关于redis缓存购物车及结算中心
models.py
from django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation from django.contrib.contenttypes.models import ContentType from django.db.models import Q from django.db import models # ########################### 1.课程相关 ################################ class CourseCategory(models.Model): """课程大类, e.g 前端 后端...""" name = models.CharField(max_length=64, unique=True) def __str__(self): return "%s" % self.name class Meta: verbose_name_plural = "01.课程大类" class CourseSubCategory(models.Model): """课程子类, 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_plural = "02.课程子类" class DegreeCourse(models.Model): """学位课程""" name = models.CharField(max_length=128, unique=True) course_img = models.CharField(max_length=255, verbose_name="缩略图") brief = models.TextField(verbose_name="学位课程简介", ) total_scholarship = models.PositiveIntegerField(verbose_name="总奖学金(贝里)", default=40000) mentor_compensation_bonus = models.PositiveIntegerField(verbose_name="本课程的导师辅导费用(贝里)", default=15000) period = models.PositiveIntegerField(verbose_name="建议学习周期(days)", default=150) # 为了计算学位奖学金 prerequisite = models.TextField(verbose_name="课程先修要求", max_length=1024) teachers = models.ManyToManyField("Teacher", verbose_name="课程讲师") # 用于GenericForeignKey反向查询， 不会生成表字段，切勿删除 coupon = GenericRelation("Coupon") # 用于GenericForeignKey反向查询，不会生成表字段，切勿删除 degreecourse_price_policy = GenericRelation("PricePolicy") # 查询常见问题 asked_question = GenericRelation("OftenAskedQuestion") def __str__(self): return self.name class Meta: verbose_name_plural = "03.学位课" class Teacher(models.Model): """讲师、导师表""" name = models.CharField(max_length=32) role_choices = ((0, '讲师'), (1, '导师')) role = models.SmallIntegerField(choices=role_choices, default=0) title = models.CharField(max_length=64, verbose_name="职位、职称") signature = models.CharField(max_length=255, help_text="导师签名", blank=True, null=True) image = models.CharField(max_length=128) brief = models.TextField(max_length=1024) def __str__(self): return self.name class Meta: verbose_name_plural = "04.导师或讲师" class Scholarship(models.Model): """学位课程奖学金""" degree_course = models.ForeignKey("DegreeCourse") time_percent = models.PositiveSmallIntegerField(verbose_name="奖励档位(时间百分比)", help_text="只填百分值，如80,代表80%") value = models.PositiveIntegerField(verbose_name="奖学金数额") def __str__(self): return "%s:%s" % (self.degree_course, self.value) class Meta: verbose_name_plural = "05.学位课奖学金" class Course(models.Model): """专题课程 OR 学位课模块""" name = models.CharField(max_length=128, unique=True) # Python基础 course_img = models.CharField(max_length=255) sub_category = models.ForeignKey("CourseSubCategory") # course_type_choices = ((0, '付费'), (1, 'VIP专享'), (2, '学位课程')) course_type = models.SmallIntegerField(choices=course_type_choices) degree_course = models.ForeignKey("DegreeCourse", blank=True, null=True, help_text="若是学位课程，此处关联学位表") brief = models.TextField(verbose_name="课程（模块）概述", max_length=2048) level_choices = ((0, '初级'), (1, '中级'), (2, '高级')) level = models.SmallIntegerField(choices=level_choices, default=1) pub_date = models.DateField(verbose_name="发布日期", blank=True, null=True) period = models.PositiveIntegerField(verbose_name="建议学习周期(days)", default=7) order = models.IntegerField("课程顺序", help_text="从上一个课程数字往后排") attachment_path = models.CharField(max_length=128, verbose_name="课件路径", blank=True, null=True) status_choices = ((0, '上线'), (1, '下线'), (2, '预上线')) status = models.SmallIntegerField(choices=status_choices, default=0) template_id = models.SmallIntegerField("前端模板id", default=1) # 如果是专题课时，获取相关优惠券 coupon = GenericRelation("Coupon") # 用于GenericForeignKey反向查询，不会生成表字段，切勿删除 price_policy = GenericRelation("PricePolicy") # 查询常见问题 asked_question = GenericRelation("OftenAskedQuestion") class Meta: verbose_name_plural = "06.专题课或学位课模块" class CourseDetail(models.Model): """课程详情页内容""" course = models.OneToOneField("Course") hours = models.IntegerField("课时") course_slogan = models.CharField(max_length=125, blank=True, null=True) video_brief_link = models.CharField(verbose_name='课程介绍', max_length=255, blank=True, null=True) why_study = models.TextField(verbose_name="为什么学习这门课程") what_to_study_brief = models.TextField(verbose_name="我将学到哪些内容") career_improvement = models.TextField(verbose_name="此项目如何有助于我的职业生涯") prerequisite = models.TextField(verbose_name="课程先修要求", max_length=1024) recommend_courses = models.ManyToManyField("Course", related_name="recommend_by", blank=True) teachers = models.ManyToManyField("Teacher", verbose_name="课程讲师") def __str__(self): return "%s" % self.course class Meta: verbose_name_plural = "07.课程或学位模块详细" class OftenAskedQuestion(models.Model): """常见问题""" content_type = models.ForeignKey(ContentType) # 关联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') verbose_name_plural = "08. 常见问题" class CourseOutline(models.Model): """课程大纲""" course_detail = models.ForeignKey("CourseDetail") # 前端显示顺序 order = models.PositiveSmallIntegerField(default=1) title = models.CharField(max_length=128) content = models.TextField("内容", max_length=2048) def __str__(self): return "%s" % self.title class Meta: unique_together = ('course_detail', 'title') verbose_name_plural = "09. 课程大纲" class CourseChapter(models.Model): """课程章节""" course = models.ForeignKey("Course", related_name='coursechapters') chapter = models.SmallIntegerField(verbose_name="第几章", default=1) name = models.CharField(max_length=128) summary = models.TextField(verbose_name="章节介绍", blank=True, null=True) pub_date = models.DateField(verbose_name="发布日期", auto_now_add=True) class Meta: unique_together = ("course", 'chapter') verbose_name_plural = "10. 课程章节" def __str__(self): return "%s:(第%s章)%s" % (self.course, self.chapter, self.name) class CourseSection(models.Model): """课时目录""" chapter = models.ForeignKey("CourseChapter", related_name='coursesections') name = models.CharField(max_length=128) order = models.PositiveSmallIntegerField(verbose_name="课时排序", help_text="建议每个课时之间空1至2个值，以备后续插入课时") section_type_choices = ((0, '文档'), (1, '练习'), (2, '视频')) section_type = models.SmallIntegerField(default=2, choices=section_type_choices) section_link = models.CharField(max_length=255, blank=True, null=True, help_text="若是video，填vid,若是文档，填link") video_time = models.CharField(verbose_name="视频时长", blank=True, null=True, max_length=32) # 仅在前端展示使用 pub_date = models.DateTimeField(verbose_name="发布时间", auto_now_add=True) free_trail = models.BooleanField("是否可试看", default=False) class Meta: unique_together = ('chapter', 'section_link') verbose_name_plural = "11. 课时" 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="作业题目") order = models.PositiveSmallIntegerField("作业顺序", help_text="同一课程的每个作业之前的order值间隔1-2个数") homework_type_choices = ((0, '作业'), (1, '模块通关考核')) homework_type = models.SmallIntegerField(choices=homework_type_choices, default=0) requirement = models.TextField(max_length=1024, verbose_name="作业需求") threshold = models.TextField(max_length=1024, verbose_name="踩分点") recommend_period = models.PositiveSmallIntegerField("推荐完成周期(天)", default=7) scholarship_value = models.PositiveSmallIntegerField("为该作业分配的奖学金(贝里)") note = models.TextField(blank=True, null=True) enabled = models.BooleanField(default=True, help_text="本作业如果后期不需要了，不想让学员看到，可以设置为False") class Meta: unique_together = ("chapter", "title") verbose_name_plural = "12. 章节作业" def __str__(self): return "%s - %s" % (self.chapter, self.title) class CourseReview(models.Model): """课程评价""" enrolled_course = models.OneToOneField("EnrolledCourse") about_teacher = models.FloatField(default=0, verbose_name="讲师讲解是否清晰") about_video = models.FloatField(default=0, verbose_name="内容实用") about_course = models.FloatField(default=0, verbose_name="课程内容通俗易懂") review = models.TextField(max_length=1024, verbose_name="评价") disagree_number = models.IntegerField(default=0, verbose_name="踩") agree_number = models.IntegerField(default=0, verbose_name="赞同数") date = models.DateTimeField(auto_now_add=True, verbose_name="评价日期") is_recommend = models.BooleanField("热评推荐", default=False) hide = models.BooleanField("不在前端页面显示此条评价", default=False) def __str__(self): return "%s-%s" % (self.enrolled_course.course, self.review) class Meta: verbose_name_plural = "13. 课程评价（购买课程后才能评价）" class DegreeCourseReview(models.Model): """学位课程评价 为了以后可以定制单独的评价内容，所以不与普通课程的评价混在一起，单独建表 """ enrolled_course = models.ForeignKey("EnrolledDegreeCourse") course = models.ForeignKey("Course", verbose_name="评价学位模块", blank=True, null=True, help_text="不填写即代表评价整个学位课程", limit_choices_to={'course_type': 2}) about_teacher = models.FloatField(default=0, verbose_name="讲师讲解是否清晰") about_video = models.FloatField(default=0, verbose_name="视频质量") about_course = models.FloatField(default=0, verbose_name="课程") review = models.TextField(max_length=1024, verbose_name="评价") disagree_number = models.IntegerField(default=0, verbose_name="踩") agree_number = models.IntegerField(default=0, verbose_name="赞同数") date = models.DateTimeField(auto_now_add=True, verbose_name="评价日期") is_recommend = models.BooleanField("热评推荐", default=False) hide = models.BooleanField("不在前端页面显示此条评价", default=False) def __str__(self): return "%s-%s" % (self.enrolled_course, self.review) class Meta: verbose_name_plural = "14. 学位课评价（购买课程后才能评价）" class PricePolicy(models.Model): """价格与有课程效期表""" content_type = models.ForeignKey(ContentType) # 关联course or degree_course 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个月'), (60, '2个月'), (90, '3个月'), (180, '6个月'), (210, '12个月'), (540, '18个月'), (720, '24个月'), ) valid_period = models.SmallIntegerField(choices=valid_period_choices) price = models.FloatField() class Meta: unique_together = ("content_type", 'object_id', "valid_period") verbose_name_plural = "15. 价格策略" def __str__(self): return "%s(%s)%s" % (self.content_object, self.get_valid_period_display(), self.price) # ########################### 2. 深科技相关 ################################ class ArticleSource(models.Model): """文章来源""" name = models.CharField(max_length=64, unique=True) class Meta: verbose_name_plural = "16. 文章来源" def __str__(self): return self.name class Article(models.Model): """文章资讯""" title = models.CharField(max_length=255, unique=True, db_index=True, verbose_name="标题") source = models.ForeignKey("ArticleSource", verbose_name="来源") article_type_choices = ((0, '资讯'), (1, '视频')) 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, '在线'), (1, '下线')) status = models.SmallIntegerField(choices=status_choices, default=0, verbose_name="状态") order = models.SmallIntegerField(default=0, verbose_name="权重", help_text="文章想置顶，可以把数字调大，不要超过1000") vid = models.CharField(max_length=128, verbose_name="视频VID", help_text="文章类型是视频, 则需要添加视频VID", blank=True, null=True) comment_num = models.SmallIntegerField(default=0, verbose_name="评论数") agree_num = models.SmallIntegerField(default=0, verbose_name="点赞数") view_num = models.SmallIntegerField(default=0, verbose_name="观看数") collect_num = models.SmallIntegerField(default=0, verbose_name="收藏数") date = models.DateTimeField(auto_now_add=True, verbose_name="创建日期") position_choices = ((0, '信息流'), (1, 'banner大图'), (2, 'banner小图')) position = models.SmallIntegerField(choices=position_choices, default=0, verbose_name="位置") class Meta: verbose_name_plural = "17. 文章" 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') verbose_name_plural = "18. 通用收藏表" class Comment(models.Model): """通用的评论表""" content_type = models.ForeignKey(ContentType, blank=True, null=True, verbose_name="类型") object_id = models.PositiveIntegerField(blank=True, null=True) content_object = GenericForeignKey('content_type', 'object_id') p_node = models.ForeignKey("self", blank=True, null=True, verbose_name="父级评论") content = models.TextField(max_length=1024) account = models.ForeignKey("Account", verbose_name="会员名") disagree_number = models.IntegerField(default=0, verbose_name="踩") agree_number = models.IntegerField(default=0, verbose_name="赞同数") date = models.DateTimeField(auto_now_add=True) def __str__(self): return self.content class Meta: verbose_name_plural = "19. 通用评论表" # ########################### 3. 用户相关 ################################ class Account(models.Model): username = models.CharField("用户名", max_length=64, unique=True) password = models.CharField("密码", max_length=64) uid = models.CharField(max_length=64, unique=True, help_text='微信用户绑定和CC视频统计') # 与第3方交互用户信息时，用这个uid,以避免泄露敏感用户信息 openid = models.CharField(max_length=128, blank=True, null=True) # 贝里余额 balance = models.PositiveIntegerField(default=0, verbose_name="可提现和使用余额") class UserAuthToken(models.Model): """ 用户Token表 """ user = models.OneToOneField(to="Account") token = models.CharField(max_length=64, unique=True) # ########################### 4. 奖惩相关 ################################ class ScoreRule(models.Model): """积分规则""" score_rule_choices = ( (0, '未按时交作业'), (1, '未及时批改作业'), (2, '作业成绩'), (3, '未在规定时间内对学员进行跟进'), (4, '未在规定时间内回复学员问题'), (5, '收到学员投诉'), (6, '导师相关'), (7, '学位奖学金'), ) rule = models.SmallIntegerField(choices=score_rule_choices, verbose_name="积分规则") score_type_choices = ((0, '奖励'), (1, '惩罚'), (2, '初始分配')) score_type = models.SmallIntegerField(choices=score_type_choices, verbose_name="奖惩", default=0) score = models.IntegerField(help_text="扣分数与贝里相等,若为0则代表规则的值可以从别处取得") # maturity_days = models.IntegerField("成熟周期", help_text="自纪录创建时开始计算") memo = models.TextField(blank=True, null=True) def __str__(self): return "%s-%s:%s" % (self.get_rule_display(), self.get_score_type_display(), self.score) class Meta: unique_together = ('rule', 'score_type') verbose_name_plural = "29. 奖惩规则" class ScoreRecord(models.Model): """积分奖惩记录""" content_type = models.ForeignKey(ContentType, blank=True, null=True) object_id = models.PositiveIntegerField(blank=True, null=True) content_object = GenericForeignKey('content_type', 'object_id') degree_course = models.ForeignKey("DegreeCourse", blank=True, null=True, verbose_name="关联学位课程") score_rule = models.ForeignKey("ScoreRule", verbose_name="关联规则") account = models.ForeignKey("Account", verbose_name="被执行人") score = models.IntegerField(verbose_name="金额(贝里)") # 这里单独有一个字段存积分而不是从score_rule里引用的原因是考虑到如果引用的话， # 一旦score_rule里的积分有变更，那么所有用户的历史积分也会被影响 received_score = models.IntegerField("实际到账金额贝里)", help_text="仅奖励用", default=0) balance = models.PositiveIntegerField(verbose_name="奖金余额(贝里)") maturity_date = models.DateField("成熟日期(可提现日期)") applied = models.BooleanField(default=False, help_text="奖赏纪录是否已被执行", verbose_name="是否已被执行") applied_date = models.DateTimeField(blank=True, null=True, verbose_name="事件生效日期") date = models.DateTimeField(auto_now_add=True, verbose_name="事件触发日期") memo = models.TextField(blank=True, null=True) def __str__(self): return "%s-%s - %s - %s 奖金余额:%s" % (self.id, self.score_rule, self.account, self.score, self.balance) class Meta: verbose_name_plural = "30. 奖惩记录" # ########################### 5. 支付相关 ################################ class Coupon(models.Model): """优惠券生成规则""" name = models.CharField(max_length=64, verbose_name="活动名称") brief = models.TextField(blank=True, null=True, verbose_name="优惠券介绍") coupon_type_choices = ((0, '立减券'), (1, '满减券'), (2, '折扣券')) coupon_type = models.SmallIntegerField(choices=coupon_type_choices, default=0, verbose_name="券类型") money_equivalent_value = models.IntegerField(verbose_name="等值货币") off_percent = models.PositiveSmallIntegerField("折扣百分比", help_text="只针对折扣券，例7.9折，写79", blank=True, null=True) minimum_consume = models.PositiveIntegerField("最低消费", default=0, help_text="仅在满减券时填写此字段") content_type = models.ForeignKey(ContentType, blank=True, null=True) object_id = models.PositiveIntegerField("绑定课程", blank=True, null=True, help_text="可以把优惠券跟课程绑定") content_object = GenericForeignKey('content_type', 'object_id') quantity = models.PositiveIntegerField("数量(张)", default=1) open_date = models.DateField("优惠券领取开始时间") close_date = models.DateField("优惠券领取结束时间") valid_begin_date = models.DateField(verbose_name="有效期开始时间", blank=True, null=True) valid_end_date = models.DateField(verbose_name="有效结束时间", blank=True, null=True) coupon_valid_days = models.PositiveIntegerField(verbose_name="优惠券有效期（天）", blank=True, null=True, help_text="自券被领时开始算起") date = models.DateTimeField(auto_now_add=True) class Meta: verbose_name_plural = "31. 优惠券生成记录" 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 有效期结束日期必须晚于 valid_begin_date ") if self.coupon_valid_days == 0: raise ValueError("coupon_valid_days 有效期不能为0") if self.close_date < self.open_date: raise ValueError("close_date 优惠券领取结束时间必须晚于 open_date优惠券领取开始时间 ") super(Coupon, self).save(*args, **kwargs) class CouponRecord(models.Model): """优惠券发放、消费纪录""" coupon = models.ForeignKey("Coupon") number = models.CharField(max_length=64, unique=True) account = models.ForeignKey("Account", verbose_name="拥有者") status_choices = ((0, '未使用'), (1, '已使用'), (2, '已过期')) status = models.SmallIntegerField(choices=status_choices, default=0) get_time = models.DateTimeField(verbose_name="领取时间", help_text="用户领取时间") used_time = models.DateTimeField(blank=True, null=True, verbose_name="使用时间") class Meta: verbose_name_plural = "32. 用户优惠券" def __str__(self): return '%s-%s-%s' % (self.account, self.number, self.status) class CourseSchedule(models.Model): """课程进度计划表,针对学位课程，每开通一个模块，就为这个学员生成这个模块的推荐学习计划表，后面的奖惩均按此表进行""" study_record = models.ForeignKey("StudyRecord") homework = models.ForeignKey("Homework") recommend_date = models.DateField("推荐交作业日期") def __str__(self): return "%s - %s - %s " % (self.study_record, self.homework, self.recommend_date) class Meta: unique_together = ('study_record', 'homework') verbose_name_plural = "33. 课程模块计划表（学位课）" class EnrolledCourse(models.Model): """已报名课程,不包括学位课程""" 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="有效期开始自") valid_end_date = models.DateField(verbose_name="有效期结束至") status_choices = ((0, '已开通'), (1, '已过期')) status = models.SmallIntegerField(choices=status_choices, default=0) order_detail = models.OneToOneField("OrderDetail") # 使订单购买后支持 课程评价 def __str__(self): return "%s:%s" % (self.account, self.course) class Meta: verbose_name_plural = "34. 报名专题课" class DegreeRegistrationForm(models.Model): """学位课程报名表""" 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, "应届生"), (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, "超过10年"), ) work_experience = models.IntegerField() open_module = models.BooleanField("是否开通第1模块", default=True) stu_specified_mentor = models.CharField("学员自行指定的导师名", max_length=32, blank=True, null=True) study_plan_choices = ((0, "1-2小时/天"), (1, "2-3小时/天"), (2, "3-5小时/天"), (3, "5小时+/天"), ) study_plan = models.SmallIntegerField(choices=study_plan_choices, default=1) why_take_this_course = models.TextField("报此课程原因", max_length=1024) why_choose_us = models.TextField("为何选路飞", max_length=1024) your_expectation = models.TextField("你的期待", max_length=1024) memo = models.CharField(max_length=255, blank=True, null=True) class Meta: verbose_name_plural = "35. 报名表（学位课）" def __str__(self): return "%s" % self.enrolled_degree class EnrolledDegreeCourse(models.Model): """已报名的学位课程""" account = models.ForeignKey("Account") degree_course = models.ForeignKey("DegreeCourse") enrolled_date = models.DateTimeField(auto_now_add=True) valid_begin_date = models.DateField(verbose_name="有效期开始自", blank=True, null=True) # 开通第一个模块时，再添加课程有效期，2年 valid_end_date = models.DateField(verbose_name="有效期结束至", blank=True, null=True) status_choices = ( (0, '在学中'), (1, '休学中'), (2, '已毕业'), (3, '超时结业'), (4, '未开始'), # (3, '其它'), ) study_status = models.SmallIntegerField(choices=status_choices, default=0) mentor = models.ForeignKey("Account", verbose_name="导师", related_name='my_students', blank=True, null=True, limit_choices_to={'role': 1}) mentor_fee_balance = models.PositiveIntegerField("导师费用余额", help_text="这个学员的导师费用，每有惩罚，需在此字段同时扣除") order_detail = models.OneToOneField("OrderDetail") # 使订单购买后支持填写报名表 def __str__(self): return "%s:%s" % (self.account, self.degree_course) class Meta: unique_together = ('account', 'degree_course') verbose_name_plural = "36. 报名学位课" class Order(models.Model): """订单""" payment_type_choices = ((0, '微信'), (1, '支付宝'), (2, '优惠码'), (3, '贝里')) payment_type = models.SmallIntegerField(choices=payment_type_choices) payment_number = models.CharField(max_length=128, verbose_name="支付第3方订单号", null=True, blank=True) order_number = models.CharField(max_length=128, verbose_name="订单号", unique=True) # 考虑到订单合并支付的问题 account = models.ForeignKey("Account") actual_amount = models.FloatField(verbose_name="实付金额") status_choices = ((0, '交易成功'), (1, '待支付'), (2, '退费申请中'), (3, '已退费'), (4, '主动取消'), (5, '超时取消')) status = models.SmallIntegerField(choices=status_choices, verbose_name="状态") date = models.DateTimeField(auto_now_add=True, verbose_name="订单生成时间") pay_time = models.DateTimeField(blank=True, null=True, verbose_name="付款时间") cancel_time = models.DateTimeField(blank=True, null=True, verbose_name="订单取消时间") class Meta: verbose_name_plural = "37. 订单表" def __str__(self): return "%s" % self.order_number class OrderDetail(models.Model): """订单详情""" order = models.ForeignKey("Order") content_type = models.ForeignKey(ContentType) # 可关联普通课程或学位 object_id = models.PositiveIntegerField() content_object = GenericForeignKey('content_type', 'object_id') original_price = models.FloatField("课程原价") price = models.FloatField("折后价格") content = models.CharField(max_length=255, blank=True, null=True) # ？ valid_period_display = models.CharField("有效期显示", max_length=32) # 在订单页显示 valid_period = models.PositiveIntegerField("有效期(days)") # 课程有效期 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: verbose_name_plural = "38. 订单详细" unique_together = ("order", 'content_type', 'object_id') class StudyRecord(models.Model): """学位课程的模块学习进度，报名学位课程后，每个模块会立刻生成一条学习纪录""" enrolled_degree_course = models.ForeignKey("EnrolledDegreeCourse") course_module = models.ForeignKey("Course", verbose_name="学位模块", limit_choices_to={'course_type': 2}) open_date = models.DateField(blank=True, null=True, verbose_name="开通日期") end_date = models.DateField(blank=True, null=True, verbose_name="完成日期") status_choices = ((2, '在学'), (1, '未开通'), (0, '已完成')) status = models.SmallIntegerField(choices=status_choices, default=1) class Meta: verbose_name_plural = "39. 学习记录表（报名学位课程后，每个模块会立刻生成一条学习纪录）" 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("学员要开通的模块必须与其报名的学位课程一致！") super(StudyRecord, self).save(*args, **kwargs) class TransactionRecord(models.Model): """贝里交易纪录""" account = models.ForeignKey("Account") amount = models.IntegerField("金额") balance = models.IntegerField("账户余额") transaction_type_choices = ((0, '收入'), (1, '支出'), (2, '退款'), (3, "提现")) # 2 为了处理 订单过期未支付时，锁定期贝里的回退 transaction_type = models.SmallIntegerField(choices=transaction_type_choices) content_type = models.ForeignKey(ContentType, blank=True, null=True) object_id = models.PositiveIntegerField(blank=True, null=True, verbose_name="关联对象") content_object = GenericForeignKey('content_type', 'object_id') transaction_number = models.CharField(unique=True, verbose_name="流水号", max_length=128) date = models.DateTimeField(auto_now_add=True) memo = models.CharField(max_length=128, blank=True, null=True) class Meta: verbose_name_plural = "40. 贝里交易记录" def __str__(self): return "%s" % self.transaction_number class HomeworkRecord(models.Model): """学员作业记录及成绩""" homework = models.ForeignKey("Homework") student = models.ForeignKey("EnrolledDegreeCourse", verbose_name="学生") 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="分数", choices=score_choices, null=True, blank=True) mentor = models.ForeignKey("Account", related_name="my_stu_homework_record", limit_choices_to={'role': 1}, verbose_name="导师") mentor_comment = models.TextField(verbose_name="导师批注", blank=True, null=True) # 导师 status_choice = ( (0, '待批改'), (1, '已通过'), (2, '不合格'), ) status = models.SmallIntegerField(verbose_name='作业状态', choices=status_choice, default=0) submit_num = models.SmallIntegerField(verbose_name='提交次数', default=0) correct_date = models.DateTimeField('备注日期', blank=True, null=True) note = models.TextField(blank=True, null=True) date = models.DateTimeField("作业提交日期", 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") reward_choice = ((0, '新提交'), (1, '按时提交'), (2, '未按时提交'), (3, '成绩已奖励'), (4, '成绩已处罚'), (5, '未作按时检测'), ) reward_status = models.SmallIntegerField(verbose_name='作业记录奖惩状态', default=0) def __str__(self): return "%s %s" % (self.homework, self.student) class Meta: verbose_name_plural = "41. 作业" unique_together = ("homework", "student") class StuFollowUpRecord(models.Model): """学员跟进记录""" enrolled_degree_course = models.ForeignKey("EnrolledDegreeCourse", verbose_name="学生") mentor = models.ForeignKey("Account", related_name='mentor', limit_choices_to={'role': 1}, verbose_name="导师") followup_tool_choices = ((0, 'QQ'), (1, '微信'), (2, '电话'), (3, '系统通知')) followup_tool = models.SmallIntegerField(choices=followup_tool_choices, default=1) record = models.TextField(verbose_name="跟进记录") attachment_path = models.CharField(max_length=128, blank=True, null=True, verbose_name="附件路径", help_text="跟进记录的截图等") date = models.DateTimeField(auto_now_add=True) class Meta: verbose_name_plural = "42. 学员跟进记录" def __str__(self): return "%s --%s --%s" % (self.enrolled_degree_course, self.record, self.date)
shoppingcar.py
"""这是一个关于redis购物车的模块""" import json from rest_framework.views import APIView from rest_framework.response import Response from api import models from mysite import settings from django_redis import get_redis_connection from utils.response import BaseResponse USER_ID = 1 # 模拟用户 class ShoppingCarViewSet(APIView): # 类下的全局变量 conn = get_redis_connection("default") def post(self, request, *args, **kwargs): """ 将课程添加到购物车 :param request: :param args: :param kwargs: :return: """ ret = BaseResponse() try: # 1.获取用户提交的课程id和价格策略id course_id = int(request.data.get("courseid")) policy_id = int(request.data.get("policyid")) # 2.获取专题课程信息 course = models.Course.objects.get(id=course_id) # 3.获取该课程相关的所有价格策略 price_policy_list = course.price_policy.all() price_policy_dict = {} for item in price_policy_list: price_policy_dict[item.id] = { "period": item.valid_period, "period_display": item.get_valid_period_display(), "price": item.price, } # 4.判断用户提交的价格策略是否合法 if policy_id not in price_policy_dict: # 价格策略不合法 ret.code = 1001 ret.error = "价格异常" return Response(ret.dict) # 5.将购物信息添加到redis中 car_key = settings.SHOPPING_CAR_KEY % (USER_ID, course_id) car_dict = { "title": course.name, "img": course.course_img, "default_policy": policy_id, "policy": json.dumps(price_policy_dict) } self.conn.hmset(car_key, car_dict) ret.data = "添加成功" except Exception as e: ret.code = 1002 ret.error = "获取购物车失败" return Response(ret.dict) def delete(self, request, *args, **kwargs): """ 删除购物车中课程 :param request: :param args: :param kwargs: :return: """ ret = BaseResponse() try: course_id_list = request.data.get("courseids") key_list = [settings.SHOPPING_CAR_KEY % (USER_ID, course_id) for course_id in course_id_list] self.conn.delete(*key_list) except Exception as e: ret.code = 1001 ret.error = "删除失败" return Response(ret.dict) def patch(self, request, *args, **kwargs): """ 修改课程的价格策略 :param request: :param args: :param kwargs: :return: """ ret = BaseResponse() try: # 1.获取价格策略和课程id course_id = request.data.get("courseid") policy_id = request.data.get("policyid") # 2.拼接课程的key key = settings.SHOPPING_CAR_KEY % (USER_ID, course_id) if not self.conn.exists(key): ret.code = 1001 ret.error = "购物车中不存在此课程" return Response(ret.dict) # 3.redis中获取所有的价格策略 policy_dict = json.loads(str(self.conn.hget(key, "policy"), encoding="utf-8")) if policy_id not in policy_dict: ret.code = 1002 ret.data = "价格策略不合法" return Response(ret.dict) # 4.在购物车中修改该课程默认价格策略 self.conn.hset(key, "default_policy", policy_id) ret.data = "修改成功" except Exception as e: ret.code = 1003 ret.error = "修改失败" return Response(ret.dict) def get(self, request, *args, **kwargs): """ 查看购物车中所有的商品 :param request: :param args: :param kwargs: :return: """ ret = BaseResponse() try: key_match = settings.SHOPPING_CAR_KEY % (USER_ID, "*") course_list = [] for key in self.conn.scan_iter(key_match, count=10): info = { "title": self.conn.hget(key, "title").decode("utf-8"), "img": self.conn.hget(key, "img").decode("utf-8"), "policy": json.loads(self.conn.hget(key, "policy").decode("utf-8")), "default_policy": self.conn.hget(key, "default_policy").decode("utf-8"), } course_list.append(info) ret.data = course_list except Exception as e: ret.code = 1002 ret.error = "获取失败" return Response(ret.dict)
payment.py
"""这是一个结算中心模块""" import json import datetime from rest_framework.views import APIView from rest_framework.response import Response from django_redis import get_redis_connection from utils.response import BaseResponse from mysite import settings from api import models USER_ID = 1 class PayMentViewSet(APIView): conn = get_redis_connection("default") def post(self, request, *args, **kwargs): """ 购物车数据提交到结算中心 :param request: :param args: :param kwargs: :return: """ ret = BaseResponse() try: # 清空当前用户结算中心的数据 key_list = self.conn.keys(settings.PAYMENT_KEY % (USER_ID, "*")) key_list.append(settings.PAYMENT_COUPON_KEY % (USER_ID)) self.conn.delete(*key_list) payment_dict = {} # 通用优惠券 global_coupon_dict = { "coupon": {}, "default_coupon": 0 } # 1.获取用户要结算课程id course_id_list = request.data.get("courseids") for course_id in course_id_list: car_key = settings.SHOPPING_CAR_KEY % (USER_ID, course_id) # 1.1结算时检测用户的课程是否已经加入购物车 if not self.conn.exists(car_key): ret.code = 1001 ret.error = "课程需要先加入购物车才能结算" return Response(ret.dict) # 1.2从购物车中获取价格策略和默认价格，放入到结算中心 policy = json.loads(self.conn.hget(car_key, "policy").decode("utf-8")) default_policy = self.conn.hget(car_key, "default_policy").decode("utf-8") policy_info = policy[default_policy] payment_course_dict = { "course_id": str(course_id), "title": self.conn.hget(car_key, "title").decode("utf-8"), "img": self.conn.hget(car_key, "img").decode("utf-8"), "policy_id": default_policy, "coupon": {}, # 优惠券 "default_policy": 0 # 默认没有选择优惠券 } payment_course_dict.update(policy_info) payment_dict[str(course_id)] = payment_course_dict # 1.3获取优惠券 ctime = datetime.date.today() coupon_list = models.CouponRecord.objects.filter( account=USER_ID, status=0, coupon__valid_begin_date__lte=ctime, # 优惠券开始时间小于等于今天 coupon__valid_end_date__gte=ctime, ) for item in coupon_list: # 通用优惠券 if not item.coupon.object_id: coupon_id = item.id # 优惠券的类型： 满减、折扣、立减 coupon_type = item.coupon.coupon_type # 获取编号和中文解释 info = {} info["coupon_type"] = coupon_type info["coupon_display"] = item.coupon.get_coupon_type_display() if coupon_type == 0: # 立减 info["money_equivalent_value"] = item.coupon.money_equivalent_value elif coupon_type == 1: # 满减券 info["money_equivalent_value"] = item.coupon.money_equivalent_value info["minimum_consume"] = item.coupon.minimum_consume else: # 折扣 info["off_percent"] = item.coupon.off_percent # 通用优惠券 global_coupon_dict["coupon"][coupon_id] = info continue # 绑定课程优惠券id coupon_course_id = str(item.coupon.object_id) # 优惠券id coupon_id = item.id # (优惠券规则表)优惠券类型： 满减、折扣、立减 coupon_type = item.coupon.coupon_type info = {} info["coupon_type"] = coupon_type info["coupon_display"] = item.coupon.get_coupon_type_display() if coupon_type == 0: # 立减 info["money_equivalent_value"] = item.coupon.money_equivalent_value elif coupon_type == 1: # 满减券 info["money_equivalent_value"] = item.coupon.money_equivalent_value info["minimum_consume"] = item.coupon.minimum_consume else: # 折扣 info["off_percent"] = item.coupon.off_percent if coupon_course_id not in payment_dict: # 获取到优惠券，但是没有购买此课程 continue # 将优惠券设置到指定的课程字典中 payment_dict[coupon_course_id]["coupon"][coupon_id] = info # 1.4将绑定优惠券课程写入到redis中（结算中心） for cid, cinfo in payment_dict.items(): pay_key = settings.PAYMENT_KEY % (USER_ID, cid) cinfo["coupon"] = json.dumps(cinfo["coupon"]) self.conn.hmset(pay_key, cinfo) # 1.5将通用优惠券写入到redis中 gcoupon_key = settings.PAYMENT_COUPON_KEY % (USER_ID,) global_coupon_dict["coupon"] = json.dumps(global_coupon_dict["coupon"]) self.conn.hmset(gcoupon_key, global_coupon_dict) ret.data = "提交成功" except Exception as e: ret.code = 1003 ret.error = "提交失败" return Response(ret.dict) def patch(self, request, *args, **kwargs): """ 选择优惠券 :param request: :param args: :param kwargs: :return: """ ret = BaseResponse() try: # 1.用户提交要选择的优惠券 course = request.data.get("courseid") course_id = str(course) if course else course coupon_id = str(request.data.get("courseid")) redis_global_coupon_key = settings.PAYMENT_COUPON_KEY % (USER_ID,) # 1.1修改通用优惠券 if not course_id: if coupon_id == "0": # 不使用优惠券请求数据 self.conn.hset(redis_global_coupon_key, "default_coupon", coupon_id) ret.data = "修改成功" return Response(ret.dict) # 使用优惠券请求数据 coupon_dict = json.loads(self.conn.hget(redis_global_coupon_key, "coupon").decode("utf-8")) # 判断用户选择的优惠券是否合法 if coupon_id not in coupon_dict: ret.code = 1003 ret.error = "通用优惠券不存在" return Response(ret.dict) # 选择的优惠券合法 self.conn.hset(redis_global_coupon_key, "default_coupon", coupon_id) ret.data = "修改成功" return Response(ret.dict) # 修改课程优惠券 redis_payment_key = settings.PAYMENT_KEY % (USER_ID, course_id) # 不使用优惠券 if coupon_id == "0": self.conn.hset(redis_payment_key, "default_coupon", coupon_id) ret.data = "修改成功" return Response(ret.dict) # 使用优惠券 coupon_dict = json.loads(self.conn.hget(redis_payment_key, "coupon").decode("utf-8")) if coupon_id not in coupon_dict: ret.code = 1003 ret.error = "课程优惠券不存在" return Response(ret.dict) self.conn.hset(redis_payment_key, "default_coupon", coupon_id) ret.data = "修改课程优惠券成功" except Exception as e: ret.code = 1002 ret.error = "修改失败" return Response(ret.dict) def get(self, request, *args, **kwargs): """ 查看优惠券信息 :param request: :param args: :param kwargs: :return: """ ret = BaseResponse() try: # payment_1_* redis_payment_key = settings.PAYMENT_KEY % (USER_ID, "*") # payment_coupon_1 redis_global_coupon_key = settings.PAYMENT_COUPON_KEY % (USER_ID,) # 1.获取绑定课程信息 course_list = [] for key in self.conn.scan_iter(redis_payment_key): info = {} data = self.conn.hgetall(key) for k, v in data.items(): kk = k.decode("utf-8") if kk == "coupon": info[kk] = json.loads(v.decode("utf-8")) else: info[kk] = v.decode("utf-8") course_list.append(info) # 通用优惠券 global_coupon_didct = { "coupon": json.loads(self.conn.hget(redis_global_coupon_key, "coupon").decode("utf-8")), "default_coupon": self.conn.hget(redis_global_coupon_key, "default_coupon").decode("utf-8") } ret.data = { "course_list": course_list, "global_coupon_dict": global_coupon_didct } except Exception as e: ret.code = 1003 ret.error = "获取失败" return Response(ret.dict)
app/urls.py
from django.conf.urls import url from api.views import shoppingcar, payment, order urlpatterns = [ url(r'^shoppingcar/$', shoppingcar.ShoppingCarViewSet.as_view()), url(r'^payment/$', payment.PayMentViewSet.as_view()), url(r'^order/$', order.OrderViewset.as_view()), ]
mysite/urls.py
from django.conf.urls import url, include from django.contrib import admin urlpatterns = [ url(r'^admin/', admin.site.urls), url(r'^api/(?P<version>\w+)/', include("api.urls")), ]
settings.py
REST_FRAMEWORK = { 'DEFAULT_VERSIONING_CLASS': 'rest_framework.versioning.URLPathVersioning', 'ALLOWED_VERSIONS': ['v1', 'v2'], # 允许的版本 } # redis设置 CACHES = { "default": { "BACKEND": "django_redis.cache.RedisCache", "LOCATION": "redis://127.0.0.1:6379", "OPTIONS": { "CLIENT_CLASS": "django_redis.client.DefaultClient", "CONNECTION_POOL_KWARGS": {"max_connections": 100}, "PASSWORD": "123456", } } } # 购物车相关设置 SHOPPING_CAR_KEY = "shopping_car_%s_%s" PAYMENT_KEY = "payment_%s_%s" PAYMENT_COUPON_KEY = "payment_coupon_%s"
utils/response.py
class BaseResponse(object): def __init__(self): self.code = 1000 self.data = None self.error = None @property def dict(self): return self.__dict__
