【发布时间】：2020-05-24 11:58:02
【问题描述】：
我正在开发一个 django 应用程序来记录交易。所有交易文件都在一个页面上完成，其中包含一个内联表单集，其中显示了交易的所有进入和退出。在 datetimeinput 字段之前，一切都很好。如果我删除“类型”，表单效果很好，但对用户非常不友好。
'type' 的非工作条目：'datetime-local'
所以我想您可能会说 datetime-local 造成了几个问题，或者可能不是 datetime-local 的责任。我整天都卡在它上面，我真的不确定问题出在哪里：
- Entry.date 值不再填充到字段中
- 在 datetimepicker 中选择新的日期和时间时，它不会保存
- datetime-local 删除秒，我们需要秒
models.py
from django.db.models.functions import datetime
class Entry(models.Model):
ENTRY = 'entry'
EXIT = 'exit'
ENTRY_TYPE_CHOICES = [
(ENTRY, 'Entry'),
(EXIT, 'Exit'),
]
class Meta:
verbose_name = "Entry"
verbose_name_plural = "Entries"
trade = models.ForeignKey(Trade, on_delete=models.CASCADE)
date = models.DateTimeField(null=True, blank=True, default=datetime.datetime.now)
amount = models.FloatField(null=True)
price = models.FloatField(null=True, blank=True)
fee = models.FloatField(null=True, blank=True)
entry_type = models.CharField(max_length=5, choices=ENTRY_TYPE_CHOICES, default=ENTRY)
forms.py
class EntriesForm(ModelForm):
class Meta:
model = Entry
exclude = ()
widgets = {
'date': forms.DateTimeInput(attrs={'type':'datetime-local', 'class':'form-control'}),
}
EntriesFormSet = inlineformset_factory(Trade, Entry, form=EntriesForm, extra=1)
views.py
class TradeUpdateView(UpdateView):
model = Trade
form_class = CreateForm
success_url = reverse_lazy('trade-list')
def get_context_data(self, **kwargs):
data = super(TradeUpdateView, self).get_context_data(**kwargs)
if self.request.POST:
data['entries'] = EntriesFormSet(self.request.POST, instance=self.object)
else:
data['entries'] = EntriesFormSet(instance=self.object)
return data
def form_valid(self, form):
form.instance.user = self.request.user
form.instance.created_by = self.request.user
context = self.get_context_data()
entries = context['entries']
with transaction.atomic():
self.object = form.save()
if entries.is_valid():
entries.instance = self.object
entries.save()
return super(TradeUpdateView, self).form_valid(form)
trade_form.html
{% extends 'dashboard/base.html' %}
{% load static %}
{% block content %}
<script type="text/javascript" src="{% static 'vendor/jquery/jquery.js' %}"></script>
<script type="text/javascript" src="{% static 'admin/js/vendor/jquery/jquery.js' %}"></script>
<!-- Page Heading -->
<div class="d-sm-flex align-items-center justify-content-between mb-3">
<h2>New Trade</h2>
</div>
<div class="row">
<div class="col">
<form action="" method="post">{% csrf_token %}
{{ form.as_p }}
<table class="table">
{{ entries.management_form }}
{% for form in entries.forms %}
{% if forloop.first %}
<thead>
<tr>
{% for field in form.visible_fields %}
<th>{{ field.label|capfirst }}</th>
{% endfor %}
</tr>
</thead>
{% endif %}
<tr class="{% cycle row1 row2 %} formset_row">
{% for field in form.visible_fields %}
<td>
{# Include the hidden fields in the form #}
{% if forloop.first %}
{% for hidden in form.hidden_fields %}
{{ hidden }}
{% endfor %}
{% endif %}
{{ field.errors.as_ul }}
{{ field }}
</td>
{% endfor %}
</tr>
{% endfor %}
</table>
<input type="submit" value="Save"/> <a href="{% url 'trade-list' %}">back to the list</a>
</form>
</div>
</div>
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script src="{% static 'js/formset/jquery.formset.js' %}"></script>
<script type="text/javascript">
$('.formset_row').formset({
addText: 'add entry',
deleteText: 'remove',
prefix: 'entry_set'
});
</script>
{% endblock content %}
【问题讨论】：
标签： python django datetime django-forms datetimepicker