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我正在尝试制作一个使用 AJAX Select 的搜索表单，这样当我在字段中输入条目时，将有一个下拉列表，其中包含与输入的文本匹配的所有模型对象的属性列表。这里是相关代码：

模型.py

class Student(models.Model):
    student_id = models.CharField(max_length=128, unique=True, null=True, blank=True)
    first_name = models.CharField(max_length=128)
    last_name = models.CharField(max_length=128)
    ssn = USSocialSecurityNumberField(null=False)
    gender = models.CharField(max_length=128, choices=GENDER_CHOICES)
    dob = models.DateField(auto_now=False, auto_now_add=False, db_column="date of birth")
    location = models.CharField(max_length=128, choices=LOCATION_CHOICES, default='south_plainfield')

查找.py

@register('first_name')
class FirstNameLookup(LookupChannel):

    model = Student

    def get_query(self, q, request):
        return self.model.objects.filter(first_name__icontains=q).order_by('first_name')[:50]

    def format_item_display(self, obj):
        return u"<span class='first_name'>%s</span>" % obj.first_name

表格.py

class StudentSearchForm(forms.Form):
    student_id = forms.CharField(max_length=64, required=False, label="Student ID")
    ssn = USSocialSecurityNumberField(widget=forms.TextInput(attrs={'class': 'form-control'}), label="SSN",
                                      help_text="Format: xxx-xx-xxxx", required=False)
    #Pay attention to this
    first_name = AutoCompleteSelectMultipleField('first_name', max_length=128, required=False, label="First Name")
    last_name = forms.CharField(max_length=128, required=False, label="Last Name")
    course = forms.ChoiceField(choices=STUDENT_SEARCH_COURSES, required=False)
    location = forms.ChoiceField(choices=STUDENT_SEARCH_LOCATION_CHOICES, required=False)
    dob = forms.DateField(widget=DateInput(), required=False, label="Date of Birth")
    gender = forms.ChoiceField(choices=STUDENT_SEARCH_GENDER_CHOICES, required=False)

视图.py

def search_student(request):
    form = StudentSearchForm()
    if request.method == 'GET' and request.GET != {}:
        form = StudentSearchForm(request.GET)

        if form.is_valid():
            cleaned_form = form.cleaned_data
            student = Student.objects.none()
            for key in cleaned_form:
                value = cleaned_form[key]
                if value == '' or value == None:
                    continue
                else:
                    if student:
                        student = student.filter(**{key: value})
                    else:
                        student = Student.objects.filter(**{key: value})

            table = StudentTable(student)
            RequestConfig(request, paginate={'per_page': 2}).configure(table)
            return render(request, 'students/search_student.html', {'form': form, 'table': table})
        else:
            print(form.errors)

    return render(request, 'students/search_student.html', {'form': form})

search_student.html

<div class="box-body">
    <form id="student_form" method="get" action="/students/search_student/">
        {% csrf_token %}
        <div class="row">
            {% for field in form %}
                <div class="col-lg-3 col-md-3">
                    <div class="form-group">
                        {{ field.errors }}
                        {{ field.label_tag }}
                        <br>
                        {{ field }}
                    </div>
                </div>
            {% endfor %}
        </div>

        <button type="submit" name="submit" class="btn btn-primary btn-lg btn-block">Search</button>
    </form>
</div>

我现在只做名字字段。出于某种原因，每当我转到搜索学生模板时，我都会收到此错误：

使用参数 '()' 和关键字参数 '{'channel': 'first_name'}' 反转 'ajax_lookup'。尝试了 0 种模式：[]

我不确定我做错了什么，因为我按照 django-ajax-selects 的文档来制作我的代码。有人可以对此有所了解吗？谢谢。

编辑：看来我收到此错误是因为我忘记将 ajax 选择添加到 urls.py 中。但下拉菜单本身并没有出现。

编辑 2：下拉列表现在有效。但是由于某种原因，当我尝试搜索时它没有注册到查询中。

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1 回答 1

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好的，显然我所要做的就是将 AutoCompleteSelectMultipleField 更改为 AutoCompleteField 以获得我想要的。

于 2017-09-07T20:39:38.287 回答