组件搜索入门

于 2019-09-18 15:45:00 发布
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CC 4.0 BY-SA版权
文章标签： python
原文链接：http://www.cnblogs.com/wenghao/p/11542789.html

html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .condition a{
            display: inline-block;
            padding: 5px 8px;
            border: 1px solid #dddddd;
        }
        .condition a.active{
            background-color: coral;
            color: white;
        }
    </style>
</head>
<body>
    <div class="condition">
        <h1>筛选</h1>
        <div>
{#        全部进行的判断#}
            {% if kwargs.classification_id == 0 %}
                <a class="active" href="/video-0-{{ kwargs.level_id }}-{{ kwargs.status }}.html">全部</a>
            {% else %}
                 <a  href="/video-0-{{ kwargs.level_id }}-{{ kwargs.status }}.html">全部</a>
            {% endif %}
            {% for item in class_list %}
                {% if item.id == kwargs.classification_id %}
                    <a href="/video-{{ item.id }}-{{ kwargs.level_id }}-{{ kwargs.status }}.html" class="active">{{ item.name }}</a>
{#                    这里取的第一个是链接里要更换的，后面取取固定的#}
                {% else %}
                    <a href="/video-{{ item.id }}-{{ kwargs.level_id }}-{{ kwargs.status }}.html">{{ item.name }}</a>
                {% endif %}
            {% endfor %}
        </div>
        <div>
            <a href="/video-{{ kwargs.classification_id }}-0-{{ kwargs.status }}.html">全部</a>
            {% for item in level_list %}
                {% if item.id == kwargs.level_id %}
                    <a href="/video-{{ kwargs.classification_id }}-{{ item.id }}-{{ kwargs.status }}.html" class="active">{{ item.title }}</a>
                {% else %}
                    <a href="/video-{{ kwargs.classification_id }}-{{ item.id }}-{{ kwargs.status }}.html">{{ item.title }}</a>
                {% endif %}
            {% endfor %}
        </div>
        <div>
            <a href="/video-{{ kwargs.classification_id }}-{{ kwargs.level_id }}-0.html">全部</a>
            {% for item in status_list %}
                {% if item.id == kwargs.status %}
                    <a class="active" href="/video-{{ kwargs.classification_id }}-{{ kwargs.level_id }}-{{ item.id }}.html">{{ item.name }}</a>
                {% else %}
                    <a href="/video-{{ kwargs.classification_id }}-{{ kwargs.level_id }}-{{ item.id }}.html">{{ item.name }}</a>
                {% endif %}
            {% endfor %}
        </div>

    </div>
    <div>
        <h1>结果</h1>
        <div>
            {% for row in video_list %}
                <div>{{ row.title }}</div>
            {% endfor %}
        </div>
    </div>
</body>
</html>

　　

views

from django.shortcuts import render
from app01 import models

def video(request,*args,**kwargs):
    print(kwargs)
    condition = {
        # 'level_id': 0,
        # 'classification_id': 0,
    }
    for k,v in kwargs.items():
        temp = int(v)
        kwargs[k] = temp
        if temp:#当其为0时不用进行搜索，models.Video.objects.filter(**condition)，因为这等于是全部不用进行排除
            condition[k] = temp

    class_list = models.Classification.objects.all()
    level_list = models.Level.objects.all()
    """
    status_choice = (
        (1, '下线'),
        (2, '上线'),
    )
    """
    status_list = list(map(lambda x:{'id':x[0],'name':x[1]},models.Video.status_choice))

    video_list = models.Video.objects.filter(**condition)#这里的filter是寻找多个符合要求的标准，如下
    # 'level_id': 0,
    # 'classification_id': 0,
    return render(
        request,
        'video.html',
        {
            'class_list':class_list,
            'level_list':level_list,
            'status_list':status_list,
            'kwargs':kwargs,
            'video_list':video_list,
        }
    )

def video2(request,*args,**kwargs):
    condition = {}

    for k, v in kwargs.items():
        temp = int(v)
        kwargs[k] = temp
    print(kwargs) #　(?P<direction_id>(\d+))-(?P<classification_id>(\d+))-(?P<level_id>(\d+))
    # 构造查询字典
    direction_id = kwargs.get('direction_id')
    classification_id = kwargs.get('classification_id')
    level_id = kwargs.get('level_id')

    direction_list = models.Direction.objects.all()

    if direction_id == 0:
        class_list = models.Classification.objects.all()
        if classification_id == 0:
            pass
        else:
            condition['classification_id'] = classification_id
    else:
        direction_obj = models.Direction.objects.filter(id=direction_id).first()
        class_list = direction_obj.classification.all()

        vlist = direction_obj.classification.all().values_list('id')
        if not vlist:
            classification_id_list = []
        else:
            classification_id_list = list(zip(*vlist))[0]

        if classification_id == 0:
            condition['classification_id__in'] = classification_id_list
        else:
            if classification_id in classification_id_list:
                condition['classification_id'] = classification_id
            else:
                #################指定方向：[1,2,3]   分类：5
                condition['classification_id__in'] = classification_id_list

    if level_id == 0:
        pass
    else:
        condition['level_id'] = level_id

    level_list = models.Level.objects.all()

    video_list = models.Video.objects.filter(**condition)

    return render(
        request,
        'video2.html',
        {
            'direction_list':direction_list,
            'class_list':class_list,
            'level_list':level_list,
            'video_list':video_list,
        }
    )
    """
    如果：direction_id 0
        *列出所有的分类
        如果 classification_id = 0：
            pass
        else:
            condition['classification_id'] = classification_id

    否则：direction_id != 0
        *列表当前方向下的所有分类
         如果 classification_id = 0：
            获取当前方向下的所有分类 [1,2,3,4]
            condition['classification_id__in'] = [1,2,3,4]
         else:
            classification_id != 0
            获取当前方向下的所有分类 [1,2,3,4]
            classification_id 是否在 [1,2,3,4]  :
                condition['classification_id'] = classification_id
            else:
                condition['classification_id__in'] = [1,2,3,4]


    """
    # models.Video.objects.filter()
    # return render(request,'video2.html')

　　urls

from django.conf.urls import url
from django.contrib import admin
from app01 import views
urlpatterns = [
    url(r'^admin/', admin.site.urls),
    # url(r'^video-(?P<class_id>(\d+))-(?P<level_id>(\d+)).html$', views.video),
    url(r'^video-(?P<classification_id>(\d+))-(?P<level_id>(\d+))-(?P<status>(\d+)).html$', views.video),
    # url(r'^video.html', views.video),
    url(r'^video2-(?P<direction_id>(\d+))-(?P<classification_id>(\d+))-(?P<level_id>(\d+)).html$', views.video2),
]

　　

from django.shortcuts import render
from app01 import models

def video(request,*args,**kwargs):
print(kwargs)
    condition = {
# 'level_id': 0,
        # 'classification_id': 0,
}
for k,v in kwargs.items():
        temp = int(v)
        kwargs[k] = temp
if temp:#当其为0时不用进行搜索，models.Video.objects.filter(**condition)，因为这等于是全部不用进行排除
condition[k] = temp

    class_list = models.Classification.objects.all()
    level_list = models.Level.objects.all()
"""
    status_choice = (
        (1, '下线'),
        (2, '上线'),
    )
    """
status_list = list(map(lambda x:{'id':x[0],'name':x[1]},models.Video.status_choice))

    video_list = models.Video.objects.filter(**condition)#这里的filter是寻找多个符合要求的标准，如下
    # 'level_id': 0,
    # 'classification_id': 0,
return render(
        request,
'video.html',
        {
'class_list':class_list,
'level_list':level_list,
'status_list':status_list,
'kwargs':kwargs,
'video_list':video_list,
        }
    )

def video2(request,*args,**kwargs):
    condition = {}

for k, v in kwargs.items():
        temp = int(v)
        kwargs[k] = temp
print(kwargs) #　(?P<direction_id>(\d+))-(?P<classification_id>(\d+))-(?P<level_id>(\d+))
    # 构造查询字典
direction_id = kwargs.get('direction_id')
    classification_id = kwargs.get('classification_id')
    level_id = kwargs.get('level_id')

    direction_list = models.Direction.objects.all()

if direction_id == 0:
        class_list = models.Classification.objects.all()
if classification_id == 0:
pass
        else:
            condition['classification_id'] = classification_id
else:
        direction_obj = models.Direction.objects.filter(id=direction_id).first()
        class_list = direction_obj.classification.all()

        vlist = direction_obj.classification.all().values_list('id')
if not vlist:
            classification_id_list = []
else:
            classification_id_list = list(zip(*vlist))[0]

if classification_id == 0:
            condition['classification_id__in'] = classification_id_list
else:
if classification_id in classification_id_list:
                condition['classification_id'] = classification_id
else:
#################指定方向：[1,2,3]   分类：5
condition['classification_id__in'] = classification_id_list

if level_id == 0:
pass
    else:
        condition['level_id'] = level_id

    level_list = models.Level.objects.all()

    video_list = models.Video.objects.filter(**condition)

return render(
        request,
'video2.html',
        {
'direction_list':direction_list,
'class_list':class_list,
'level_list':level_list,
'video_list':video_list,
        }
    )
"""
    如果：direction_id 0
        *列出所有的分类
        如果 classification_id = 0：
            pass
        else:
            condition['classification_id'] = classification_id

    否则：direction_id != 0
        *列表当前方向下的所有分类
         如果 classification_id = 0：
            获取当前方向下的所有分类 [1,2,3,4]
            condition['classification_id__in'] = [1,2,3,4]
         else:
            classification_id != 0
            获取当前方向下的所有分类 [1,2,3,4]
            classification_id 是否在 [1,2,3,4]  :
                condition['classification_id'] = classification_id
            else:
                condition['classification_id__in'] = [1,2,3,4]


    """
# models.Video.objects.filter()
    # return render(request,'video2.html')

转载于:https://www.cnblogs.com/wenghao/p/11542789.html

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