第一个Django项目：博客案例

程序员文章站 2024-03-04 21:01:42

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1.项目结构：

第一个Django项目：博客案例

2.Blog.settings.py中的INSTALLED_APPS添加'index',属性值。可以搜索到index页面。

3.配置主从urls：在Blog里配置主urls，可以映射到从urls。这样配置可以方便以后的URL管理。

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^blog/', include("index.urls")),
]

4.开发index主项目：

index/admin.py

class ArticleAdmin(admin.ModelAdmin):
    list_display = ['id','title','context','author','Article_classification','create_time']
    list_filter = ('create_time','Article_classification')
    #为后台添加的分类器
admin.site.register(Article,ArticleAdmin)

5.index/models.py

class Article(models.Model):
    title=models.CharField(max_length=32,default='title')
    context=models.TextField(null=True,blank=True)
    create_time=models.DateField(auto_now=True)
    author=models.CharField(max_length=32,default='author')
    Article_classification=models.CharField(max_length=64,default='默认分类')

    def __str__(self):
        return self.title

6.index/urls.py

app_name="blog"


urlpatterns = [
    url(r'^index/', views.index,name="index"),
    url(r'^detail/(?P<art_id>[0-9]+)', views.article_content,name='detail'),
    url(r'^edit/(?P<art_id>[0-9]+)', views.article_edit,name="edit"),
    url(r'^edit_action/',views.edit_action,name="edit_action"),
    url(r'^dele_article/(?P<art_id>[0-9]+)',views.dele_article,name="dele_article"),
]

7.index/views.py

from django.shortcuts import render
from .models import Article
# Create your views here.
def index(request):
    articles=Article.objects.all()
    return render(request,"index.html",{'articles':articles})

def article_content(request,art_id):#文章详情页
    artcle=Article.objects.get(pk=art_id)
    return render(request,"content.html",{'art':artcle})

def article_edit(request,art_id):#文章编辑页
    if str(art_id)=='0':
        return render(request,"edit.html")
    else:
        art=Article.objects.get(pk=art_id)
        return render(request,"edit.html",{'art':art})

def edit_action(request):#文章修改和发布新文章
    title=request.POST.get("title","DEFAULT")
    content=request.POST.get("content","DEFAULT")
    author=request.POST.get("author","author")
    classification=request.POST.get("classification","默认分类")
    art_id=request.POST.get("art_id","0")
    if art_id=='0':
        Article.objects.create(title=title,context=content,author=author,Article_classification=classification)
        arts=Article.objects.all()
        return render(request,"index.html",{'articles':arts})
    else:
        article=Article.objects.get(pk=art_id)
        article.title=title
        article.context=content
        article.author=author
        article.Article_classification=classification
        article.save()
        article=Article.objects.get(pk=art_id)
        return render(request,"content.html",{'art':article})

def dele_article(request,art_id):
    Article.objects.get(pk=art_id).delete()
    article = Article.objects.all()
    return render(request,"index.html",{'articles':article})

3.html模板开发:

3.1详情页content

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>文章详情页</title>
</head>
<body>
    <label>主题：</label><h2>{{ art.title }}</h2>
    <label>详情：</label><h3>{{ art.context }}</h3>
    <label>文章作者：</label><h3>{{ art.author }}</h3>
    <label>文章分类：</label><h3>{{ art.Article_classification }}</h3>
    <br>
    <br>
    <a style="text-decoration-line: none" href="{% url 'blog:edit' art.id %}">修改文章</a>
    <br>
    <a style="text-decoration-line: none" href="{% url 'blog:dele_article' art.id %}">删除文章</a>
    <br>
    <a style="text-decoration-line: none" href="{% url 'blog:index' %}">返回主页</a>
</body>
</html>

3.2编辑页edit

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>发布新文章</title>
</head>
<body>
    <form action="{% url "blog:edit_action" %}" method="post">
        {% csrf_token %}
        {% if art %}
            <input type="hidden" value="{{ art.id }}" name="art_id">
            <br>
            <label><h3>文章标题</h3></label>
            <input type="text" name="title" value="{{ art.title }}">
            <br>
            <br>
            <label><h3>文章内容</h3></label>
            <input type="text" name="content" value="{{ art.context }}">
            <br>
            <label><h3>文章作者</h3></label>
            <input type="text" name="author" value="{{ art.author }}">
            <br>
            <label><h3>文章分类</h3></label>
            <input type="text" name="classification" value="{{ art.Article_classification }}">
        {% else %}
            <input type="hidden" value="0" name="art_id">
            <label><h2>文章标题</h2></label>
            <input type="text" name="title">
            <br>
            <br>
            <label><h2>文章内容</h2></label>
            <input type="text" name="content">
            <br>
            <label><h3>文章作者</h3></label>
            <input type="text" name="author" value="{{ art.author }}">
            <br>
            <label><h3>文章分类</h3></label>
            <input type="text" name="classification" value="{{ art.Article_classification }}">
        {% endif %}
        <br>
        <br>
        <input type="submit" value="提交保存">
    </form>
    <a style="text-decoration-line: none" href="{% url 'blog:index' %}">返回主页</a>
</body>
</html>

3.3：index主页

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>欢迎来到我的博客</title>
</head>
<body>
    <h1>我的博客列表</h1>
    <br>
    {% for art in articles %}
        <a style="text-decoration-line: none" href="{% url 'blog:detail' art.id %}"><h2>{{ forloop.counter }}   {{ art.title }}</h2></a>
    {% endfor %}
    <br>
    <br>
    <a style="text-decoration-line: none" href="{% url 'blog:edit' 0 %}">发布新文章</a>

</body>
</html>

4.运行截图：

主页：展示所有博客主题详情页：展示博客内容发布文章页面

第一个Django项目：博客案例