django - 一种形式的Django多个相同的依赖下拉框
问题描述
我有以下问题；我在 Django 模型表单中有一个依赖下拉菜单。现在我想以相同的形式多次使用它，但如果我加载多个，我无法让它工作，然后我只能输入/使用一个。如果这可行，我有第二个问题我如何在列表/数组中获取不同的值，以便我可以将它们存储在数据库中？最终目标是选择需要多少束，并在此基础上能够输入所需的小时数、离子种类、能量和每束通量。
我的代码如下：
模型.py
from django.db import models
from smart_selects.db_fields import ChainedForeignKey
class IonSpecies(models.Model):
# ionspecie = models.CharField(max_length=10)
Name = models.CharField(max_length=10)
def __str__(self):
# return self.ionspecie
return self.Name
class Energys(models.Model):
Ion_Species = models.ForeignKey(IonSpecies, on_delete=models.CASCADE)
Name = models.CharField(max_length=50)
def __str__(self):
# return self.energy
return self.Name
# Create your models here.
class CreateBeamRequestModel(models.Model):
#status choices
SELECT = 'Select'
REQUEST = 'Request'
TENTATIVE = 'Tentavive'
ACCEPTED = 'Accepted'
CONFIRMED = 'Confirmed'
CANCELLED = 'Cancelled'
COMPLETED = 'Completed'
QUEUED = 'Queued'
STATUS_CHOICES = [
(SELECT, ('Select an option')),
(REQUEST, ('Request')),
(TENTATIVE, ('Tentative')),
(ACCEPTED, ('Accepted')),
(CONFIRMED, ('Confirmed')),
(CANCELLED, ('Cancelled')),
(COMPLETED, ('Completed')),
(QUEUED, ('Queued')),
]
#different beam choices (1 to 4)
DIFBEAMS_CHOICES = [tuple([x,x]) for x in range(1,5)]
#shift choices (1 to 16 is max a week)
SHIFTS_CHOICES = [tuple([x,x]) for x in range(1,17)]
#fields of the model
Project_Code = models.CharField(unique=True, max_length=20, blank = True)
Pac_Rate = models.CharField(max_length=10, blank = True)
Partrec_Contact_Name = models.CharField(max_length=50, blank = True)
Partrec_Contact_Email = models.EmailField(blank = True)
Previous_Experiment = models.CharField(max_length=200, blank = True)
Status = models.CharField(max_length=25, choices=STATUS_CHOICES, default='SELECT')
Project_Title = models.CharField(max_length=100, blank = True)
Spokesperson_Name = models.CharField(max_length=50, blank = True)
Spokesperson_Adress = models.CharField(max_length=50, blank = True)
Spokesperson_Phonenumber = models.CharField(max_length=20, blank = True)
Spokesperson_Email = models.EmailField(blank = True)
Collaborator_Name = models.TextField(blank = True)
Collaborator_Nationality = models.TextField(blank = True)
Collaborator_Home_Institute = models.TextField(blank = True)
Different_Beams = models.IntegerField(choices=DIFBEAMS_CHOICES, default='1')
# Shifts = models.IntegerField(choices=SHIFTS_CHOICES, default='1')
Hours = models.IntegerField(default='1')
Ion_Species = models.ForeignKey(IonSpecies, on_delete=models.CASCADE)
Energy = ChainedForeignKey(Energys, chained_field="Ion_Species", chained_model_field="Ion_Species", show_all=False, auto_choose=True)
Flux = models.CharField(max_length=50, blank = True, null = True)
Start_Date = models.DateTimeField(blank = True, null=True)
End_Date = models.DateTimeField(blank = True, null=True)
Requiered_Equipment = models.TextField(blank = True)
Special_Requirements = models.TextField(blank = True)
Special_Safety_Procedures = models.TextField(blank = True)
Lab_Support_Requirements = models.TextField(blank = True)
Funded = models.TextField(blank = True)
Summary = models.TextField(blank = True)
def __str__(self):
return self.Project_Code
def get_absolute_url(self):
return f"/beamrequest/{self.Project_Code}"
def get_edit_url(self):
return f"{{self.get_absolute_url}}/update/"
def get_delete_url(self):
# return f"/beamrequest/{self.Project_Code}/delete/"
return f"{{self.get_absolute_url}}/delete/"
表格.py
{% extends 'base.html' %}
{% load crispy_forms_tags %}
{% block extrahead %}
{% endblock %}
{% block title %}{{ title }}{% endblock %}
{% block content %}
<form method="post" novalidate>
{% csrf_token %}
<div class="Error_Messages">
{% for error in form.non_field_errors %}
{{ error }}
{% endfor %}
</div>
<br><br>
<b>Internal contact information</b>
<hr class="divider"></hr>
<div class="row">
<div class="col-6">
{{ form.Project_Code|as_crispy_field }}
</div>
<div class="col-6">
{{ form.Partrec_Contact_Name|as_crispy_field }}
</div>
</div>
<div class="row">
<div class="col-6">
{{ form.Pac_Rate|as_crispy_field }}
</div>
<div class="col-6">
{{ form.Partrec_Contact_Email|as_crispy_field }}
</div>
</div>
<div class="row">
<div class="col-6">
{{ form.Previous_Experiment|as_crispy_field }}
</div>
<div class="col-6">
</div>
</div>
<div class="row">
<div class="col-6">
{{ form.Status|as_crispy_field }}
</div>
<div class="col-6">
</div>
</div>
<br><br>
<b>External contact information</b>
<hr class="divider"></hr>
<div class="row justify-content-center">
<div class="col-6">
{{ form.Project_Title|as_crispy_field }}
</div>
</div>
<div class="row">
<div class="col-6">
{{ form.Spokesperson_Name|as_crispy_field }}
</div>
<div class="col-6">
{{ form.Spokesperson_Adress|as_crispy_field }}
</div>
</div>
<div class="row">
<div class="col-6">
{{ form.Spokesperson_Phonenumber|as_crispy_field }}
</div>
<div class="col-6">
{{ form.Spokesperson_Email|as_crispy_field }}
</div>
</div>
<div class="row">
<div class="col-4">
{{ form.Collaborator_Name|as_crispy_field }}
</div>
<div class="col-4">
{{ form.Collaborator_Nationality|as_crispy_field }}
</div>
<div class="col-4">
{{ form.Collaborator_Home_Institute|as_crispy_field }}
</div>
</div>
<br><br>
<b>Beam information</b>
<hr class="divider"></hr>
<div class="row">
<div class="col-6">
{{ form.Start_Date|as_crispy_field }}
</div>
<div class="col-6">
{{ form.End_Date|as_crispy_field }}
</div>
</div>
<div class="justify-content-center">
<div class="col-6">
{{ form.Different_Beams|as_crispy_field }}
</div>
</div>
<div class="row justify-content-center">
<div id="hidden1">
<div class="col-6">
{{ form.Hours|as_crispy_field }}
{{ form.Ion_Species|as_crispy_field }}
{{ form.Energy|as_crispy_field }}
{{ form.Flux|as_crispy_field }}
</div>
</div>
<div id="hidden2">
<div class="col-6">
{{ form.Hours|as_crispy_field }}
{{ form.Ion_Species|as_crispy_field }}
{{ form.Energy|as_crispy_field }}
{{ form.Flux|as_crispy_field }}
</div>
</div>
<div id="hidden3">
<div class="col-6">
{{ form.Hours|as_crispy_field }}
{{ form.Ion_Species|as_crispy_field }}
{{ form.Energy|as_crispy_field }}
{{ form.Flux|as_crispy_field }}
</div>
</div>
<div id="hidden4">
<div class="col-6">
{{ form.Hours|as_crispy_field }}
{{ form.Ion_Species|as_crispy_field }}
{{ form.Energy|as_crispy_field }}
{{ form.Flux|as_crispy_field }}
</div>
</div>
</div>
<div class="row justify-content-center">
{{ form.Requiered_Equipment|as_crispy_field }}
{{ form.Special_Requirements|as_crispy_field }}
{{ form.Special_Safety_Procedures|as_crispy_field }}
{{ form.Lab_Support_Requirements|as_crispy_field }}
{{ form.Funded|as_crispy_field }}
{{ form.Summary|as_crispy_field }}
</div>
<div class="row justify-content-center">
<button type="submit" class="btn btn-success">Save New Request</button>
</div>
</form>
<br>
<script type="text/javascript">
$('#hidden2').css({
'display': 'none'
});
$('#hidden3').css({
'display': 'none'
});
$('#hidden4').css({
'display': 'none'
});
$('#id_Different_Beams').on('change', function() {
if (this.value === '2') {
$('#hidden1').show();
$('#hidden2').show();
$('#hidden3').hide();
$('#hidden4').hide();
}
else if ($(this).val() == '3') {
$('#hidden1').show();
$('#hidden2').show();
$('#hidden3').show();
$('#hidden4').hide();
}
else if ($(this).val() == '4') {
$('#hidden1').show();
$('#hidden2').show();
$('#hidden3').show();
$('#hidden4').show();
}
else {
$('#hidden1').show();
$('#hidden2').hide();
$('#hidden3').hide();
$('#hidden4').hide();
}
});
</script>
{% endblock %}
视图.py
from django.http import Http404, HttpResponse
from django.shortcuts import render, get_object_or_404, redirect
from .models import CreateBeamRequestModel, IonSpecies, Energys
from .forms import CreateBeamRequestForm
# Create your views here.
#home page
def beam_request_home_page(request):
page_title = 'Beam Request'
template_name = 'request/home.html'
context = {"title": page_title}
return render(request, template_name, context)
#@login_required
#Create view
@staff_member_required
def beam_request_create_page(request):
page_title = 'Create new Request'
template_name = 'request/create.html'
form = CreateBeamRequestForm(request.POST or None)
if form.is_valid():
print(form.cleaned_data)
form.save()
form = CreateBeamRequestForm()
context = {"title": page_title, "form": form}
return render(request, template_name, context)
解决方案
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