Editing a search view in Django_问答_开发者_运维开发者技术经验分享

开发者 https://www.devze.com 2023-01-21 02:37 出处：网络

Hello I am working in django how to use a search form from Django documents site. Here are some information below.

Hello I am working in django how to use a search form from Django documents site. Here are some information below. Now, is there a way I can produce a part search for title? For example if I wanted to search for a book called "Apress", But instead of typing the whole word I just wrote "ap" to get Apress. Is there a way how to achieve this solution?

    from django.db.models import Q
    from django.shortcuts import render_to_response
    from models import Book

    #views.py
    def search(request):
        query = request.GET.get('q', '')
        if query:
            qset = (
                Q(title__icontains=query) |
                Q(authors__first_name__icontains=query) |
                Q(authors__last_name__icontains=query)
            )
            results = Book.objects.filter(qset).distinct()
        else:
            results = []
        return render_to_response("books/search.html", {
            "results": results,
            "query": query
        })

    #search html

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
    <html lang="en">
    <head>
        <title>Search{% if query %} Results{% endif %}</title>
    </head>
    <body>
      <h1>Search</h1>
      <form action="." method="GET">
        <label for="q">Search: </label>
        <input type="text" name="q" value="{{ query|escape }}">
        <input type="submit" value="Search">
      </form>

      {% if query %}
        <h2>Results for "{{ query|escape }}":</h2>

        {% if results %}
          <ul>
          {% for book in results %}
            <li>{{ book|escape }}</l1>
          {% endfor %}
          </ul>
        {% else %}
          <p>No books found</p>
        {% endif %}
      {% endif %}
    </body>
 开发者_JAVA百科   </html>

If you want to match on the beginning of a field, you can use startswith or istartswith if you want it to be case sensitive. icontains which you are using now will allow matches even within strings, ie. 'arry' will match 'Harry'. While startswith will allow 'Har' to match 'Harry', but not 'ArHarHar'