如何使用CreateView(基于类的视图)正确实现Django表单集? [英] How do I properly implement Django formsets with a CreateView ( Class Based View )?
问题描述
在此先感谢您的任何建议.几天来，我一直在研究如何使用CreateView正确实现表单集，但我一直处于困境.这是我的代码.
And thanks in advance for any suggestions. I have been playing around with how to properly implement formsets with a CreateView for a couple of days and I'm stuck. Here is my code.
我的模特:
class Team(models.Model):
team_name = models.CharField(max_length=264,null=False,blank=False)
class Player(models.Model):
player_name = models.CharField(max_length=264,null=False,blank=False)
team = models.ForeignKey(Team,null=True,on_delete=models.CASCADE)
我的观点:
class CreateTeamView(LoginRequiredMixin,CreateView):
model = Team
form_class = CreateTeamForm
template_name = 'create_team.html'
def get_context_data(self, **kwargs):
context = super(CreateTeamView, self).get_context_data(**kwargs)
if self.request.POST:
context['new_player'] = NewPlayerFormSet(self.request.POST)
else:
context['nwe_player'] = NewPlayerFormSet()
return context
def get_form_kwargs(self, *args, **kwargs):
kwargs = super(CreateTeamView, self).get_form_kwargs()
kwargs['user'] = self.request.user
return kwargs
def form_valid(self, form):
context = self.get_context_data()
new_player_form = context['new_player']
if new_player_form.is_valid():
self.object = form.save()
new_player_form.instance = self.object
new_player_form.save()
instance = form.save()
else:
return self.render_to_response(self.get_context_data(form=form))
我的表格:
class CreateTeamForm(forms.ModelForm):
class Meta:
model = Team
exclude = []
NewPlayerFormSet = inlineformset_factory(Team, Player, extra=1, fields=['player_name',])
我的HTML:
<div="players>
<div="add_players">
{{ new_player.management_form }}
{% for form in new_player %}
{{ form.id }}
{{ form.player_name }}
</div>
</div>
我的表单正在保存一个玩家，但是当我尝试更新代码以使用初始CreateView保存多个玩家时，它只能识别第一个联系人.我已覆盖BaseInlineFormset进行验证，如下所示.
My form is saving one player, but when I try to update the code to save more than one player with the initial CreateView, it only recognizes the first contact. I have overridden the BaseInlineFormset to do validation as shown below....
class NewPlayerFormSet(NewPlayerFormSet,BaseInlineFormSet):
player_name = forms.CharField(required=True,widget=forms.TextInput)
def add_fields(self, form, index):
super(NewPlayerFormSet,self).add_fields(form,index)
form.fields['player_name'].required = False
def clean(self):
super(NewPlayerFormSet, self).clean()
for form in self.forms:
if form.cleaned_data.get('player_name'):
pass
else:
form.add_error('player_name','Player Name is required.')
pass
我正在尝试获取代码以保存第二个联系人.我已经尝试过各种JQuery尝试....但是不清楚我的问题是JQuery还是mayby我的HTML模板?那就是我被困住的地方.
I'm trying to get the code to save a second contact. I have used tried various JQuery attempts....but am unclear if my problem is with JQuery or mayby my HTML templates? That's where I'm stuck.
我试图做类似...
$(document).ready(function() {
// Watch for the 'add player' click
$('#add_player').click(function(e) {
e.preventDefault();
$('div.add_player:last').clone().each(function(i) {
$(this).find('input,select').each(function(i) {
// Remove any existing values
$(this).val('');
}).appendTo('div#players');
});
});
尽管这可以复制表格，但不会保存1号以外的玩家.不确定我做错了什么.
And while this works to duplicate the form, the players beyond number 1 are not being saved. Not sure what I'm doing incorrectly.
它似乎为此提供了一个JQuery插件，但是出于多种原因，我试图避免使用它.再次感谢您为我指明正确方向的帮助.
It would appear there is a JQuery plugin for this, but I'm trying to avoid using it for a number of reasons. Thanks again for any help to point me in the right direction.
推荐答案
这并不容易.我花了大约一周的时间试图将它们拼凑在一起.这是我最后用来使它工作的所有部分.我最终在解决方案中使用了来自GitHub的jquery.formset.js.希望我能救一个星期.
This was not easy. I spent about a week trying to piece this all together. Here are all of the parts that I used to finally make it work. I ultimately did wind up using jquery.formset.js from GitHub in my solution. Hope I save someone a week.
class Team(models.Model):
team_name = models.CharField(max_length=264,null=False,blank=False)
class Player(models.Model):
player_name = models.CharField(max_length=264,null=False,blank=False)
team = models.ForeignKey(Team,null=True,on_delete=models.CASCADE)
我的Views.py
My Views.py
class CreateTeamView(LoginRequiredMixin,CreateView):
model = Team
form_class = TeamForm
template_name = 'create_team.html'
def get(self, request, *args, **kwargs):
self.object = None
form_class = self.get_form_class()
form = self.get_form(form_class)
player_form = CreatePlayerFormSet()
return self.render_to_response(
self.get_context_data(form=form,
player_form=player_form,
))
def form_valid(self, form, player_form):
self.object = form.save()
player_form.instance = self.object
player_form.save()
instance = form.save()
def form_invalid(self, form, player_form):
return self.render_to_response(
self.get_context_data(form=form,
player_form=player_form,
))
def post(self, request, *args, **kwargs):
self.object = None
form_class = self.get_form_class()
form = self.get_form(form_class)
player_form = CreatePlayerFormSet(self.request.POST)
if (form.is_valid() and player_form.is_valid()):
return self.form_valid(form, player_form)
else:
return self.form_invalid(form, player_form)
我的Forms.py
My Forms.py
class CreateTeamForm(forms.ModelForm):
class Meta:
model = Team
exclude = [ ]
CreatePlayerFormSet = inlineformset_factory(Team, Player, extra=1, fields=(['player_name'])
我的HTML模板:(使用jquery/jquery.formset.js)
My HTML Template: ( Using jquery/jquery.formset.js )
<script src="{% static 'jquery/jquery.formset.js' %}"></script>
<script type="text/javascript">
$(function() {
$(".inline.{{ player_form.prefix }}").formset({
prefix: "{{ player_form.prefix }}",
})
})
</script>
<form method="POST" enctype="multipart/form-data" id="forms">
{% csrf_token %}
{{ player_form.management_form }}
{{ player_form.non_form_errors }}
{% for form in player_form %}
{{ form.id }}
<div class="inline {{ player_form.prefix }}">
<div class="leftwidth22">
<div class="width52">
<h2 class="floatright23">Player Name - </h2>
</div>
</div>
<div class="rightwidth53">
<h2 class="width70">
{{ form.player_name }}
</h2>
</div>
{% endfor %}
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