Django开发笔记三

Django开发笔记一

Django开发笔记二

Django开发笔记三

Django开发笔记四

Django开发笔记五

Django开发笔记六

１、基于类的方式重写登录：views.py:

from django.views.generic.base import View

class LoginView(View):
    def get(self,request):
        return render(request, "test/login.html", {})

    def post(self,request):
        user_name = request.POST.get("username", "")
        pass_word = request.POST.get("password", "")
        user = authenticate(username=user_name, password=pass_word)

        if user is not None:
            dj_login(request, user)
            return render(request, "test/index.html", {})
        else:
            return render(request, "test/login.html", {"msg": "用户名或密码错误"})

 users.py:

url(r'^login/$', LoginView.as_view(), name="login"),

2、用python变量描述文件路径，方便统一修改

                        <a style="color:white" class="fr registerbtn" href="{% url 'register' %}">注册</a>
                        <a style="color:white" class="fr loginbtn" href="/login/">登录</a>

{% load staticfiles %}
......
	<link rel="stylesheet" type="text/css" href="/static/css/test/reset.css">
	<link rel="stylesheet" type="text/css" href="/static/css/test/animate.css">
	<link rel="stylesheet" type="text/css" href="{% static 'css/test/style.css'%}">

 3、验证码

django-simple-captcha文档：http://django-simple-captcha.readthedocs.io/en/latest/usage.html#installation

urls.py:

urlpatterns = [
    url(r'^captcha/', include('captcha.urls')),

]

settings.py:

INSTALLED_APPS = [
    'captcha',

]

 forms.py:

class RegisterForms(forms.Form):
    email = forms.CharField(required=True)
    password = forms.CharField(required=True, min_length=6)
    captcha = CaptchaField()

 views.py:

class RegisterView(View):
    def get(self, request):
        register_forms = RegisterForms()
        return render(request, "test/register.html", {"register_forms": register_forms})

    def post(self, request):
        register_forms = RegisterForms(request.POST)
        if register_forms.is_valid():
            email = request.POST.get("email", "")
            pass_word = request.POST.get("password", "")
            if UserProfile.objects.filter(email=email):
                return render(request, "test/register.html", {"msg": "邮箱已被注册"})
            else:
                user_profile = UserProfile()
                user_profile.username = email
                user_profile.email = email
                user_profile.password = make_password(pass_word)
                user_profile.save()
                return render(request, "test/login.html", {})

        else:
            return render(request, "test/register.html", {"register_forms": register_forms})

 register.html:

                 <form id="email_register_form" method="post" action="/register/" autocomplete="off">
                        <div class="form-group marb20 ">
                            <label>邮     箱</label>
                            <input  type="text" id="id_email" name="email" value="" placeholder="请输入您的邮箱地址" />
                        </div>
                        <div class="form-group marb8 ">
                            <label>密     码</label>
                            <input type="password" id="id_password" name="password"  value="" placeholder="请输入6-20位非中文字符密码" />
                        </div>
                        <div class="form-group marb8 captcha1 ">
                            <label>验 证 码</label>

                            {{ register_forms.captcha }}
                        </div>
                        <div class="error btns" id="jsEmailTips"></div>
                        <div class="auto-box marb8">
                        </div>
                        <input class="btn btn-green" id="jsEmailRegBtn" type="submit" value="注册并登录" />
                    {% for key ,error in register_forms.errors.items %}{{ error }}{% endfor %}{{ msg }}
                    {% csrf_token %}
                    </form>

 4、文件上传：

settings.py

MEDIA_URL = '/static/images/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'static/images/')

 models.py:

image = models.ImageField(upload_to="course/%y/%m", verbose_name=u"封面图", max_length=100)

 html显示：

          {% for video in video_list%}
                <div class="item">
                    <a href="">
                        <img src="{{ MEDIA_URL }}{{ video.image }}">
                        <p class="title">{{ video.name }}</p>
                    </a>
                </div>
            {% endfor %}

 需要在settings.py:

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')]
        ,
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
.......
                'django.template.context_processors.media',  # 配置html页面获取MEDIA_URL路径
            ],
        },
    },
]