具有多字段過濾的 Django 搜索欄實現

Question

我正在嘗試實現搜索欄的功能。

我的models.py ：

class Question(models.Model):
    questionId = models.IntegerField(primary_key=True)
    groupId = models.IntegerField(default=0)
    questionTitle = models.TextField()
    groupName = models.CharField(max_length=500, null=True, blank=True)
    correctAnsRef = models.ManyToManyField(CorrectAns, related_name="questionReletedResponses")

我的數據庫很大，所以我試圖跳過Question.objects.all()以節省時間。

我的意見views.py ：

def questionList(request)
# Searching Any Value
    if request.method == "POST" and request.POST['searchKey'] != '':
        searchKey = request.POST['searchKey']
        questions = Question.objects.filter(questionId=searchKey)

    return render(request,'diagnosis/questionList.html', {'questions': questions})

這很有效，但它只能按questionId過濾。 我希望有這樣一個搜索欄，它將通過匹配Question模型具有的所有字段（ questionId 、 groupId 、 questionTitle ... 等等）進行過濾。 （注意： request.GET已經用於分頁。）

請建議我該怎么做？

Answer 1

使用Q Objects進行更復雜的查找。

from django.db.models import Q

def questionList(request)
# Searching Any Value
    if request.method == "POST" and request.POST['searchKey'] != '':
        searchKey = request.POST['searchKey']
        try:
            # tries to convert key into int
            searchKey = int(searchKey)

            # returns a Queryset with Question objects where any of the fields match the searchKey
            questions = Question.objects.filter(Q(questionId=searchKey) | Q(groupId=searchKey))
        except:
            # if key is not a number, don't query integer fields
            questions = Question.objects.filter(questionTitle=searchKey)

    return render(request,'diagnosis/questionList.html', {'questions': questions})