博客园步骤

一、新建项目以及app名字

在pycharm左上角file中点击 new project... 点击左侧django 在右面板写项目名、app名以及选择Python解释器，点击apply 再确定

之后新建静态文件夹static，在static文件夹下新建CSS和js文件，再去setting中配置如下：

STATIC_URL = '/static/'
STATICFILES_DIRS=[
    os.path.join(BASE_DIR,'static')
]


#修改链接数据库，USER可能会写成os.getenv('user')（环境变量去进行添加操作）

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME':'bbs',
        'HOST':'127.0.0.1',
        'POST':3306,
        'USER':'root',
        'PASSWORD':'123321',
    }
}

import pymysql

pymysql.install_as_MySQLdb()

models.py:

from django.db import models

# Create your models here.



#用户上传的文件一般放到media文件夹中
from django.contrib.auth.models import AbstractUser

class UserInfo(AbstractUser):
    phone=models.CharField(max_length=32)
    #upload_to文件上传以后的存放路径
    #FileField本质是varchar类型
    avatar=models.FileField(upload_to='avatar/',default='avatar/default.png')
    blog=models.OneToOneField(to='Blog'，on_delete=models.CASCADE)



class Blog(models.Model):
    site_title=models.CharField(max_length=32)
    site_name= models.CharField(max_length=32)
    #每个人样式不同（文件地址）
    site_style= models.CharField(max_length=32)



class Tag(models.Model):
    name=models.CharField(max_length=32)
    blog=models.ForeignKey(to='Blog')


class Category(models.Model):
    name = models.CharField(max_length=32)
    blog = models.ForeignKey(to='Blog')



class TagToArticle(models.Model):
    tag=models.ForeignKey(to='Tag')
    article=models.ForeignKey(to='Article')


class Article(models.Model):
    title = models.CharField(max_length=32)
    desc= models.CharField(max_length=128)
    #大文本 样式展现出来是一个大方框
    content=models.TextField()
    cerate_time=models.DateTimeField(auto_now_add=True)


    #关联关系
    blog=models.ForeignKey(to='Blog',on_delete=models.CASCADE)
    category=models.ForeignKey(to='Category',on_delete=models.CASCADE)
    #多对多关系
    tag=models.ManyToOneRel(to='Tag',through='TagToArticle',through_fields=('article','tag'))




class UpAndDown(models.Model):
    user=models.ForeignKey(to='UserInfo')
    article = models.ForeignKey(to='Article')
    #
    is_up=models.BooleanField()
    create_time=models.DateTimeField(auto_now_add=True)



class Commit(models.Model):
    user = models.ForeignKey(to='UserInfo')
    article = models.ForeignKey(to='Article')
    content=models.CharField(max_length=256)
    create_time = models.DateTimeField(auto_now_add=True)


    #自关联
    commit_id=models.ForeignKey(to='self'，on_delete=models.CASCADE)
#级联删除不完整使用时根据需要自行添加

再去setting中配置：

#扩写auth_UserInfo表，是app名字+user表名
AUTH_USER_MODEL='blog.UserInfo'

去数据库新建数据库：

数据库名：bbs

字符集：utf8--UTF-8 Unicode

建立好新表之后再进行迁移

在blog文件夹中新建blog_form.py:

#校验
from django import forms
from django.forms import widgets
from blog import models

from django.forms import ValidationError

class RegisterForm(forms.Form):
    username = forms.CharField(required=True, max_length=18, min_length=3,label='用户名',
                               error_messages={'required': '该字段必填',
                                               'max_length': '做大长度为18',
                                               'min_length': '最短为3'},
                               widgets=widgets.TextInput(attrs={'class': 'form-control'}))
    password = forms.CharField(required=True, max_length=18, min_length=3,label='密码',
                               error_messages={'required': '该字段必填',
                                               'max_length': '做大长度为18',
                                               'min_length': '最短为3'},
                               widgets=widgets.PasswordInput(attrs={'class': 'form-control'}))
    re_password = forms.CharField(required=True, max_length=18, min_length=3,label='确认密码',
                                  error_messages={'required': '该字段必填',
                                                  'max_length': '做大长度为18',
                                                  'min_length': '最短为3'},
                                  widgets=widgets.PasswordInput(attrs={'class': 'form-control'}))
    email = forms.EmailField(required=True,label='邮箱',
                                  error_messages={'required': '该字段必填'},
                                  widgets=widgets.EmailInput(attrs={'class': 'form-control'}))


    #用户名如果存在了 就不能注册
    def clean_username(self):
        username=self.cleaned_data.get('username')
        #去数据库查询
        user=models.UserInfo.objects.filter(username=username).count()
        if user: #不合法
            raise ValidationError('用户名已经存在')
        else:
            return username

    #校验两次密码是否一致
    def clean(self):
        password=self.cleaned_data.get('password')
        re_password=self.cleaned_data.get('re_password')
        if re_password==password:
            return self.cleaned_data
        else:
            raise ValidationError('两次密码不一致')

urls.py:

from django.contrib import admin
from django.urls import path
from blog import views

urlpatterns = [
    path('admin/', admin.site.urls),
    path('register/',views.register),
]

views.py:

from django.shortcuts import render
from django.http import JsonResponse
from blog import models
# Create your views here.
from blog.blog_form import RegisterForm

def register(request):
    if request.method == 'GET':
        #实例化 传到register.html中就可以使用
        form=RegisterForm()
        return render(request,'register.html',context={'form':form})
    elif request.method=='POST':
        #校验数据是否合法
        res={'code':100,'msg':'注册成功'}
        form=RegisterForm(data=request.POST)
        if form.is_valid():
            #保存到数据库
            data=form.cleaned_data #{username:zs,password:123,avatar:文件对象}
            data.pop('re_password')#在字典中  所以需要删除 得到上面这个字典
            if not data.get('avatar'):
                data.pop('avatar')
            models.UserInfo.objects.create_user(**data)
            #返回会被ajax接收到
            return JsonResponse(res)
        else:
            #数据校验不通过
            res['code']=101 #101标识注册失败
            res['msg']='数据验证失败'
            res['error']=form.errors
            return JsonResponse(res)
//需要迁移数据库

register.html:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <link rel="stylesheet" href="/static/bootstrap/css/bootstrap-theme.min.css">
    <script scr="/static/jquery-3.3.1/jquery-3.3.1.min.js"></script>
    <title>注册</title>
</head>
<body>
<div class="container-fluid">
    <div class="row">
        <h1 class="text-center">注册功能</h1>
        <div class="col-md=6 col-md-offset-3">

            <form id=""form>
            {% csrf_token %}
            {% for foo in form %}
                <div class="form-group">
                    <label for="{{ foo.auto_id }}">{{ foo.label }}</label>
                    {{ foo }}
                </div>
            {% endfor %}
            <div class="form-group">
{#            焦点 实现点击图片和头像文字也可以上传头像#}
            <label for="id_myfile">头像</label>
{#            默认头像图片路径以及图片高宽#}
            <img src="/static/img/default.png" alt="" id="id_img" height="80" width="80" style="margin-left: 10px ">
{#            根据id实现label中焦点 将上传文件按键以及文字隐藏更加美观#}
            <input type="file" name="myfile" id="id_myfile" style="display: none">
        </div>
            <div class="text-center">
            <input type="button" value="注册" id="id_submit" class="btn btn-danger">
            </div>
            </form>>
        </div>
    </div>
</div>
</body>
<script>
    //放文件的标签发生变化，我们把文件搞出来，放到img标签中
    $("#id_myfile").change(function(){
        //借助于文件阅读器
        var filereader = new FileReader()
        //把图片读到filereader对象中
        //$('id_myfile')[0].files[0]
        filereader.readAsDataURL($('#id_myfile')[0].files[0])
        //$('#id_img').attr('src','https://account.cnblogs.com/images/registersideimg
        //$('#id_img').attr('src',filereader.result)//这样不行，文件没读完
        filereader.onload=function(){
            //文件完全读到文件阅读器以后再执行
            $('#id_img').attr('src',filereader.result)
        }

    })

    $("#id_submit").click(function () {
        var formdata=new FormData()
        formdata.append('avatar',$('#id_myfile')[0].files[0])
        var ser=$('#form').serializeArray()
        $.each(ser,function(k,v){
            formdata.append(v.name,v.value)
        })

        $.ajax({
            url:'/register/',
            method:'post',
            processData:false,
            contentType:false,
            data:formdata,
            success:function(data){
                if (data.code==100){
                    console.log(data.msg)
                    //js控制的跳转 本地跳转
                    location.href=data.url
                }else {
                    //有错误 需要渲染页面
                }
            }
        })
    })
</script>
</html>