Django之作业:相亲

Django之作业:相亲

      环境:Python3.6、Django2.0.6、MySQL5.7、PyMySQL0.9

      目录结构业务划分:

  登录注销业务在views包中的account.py

  相亲的男女匹配业务在love.py

-----各页面-----:

 others.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    {% include "user_header.html" %}
    <h1>有关系的异性</h1>
    <ul>
        {% for row in user_list %}
            {% if row.g__nickname %}
                <li>{{ row.g__nickname }}</li>
            {% else %}
                <li>{{ row.b__nickname }}</li>
            {% endif %}
        {% endfor %}
    </ul>
</body>
</html>

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    {% include "user_header.html" %}
    <a href="/others/">查看和我有关的异性</a>
    <h3>异性列表</h3>
    <ul>
        {% for user in user_list %}
            <li>{{ user.nickname }}</li>
        {% endfor %}
    </ul>
</body>
</html>

login.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h1>登录</h1>
    <form method="post" action="login.html">
        {% csrf_token %}
        <p>username:<input type="text" name="username"></p>
        <p>password:<input type="password" name="password"></p>
        <p>性别:
            男:<input type="radio" name="gender" value="1">
            女:<input type="radio" name="gender" value="2">
        </p>
        <p><input type="checkbox" name="rmb" value="11">一月免登陆</p>
        <input type="submit" value="submit">{{ msg }}
    </form>
</body>
</html>

user_header.html

<h1>用前用户:{{ request.session.user_info.nickname }}</h1>
<a href="/logout/">注销</a>

-----各后端-----

url.py

from django.contrib import admin
from django.conf.urls import url
from app01.views import account
from app01.views import love

urlpatterns = [
    # path('admin/', admin.site.urls),
    url('^login/', account.login),
    url('^logout/', account.logout),
    url('^index/', love.index),
    url('^others/', love.others),
    url('^test/', love.test),

]

models.py

from django.db import models

class UserInfo(models.Model):
    nickname = models.CharField(max_length=32)
    username = models.CharField(max_length=32)
    password = models.CharField(max_length=32)
    gender_choices = (
        (1,"man"),
        (2,"woman"),
    )
    gender = models.IntegerField(choices=gender_choices)
    #用ManyToManyField建立boy和girl的关系
    #ManyToManyField 的自关联
    m = models.ManyToManyField("UserInfo")

# 方式一:
#related_query_name 的形式是:boys_set.all()
#related_query_name 的意思是: 根据对象反向查找时用boys就可以啦,boys代表这个g的对象反向关联的Foreignkey
# class U2U(models.Model):
#     g = models.ForeignKey("UserInfo",related_query_name="boys")
#     b = models.ForeignKey("UserInfo",related_query_name="girls")

#方式二:
#related_name 的形式是:boys.all()
#related_name 的意思是: 根据对象反向查找时用boys就可以啦,boys代表这个g的对象反向关联的Foreignkey
# class U2U(models.Model):
#     g = models.ForeignKey("UserInfo",related_name="boys",on_delete=models.CASCADE)
#     b = models.ForeignKey("UserInfo",related_name="girls",on_delete=models.CASCADE)

class Comment(models.Model):
    """
    评论表
    """
    new_id = models.IntegerField()             #新闻id
    content = models.CharField(max_length=32)  #评论的内容
    user = models.CharField(max_length=32)     #评论者
    reply = models.ForeignKey("Comment",null=True,blank=True,related_name="")


# class Boy(models.Model):
#     nickname = models.CharField(max_length=32)
#     username = models.CharField(max_length=32)
#     password = models.CharField(max_length=64)
#
# class Girl(models.Model):
#     nickname = models.CharField(max_length=32)
#     username = models.CharField(max_length=32)
#     password = models.CharField(max_length=64)
#
# class B2G(models.Model):
#     b = models.ForeignKey(to="Boy",to_field="id",on_delete=models.CASCADE)
#     g = models.ForeignKey(to="Girl",to_field="id",on_delete=models.CASCADE)
# Create your models here.

account.py

"""
登录相关
"""
from django.shortcuts import redirect,HttpResponse,render
from app01 import models

def login(request):
    if request.method == "GET":
        return render(request,"login.html")
    else:
        username = request.POST.get("username")
        password = request.POST.get("password")
        gender = request.POST.get("gender")
        rmb = request.POST.get("rmb")
        #性别判断
        if gender == "1":
            obj = models.Boy.objects.filter(username=username,password=password).first()
            print("account:Boy",obj.username,obj.password)
        else:
            obj = models.Girl.objects.filter(username=username,password=password).first()
            print("account:Girl", obj.username,obj.password)
        if not obj:
            return render(request,"login.html",{"msg":"username or password is error"})
        else:
            print("111")
            # request.session["username_id"] = obj.id
            # request.session["gender"] = gender
            # request.session["username"] = username
            request.session["user_info"] = \
                {"username_id":obj.id,"gender":gender,"username":username,"nickname":obj.nickname}
            print("222")
            return redirect("/index/")

def logout(request):
    # request.session.delete(request.session.session_key)
    #删除数据库session存的相关的所以数据
    request.session.clear()
    #clear只是清空了登录用户的当前cookie,也就是将cookie的时间设为了0.
    return redirect("/login/")

love.py

"""
相亲页面
"""
from django.shortcuts import redirect,HttpResponse,render
from app01 import models

def index(request):
    if not request.session.get("user_info"):
        return redirect("/login/")
    else:
        #拿取当前登录用户的昵称,也可以直接在传到前端的request里获取
        # current_nick_name = request.session.get("user_info").get("nickname")
        #男生查看女生列表,女生查看男生列表
        #先辨别是男是女
        gender = request.session.get("user_info").get("gender")
        print("gender",gender)
        if gender == "1":
            user_list = models.Girl.objects.all()
            print(user_list)
        else:
            user_list = models.Boy.objects.all()
            print(user_list)
        return render(request,"index.html",{"user_list":user_list})

def others(request):
    """
    获取与当前用户有关的异性
    :param request:
    :return:
    """
    current_username_id = request.session.get("user_info").get("username_id")
    #当前用户id
    gender = request.session.get("user_info").get("gender")
    if gender == "1":
        user_list = models.B2G.objects.filter(b_id=current_username_id).values("g__nickname")
    else:
        user_list = models.B2G.objects.filter(g_id=current_username_id).values("b__nickname")
    return render(request,"others.html",{"user_list":user_list})

def test(request):
    # #创建关系数据
    # models.U2U.objects.create(b_id=1,g_id=3)
    # models.U2U.objects.create(b_id=4,g_id=3)
    # models.U2U.objects.create(b_id=4,g_id=2)
    # models.U2U.objects.create(b_id=4,g_id=5)
    # models.U2U.objects.create(b_id=1,g_id=5)

    #通过对象的形式给U2U添加关系数据
    # boy = models.UserInfo.objects.filter(gender=1,id=1).first()
    # girl = models.UserInfo.objects.filter(gender=2,id=3).first()
    # models.U2U.objects.create(b=boy,g=girl)

    #方式二的ORM建表方式的取值:
    #love_list是UserInfo对象
    # love_list = models.UserInfo.objects.filter(id=1).first()
    #拿取与love_list 中与id有关的数据,通过love_list的反向关联拿取
    # result = love_list.girls.all()
    #result拿到的是U2U 的列表,列表里是U2U的对象
    # for u in result:
    #     print(u.g.nickname)

    #ManyToManyField 的方式的建表的取值方式:
    #ManyToManyField 的自管理取值:
    #查男生的方式:
    user_boy = models.UserInfo.objects.filter(id=4).first()
    love_list = user_boy.m.all()
    #love_list 是UserInfo 的对象
    for row in love_list:
        print(row.id,row.gender,row.nickname)
    #查女生的方式:
    user_girl = models.UserInfo.objects.filter(id=2).first()
    love_list = user_girl.userinfo_set.all()
    #与女孩相关的男孩个数
    for row in love_list:
        print(row.id,row.gender,row.nickname)

    return HttpResponse("...")

  love_list 反向关联查找拿到的是U2U的对象: 

 

 

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posted @ 2019-08-21 10:22  王先生是胖子  阅读(168)  评论(0编辑  收藏  举报