搭建本身的博客（二十七）：增長登陸註冊以及我的資料按鈕

時間  2019-11-11
標籤 搭建 本身 博客 二十七 增長 登陸 註冊 以及 我的 資料 按鈕 简体版
原文   原文鏈接

一、變化的部分javascript

二、上代碼：css

{# 引用模板 #}
{% extends 'base.html' %}
{% load staticfiles %}
{% load comment_tags %}
{% load likes_tags %}

{% block header_extends %}
    <link rel="stylesheet" href="{% static 'blog/blog.css' %}">
    <link rel="stylesheet" href="{% static 'fontawesome-free-5.5.0-web/css/all.min.css' %}">

    {#  處理公式  #}
    <script src='https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-MML-AM_CHTML'
            async></script>
    <script type="text/javascript" src="{% static "ckeditor/ckeditor-init.js" %}"></script>
    <script type="text/javascript" src="{% static "ckeditor/ckeditor/ckeditor.js" %}"></script>

{% endblock %}

{# 標題 #}
{% block title %}
    {{ blog.title }}
{% endblock %}

{# 內容#}
{% block content %}
    <div class="container">
        <div class="row">
            <div class="col-10 offset-1">
                <ul class="blog-info-description">
                    <h3>{{ blog.title }}</h3>
                    <li>做者：{{ blog.author }}</li>
                    {# 時間過濾器讓時間按照本身須要的格式過濾 #}
                    <li>發佈日期：{{ blog.created_time|date:"Y-m-d H:i:s" }}</li>
                    <li>分類：
                        <a href="{% url 'blogs_with_type' blog.blog_type.pk %}">
                            {{ blog.blog_type }}
                        </a>
                    </li>
                    <li>閱讀({{ blog.get_read_num }})</li>
                    <li>評論({% get_comment_count blog %})</li>
                </ul>
                <div class="blog-content">{{ blog.content|safe }}</div>

                <div class="like"
                     onclick="likeChange(this,'{% get_content_type blog %}',{{ blog.pk }})">
                    <i class="far fa-thumbs-up {% get_like_status blog %}"></i>
                    <span class="liked-num">{% get_like_count blog %}</span>
                    <span>喜歡</span>
                </div>

                <p>上一篇：
                    {% if previous_blog %}
                        <a href="{% url 'blog_detail' previous_blog.pk %}">{{ previous_blog.title }}</a>
                    {% else %}
                        <span>沒有了</span>
                    {% endif %}
                </p>
                <p>下一篇：
                    {% if next_blog %}
                        <a href="{% url 'blog_detail' next_blog.pk %}">{{ next_blog.title }}</a>
                    {% else %}
                        <span>沒有了</span>
                    {% endif %}
                </p>
            </div>
        </div>
        <div class="row">
            <div class="col-10 offset-1">
                <div class="comment-area">
                    <h3 class="comment-area-title">提交評論</h3>
                    {% if user.is_authenticated %}
                        <form id="comment-form" action="{% url 'update_comment' %}" method="post"
                              style="overflow: hidden">
                            {% csrf_token %}
                            <label for="form-control">{{ user.username }},歡迎評論～</label>
                            <div id="reply-content-container" style="display: none;">
                                <p id="reply_title">回覆：</p>
                                <div id="reply-content">

                                </div>
                            </div>
                            {% get_comment_form blog as comment_form %}
                            {% for field in comment_form %}
                                {{ field }}
                            {% endfor %}
                            <span id="comment-error" class="text-danger float-left"></span>
                            <input type="submit" value="評論" class="btn btn-primary float-right">
                        </form>
                    {% else %}
                        您還沒有登陸，登陸以後方可評論
                        {# 提交登陸的時候帶上從哪裏訪問的路徑 #}
                        <a class="btn btn-primary" href="{% url 'login' %}?from={{ request.get_full_path }}">登陸</a>
                        <span> or </span>
                        <a class="btn-danger btn" href="{% url 'register' %}?from={{ request.get_full_path }}">註冊</a>
                    {% endif %}
                </div>
                <div class="-comment-area">
                    <h3 class="comment-area-title">評論列表</h3>
                    <div id="comment-list">
                        {% get_comment_list blog as comments %}
                        {% for comment in comments %}
                            <div id="root-{{ comment.pk }}" class="comment">
                                <span>{{ comment.user.username }}</span>
                                <span>{{ comment.comment_time|date:"Y-m-d H:i:s" }}</span>
                                <div id="comment-{{ comment.pk }}">{{ comment.text|safe }}</div>
                                {# 點贊 #}
                                <div class="like"
                                     onclick="likeChange(this,'{% get_content_type comment %}',{{ comment.pk }})">
                                    <i class="far fa-thumbs-up {% get_like_status comment %}"></i>
                                    <span class="liked-num">{% get_like_count comment %}</span>
                                </div>

                                <a href="javascript:reply({{ comment.pk }})">回覆</a>

                                {% for reply in comment.root_comment.all %}
                                    <div class="reply">
                                        <span>{{ reply.user.username }}</span>
                                        <span>{{ reply.comment_time|date:"Y-m-d H:i:s" }}</span>
                                        <span>回覆：</span><span>{{ reply.reply_to.username }}</span>
                                        <div id="comment-{{ reply.pk }}">{{ reply.text|safe }}</div>
                                        {# 點贊 #}
                                        <div class="like"
                                             onclick="likeChange(this,'{% get_content_type reply %}',{{ reply.pk }})">
                                            <i class="far fa-thumbs-up {% get_like_status reply %}"></i>
                                            <span class="liked-num">{% get_like_count reply %}</span>
                                        </div>

                                        <a href="javascript:reply({{ reply.pk }})">回覆</a>
                                    </div>
                                {% endfor %}
                            </div>
                        {% empty %}
                            <span id="no-comment">暫無評論</span>
                        {% endfor %}
                    </div>
                </div>
            </div>
        </div>
    </div>
{% endblock %}

{% block js %}
    <script>
        // 處理點贊
        function likeChange(obj, content_type, object_id) {
            let is_like = obj.getElementsByClassName('active').length === 0;


            $.ajax({
                url: "{% url 'like_change' %}",
                type: 'GET',
                data: {
                    content_type: content_type,
                    object_id: object_id,
                    is_like: is_like,
                },
                cache: false,
                success: function (data) {
                    console.log(data);
                    if (data['status'] === 'SUCCESS') {
                        // 更新點贊狀態
                        let element = $(obj.getElementsByClassName('fa-thumbs-up'));
                        if (is_like) {
                            element.addClass('active');
                        } else {
                            element.removeClass('active');
                        }
                        // 更新點贊數量
                        let like_num = $(obj.getElementsByClassName('liked-num'));
                        like_num.text(data['liked_num']);

                    } else {

                        if (data['code'] === 400) {
                            $('#login_model').modal('show');
                        } else {
                            alert(data['msg']);
                        }
                    }
                },
                error: function (xhr) {
                    console.log(xhr);
                }
            });
        }

        // 處理回覆
        function reply(reply_comment_id) {
            $('#reply_comment_id').val(reply_comment_id);
            let html = $('#comment-' + reply_comment_id).html();

            $('#reply-content').html(html);
            $('#reply-content-container').show();  // 顯示內容


            // 滾動富文本編輯器
            $('html').animate({scrollTop: $('#comment-form').offset().top - 60}, 300, function () {
                // 動畫執行完畢後執行的方法
                // 讓富文本編輯器得到焦點
                CKEDITOR.instances['id_text'].focus();
            });
        }

        function numFormat(num) {
            return ('00' + num).substr(-2);
        }

        function timeFormat(timestamp) {
            let datetime = new Date(timestamp * 1000);
            let year = datetime.getFullYear();
            let month = numFormat(datetime.getMonth() + 1);
            let day = numFormat(datetime.getDate());
            let hour = numFormat(datetime.getHours());
            let minute = numFormat(datetime.getMinutes());
            let second = numFormat(datetime.getSeconds());
            return `${year}-${month}-${day} ${hour}:${minute}:${second}`
        }

        // 提交評論
        $('#comment-form').submit(function () {
            // 獲取錯誤框
            let comment_error = $('#comment-error');
            comment_error.text('');

            // 更新數據到textarea
            CKEDITOR.instances['id_text'].updateElement();
            let comment_text = CKEDITOR.instances['id_text'].document.getBody().getText().trim();
            // 判斷是否爲空
            if (!(CKEDITOR.instances['id_text'].document.getBody().find('img')['$'].length !== 0 || comment_text !== '')) {
                // 顯示錯誤信息
                comment_error.text('評論內容不能爲空');
                return false;
            }
            //異步提交
            $.ajax({
                url: "{% url 'update_comment' %}",
                type: 'POST',
                data: $(this).serialize(),// 序列化表單值
                cache: false, // 關閉緩存
                success: function (data) {
                    let reply_comment = $('#reply_comment_id');
                    if (data['status'] === 'SUCCESS') {
                        console.log(data);
                        //  插入數據
                        //  es6寫法
                        let like_html = `<div class="like"
                                     onclick="likeChange(this,'${data['content_type']}',${data["pk"]})">
                                    <i class="far fa-thumbs-up"></i>
                                    <span class="liked-num">0</span>
                                </div>`;
                        if (reply_comment.val() === '0') {
                            // 插入評論
                            let comment_html = `<div id="root-${data["pk"]}" class="comment">
                                <span>${data["username"]}</span>
                                <span>${timeFormat(data["comment_time"])}</span>
                                <div id="comment-${data["pk"]}">${data["text"]}</div>
                                ${like_html}
                                <a href="javascript:reply(${data["pk"]})">回覆</a>
                            </div>`;

                            $('#comment-list').prepend(comment_html);

                        } else {
                            // 插入回覆

                            let reply_html = `<div class="reply">
                                        <span>${data["username"]}</span>
                                        <span>${timeFormat(data["comment_time"])}</span>
                                        <span>回覆：</span><span>${data["reply_to"]}</span>
                                        <div id="comment-${data["pk"]}">${data["text"]}</div>
                                        ${like_html}
                                        <a href="javascript:reply(${data["pk"]})">回覆</a>
                                    </div>`;
                            $('#root-' + data['root_pk']).append(reply_html);

                        }

                        //  清空編輯框的內容
                        CKEDITOR.instances['id_text'].setData('');
                        $('#reply-content-container').hide(); // 回覆完隱藏掉要回復的內容
                        reply_comment.val('0'); // 將回復標誌重置0
                        $('#no-comment').remove(); // 若是有沒回復標誌，清除掉5
                        comment_error.text('評論成功');
                    } else {
                        // 顯示錯誤信息
                        comment_error.text(data['message'])
                    }
                },
                error: function (xhr) {
                    console.log(xhr);
                }
            });
            return false;
        });
    </script>

    <script>
        $(".nav-blog").addClass("active").siblings().removeClass("active");
    </script>
{% endblock %}
blog下的blog_detail.html 
from django.shortcuts import render, get_object_or_404
from django.core.paginator import Paginator
from django.conf import settings
from django.db.models import Count
from read_statistics.utils import read_statistics_once_read
from .models import Blog, BlogType


# 分頁部分公共代碼
def blog_list_common_data(requests, blogs_all_list):
    paginator = Paginator(blogs_all_list, settings.EACH_PAGE_BLOGS_NUMBER)  # 第一個參數是所有內容，第二個是每頁多少
    page_num = requests.GET.get('page', 1)  # 獲取url的頁面參數（get請求）
    page_of_blogs = paginator.get_page(page_num)  # 從分頁器中獲取指定頁碼的內容

    current_page_num = page_of_blogs.number  # 獲取當前頁
    all_pages = paginator.num_pages
    if all_pages < 5:
        page_range = list(
            range(max(current_page_num - 2, 1),
                  min(all_pages + 1, current_page_num + 3)))  # 獲取須要顯示的頁碼 而且剔除不符合條件的頁碼
    else:
        if current_page_num <= 2:
            page_range = range(1, 5 + 1)
        elif current_page_num >= all_pages - 2:
            page_range = range(all_pages - 4, paginator.num_pages + 1)
        else:
            page_range = list(
                range(max(current_page_num - 2, 1),
                      min(all_pages + 1, current_page_num + 3)))  # 獲取須要顯示的頁碼 而且剔除不符合條件的頁碼

    blog_dates = Blog.objects.dates('created_time', 'month', order='DESC')
    blog_dates_dict = {}
    for blog_date in blog_dates:
        blog_count = Blog.objects.filter(created_time__year=blog_date.year, created_time__month=blog_date.month).count()
        blog_dates_dict = {
            blog_date: blog_count
        }

    return {
        'blogs': page_of_blogs.object_list,
        'page_of_blogs': page_of_blogs,
        'blog_types': BlogType.objects.annotate(blog_count=Count('blog')),  # 添加查詢並添加字段
        'page_range': page_range,
        'blog_dates': blog_dates_dict
    }


# 博客列表
def blog_list(requests):
    blogs_all_list = Blog.objects.all()  # 獲取所有博客
    context = blog_list_common_data(requests, blogs_all_list)
    return render(requests, 'blog/blog_list.html', context)


# 根據類型篩選
def blogs_with_type(requests, blog_type_pk):
    blog_type = get_object_or_404(BlogType, pk=blog_type_pk)
    blogs_all_list = Blog.objects.filter(blog_type=blog_type)  # 獲取所有博客
    context = blog_list_common_data(requests, blogs_all_list)
    context['blog_type'] = blog_type
    return render(requests, 'blog/blog_with_type.html', context)


# 根據日期篩選
def blogs_with_date(requests, year, month):
    blogs_all_list = Blog.objects.filter(created_time__year=year, created_time__month=month)  # 獲取所有博客
    context = blog_list_common_data(requests, blogs_all_list)
    context['blogs_with_date'] = '{}年{}日'.format(year, month)
    return render(requests, 'blog/blog_with_date.html', context)


# 博客詳情
def blog_detail(requests, blog_pk):
    blog = get_object_or_404(Blog, pk=blog_pk)
    obj_key = read_statistics_once_read(requests, blog)

    context = {
        'blog': blog,
        'previous_blog': Blog.objects.filter(created_time__gt=blog.created_time).last(),
        'next_blog': Blog.objects.filter(created_time__lt=blog.created_time).first(),
    }
    response = render(requests, 'blog/blog_detail.html', context)
    response.set_cookie(obj_key, 'true')

    return response
blog下的views.py 
"""
Django settings for myblog project.

Generated by 'django-admin startproject' using Django 2.1.3.

For more information on this file, see
https://docs.djangoproject.com/en/2.1/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/2.1/ref/settings/
"""

import os

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/2.1/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'ea+kzo_5k^6r7micfg@lar1(rfdc08@b4*+w5d11=0mp1p5ngr'

# SECURITY WARNING: don't run with debug turned on in production!2.
DEBUG = True

ALLOWED_HOSTS = ['*']

# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'ckeditor',
    'ckeditor_uploader',
    'blog.apps.BlogConfig',  # 將本身建立的app添加到設置中
    'read_statistics.apps.ReadStatisticsConfig',  # 註冊閱讀統計app
    'comment.apps.CommentConfig',  # 註冊評論
    'likes.apps.LikesConfig',  # 註冊點贊
    'user.apps.UserConfig',  # 用戶相關
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'blog.middleware.mymiddleware.My404',  # 添加本身的中間件
]

ROOT_URLCONF = 'myblog.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [
            os.path.join(BASE_DIR, 'templates'),
        ],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
                'user.context_processors.login_model_form',  # 自定義模板變量，直接用模板語言調用
            ],
        },
    },
]

WSGI_APPLICATION = 'myblog.wsgi.application'

# Database
# https://docs.djangoproject.com/en/2.1/ref/settings/#databases

DATABASES = {
    # 'default': {
    #     'ENGINE': 'django.db.backends.sqlite3',
    #     'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    # }
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'myblogs',  # 要鏈接的數據庫，鏈接前須要建立好
        'USER': 'root',  # 鏈接數據庫的用戶名
        'PASSWORD': 'felixwang',  # 鏈接數據庫的密碼
        'HOST': '127.0.0.1',  # 鏈接主機，默認本級
        'PORT': 3306  # 端口 默認3306
    }
}

# Password validation
# https://docs.djangoproject.com/en/2.1/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]

# Internationalization
# https://docs.djangoproject.com/en/2.1/topics/i18n/

# LANGUAGE_CODE = 'en-us'
# 語言
LANGUAGE_CODE = 'zh-hans'

# TIME_ZONE = 'UTC'
# 時區
TIME_ZONE = 'Asia/Shanghai'

USE_I18N = True

USE_L10N = True

# 不考慮時區
USE_TZ = False

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/2.1/howto/static-files/

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

# media
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')

# 配置ckeditor
CKEDITOR_UPLOAD_PATH = 'upload/'

# 自定義參數
EACH_PAGE_BLOGS_NUMBER = 7

# 設置數據庫緩存
CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.db.DatabaseCache',
        'LOCATION': 'my_read_num_cache_table',
    }
}

# ckeditor 代碼高亮,以及公式
CKEDITOR_CONFIGS = {
    'default': {
        'skin': 'moono',
        'tabSpaces': 4,
        'mathJaxLib': 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-MML-AM_CHTML',
        'toolbar': (
            ['div', 'Source', '-', 'Save', 'NewPage', 'Preview', '-', 'Templates'],
            ['Cut', 'Copy', 'Paste', 'PasteText', 'PasteFromWord', '-', 'Print',
             'SpellChecker', 'Scayt'],
            ['Undo', 'Redo', '-', 'Find', 'Replace', '-', 'SelectAll', 'RemoveFormat',
             '-', 'Maximize', 'ShowBlocks', '-', "CodeSnippet", 'Mathjax', 'Subscript',
             'Superscript'],
            ['Form', 'Checkbox', 'Radio', 'TextField', 'Textarea', 'Select', 'Button',
             'ImageButton', 'HiddenField'],
            ['Bold', 'Italic', 'Underline', 'Strike', '-'],
            ['NumberedList', 'BulletedList', '-', 'Outdent', 'Indent', 'Blockquote'],
            ['JustifyLeft', 'JustifyCenter', 'JustifyRight', 'JustifyBlock'],
            ['Link', 'Unlink', 'Anchor'],
            ['Image', 'Flash', 'Table', 'HorizontalRule', 'Smiley', 'SpecialChar',
             'PageBreak'], ['Styles', 'Format', 'Font', 'FontSize'],
            ['TextColor', 'BGColor'],),
        'extraPlugins': ','.join([
            'codesnippet',
            'mathjax',
            'dialog',
            'dialogui',
            'lineutils',
        ]),
    },
    'comment_ckeditor': {
        'toolbar': 'custom',
        'toolbar_custom': [
            ['Bold', 'Italic', 'Underline', 'Strike', 'Subscript', 'Superscript'],
            ['TextColor', 'BGColor', 'RemoveFormat'],
            ['NumberedList', 'BulletedList'],
            ['Link', 'Unlink'],
            ['Smiley', 'SpecialChar', 'Blockquote'],
        ],
        'width': 'auto',
        'height': '180',
        'tabSpace': 4,
        'removePlugins': 'elementspath',
        'resize_enabled': False,
    }
}
settings.py 
"""myblog URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/2.1/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  path('', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.urls import include, path
    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
"""
from django.contrib import admin
from django.urls import path, include
from django.conf import settings
from django.conf.urls.static import static
from . import views

urlpatterns = [
    path('', views.home, name='home'),  # 主頁路徑
    path('admin/', admin.site.urls),
    path('ckeditor', include('ckeditor_uploader.urls')),  # 配置上傳url
    path('blog/', include('blog.urls')),  # 博客app路徑
    path('comment/', include('comment.urls')),  # 博客app路徑
    path('likes/', include('likes.urls')),  # 博客app路徑
    path('user/', include('user.urls')),  # 博客app路徑
]

# 設置ckeditor的上傳
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
myblog下的urls.py 
# -*- coding: utf-8 -*-
# @Time    : 18-11-7 下午4:12
# @Author  : Felix Wang

from django.shortcuts import render
from django.contrib.contenttypes.models import ContentType
from read_statistics.utils import get_seven_days_read_data, get_x_days_hot_data
from blog.models import Blog


def home(requests):
    blog_content_type = ContentType.objects.get_for_model(Blog)
    dates, read_nums = get_seven_days_read_data(blog_content_type)

    context = {
        'read_nums': read_nums,
        'dates': dates,
        'today_hot_data': get_x_days_hot_data(0),  # 獲取今日熱門
        'yesterday_hot_data': get_x_days_hot_data(1),  # 獲取昨日熱門
        'seven_days_hot_data': get_x_days_hot_data(7),  # 獲取周熱門
        'one_month_hot_data': get_x_days_hot_data(30),  # 獲取月熱門
    }
    return render(requests, 'home.html', context)
myblog下的views.py 
{% load staticfiles %}

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <!-- 根據屏幕自動響應佈局 -->
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <title>
        {#  用來放標題  #}
        {% block title %}

        {% endblock %}
    </title>
    {# 加載css代碼 #}
    <link rel="stylesheet" href="{% static 'bootstrap4.1/bootstrap.min.css' %}">
    <link rel="stylesheet" href="{% static 'css/base.css' %}">

    {% block header_extends %}
        {#    用來作頭部擴展，如加載某些靜態文件     #}
    {% endblock %}
</head>
<body>

{# 導航欄 #}
<nav class="navbar navbar-expand-lg navbar-light bg-light sticky-top">
    <a class="navbar-brand" href="{% url 'home' %}">Felix Blog</a>

    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent"
            aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
    </button>


    <div class="collapse navbar-collapse" id="navbarSupportedContent">
        <ul class="navbar-nav mr-auto">
            <li class="nav-item nav-home"><a href="{% url 'home' %}" class="nav-link">首頁</a></li>
            <li class="nav-item nav-blog"><a href="{% url 'blog_list' %}" class="nav-link">博客</a></li>
        </ul>

        <ul class="navbar-nav">
            {% if not user.is_authenticated %}
                <li class="nav-item">
                    <a class="nav-link" href="{% url 'login' %}?from={{ request.get_full_path }}">登陸</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="{% url 'register' %}?from={{ request.get_full_path }}">註冊</a>
                </li>
            {% else %}
                <li class="nav-item dropdown">
                    <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button"
                       data-toggle="dropdown"
                       aria-haspopup="true" aria-expanded="false">
                        {{ user.username }}
                    </a>
                    <div class="dropdown-menu" aria-labelledby="navbarDropdown">
                        <a class="dropdown-item" href="{% url 'user_info' %}">我的資料</a>
                        <div class="dropdown-divider"></div>
                        <a class="dropdown-item" href="{% url 'logout' %}?from={{ request.get_full_path }}">登出</a>
                    </div>
                </li>
            {% endif %}
        </ul>
    </div>
</nav>

{# 用來放內容 #}
{% block content %}

{% endblock %}

<!-- Modal 登陸模態框 -->
<div class="modal fade" id="login_model" tabindex="-1" role="dialog"
     aria-labelledby="exampleModalCenterTitle" aria-hidden="true">
    <div class="modal-dialog modal-dialog-centered" role="document">
        <div class="modal-content">
            <form id="login_model_form" action="" method="post">
                <div class="modal-header">
                    <h5 class="modal-title">登陸</h5>
                    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                        <span aria-hidden="true">&times;</span>
                    </button>
                </div>
                <div class="modal-body">
                    {% csrf_token %}
                    {% for field in login_model_form %}
                        <label for="{{ field.id_for_label }}">{{ field.label }}</label>
                        {{ field }}
                    {% endfor %}
                    <span id="login_model_tip" class="text-danger"></span>
                </div>
                <div class="modal-footer">
                    <button type="submit" class="btn btn-primary">登陸</button>
                    <button type="button" class="btn btn-secondary" data-dismiss="modal">關閉</button>
                </div>
            </form>
        </div>
    </div>
</div>
<script>
    $('#login_model_form').submit(function (event) {
        $('#login_model_tip').text('');
        event.preventDefault(); // 阻止原事件提交
        $.ajax({
            url: '{% url 'login_for_model' %}',
            type: 'POST',
            data: $(this).serialize(),
            cache: false,
            success: function (data) {
                if (data['status'] === 'SUCCESS') {
                    window.location.reload();
                } else {
                    $('#login_model_tip').text('用戶名或密碼不正確')
                }
            }
        });
    })
</script>

{# js代碼放在後面能夠增長性能 #}
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="{% static 'js/jquery-3.3.1.min.js' %}"></script>
<script src="{% static 'bootstrap4.1/popper.min.js' %}"></script>
<script src="{% static 'bootstrap4.1/bootstrap.min.js' %}"></script>

{# 導入資源建議放在js代碼前 #}
{# 用來放js代碼 #}
{% block js %}

{% endblock %}

</body>
</html>
base.html 
# -*- coding: utf-8 -*-
# @Time    : 18-11-25 下午2:55
# @Author  : Felix Wang

from .forms import LoginForm


def login_model_form(requests):
    return {'login_model_form': LoginForm()}
context_processors.py 
# -*- coding: utf-8 -*-
# @Time    : 18-11-20 下午8:10
# @Author  : Felix Wang

from django import forms
from django.contrib import auth
from django.contrib.auth.models import User


class LoginForm(forms.Form):
    username = forms.CharField(label='用戶名', required=True,
                               widget=forms.TextInput(attrs={'class': 'form-control', 'placeholder': '請輸入用戶名'}))
    # widget指定input標籤類型
    password = forms.CharField(label='密碼',
                               widget=forms.PasswordInput(attrs={'class': 'form-control', 'placeholder': '請輸入密碼'}))

    def clean(self):  # 驗證數據
        username = self.cleaned_data['username']
        password = self.cleaned_data['password']
        user = auth.authenticate(username=username, password=password)
        if user is None:
            raise forms.ValidationError('用戶名或密碼錯誤')
        self.cleaned_data['user'] = user  # 將驗證過的user放入clean_data
        return self.cleaned_data


class RegisterForm(forms.Form):
    # 用戶名字段
    username = forms.CharField(label='用戶名',
                               max_length=30,
                               min_length=3,
                               required=True,
                               widget=forms.TextInput(attrs={'class': 'form-control', 'placeholder': '請輸入用戶名'}))
    # 郵箱字段
    email = forms.EmailField(label='郵箱',
                             min_length=3,
                             required=True,
                             widget=forms.EmailInput(attrs={'class': 'form-control', 'placeholder': '請輸入郵箱'}))
    # 密碼字段
    password = forms.CharField(label='密碼',
                               min_length=6,
                               required=True,
                               widget=forms.PasswordInput(
                                   attrs={'class': 'form-control', 'placeholder': '請輸入密碼'}))
    # 再次輸入密碼
    password_again = forms.CharField(label='確認密碼',
                                     min_length=6,
                                     required=True,
                                     widget=forms.PasswordInput(
                                         attrs={'class': 'form-control', 'placeholder': '請再輸入一次密碼'}))

    def clean_username(self):
        username = self.cleaned_data['username']
        if User.objects.filter(username=username).exists():
            raise forms.ValidationError('用戶名已存在')
        return username

    def clean_email(self):
        email = self.cleaned_data['email']
        if User.objects.filter(email=email).exists():
            raise forms.ValidationError('郵箱已存在')

        return email

    def clean_password_again(self):
        password = self.cleaned_data['password']
        password_again = self.cleaned_data['password_again']
        if password != password_again:
            raise forms.ValidationError('兩次輸入的密碼不一致')
        return password_again
user下的forms.py 
# -*- coding: utf-8 -*-
# @Time    : 18-11-4 下午5:22
# @Author  : Felix Wang

from django.urls import path
from . import views

urlpatterns = [
    path('login/', views.login, name='login'),  # 登陸
    path('logout/', views.logout, name='logout'),  # 登陸
    path('login_for_model/', views.login_for_model, name='login_for_model'),  # 登陸
    path('register/', views.register, name='register'),  # 登陸
    path('user_info/', views.user_info, name='user_info'),  # 登陸
]
user下的urls.py 
# -*- coding: utf-8 -*-
# @Time    : 18-11-7 下午4:12
# @Author  : Felix Wang

from django.shortcuts import render, redirect
from django.http import JsonResponse
from django.contrib import auth
from django.contrib.auth.models import User
from django.urls import reverse
from .forms import LoginForm, RegisterForm


def login(requests):
    # 若是是form表單提交驗證登陸
    if requests.method == 'POST':
        login_form = LoginForm(requests.POST)
        if login_form.is_valid():  # 驗證是否經過
            # 由於在form表單驗證過了，因此不用本身再驗證
            user = login_form.cleaned_data.get('user')
            auth.login(requests, user)
            return redirect(requests.GET.get('from', reverse('home')))
        else:
            login_form.add_error(None, '用戶名或密碼不正確')
    else:
        login_form = LoginForm()
    context = {
        'login_form': login_form,
    }
    return render(requests, 'user/login.html', context)


def login_for_model(requests):
    login_form = LoginForm(requests.POST)

    # 若是是form表單提交驗證登陸
    if login_form.is_valid():  # 驗證是否經過
        # 由於在form表單驗證過了，因此不用本身再驗證
        user = login_form.cleaned_data.get('user')
        auth.login(requests, user)

        data = {
            'status': 'SUCCESS',
        }
    else:
        data = {
            'status': 'ERROR',
        }
    return JsonResponse(data)


def register(requests):
    if requests.method == 'POST':
        reg_form = RegisterForm(requests.POST)
        if reg_form.is_valid():
            username = reg_form.cleaned_data['username']
            email = reg_form.cleaned_data['email']
            password = reg_form.cleaned_data['password']

            # 建立用戶
            user = User.objects.create_user(username=username, email=email, password=password)
            user.save()

            # 登陸用戶
            user = auth.authenticate(username=username, password=password)
            auth.login(requests, user)
            # 登陸以後跳轉
            return redirect(requests.GET.get('from', reverse('home')))
    else:
        reg_form = RegisterForm()

    context = {
        'reg_form': reg_form,
    }
    return render(requests, 'user/register.html', context)


def logout(requests):
    auth.logout(requests)
    return redirect(requests.GET.get('from', reverse('home')))


def user_info(requests):
    context = {}
    return render(requests, 'user/user_info.html', context)
views.py

三、解釋html

使用到了模板變量java

若是須要在模板裏直接使用模板變量，在app中新建context_processors.py,而後定義一個方法，返回一個字典。mysql

而後在settings中配置。jquery

實例：es6

# -*- coding: utf-8 -*-
# @Time    : 18-11-25 下午2:55
# @Author  : Felix Wang

from .forms import LoginForm


def login_model_form(requests):
    return {'login_model_form': LoginForm()}
context_processors.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.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
                'user.context_processors.login_model_form',  # 自定義模板變量，直接用模板語言調用
            ],
        },
    },
]
settings中添加設置 
{% login_model_form %}
模板中使用
相關文章
相關標籤/搜索
每日一句
    每一个你不满意的现在，都有一个你没有努力的曾经。
本站公眾號
   歡迎關注本站公眾號,獲取更多信息
聯繫我們 最近搜索 最新文章 沪ICP备13005482号-10 MyBatis教程 SQL 教程 MySQL教程 Java 教程 Thymeleaf 教程 Hibernate教程 Spring教程 Redis教程