我对不使用Model对象的Forms / Views有一个小问题。我似乎已经按照应有的方式设置了它，但似乎无法弄清楚如何传递数据以初始化编辑表单中的字段。
我要做的是从使用Delphi开发的REST服务器中获取数据。所以这个django东西不会使用普通的django ORM模型东西。目前，我正在使用它，因此我的应用程序显示了使用对服务器的REST调用获得的部门的列表。每个部门都有其ID作为超链接。
我下一步要做的是显示一个表格，用户可以在其中编辑所选部门的某些值。逻辑上，一切似乎都按照应有的方式联系在一起（据我所知）。可悲的是……无论出于何种原因……我似乎都无法将有关单击的ID或什至是列表中选定对象的信息传递给详细视图。
有人可以帮我吗？这是我到目前为止所拥有的：
urls.py：
# DelphiClient/urls.py
from django.conf.urls import patterns
from django.conf.urls import url
from . import views
urlpatterns = patterns("",
url(
regex=r"^Departments$",
view=views.DelphiDepartmentsListView.as_view(),
name="Departments"
),
url(
regex=r'^Department/(?P<pk>\d+)/$',
view=views.DepartmentFormView.as_view(),
name='department_update'
),
)
views.py：
# DelphiClient/views.py
...
from .client import DelphiClient
from .forms import DepartmentForm
class DelphiDepartmentsListView(TemplateView):
template_name = 'DelphiDepartmentList.html'
def get_context_data(self, **kwargs):
client = DelphiClient()
departments = client.get_department()
context = super(DelphiDepartmentsListView, self).get_context_data(**kwargs)
context['departments'] = departments
#client.update_department(1, 'Update From Django')
return context
class DepartmentFormView(FormView):
template_name = 'DepartmentUpdate.html'
form_class = DepartmentForm
success_url = '/DelphiClient/Departments'
def get_initial(self, **kwargs):
"""
Returns the initial data to use for forms on this view.
"""
initial = super(DepartmentFormView, self).get_initial(**kwargs)
# How can I get the ID passed along from the list view
# so I can get the correct object from my REST server and
# pass it along in the Initial ???
return initial
def form_valid(self, form):
# This method is called when valid form data has been POSTed.
# It should return an HttpResponse.
print "form.data {0}".format(form.data)
client = DelphiClient()
client.update_department(form.data["flddepartmentId"],form.data["flddepartmenet"])
return super(DepartmentFormView, self).form_valid(form)
forms.py：
# DelphiClient/forms.py
from django import forms
from .client import DelphiClient
class DepartmentForm(forms.Form):
# How can I fill in the values for these fields using an object passed in
# thhrough Initial or the context?
flddepartmentId = forms.IntegerField(label="Department ID") #, value=1)
flddepartmenet = forms.CharField(label="New Description", max_length=100)
def update_department(self, *args, **kwargs):
#print "update_department"
#print self.data
#print self.data["flddepartmenet"]
client = DelphiClient()
client.update_department(self.data["flddepartmentId"],self.data["flddepartmenet"])
以及表单的模板：
<h1>Update Department</h1>
<p>Update Department? {{ department.flddepartmentid }}</p>
<p>Something : {{ something }}</p>
<form action="" method="post">
{% csrf_token %}
{{ form.as_p }}
<p><label for="id_flddepartmentId">Department ID:</label> <input id="id_flddepartmentId" name="flddepartmentId" type="number" value="1"></p>
<p><label for="id_flddepartmenet">New Description:</label> <input id="id_flddepartmenet" maxlength="100" name="flddepartmenet" type="text"></p>
<input type="submit" value="OK">
</form>
正如您所看到的...我接近了……但是还没有雪茄:-)由于我是Python / Django的新手，并且一直在学习，所以我不知道我做错了什么，或者我应该看的地方。
如果有人能够帮助或指出正确的方向，将不胜感激。
最佳答案
基于位置和基于名称的参数分别存储在self.args和self.kwargs中（基于名称过滤的see the docs）。因此，您可以使用pk访问self.kwargs['pk']。
我不确定您是否应该在表单中包含flddepartmentId作为可编辑字段。这意味着用户可以转到/Department/1/，但是在提交表单时输入flddepartmentId=2。最好从表单中删除该字段，然后在调用update_department时使用URL中的值。
client.update_department(self.kwargs['pk'],self.data["flddepartmenet"])
如果确定要在表单中包含
flddepartmentId，则get_initial方法应如下所示：def get_initial（self，** kwargs）：
“”
返回用于此视图上的表单的初始数据。
“”
初始=超级（DepartmentFormView，self）.get_initial（** kwargs）
initial['flddepartmentId'] = self.kwargs['pk']
return initial