如何根据用户搜索的内容显示结果 django

Question

我有一个显示数据库详细信息的网页，我有一个搜索栏，它只会根据接收编号和零件编号进行搜索，但是每当我输入详细信息时，它都不会在表格的形式。示例如下：

从 URL 可以看出，它设法显示搜索 = 接收号码，但该表仍显示来自数据库的全部数据，而不是仅显示用户搜索的整行数据接待号码。如何让它以表格的形式显示用户根据接收号和零件号搜索的数据？

views.py

@login_required(login_url='login')
def gallery(request):
    search_post = request.GET.get('reception')
    search_partno = request.GET.get('partno')

    if search_post:
        allusername = Photo.objects.filter(Q(reception__icontains=search_post) & Q(partno__icontains=search_partno))
    else:
        allusername = Photo.objects.all().order_by("-Datetime")

    context = {'allusername': allusername}

    return render(request, 'photos/gallery.html', context)

图库.html

    {% extends "logisticbase.html" %}
    {% block content %}
    <style>
    table {
        border-collapse:separate;
        border:solid black 1px;
        border-radius:6px;
        -moz-border-radius:6px;
    }
    
    td, th {
        border-left:solid black 1px;
        border-top:solid black 1px;
    }
    
    th {
        border-top: none;
    }
    
    td:first-child, th:first-child {
         border-left: none;
    }
    
    
    
    </style>
    <script>
      
    
     // Function to download table data into csv file
            function download_table_as_csv(table_id, separator = ',') {
                var rows = document.querySelectorAll('table#' + table_id + ' tr');
                var csv = [];
                for (var i = 0; i < rows.length; i++) {
                    var row = [], cols = rows[i].querySelectorAll('td, th');
                    for (var j = 0; j < cols.length; j++) {
                        var data = cols[j].innerText.replace(/(\r\n|\n|\r)/gm, '').replace(/(\s\s)/gm, ' ')
                        data = data.replace(/"/g, '""');
                        row.push('"' + data + '"');
                    }
                    csv.push(row.join(separator));
                }
                var csv_string = csv.join('\n');
                var filename = 'export_' + table_id + '_' + new Date().toLocaleDateString() + '.csv';
                var link = document.createElement('a');
                link.style.display = 'none';
                link.setAttribute('target', '_blank');
                link.setAttribute('href', 'data:text/csv;charset=utf-8,' + encodeURIComponent(csv_string));
                link.setAttribute('download', filename);
                document.body.appendChild(link);
                link.click();
                document.body.removeChild(link);
            };
    
    </script>
    
    
       <div style="padding-left:16px">
         <br>
    
    
     <div class="form-block">
         <form class="form-inline my-2 my-lg-0" action="{% url 'gallery' %}">
        <input class="form-control mr-sm-2" type="search"   placeholder="Search" aria-label="Search" name="search">
        <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
    </form>
    
       <table id="viewTable" class="m-2">
            <i class="fa fa-download" aria-hidden="true"></i>
                <a href="#" onclick="download_table_as_csv('viewTable');">Download as CSV</a>
           <br>
    
      <tr class="header">
        <th>Latest Log</th>
          <th>Part Number</th>
          <th>Serial Number</th>
          <th>Reception/MCO Number</th>
          <th>Customer Name</th>
          <th>Status</th>
      </tr>
             {% for photo in allusername %}
    
    
      <tr>
            <td>{{photo.Datetime}}</td>
          <td>{{photo.partno}}</td>
          <td>{{photo.serialno}}</td>
          <td>{{photo.reception}}/ {{photo.mcoNum}}</td>
          <td>{{photo.Customername}}</td>
          <td>{{photo.status}}</td>
    
      </tr>
    
    {% endfor %}
    
    </table>
         <br>
    
    
    
    
    </div>
       </div>

{% endblock %}

更新代码：

如果我更改为这段代码，它仍然无法根据他们搜索的内容显示结果。

views.py

@login_required(login_url='login')
def gallery(request):
    search_post = request.GET.get('reception')
    search_partno = request.GET.get('partno')
    allusername = []
    if search_post or search_partno:
        allusername = Photo.objects.filter(Q(reception__icontains=search_post) | Q(partno__icontains=search_partno))
    if not allusername:
        allusername = Photo.objects.all().order_by("-Datetime")

    context = {'allusername': allusername}

    return render(request, 'photos/gallery.html', context)

Answer 1

试试这样的。
在您的模板中更改：

 <form class="form-inline my-2 my-lg-0" action="{% url 'gallery' %}">
        <input class="form-control mr-sm-2" type="search"   placeholder="Search" aria-label="Search" name="search">
        <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
    </form>

到

<form class="form-inline my-2 my-lg-0" action="{% url 'gallery' %}" method='GET' value='{{ request.GET.q }}'>
   <input class="form-control mr-sm-2" type="text"   placeholder="Search" aria-label="Search" name="q" value='{{ request.GET.q }}'/>
  <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>

像这样改变你的views.py。

@login_required(login_url='login')
def gallery(request):
    search_post = request.GET.get('q')
    if (search_post is not None) and search_post:
        allusername = Photo.objects.filter(Q(reception__icontains=search_post) | Q(partno__icontains=search_post))
        if not allusername:
            allusername = Photo.objects.all().order_by("-Datetime")
    else:
        allusername = Photo.objects.all().order_by("-Datetime")

    context = {'allusername': allusername}

    return render(request, 'photos/gallery.html', context)