本文介绍了django-autocompletion-light简单的外键完成显示不可编辑的下拉窗口小部件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个国家模型：
class Country（models.Model）：
name = models。 CharField（max_length = 200）
def __str __（self）：
return self.name
UserDetails模型中的外键引用：
class UserDetails（models.Model） ：
...
country = models.ForeignKey（Country，verbose_name ='Country'，null = True，blank = True，default = None）
通过使用django-autocomplete-light，我会点亮，当插入国家时，我有一个文本小部件，完成写第一个字母。 / p>
因此，我准备了：
class CountryAutocomplete（autocomplete.Select2QuerySetView ）
def get_queryset（self）：
qs = Country.objects.all（）
如果self.q：
qs = qs。 filter（name__istartswith = self.q）
返回qs
使用urls.py：
app_name ='shared'
urlpatterns = [
url（
r'^ country-autocomplete / $'，
CountryAutocomplete.as_view（），
name ='country-autocomplete'，
），
]
对于UserDetails表单：
class UserDetailsForm（forms.ModelForm）：
country = forms.ModelChoiceField（
queryset = Country.objects.all（），
widget = autocomplete.ModelSelect2（url ='shared：country-autocomplete'）
）
class Meta：
model = UserDetails
fields = [...，country]
作为一个模板我使用过：
{％load static％}
{％block content％}
< form method =postaction =。>
{％csrf_token％}
{{user_form.as_p}}
{{user_details_form.as_p}}
< input type =submitvalue =Submit/> ;
< / form>
{％endblock％}
{％block footer％}
< script type =text / javascriptsrc ={％static'admin / js / jquery / jquery.js'％}>< / script>
< link rel =stylesheettype =text / csshref ={％static'autocomplete_light / select2.css'％}/>
< script type =text / javascriptsrc ={％static'autocomplete_light / jquery.init.js'％}>< / script>
< script type =text / javascriptsrc ={％static'autocomplete_light / autocomplete.init.js'％}>< / script>
< script type =text / javascriptsrc ={％static'autocomplete_light / select2.js'％}>< / script>
< script type =text / javascriptsrc ={％static'autocomplete_light / vendor / select2 / dist / css / select2.css'％}>< / script>
< script type =text / javascriptsrc ={％static'autocomplete_light / vendor / select2 / dist / js / select2.full.js'％}>< / script>
< script type =text / javascriptsrc ={％static'autocomplete_light / forward.js'％}>< / script>
< script type =text / javascriptsrc ={％static'admin / js / vendor / jquery / jquery.js'％}>< / script>
{{form.media}}
{％endblock％}
已将所有静态文件复制到项目根目录中的static文件夹中，并在站点设置中设置了STATIC_URL ='/ static /'。
在进行get调用时，runserver日志记录会给出静态文件：
[23 / Oct / 2016 17 ：44：59]GET / accounts / register / HTTP / 1.1200 2344
[23 / Oct / 2016 17:44:59]GET /static/admin/js/vendor/jquery/jquery.js HTTP / 1.1304 0
[23 / Oct / 2016 17:44:59]GET /static/autocomplete_light/autocomplete.init.js HTTP / 1.1304 0
[23 / Oct / 2016 17:44:59]GET /static/autocomplete_light/select2.js HTTP / 1.1304 0
[23 / Oct / 2016 17:44:59]GET /static/autocomplete_light/select2.css HTTP / 1.1304 0
[23 / Oct / 2016 17:44:59]GET /static/autocomplete_light/jquery.init.js HTTP / 1.1304 0
[23 / Oct / 2016 17： 44:59]GET /static/autocomplete_light/vendor/select2/dist/css/select2.css HTTP / 1.1304 0
[23 / Oct / 2016 17:44:59]GET / static / autocomplete_light /vendor/select2/dist/js/select2.full.js HTTP / 1.1304 0
[23 / Oct / 2016 17:44:59]GET /static/autocomplete_light/forward.js HTTP / 1.1 304 0
[23 / Oct / 2016 17:44:59]GET / static / admin / js / vendor / j query / jquery.js HTTP / 1.1304 0
当我直接发送到自动完成视图，我得到了一个结果，我期望：
http://127.0.0.1:8000/shared/country-autocomplete/ ？q = u
{pagination：{more：false}，results：[{text：USA，id：3}]}
但是，如果我去注册表单，对于国家/地区字段，我得到这样一个小部件：
这是空的，无法编辑。
如何在打字时使用建议国名的文本小部件？
解决方案
问题是我导入一个css作为一个javascript文件，
更改
< script type =text / javascriptsrc ={ ％static'autocomplete_light / vendor / select2 / dist / css / select2.css'％}>< / script>
to：
code>< link rel =stylesheettype =text / csshref ={％static'autocomplete_light / vendor / select2 / dist / css / select2.css'％}/>
自动填充按照需要工作。
I have a model for countries:
class Country(models.Model):
name = models.CharField(max_length=200)
def __str__(self):
return self.name
That is referred by a foreign key in the UserDetails model:
class UserDetails(models.Model):
...
country = models.ForeignKey(Country,verbose_name='Country',null=True, blank=True, default = None)
By using django-autocomplete-light I would light that when inserting the country I have a text widget that completes while writing the first letters.
Thus, I have prepared:
class CountryAutocomplete(autocomplete.Select2QuerySetView):
def get_queryset(self):
qs = Country.objects.all()
if self.q:
qs = qs.filter(name__istartswith=self.q)
return qs
With urls.py:
app_name='shared'
urlpatterns = [
url(
r'^country-autocomplete/$',
CountryAutocomplete.as_view(),
name='country-autocomplete',
),
]
And for the UserDetails form:
class UserDetailsForm(forms.ModelForm):
country = forms.ModelChoiceField(
queryset=Country.objects.all(),
widget=autocomplete.ModelSelect2(url='shared:country-autocomplete')
)
class Meta:
model = UserDetails
fields = [...,"country"]
As a template I have used:
{% load static %}
{% block content %}
<form method="post" action=".">
{% csrf_token %}
{{ user_form.as_p }}
{{ user_details_form.as_p }}
<input type="submit" value="Submit" />
</form>
{% endblock %}
{% block footer %}
<script type="text/javascript" src="{% static 'admin/js/vendor/jquery/jquery.js' %}"></script>
<link rel="stylesheet" type="text/css" href="{% static 'autocomplete_light/select2.css' %}" />
<script type="text/javascript" src="{% static 'autocomplete_light/jquery.init.js' %}"></script>
<script type="text/javascript" src="{% static 'autocomplete_light/autocomplete.init.js' %}"></script>
<script type="text/javascript" src="{% static 'autocomplete_light/select2.js' %}"></script>
<script type="text/javascript" src="{% static 'autocomplete_light/vendor/select2/dist/css/select2.css' %}"></script>
<script type="text/javascript" src="{% static 'autocomplete_light/vendor/select2/dist/js/select2.full.js' %}"></script>
<script type="text/javascript" src="{% static 'autocomplete_light/forward.js' %}"></script>
<script type="text/javascript" src="{% static 'admin/js/vendor/jquery/jquery.js' %}"></script>
{{ form.media }}
{% endblock %}
I have copied all the static files in a folder called 'static' in the root of the project, and I have set STATIC_URL='/static/' in the site settings.While doing the get call, the runserver logging gives for the static files:
[23/Oct/2016 17:44:59] "GET /accounts/register/ HTTP/1.1" 200 2344
[23/Oct/2016 17:44:59] "GET /static/admin/js/vendor/jquery/jquery.js HTTP/1.1" 304 0
[23/Oct/2016 17:44:59] "GET /static/autocomplete_light/autocomplete.init.js HTTP/1.1" 304 0
[23/Oct/2016 17:44:59] "GET /static/autocomplete_light/select2.js HTTP/1.1" 304 0
[23/Oct/2016 17:44:59] "GET /static/autocomplete_light/select2.css HTTP/1.1" 304 0
[23/Oct/2016 17:44:59] "GET /static/autocomplete_light/jquery.init.js HTTP/1.1" 304 0
[23/Oct/2016 17:44:59] "GET /static/autocomplete_light/vendor/select2/dist/css/select2.css HTTP/1.1" 304 0
[23/Oct/2016 17:44:59] "GET /static/autocomplete_light/vendor/select2/dist/js/select2.full.js HTTP/1.1" 304 0
[23/Oct/2016 17:44:59] "GET /static/autocomplete_light/forward.js HTTP/1.1" 304 0
[23/Oct/2016 17:44:59] "GET /static/admin/js/vendor/jquery/jquery.js HTTP/1.1" 304 0
When I send a get directly to the autocomplete view, I get as a result what I expect:
http://127.0.0.1:8000/shared/country-autocomplete/?q=u
{"pagination": {"more": false}, "results": [{"text": "USA", "id": 3}]}
However, if I go to the registration form, for the country field, I get such a widget:
That is empty and cannot be edited.How can I have a text widget that suggest country names while typing letters?
解决方案
The problem was that I imported a css as a javascript file, changing
<script type="text/javascript" src="{% static 'autocomplete_light/vendor/select2/dist/css/select2.css' %}"></script>
to:
<link rel="stylesheet" type="text/css" href="{% static 'autocomplete_light/vendor/select2/dist/css/select2.css' %}" />
the autocompletion worked as wanted.
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