Django UpdateView 和 ChoiceField 问题。姜戈 1.11 python 3.6
Django UpdateView and ChoiceField issue. Django 1.11 python 3.6
我在 Django 中实现 ChoiceField 和 UpdateView 时遇到了一个奇怪的问题。我制作了一个小剪辑来展示我面临的问题。请在启用 subtitles/cc 的情况下观看。它将对我面临的问题有一个想法。 https://youtu.be/M36TnlJvrZs。问题是这样的......
在 CreateView
期间,我将“性别”ChoiceField
设置为“女性”。但在 UpdateView
中,它将“性别” ChoiceField
预填充为 Male.
但是,ListView
将“性别”字段正确呈现为“女性”。
奇怪的是,django 管理面板根本没有显示“性别”字段的任何值。
所有代码如下:
models.py:
from django.db import models
from django.core.urlresolvers import reverse
gender_choices = (('Male', 'Male'), ('Female', 'Female'))
class Birth(models.Model):
full_name = models.CharField(max_length = 100)
gender = models.CharField(max_length=6, choices=gender_choices)
date_of_birth = models.DateField()
place_of_birth = models.CharField(max_length = 50)
mother_name = models.CharField(max_length = 50)
father_name = models.CharField(max_length = 50)
address_at_time_of_birth = models.TextField(max_length = 500)
permanent_address = models.TextField(max_length = 500)
registration_no = models.CharField(max_length = 50)
remarks = models.CharField(max_length = 200)
registration_date = models.DateField()
issue_date = models.DateField()
def get_absolute_url(self):
return reverse('birth:birth_update', kwargs={'pk':self.pk})
#return reverse('birth:birth_home')
def __str__(self):
return self.full_name
forms.py:
from django import forms
from .models import *
class BirthForm(forms.ModelForm):
full_name = forms.CharField()
gender = forms.ChoiceField(choices = gender_choices, widget=forms.Select())
date_of_birth = forms.DateField(widget = forms.DateInput(attrs = {'placeholder':'DD/MM/YYYY'}))
place_of_birth = forms.CharField()
mother_name = forms.CharField()
father_name = forms.CharField()
address_at_time_of_birth = forms.CharField(widget = forms.Textarea())
permanent_address = forms.CharField(widget = forms.Textarea())
registration_no = forms.CharField(required = False)
registration_date = forms.DateField(required = False, widget = forms.DateInput(attrs = {'placeholder':'DD/MM/YYYY'}))
remarks = forms.CharField(required = False)
issue_date = forms.DateField(required = False, widget = forms.DateInput(attrs = {'placeholder':'DD/MM/YYYY'}))
class Meta:
model = Birth
fields = '__all__'
views.py:
from django.views.generic import ListView, CreateView, UpdateView
from .models import *
from .forms import *
from datetime import date
class BirthHome(ListView):
template_name = 'birth/birth_home.html'
model = Birth
context_object_name = 'birth_objects'
paginate_by = 20
def get_queryset(self):
return Birth.objects.all().order_by('-id')
class NewBirth(CreateView):
model = Birth
form_class = BirthForm
#fields = '__all__'
template_name = 'birth/birth_add.html'
def form_valid(self, form):
obj = form.save(commit = False)
if not obj.registration_date:
obj.registration_date = date.today()
if not obj.issue_date:
obj.issue_date = date.today()
if not (date(1900, 1, 1) <= obj.date_of_birth <= date.today()):
form.add_error('date_of_birth', 'Please enter a valid date')
return super(NewBirth, self).form_invalid(form)
obj.full_name = obj.full_name.upper()
obj.gender = obj.gender.upper()
obj.place_of_birth = obj.place_of_birth.upper()
obj.mother_name = obj.mother_name.upper()
obj.father_name = obj.father_name.upper()
obj.address_at_time_of_birth = obj.address_at_time_of_birth.upper()
obj.permanent_address = obj.permanent_address.upper()
if obj.remarks:
obj.remarks = obj.remarks.upper()
self.object = form.save()
return super(NewBirth, self).form_valid(form)
class BirthUpdate(UpdateView):
model = Birth
form_class = BirthForm
template_name = 'birth/birth_update.html'
def form_valid(self, form):
obj = form.save(commit = False)
if not obj.registration_date:
obj.registration_date = date.today()
if not obj.issue_date:
obj.issue_date = date.today()
if not (date(1900, 1, 1) <= obj.date_of_birth <= date.today()):
form.add_error('date_of_birth', 'Please enter a valid date')
return super(BirthUpdate, self).form_invalid(form)
obj.full_name = obj.full_name.upper()
obj.gender = obj.gender.upper()
obj.place_of_birth = obj.place_of_birth.upper()
obj.mother_name = obj.mother_name.upper()
obj.father_name = obj.father_name.upper()
obj.address_at_time_of_birth = obj.address_at_time_of_birth.upper()
obj.permanent_address = obj.permanent_address.upper()
if obj.remarks:
obj.remarks = obj.remarks.upper()
self.object = form.save()
return super(BirthUpdate, self).form_valid(form)
我搜索了很多,也尝试了很多,但都无济于事。严重需要帮助。另外,如果这种方法不正确,正确的工作方法应该是什么?
已解决!
所以经过大量的试验,我意识到了问题所在!!它在 models.py 文件中:
由于我将所有输入都转换为大写,因此 'choices' 元组的值也需要大写。最初 gender_choices 元组是这样读的:
gender_choices = (('Male', 'Male'), ('Female', 'Female'))
而且在我看来,我将性别设为大写,从而导致声明的元组数据和表单数据不匹配。
因此,我将元组更改为:
gender_choices = (('MALE', 'MALE'), ('FEMALE', 'FEMALE'))
工作起来很有魅力!!干杯......并感谢所有的帮助和建议。随时欢迎任何反馈:)
我在 Django 中实现 ChoiceField 和 UpdateView 时遇到了一个奇怪的问题。我制作了一个小剪辑来展示我面临的问题。请在启用 subtitles/cc 的情况下观看。它将对我面临的问题有一个想法。 https://youtu.be/M36TnlJvrZs。问题是这样的......
在 CreateView
期间,我将“性别”ChoiceField
设置为“女性”。但在 UpdateView
中,它将“性别” ChoiceField
预填充为 Male.
但是,ListView
将“性别”字段正确呈现为“女性”。
奇怪的是,django 管理面板根本没有显示“性别”字段的任何值。
所有代码如下:
models.py:
from django.db import models
from django.core.urlresolvers import reverse
gender_choices = (('Male', 'Male'), ('Female', 'Female'))
class Birth(models.Model):
full_name = models.CharField(max_length = 100)
gender = models.CharField(max_length=6, choices=gender_choices)
date_of_birth = models.DateField()
place_of_birth = models.CharField(max_length = 50)
mother_name = models.CharField(max_length = 50)
father_name = models.CharField(max_length = 50)
address_at_time_of_birth = models.TextField(max_length = 500)
permanent_address = models.TextField(max_length = 500)
registration_no = models.CharField(max_length = 50)
remarks = models.CharField(max_length = 200)
registration_date = models.DateField()
issue_date = models.DateField()
def get_absolute_url(self):
return reverse('birth:birth_update', kwargs={'pk':self.pk})
#return reverse('birth:birth_home')
def __str__(self):
return self.full_name
forms.py:
from django import forms
from .models import *
class BirthForm(forms.ModelForm):
full_name = forms.CharField()
gender = forms.ChoiceField(choices = gender_choices, widget=forms.Select())
date_of_birth = forms.DateField(widget = forms.DateInput(attrs = {'placeholder':'DD/MM/YYYY'}))
place_of_birth = forms.CharField()
mother_name = forms.CharField()
father_name = forms.CharField()
address_at_time_of_birth = forms.CharField(widget = forms.Textarea())
permanent_address = forms.CharField(widget = forms.Textarea())
registration_no = forms.CharField(required = False)
registration_date = forms.DateField(required = False, widget = forms.DateInput(attrs = {'placeholder':'DD/MM/YYYY'}))
remarks = forms.CharField(required = False)
issue_date = forms.DateField(required = False, widget = forms.DateInput(attrs = {'placeholder':'DD/MM/YYYY'}))
class Meta:
model = Birth
fields = '__all__'
views.py:
from django.views.generic import ListView, CreateView, UpdateView
from .models import *
from .forms import *
from datetime import date
class BirthHome(ListView):
template_name = 'birth/birth_home.html'
model = Birth
context_object_name = 'birth_objects'
paginate_by = 20
def get_queryset(self):
return Birth.objects.all().order_by('-id')
class NewBirth(CreateView):
model = Birth
form_class = BirthForm
#fields = '__all__'
template_name = 'birth/birth_add.html'
def form_valid(self, form):
obj = form.save(commit = False)
if not obj.registration_date:
obj.registration_date = date.today()
if not obj.issue_date:
obj.issue_date = date.today()
if not (date(1900, 1, 1) <= obj.date_of_birth <= date.today()):
form.add_error('date_of_birth', 'Please enter a valid date')
return super(NewBirth, self).form_invalid(form)
obj.full_name = obj.full_name.upper()
obj.gender = obj.gender.upper()
obj.place_of_birth = obj.place_of_birth.upper()
obj.mother_name = obj.mother_name.upper()
obj.father_name = obj.father_name.upper()
obj.address_at_time_of_birth = obj.address_at_time_of_birth.upper()
obj.permanent_address = obj.permanent_address.upper()
if obj.remarks:
obj.remarks = obj.remarks.upper()
self.object = form.save()
return super(NewBirth, self).form_valid(form)
class BirthUpdate(UpdateView):
model = Birth
form_class = BirthForm
template_name = 'birth/birth_update.html'
def form_valid(self, form):
obj = form.save(commit = False)
if not obj.registration_date:
obj.registration_date = date.today()
if not obj.issue_date:
obj.issue_date = date.today()
if not (date(1900, 1, 1) <= obj.date_of_birth <= date.today()):
form.add_error('date_of_birth', 'Please enter a valid date')
return super(BirthUpdate, self).form_invalid(form)
obj.full_name = obj.full_name.upper()
obj.gender = obj.gender.upper()
obj.place_of_birth = obj.place_of_birth.upper()
obj.mother_name = obj.mother_name.upper()
obj.father_name = obj.father_name.upper()
obj.address_at_time_of_birth = obj.address_at_time_of_birth.upper()
obj.permanent_address = obj.permanent_address.upper()
if obj.remarks:
obj.remarks = obj.remarks.upper()
self.object = form.save()
return super(BirthUpdate, self).form_valid(form)
我搜索了很多,也尝试了很多,但都无济于事。严重需要帮助。另外,如果这种方法不正确,正确的工作方法应该是什么?
已解决!
所以经过大量的试验,我意识到了问题所在!!它在 models.py 文件中:
由于我将所有输入都转换为大写,因此 'choices' 元组的值也需要大写。最初 gender_choices 元组是这样读的:
gender_choices = (('Male', 'Male'), ('Female', 'Female'))
而且在我看来,我将性别设为大写,从而导致声明的元组数据和表单数据不匹配。
因此,我将元组更改为:
gender_choices = (('MALE', 'MALE'), ('FEMALE', 'FEMALE'))
工作起来很有魅力!!干杯......并感谢所有的帮助和建议。随时欢迎任何反馈:)