Python3 Advanced Development-the first Imitation Blog Park project (1)

First we will design the table structure:

UserInfo (user information Form)--------"one-to-one-----------" blog (blog Information sheet)

UserInfo (User information Sheet)---------"one-to-many-----------" article UpDown (likes table)

UserInfo (User information Sheet)---------"one-to-many-----------" article Comment (comment form)

UserInfo (User information Sheet)----------"one-to-many-----------" article (article)

Blogs (blog information table)----------------"one-to-many-----------" category (personal blog post classification)

Blogs (blog information table)----------------"one-to-many------------" tag (tag table)

Category (Personal blog Article classification table)--"one to many-------------" article (article table)

Tag (tag table)--------------------------"Many-to-many-------------" article (article table)

Article (article table)------------------------"one to one-------------" articledetail (Article detail table)

Article (article table)------------------------"one-to-many--------------" article UpDown (likes table)

Article (article table)------------------------"one-to-many---------------" article Comment (comment form)

 fromDjango.dbImportModels#Create your models here. fromDjango.contrib.auth.modelsImportAbstractuserclassUserInfo (abstractuser):"""User Information Table"""nid= Models. Autofield (primary_key=True) Phone= Models. Charfield (max_length=11, Null=true, unique=True) Avatar= Models. Filefield (upload_to="avatars/", default="Avatars/default.png") Blog= Models. Onetoonefield (to="Blog", to_field="nid", null=True)def __str__(self):returnSelf.usernameclassMeta:verbose_name="User Information"verbose_name_plural=Verbose_nameclassBlog (models. Model):"""Blog Information"""nid= Models. Autofield (primary_key=True) Title= Models. Charfield (max_length=64)#Personal Blog TitleTheme = models. Charfield (MAX_LENGTH=32)#Blog Topics    def __str__(self):returnSelf.titleclassMeta:verbose_name="Blog"verbose_name_plural=Verbose_nameclassCategory (models. Model):"""personal blog post categories"""nid= Models. Autofield (primary_key=True) Title= Models. Charfield (MAX_LENGTH=32)#category HeadingsBlog = models. ForeignKey (to="Blog", to_field="nid")#Foreign Key Association blog, a blog site can have multiple categories    def __str__(self):return "{}-{}". Format (Self.blog.title, Self.title)classMeta:verbose_name="article Categories"verbose_name_plural=Verbose_nameclassTag (models. Model):"""label"""nid= Models. Autofield (primary_key=True) Title= Models. Charfield (MAX_LENGTH=32)#Label nameBlog = models. ForeignKey (to="Blog", to_field="nid")#Affiliated Blog    def __str__(self):returnSelf.titleclassMeta:verbose_name="label"verbose_name_plural=Verbose_nameclassarticle (models. Model):"""article"""nid= Models. Autofield (primary_key=True) Title= Models. Charfield (MAX_LENGTH=50)#article titledesc = models. Charfield (max_length=255)#Article DescriptionCreate_time = models. Datetimefield (Auto_now_add=true)#creation TimeCategory = Models. ForeignKey (to="Category", to_field="nid", null=True) User= Models. ForeignKey (to="UserInfo", to_field="nid") Tags=models. Manytomanyfield ( to="Tag", through="Article2tag", Through_fields=("article","Tag"),    )    def __str__(self):returnSelf.titleclassMeta:verbose_name="article"verbose_name_plural=Verbose_nameclassArticledetail (models. Model):"""Article details Table"""nid= Models. Autofield (primary_key=True) Content=models. TextField () Article= Models. Onetoonefield (to="article", to_field="nid")    classMeta:verbose_name="article details"verbose_name_plural=Verbose_nameclassArticle2tag (models. Model):"""Many-to-many relationship tables for articles and labels"""nid= Models. Autofield (primary_key=True) Article= Models. ForeignKey (to="article", to_field="nid") Tag= Models. ForeignKey (to="Tag", to_field="nid")    def __str__(self):return "{}-{}". Format (self.article, Self.tag)classMeta:unique_together= (("article","Tag"),) Verbose_name="Articles-Tags"verbose_name_plural=Verbose_nameclassArticleupdown (models. Model):"""Click like table"""nid= Models. Autofield (primary_key=True) User= Models. ForeignKey (to="UserInfo", null=True) Article= Models. ForeignKey (to="article", null=True) is_up= Models. Booleanfield (default=True)classMeta:unique_together= (("article","User"),) Verbose_name="Click to praise"verbose_name_plural=Verbose_nameclassComment (models. Model):"""comment Form"""nid= Models. Autofield (primary_key=True) Article= Models. ForeignKey (to="article", to_field="nid") User= Models. ForeignKey (to="UserInfo", to_field="nid") Content= Models. Charfield (max_length=255)#Comment ContentCreate_time = models. Datetimefield (auto_now_add=True) parent_comment= Models. ForeignKey (" Self", null=True)def __str__(self):returnself.contentclassMeta:verbose_name="Reviews"verbose_name_plural= Verbose_name

Python3 Advanced Development-the first Imitation Blog Park project (1)