Django管理员.在更改选择字段上隐藏字段

Question

我有模特:

class CategoryField(models.Model):
    selectfield = models.IntegerField(choices=SELECT_FIELD_CHOICES, default=1)
    verified = models.BooleanField(default=True, verbose_name='Required?')

在管理页面中我有selectField选择:"value1","value2","value3",...当我选择"value2"时,我需要显示verified字段.我该怎么做？

Answer 1

您需要添加一些JavaScript才能显示或隐藏字段.jQuery 1.9.1 已经通过该对象在Django admin中可用django.jQuery.

添加此JavaScript的最简单方法是将Media元类添加到模型表单中,并将表单添加到ModelAdmin:

# forms.py

from django import forms

class CategoryFieldForm(forms.ModelForm):
    . . .

    class Media:
        js = ('category-field-admin.js',)


# admin.py

from django.contrib import admin

from your_app.forms import CategoryFieldForm
from your_app.models import CategoryField


class CategoryFieldAdmin(admin.ModelAdmin):
    form = CategoryFieldForm


admin.site.register(CategoryField, CategoryFieldAdmin)


# category-field-admin.js

// pseudo code - change as needed

(function($) {
    $(function() {
        var selectField = $('#id_selectField'),
            verified = $('#id_verified');

        function toggleVerified(value) {
            value == 'value2' ? verified.show() : verified.hide();
        }

        // show/hide on load based on pervious value of selectField
        toggleVerified(selectField.val());

        // show/hide on change
        selectField.change(function() {
            toggleVerified($(this).val());
        });
    });
})(django.jQuery);