django开发流程3（轮播图）

1.在models中创建一个模板

class Ads(models.Model):title = models.CharField(verbose_name="标题", max_length=30)image = models.ImageField(verbose_name="广告图", upload_to="ads")url = models.URLField(verbose_name="链接网址", default="http://www.baidu.com")def __str__(self):return self.titleclass Meta:verbose_name = "轮播图"verbose_name_plural = "轮播图"

2.安装一个图片处理模块 pip install  Pillow

3.生成迁移文件并迁移

python .\manage.py makemigrations

python .\manage.py migrate

4.修改媒体路径

首先在models中 upload_to="ads"

然后在settings中

当你运行添加轮播图时，照片会自动放入

5.预览图片

6.配置后台

7.配置轮播图

1.views里面添加Ads

2.在index.html中引入轮播图样式

{% extends 'base/base.html'  %}{% block title %}
<title>首页</title>
{% endblock %}{% block body %}{{ cs }}
<div class="row">
<div class="col-md-8 col-md-offset-2"><div id="carousel-example-generic" class="carousel slide" data-ride="carousel"><!-- Indicators --><ol class="carousel-indicators">{% for ads in adss %}{% if forloop.first %}<li data-target="#carousel-example-generic" data-slide-to="{{ forloop.counter0 }}" class="active"></li>{% else %}<li data-target="#carousel-example-generic" data-slide-to="{{ forloop.counter0 }}"></li>{% endif %}{% endfor %}</ol><!-- Wrapper for slides --><div class="carousel-inner" role="listbox">{% for ads in adss %}{% if forloop.first %}<div class="item active">{% else %}<div class="item">{% endif %}{{ ads.image }}<img src="/media/{{ ads.image }}" alt="..."><div class="carousel-caption">{{ ads.title }}</div></div>{% endfor %}</div><!-- Controls --><a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev"><span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span><span class="sr-only">Previous</span></a><a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next"><span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span><span class="sr-only">Next</span></a></div></div></div>
</div><div class="row"><div class="col-md-8 col-md-offset-2"><!-- Nav tabs --><ul class="nav nav-tabs" role="tablist">{% for c in cs %}{% if forloop.first %}<li role="presentation" class="active"><a href="#tab{{ c.id }}" aria-controls="{{ c.id }}" role="tab" data-toggle="tab">{{ c.title }}</a></li>{% else %}<li role="presentation"><a href="#tab{{ c.id }}" aria-controls="{{ c.id }}" role="tab" data-toggle="tab">{{ c.title }}</a></li>{% endif %}{% endfor %}</ul><!-- Tab panes --><div class="tab-content">{% for c in cs %}{% if forloop.first %}<div role="tabpanel" class="tab-pane active" id="tab{{ c.id }}">{% else %}<div role="tabpanel" class="tab-pane" id="tab{{ c.id }}">{% endif %}<ul class="list-group">{% for b in c.book_set.all %}<li class="list-group-item"><a href="/detail/{{ b.id }}">{{ b.title }}</a></li>{% endfor %}</ul></div>{% endfor %}</div></div></div></div>
{% endblock %}