'banner小圖')) position = models.SmallIntegerField(choices=position_choices, default=0, verbose_name="位置") # comment = GenericRelation("Comment") # 用於GenericForeignKey反向查詢， 不會生成表字段，切勿刪除，如有疑問請聯絡老村長 def __str__(self): return "%s-%s" % (self.source, self.title) class Collection(models.Model): """收藏""" content_type = models.ForeignKey(ContentType) object_id = models.PositiveIntegerField() content_object = GenericForeignKey('content_type', 'object_id') account = models.ForeignKey("Account") date = models.DateTimeField(auto_now_add=True) class Meta: unique_together = ('content_type', 'object_id', 'account') class Comment(models.Model): """通用的評論表""" # content_type = models.ForeignKey(ContentType, blank=True, null=True, verbose_name="型別") # object_id = models.PositiveIntegerField(blank=True, null=True) # content_object = GenericForeignKey('content_type', 'object_id') # FK(Article) article = models.ForeignKey('Article') p_node = models.ForeignKey("self", blank=True, null=True, verbose_name="父級評論") content = models.TextField(max_length=1024) account = models.ForeignKey("Account", verbose_name="會員名") disagree_number = models.IntegerField(default=0, verbose_name="踩") agree_number = models.IntegerField(default=0, verbose_name="贊同數") date = models.DateTimeField(auto_now_add=True) def __str__(self): return self.content # ######################## 購買課程相關 ######################## class EnrolledCourse(models.Model): """已報名課程,不包括學位課程""" account = models.ForeignKey("Account") course = models.ForeignKey("Course", limit_choices_to=~Q(course_type=2)) enrolled_date = models.DateTimeField(auto_now_add=True) valid_begin_date = models.DateField(verbose_name="有效期開始自") valid_end_date = models.DateField(verbose_name="有效期結束至") status_choices = ((0, '已開通'), (1, '已過期')) status = models.SmallIntegerField(choices=status_choices, default=0) order_detail = models.OneToOneField("OrderDetail") # 使訂單購買後支援 課程評價 # order = models.ForeignKey("Order",blank=True,null=True) def __str__(self): return "%s:%s" % (self.account, self.course) class DegreeRegistrationForm(models.Model): """學位課程報名表""" enrolled_degree = models.OneToOneField("EnrolledDegreeCourse") current_company = models.CharField(max_length=64, ) current_position = models.CharField(max_length=64, ) current_salary = models.IntegerField() work_experience_choices = ( (0, "應屆生"), (1, "1年"), (2, "2年"), (3, "3年"), (4, "4年"), (5, "5年"), (6, "6年"), (7, "7年"), (8, "8年"), (9, "9年"), (10, "10年"), (11, "超過10年"), ) work_experience = models.IntegerField() open_module = models.BooleanField("是否開通第1模組", default=True) stu_specified_mentor = models.CharField("學員自行指定的導師名", max_length=32, blank=True, null=True) study_plan_choices = ((0, "1-2小時/天"), (1, "2-3小時/天"), (2, "3-5小時/天"), (3, "5小時+/天"), ) study_plan = models.SmallIntegerField(choices=study_plan_choices, default=1) why_take_this_course = models.TextField("報此課程原因", max_length=1024) why_choose_us = models.TextField("為何選路飛", max_length=1024) your_expectation = models.TextField("你的期待", max_length=1024) memo = models.CharField(max_length=255, blank=True, null=True) def __str__(self): return "%s" % self.enrolled_degree class EnrolledDegreeCourse(models.Model): """已報名的學位課程""" account = models.ForeignKey("Account") degree_course = models.ForeignKey("DegreeCourse") enrolled_date = models.DateTimeField(auto_now_add=True) valid_begin_date = models.DateField(verbose_name="有效期開始自", blank=True, null=True) # 開通第一個模組時，再新增課程有效期，2年 valid_end_date = models.DateField(verbose_name="有效期結束至", blank=True, null=True) status_choices = ( (0, '在學中'), (1, '休學中'), (2, '已畢業'), (3, '超時結業'), (4, '未開始'), # (3, '其它'), ) study_status = models.SmallIntegerField(choices=status_choices, default=0) mentor = models.ForeignKey("Account", verbose_name="導師", related_name='my_students', blank=True, null=True, limit_choices_to={'role': 1}) mentor_fee_balance = models.PositiveIntegerField("導師費用餘額", help_text="這個學員的導師費用，每有懲罰，需在此欄位同時扣除") order_detail = models.OneToOneField("OrderDetail") # 使訂單購買後支援填寫報名表 def __str__(self): return "%s:%s" % (self.account, self.degree_course) class Meta: unique_together = ('account', 'degree_course') class Coupon(models.Model): """優惠券生成規則""" name = models.CharField(max_length=64, verbose_name="活動名稱") brief = models.TextField(blank=True, null=True, verbose_name="優惠券介紹") coupon_type_choices = ((0, '通用券'), (1, '滿減券'), (2, '折扣券')) coupon_type = models.SmallIntegerField(choices=coupon_type_choices, default=0, verbose_name="券型別") money_equivalent_value = models.IntegerField(verbose_name="等值貨幣") off_percent = models.PositiveSmallIntegerField("折扣百分比", help_text="只針對折扣券，例7.9折，寫79", blank=True, null=True) minimum_consume = models.PositiveIntegerField("最低消費", default=0, help_text="僅在滿減券時填寫此欄位") content_type = models.ForeignKey(ContentType, blank=True, null=True) object_id = models.PositiveIntegerField("繫結課程", blank=True, null=True, help_text="可以把優惠券跟課程繫結") content_object = GenericForeignKey('content_type', 'object_id') quantity = models.PositiveIntegerField("數量(張)", default=1) open_date = models.DateField("優惠券領取開始時間") close_date = models.DateField("優惠券領取結束時間") valid_begin_date = models.DateField(verbose_name="有效期開始時間", blank=True, null=True) valid_end_date = models.DateField(verbose_name="有效結束時間", blank=True, null=True) coupon_valid_days = models.PositiveIntegerField(verbose_name="優惠券有效期（天）", blank=True, null=True, help_text="自券被領時開始算起") date = models.DateTimeField(auto_now_add=True) def __str__(self): return "%s(%s)" % (self.get_coupon_type_display(), self.name) def save(self, *args, **kwargs): if not self.coupon_valid_days or (self.valid_begin_date and self.valid_end_date): if self.valid_begin_date and self.valid_end_date: if self.valid_end_date <= self.valid_begin_date: raise ValueError("valid_end_date 有效期結束日期必須晚於 valid_begin_date ") if self.coupon_valid_days == 0: raise ValueError("coupon_valid_days 有效期不能為0") if self.close_date < self.open_date: raise ValueError("close_date 優惠券領取結束時間必須晚於 open_date優惠券領取開始時間 ") super(Coupon, self).save(*args, **kwargs) class CouponRecord(models.Model): """優惠券發放、消費紀錄""" coupon = models.ForeignKey("Coupon") # number = models.CharField(max_length=64, unique=True) account = models.ForeignKey("Account", verbose_name="擁有者") status_choices = ((0, '未使用'), (1, '已使用'), (2, '已過期'),) status = models.SmallIntegerField(choices=status_choices, default=0) get_time = models.DateTimeField(verbose_name="領取時間", help_text="使用者領取時間") used_time = models.DateTimeField(blank=True, null=True, verbose_name="使用時間") order = models.ForeignKey("Order", blank=True, null=True, verbose_name="關聯訂單") # 一個訂單可以有多個優惠券 class Order(models.Model): """訂單""" payment_type_choices = ((0, '微信'), (1, '支付寶'), (2, '優惠碼'), (3, '貝里')) payment_type = models.SmallIntegerField(choices=payment_type_choices) payment_number = models.CharField(max_length=128, verbose_name="支付第3方訂單號", null=True, blank=True) order_number = models.CharField(max_length=128, verbose_name="訂單號", unique=True) # 考慮到訂單合併支付的問題 account = models.ForeignKey("Account") actual_amount = models.FloatField(verbose_name="實付金額") status_choices = ((0, '交易成功'), (1, '待支付'), (2, '退費申請中'), (3, '已退費'), (4, '主動取消'), (5, '超時取消')) status = models.SmallIntegerField(choices=status_choices, verbose_name="狀態") date = models.DateTimeField(auto_now_add=True, verbose_name="訂單生成時間") pay_time = models.DateTimeField(blank=True, null=True, verbose_name="付款時間") cancel_time = models.DateTimeField(blank=True, null=True, verbose_name="訂單取消時間") def __str__(self): return "%s" % self.order_number class OrderDetail(models.Model): """訂單詳情""" order = models.ForeignKey("Order") content_type = models.ForeignKey(ContentType) # 可關聯普通課程或學位 object_id = models.PositiveIntegerField() content_object = GenericForeignKey('content_type', 'object_id') original_price = models.FloatField("課程原價") price = models.FloatField("折後價格") content = models.CharField(max_length=255, blank=True, null=True) # ？ valid_period_display = models.CharField("有效期顯示", max_length=32) # 在訂單頁顯示 valid_period = models.PositiveIntegerField("有效期(days)") # 課程有效期 memo = models.CharField(max_length=255, blank=True, null=True) # def __str__(self): # return "%s - %s - %s" % (self.order, self.content_type, self.price) class Meta: # unique_together = ("order", 'course') unique_together = ("order", 'content_type', 'object_id') class TransactionRecord(models.Model): """貝里交易紀錄""" account = models.ForeignKey("Account") amount = models.Int