Django模板语言之组合搜索
url.py
1 from django.conf.urls import url 2 from django.contrib import admin 3 from app01 import views 4 urlpatterns = [ 5 # url(r'^admin/', admin.site.urls), 6 # url(r'^index/', views.index), 7 # url(r'^student/', views.student), 8 # url(r'^student1.html', views.student1),
#direction_id,classification_id,level_id作为参数传递给def video(request, *arg, **kwargs):
9 url(r'^video-(?P<direction_id>\d+)-(?P<classification_id>\d+)-(?P<level_id>\d+).html', views.video), 10 ]
1 from django.db import models 2 3 class Direction(models.Model): 4 weight = models.IntegerField(verbose_name='权重（按从大到小排列）', default=0) 5 name = models.CharField(verbose_name='名称', max_length=32) 6 7 classification = models.ManyToManyField('Classification') 8 9 class Meta: 10 db_table = 'Direction' 11 verbose_name_plural = u'方向（视频方向）' 12 13 def __str__(self): 14 return self.name 15 16 17 class Classification(models.Model): 18 weight = models.IntegerField(verbose_name='权重（按从大到小排列）', default=0) 19 name = models.CharField(verbose_name='名称', max_length=32) 20 21 class Meta: 22 db_table = 'Classification' 23 verbose_name_plural = u'分类（视频分类）' 24 25 def __str__(self): 26 return self.name 27 28 29 class Video(models.Model): 30 31 status_choice = ( 32 (0, u'下线'), 33 (1, u'上线'), 34 ) 35 level_choice = ( 36 (1, u'初级'), 37 (2, u'中级'), 38 (3, u'高级'), 39 ) 40 status = models.IntegerField(verbose_name='状态', choices=status_choice, default=1) 41 level = models.IntegerField(verbose_name='级别', choices=level_choice, default=1) 42 classification = models.ForeignKey('Classification', null=True, blank=True) 43 44 weight = models.IntegerField(verbose_name='权重（按从大到小排列）', default=0) 45 46 title = models.CharField(verbose_name='标题', max_length=32) 47 summary = models.CharField(verbose_name='简介', max_length=32) 48 img = models.ImageField(verbose_name='图片', upload_to='./static/images/Video/') 49 href = models.CharField(verbose_name='视频地址', max_length=256) 50 51 create_date = models.DateTimeField(auto_now_add=True) 52 53 class Meta: 54 db_table = 'Video' 55 verbose_name_plural = u'视频' 56 57 def __str__(self): 58 return self.title
1 import json 2 from django.shortcuts import render,HttpResponse 3 from app01 import models 4 def video(request,*args,**kwargs): 5 print("www",kwargs)#**kwargs为字典:{'direction_id': '0', 'classification_id': '0', 'level_id': '0'} 6 print(request.path) 7 # 获取当前url:/video-0-0-0.html 8 request_path = request.path#获取当前url:/video-0-0-0.html 9 10 11 q = {} 12 q['status'] = 1 13 14 class_id = int(kwargs.get('classification_id'))#获取视频分类__方向id 15 16 direction_list = models.Direction.objects.all().values('id','name')#获取所有方向表的id和name 17 18 if kwargs.get('direction_id') == '0':#如果方向__视频分类id等于0 19 # 方向选择全部 20 print('方向等于0') 21 class_list = models.Classification.objects.all().values('id', 'name')#获取所有视频分类的id和name 22 if kwargs.get('classification_id') == '0':#如果视频分类__方向id等于0 23 pass 24 else: 25 # 当前分类是 1 26 q['classification_id__in'] = [class_id,] 27 28 else: 29 print('方向不为0') 30 # 方向选择某一个方向， 31 # 如果分类是0 32 if kwargs.get('classification_id') == '0': 33 print('分类为0') 34 obj = models.Direction.objects.get(id=int(kwargs.get('direction_id')))#获取当前方向id 35 class_list = obj.classification.all().values('id', 'name')#获取当前方向的视频分类id和name 36 print(class_list) 37 id_list = list(map(lambda x: x['id'], class_list))#获取x['id']的值 38 print(id_list) 39 q['classification_id__in'] = id_list 40 else: 41 42 obj = models.Direction.objects.get(id=int(kwargs.get('direction_id'))) 43 class_list = obj.classification.all().values('id', 'name') 44 id_list = list(map(lambda x:x['id'], class_list)) 45 q['classification_id__in'] = [class_id,] 46 print('分类不为0') 47 # 当前分类如果在获取的所有分类中，则方向下的所有相关分类显示 48 # 当前分类如果不在获取的所有分类中， 49 # if kwargs.get('classification_id') in 50 if int(kwargs.get('classification_id')) in id_list: 51 pass 52 else: 53 print('不再,获取指定方向下的所有分类：选中的回到全部') 54 url_part_list = request_path.split('-') 55 url_part_list[2] = '0' 56 request_path = '-'.join(url_part_list) 57 58 level_id = int(kwargs.get('level_id')) 59 if level_id == 0: 60 pass 61 else: 62 q['level'] = level_id 63 64 # models.Video.objects.filter(status=1) 65 video_list = models.Video.objects.filter(**q).values('title','summary', 'img', 'href') 66 67 68 # level_list = models.Video.level_choice 69 70 ret = map(lambda x:{"id": x[0], 'name': x[1]}, models.Video.level_choice) 71 level_list = list(ret) 72 return render(request, 'video.html', {'direction_list': direction_list, 73 'class_list': class_list, 74 'level_list': level_list, 75 'current_url': request_path, 76 "video_list": video_list})
{% load xx %} <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <style> a{ display: inline-block; padding: 8px; } .active{ background-color: coral; color: white; } .item{ display: inline-block; width: 300px; height: 400px; } .item img{ border: 0; width: 300px; height: 280px; overflow: hidden; } </style> </head> <body> <h3>选择：</h3> <div> {% action_all current_url 1 %} : {% for item in direction_list %} {% action1 current_url item %} {% endfor %} </div> <div> {% action_all current_url 2 %} : {% for item in class_list %} {% action2 current_url item %} {% endfor %} </div> <div> {% action_all current_url 3 %} : {% for item in level_list %} {% action3 current_url item %} {% endfor %} </div> <hr /> <div>
from django import template from django.utils.safestring import mark_safe from django.template.base import Node, TemplateSyntaxError register = template.Library() @register.simple_tag def action1(current_url, item): # videos-0-0-1.html # item: id name # video- 2 -0-0.html url_part_list = current_url.split('-') # 如果当前url中第一个位置 video-2-0-0.html if str(item['id']) == url_part_list[1]: temp = "<a href='%s' class='active'>%s</a>" else: temp = "<a href='%s'>%s</a>" url_part_list[1] = str(item['id']) ur_str = '-'.join(url_part_list) temp = temp %(ur_str, item['name']) return mark_safe(temp) @register.simple_tag def action2(current_url, item): # videos-0-0-1.html # item: id name url_part_list = current_url.split('-') # 如果当前url中第一个位置 video-2-0-0.html if str(item['id']) == url_part_list[2]: temp = "<a href='%s' class='active'>%s</a>" else: temp = "<a href='%s'>%s</a>" url_part_list[2] = str(item['id']) ur_str = '-'.join(url_part_list) temp = temp %(ur_str, item['name']) return mark_safe(temp) @register.simple_tag def action3(current_url, item): # videos-0-0-1.html # item: id name url_part_list = current_url.split('-') # 如果当前url中第三个位置 video-2-0-0.html if str(item['id']) == url_part_list[3].split('.')[0]: temp = "<a href='%s' class='active'>%s</a>" else: temp = "<a href='%s'>%s</a>" url_part_list[3] = str(item['id']) + '.html' ur_str = '-'.join(url_part_list) temp = temp %(ur_str, item['name']) return mark_safe(temp) @register.simple_tag def action_all_1(current_url): """ 获取当前url，video-1-1-2.html :param current_url: :param item: :return: """ url_part_list = current_url.split('-') if url_part_list[1] == "0": temp = "<a href='%s' class='active'>全部</a>" else: temp = "<a href='%s'>全部</a>" url_part_list[1] = "0" # video 0 1 2.html href = '-'.join(url_part_list) temp = temp % (href,) return mark_safe(temp) @register.simple_tag def action_all_2(current_url): """ 获取当前url，video-1-1-2.html :param current_url: :param item: :return: """ url_part_list = current_url.split('-') if url_part_list[2] == "0": temp = "<a href='%s' class='active'>全部</a>" else: temp = "<a href='%s'>全部</a>" url_part_list[2] = "0" # video 0 1 2.html href = '-'.join(url_part_list) temp = temp % (href,) return mark_safe(temp) @register.simple_tag def action_all_3(current_url): """ 获取当前url，video-1-1-2.html :param current_url: :param item: :return: """ url_part_list = current_url.split('-') # video 0 1 2.html if url_part_list[3] == "0.html": temp = "<a href='%s' class='active'>全部</a>" else: temp = "<a href='%s'>全部</a>" url_part_list[3] = "0.html" href = '-'.join(url_part_list) temp = temp % (href,) return mark_safe(temp) @register.simple_tag def action_all(current_url,index): """ 获取当前url，video-1-1-2.html :param current_url: :param item: :return: """ url_part_list = current_url.split('-') if index == 3: if url_part_list[index] == "0.html": temp = "<a href='%s' class='active'>全部</a>" else: temp = "<a href='%s'>全部</a>" url_part_list[index] = "0.html" else: if url_part_list[index] == "0": temp = "<a href='%s' class='active'>全部</a>" else: temp = "<a href='%s'>全部</a>" url_part_list[index] = "0" href = '-'.join(url_part_list) temp = temp % (href,) return mark_safe(temp)
