关于 Django 过滤，我在哪里出错了

Question

我想为我的闪存卡创建一个搜索栏，我想过滤，这是我的 views.py 文件夹，但我编写的代码不起作用。

我的数据库中有单词卡（用于外语记忆的闪存卡）。我希望能够专门在这些卡片中进行搜索，我希望出现属于我在输入中输入的单词的卡片。

这是我在我的 html 页面中的搜索输入：

<div class="input-group">
    <div class="form-outline">
        <input type="text" name="search" class="form-control" />
        <label class="form-label">Search</label>
    </div>
    <button type="button" class="btn btn-primary">
        <i class="fas fa-search"></i>
    </button>
</div>

---

在这里，我尝试使用“搜索”获取输入中输入的值 过滤器中我的数据库“tr”中卡片的名称

---

def ingilizce(request):

    if 'search' in request.GET:
        search = request.GET['search']
        words = english.objects.filter(tr=search)

    else:
        words = english.objects.all()

    randomclass = random.choice(
        ['bg-success', 'bg-primary', 'bg-dark', 'bg-warning', 'bg-primary'])

    paginator = Paginator(words, 6) 
    page_number = request.GET.get('page', 1)  

    try:
        page = paginator.page((page_number))
    except: 
        page = paginator.page(1)

    return render(request, 'english.html', {'words': page, 'randomclass': randomclass})

---

这是我的models.py

---

from django.db import models


    class english(models.Model):
        tr = models.CharField(max_length=50, verbose_name="tr")
        ing = models.CharField(max_length=50, verbose_name="ing")
    
        def __str__(self):
            return self.tr

---

urls.py

---

from django.contrib import admin
from django.urls import path
from . import views

urlpatterns = [
    path('admin/', admin.site.urls),
    path('english', views.ingilizce, name='english'),
    path('addWord', views.addWord, name='add'),
    path('deleteWord/<int:id>', views.deleteWord, name='deleteWord'),
]

Answer 1

您应该使用in 查询过滤器：-

def ingilizce(request):
search = request.GET.get('search', None)
print("Input search value : {}".format(search)) # for debugging
if search:
    words = english.objects.filter(tr__in=search)
else:
    words = english.objects.all()

您需要使用 JS 调用视图，如下所示：-

var search = document.getElementById("search");
search.addEventListener("keyup", function(event) {
  event.preventDefault();
  if (event.keyCode === 13) {
    var url = '/english/?search='+search.value  // place your url here
    window.open(url, "_self");
  }
});