无法以 Django 形式获取初始值作为 modelchoicefield
Can't get initial value as modelchoicefield in django form
我有一个列列表。我正在尝试更新该列表中的一行。在我 select 一行之后，我正在尝试更新它。在我 select 一行之后，我得到其中一个参数 table_id。 table_id 在 model.py 和 forms.py 中定义。我在 djangoproject 中将 table_id 显示为 modelchoicefield，但我无法将我的实例值启动为 modelchoicefield。
updateView.py
from django.shortcuts import render,redirect,get_object_or_404
from django.urls import reverse
from django.contrib import messages
from Columns_definition.forms import ColumnsDefinitionsForms
from Columns_definition.models import sysColumns
def update_table(request,id):
column_data = get_object_or_404(sysColumns, id = id)
columns_form = ColumnsDefinitionsForms(request.POST or None, request.FILES or None, instance = column_data)
if columns_form.is_valid():
aciklama = request.POST.get('tabloid')
columns_form.save()
messages.info(request, "\'" + column_data.name + "\'" + "{}".format((": is updated")))
return redirect("Columns_definition:columns_def")
context = {
"columns_form":columns_form,
"id":id,
}
return render(request, 'columnsCreate.html', context)
forms.py
from django import forms
from Columns_definition.models import sysColumns
from Utilities.custom_enum import DataTypes
from Table_definition.models import sysTables
class ColumnsDefinitionsForms(forms.ModelForm):
datatype = forms.ChoiceField(choices=DataTypes, required=False, label='Alan Veri Tipi' , widget=forms.Select(attrs={
'placeholder': '','class':'form-control select-access-open select2-hidden-accessible popUp'
}))
def __init__(self, *args, **kwargs):
super(ColumnsDefinitionsForms, self).__init__(*args, **kwargs)
self.fields['datatype'].choices.insert(0, ('','---------' ) )
tabloid = forms.ModelChoiceField(queryset=sysTables.objects.all(),
empty_label=None,
widget=forms.Select(attrs={
'class': 'form-control select-access-open select2-hidden-accessible'
}))
class Meta:
model = sysColumns
fields = [ 'tabloid',
'name',
'alias' ,
'aliasLng1' ,
'aliasLng2' ,
'visible',
'datatype',
'datalength',
'comboid' ,
'reftype'
]
widgets = {
'name':forms.TextInput(attrs={'placeholder': '','class':'rc-form-control-input form-control-user'}),
'alias': forms.TextInput(attrs={'placeholder': '','class':'rc-form-control-input form-control-user'}),
'aliasLng1': forms.TextInput(attrs={'placeholder': '','class':'rc-form-control-input form-control-user'}),
'aliasLng2': forms.TextInput(attrs={'placeholder': '','class':'rc-form-control-input form-control-user'}),
'visible': forms.CheckboxInput(attrs={'placeholder': '','class':'form-check-input','id':'visible'}),
'datalength':forms.NumberInput(attrs={'placeholder': '','id':'datalength','class':'form-control rc-form-control-input form-control-user'}),
'comboid': forms.NumberInput(attrs={'placeholder': '','id':'comboid','class':'form-control rc-form-control-input form-control-user'}),
'reftype': forms.NumberInput(attrs={'placeholder': '','id':'reftype','class':'form-control rc-form-control-input form-control-user'}),
}
models.py
系统列
from django.db import models
import uuid
from django.utils.translation import ugettext_lazy as _
from Table_definition.models import sysTables
from model_utils import Choices
DataTypes=(
(0 , 'String'),
(1 , 'Numeric'),
(2 ,'Currency' ),
(3 ,'DateTime' ),
(4 ,'Yes/No' ),
(5 ,'UUID' ),
(6 ,'Combo' ),
(7 ,'Image / Binary' ),
)
class sysColumns(models.Model):
class Meta:
db_table = 'sysColumns'
id = models.UUIDField(primary_key=True,default=uuid.uuid4, editable=False)
tableid=models.ForeignKey(sysTables, on_delete=models.CASCADE)
name = models.CharField(_('Alan Adı'),max_length=64,null=False, blank=False)
alias = models.CharField(_('Alan Açıklaması (Yerel Dil)'),max_length=100,null=False, blank=False)
aliasLng1 = models.CharField(_('Alan Açıklaması (Dil-1)'),max_length=100,null=False, blank=False)
aliasLng2 = models.CharField(_('Alan Açıklaması (Dil-2)'),max_length=100,null=True,blank=True)
visible = models.BooleanField(_('Görünüm'),null=True,blank=True)
datatype = models.IntegerField(_('Alanın Veri Tipi'),null=True,blank=True,choices=DataTypes)
datalength = models.IntegerField(_('Alanın Uzunluğu'),null=True,blank=True)
comboid = models.IntegerField(_('Kombo Değeri'),null=True,blank=True)
reftype =models.IntegerField(_('Referans Tipi'),null=True,blank=True)
def __str__(self):
return self.name
系统表 - Models.py
from django.db import models
import uuid
from django.utils.translation import ugettext_lazy as _
class sysTables(models.Model):
class Meta:
db_table = 'sysTables'
id = models.UUIDField(primary_key=True,default=uuid.uuid4, editable=False)
name = models.CharField(_('Tablo Adı'),max_length=64,null=False, blank=False)
alias = models.CharField(_('Tablo Açıklaması (Yerel Dil)'),max_length=100,null=False, blank=False)
aliasLng1 = models.CharField(_('Tablo Açıklaması (Dil-1)'),max_length=100,null=False, blank=False)
aliasLng2 = models.CharField(_('Tablo Açıklaması (Dil-2)'),max_length=100,null=True,blank=True)
chistory = models.BooleanField(_('Yeni Kayıt Tarihçesi '),null=True,blank=True)
rhistory = models.BooleanField(_('Kayıt Okuma Tarihçesi'),null=True,blank=True)
uhistory = models.BooleanField(_('Kayıt Güncelleme Tarihçesi'),null=True,blank=True)
dhistory = models.BooleanField(_('Kayıt Silme Tarihçesi '),null=True,blank=True)
log = models.BooleanField(_('Kayıt Logu'),null=True,blank=True)
def __str__(self):
return self.alias
columnsCreate.html
<div class="row">
<div class="col-md-12">
<div class="card">
<div class="card-header">
<div class="row">
<div class="col-md-10 offset-md-1">
<div class="header-elements-inline">
{% if islem_turu == "detay" %}
<legend class="text-uppercase font-size-sm font-weight-bold">{% trans " Kolon Detay Kartı " %}</legend>
{% elif islem_turu == "guncelle"%}
<legend class="text-uppercase font-size-sm font-weight-bold">{% trans " Kolon Güncelle Kartı " %}</legend>
{% else %}
<legend class="text-uppercase font-size-sm font-weight-bold">{% trans " Kolon Oluşturma Kartı " %}</legend>
{% endif %}
</div>
</div>
</div>
</div>
<div class="card-body">
<div class="row">
<div class="col-md-10 offset-md-1">
<form method="post">
{% csrf_token %}
{% for field in columns_form %}
<div class="form-group row">
<label class="col-lg-3 col-form-label"> {{field.label}}
</label>
<div class="col-lg-9">
{{ field }}
</div>
</div>
{% endfor %}
{% if islem_turu == "detay" %}
{% elif islem_turu == "guncelle" %}
<button class="btn btn-info btn-md" style="margin:.5em; width:8em; float:right; color: #333;background: #41bd1e;" type="submit">
<i class="icon-floppy-disk " style="color: #333; background:#41bd1e;"></i> {% trans "Kaydet" %}
</button>
{% else %}
<button class="btn btn-info btn-md" style="margin:.5em; width:8em; float:right; color: #333;background: #41bd1e;" type="submit">
<i class="icon-floppy-disk " style="color: #333; background:#41bd1e;"></i> {% trans "Kaydet" %}
</button>
<a href="{% url 'Columns_definition:columns_def' %}" class="btn btn-danger btn-md"
style="margin:.5em; width:8em; float:right;">
<i class="fas fa-close"></i> {% trans "İptal" %}
</a>
{% endif %}
</div>
</form>
</div>
</div>
</div>
combo selection list (1)
combo selection update (2)
columns list (3)
columns update (4)
编辑：当您检查 (1) 并按下更新按钮后，然后在图片 (2) 中，您可以看到我从 (1) 中的 (2) 中获得组合作为我的 selected modelchoicefield。但是在 (3) 中，我的 tableid 与 (4) 中的 tableid 不匹配。我无法进入 (4) 之前在 (3) 上 selected 的内容。相反，我从 modelchoicefield 中的数据库中获取了 tableid 值的第一个元素。
我希望 select column_data 中 table_id 的字段并将其发送到初始值并希望 select 它作为默认的 modelchoicefield。我在我的其他项目中做了很多例子，但不能在这个项目上解决。提前感谢您的帮助。
我想，问题的原因是 forms.py 中的变量名。在 Forms.py 中，tabloid 应定义为 tableid。由于您的项目使用 forms.py 中的模型库。表单和模型中的对象必须在 Django 项目中匹配。
此致，
我有一个列列表。我正在尝试更新该列表中的一行。在我 select 一行之后，我正在尝试更新它。在我 select 一行之后，我得到其中一个参数 table_id。 table_id 在 model.py 和 forms.py 中定义。我在 djangoproject 中将 table_id 显示为 modelchoicefield，但我无法将我的实例值启动为 modelchoicefield。
updateView.py
from django.shortcuts import render,redirect,get_object_or_404
from django.urls import reverse
from django.contrib import messages
from Columns_definition.forms import ColumnsDefinitionsForms
from Columns_definition.models import sysColumns
def update_table(request,id):
column_data = get_object_or_404(sysColumns, id = id)
columns_form = ColumnsDefinitionsForms(request.POST or None, request.FILES or None, instance = column_data)
if columns_form.is_valid():
aciklama = request.POST.get('tabloid')
columns_form.save()
messages.info(request, "\'" + column_data.name + "\'" + "{}".format((": is updated")))
return redirect("Columns_definition:columns_def")
context = {
"columns_form":columns_form,
"id":id,
}
return render(request, 'columnsCreate.html', context)
forms.py
from django import forms
from Columns_definition.models import sysColumns
from Utilities.custom_enum import DataTypes
from Table_definition.models import sysTables
class ColumnsDefinitionsForms(forms.ModelForm):
datatype = forms.ChoiceField(choices=DataTypes, required=False, label='Alan Veri Tipi' , widget=forms.Select(attrs={
'placeholder': '','class':'form-control select-access-open select2-hidden-accessible popUp'
}))
def __init__(self, *args, **kwargs):
super(ColumnsDefinitionsForms, self).__init__(*args, **kwargs)
self.fields['datatype'].choices.insert(0, ('','---------' ) )
tabloid = forms.ModelChoiceField(queryset=sysTables.objects.all(),
empty_label=None,
widget=forms.Select(attrs={
'class': 'form-control select-access-open select2-hidden-accessible'
}))
class Meta:
model = sysColumns
fields = [ 'tabloid',
'name',
'alias' ,
'aliasLng1' ,
'aliasLng2' ,
'visible',
'datatype',
'datalength',
'comboid' ,
'reftype'
]
widgets = {
'name':forms.TextInput(attrs={'placeholder': '','class':'rc-form-control-input form-control-user'}),
'alias': forms.TextInput(attrs={'placeholder': '','class':'rc-form-control-input form-control-user'}),
'aliasLng1': forms.TextInput(attrs={'placeholder': '','class':'rc-form-control-input form-control-user'}),
'aliasLng2': forms.TextInput(attrs={'placeholder': '','class':'rc-form-control-input form-control-user'}),
'visible': forms.CheckboxInput(attrs={'placeholder': '','class':'form-check-input','id':'visible'}),
'datalength':forms.NumberInput(attrs={'placeholder': '','id':'datalength','class':'form-control rc-form-control-input form-control-user'}),
'comboid': forms.NumberInput(attrs={'placeholder': '','id':'comboid','class':'form-control rc-form-control-input form-control-user'}),
'reftype': forms.NumberInput(attrs={'placeholder': '','id':'reftype','class':'form-control rc-form-control-input form-control-user'}),
}
models.py
系统列
from django.db import models
import uuid
from django.utils.translation import ugettext_lazy as _
from Table_definition.models import sysTables
from model_utils import Choices
DataTypes=(
(0 , 'String'),
(1 , 'Numeric'),
(2 ,'Currency' ),
(3 ,'DateTime' ),
(4 ,'Yes/No' ),
(5 ,'UUID' ),
(6 ,'Combo' ),
(7 ,'Image / Binary' ),
)
class sysColumns(models.Model):
class Meta:
db_table = 'sysColumns'
id = models.UUIDField(primary_key=True,default=uuid.uuid4, editable=False)
tableid=models.ForeignKey(sysTables, on_delete=models.CASCADE)
name = models.CharField(_('Alan Adı'),max_length=64,null=False, blank=False)
alias = models.CharField(_('Alan Açıklaması (Yerel Dil)'),max_length=100,null=False, blank=False)
aliasLng1 = models.CharField(_('Alan Açıklaması (Dil-1)'),max_length=100,null=False, blank=False)
aliasLng2 = models.CharField(_('Alan Açıklaması (Dil-2)'),max_length=100,null=True,blank=True)
visible = models.BooleanField(_('Görünüm'),null=True,blank=True)
datatype = models.IntegerField(_('Alanın Veri Tipi'),null=True,blank=True,choices=DataTypes)
datalength = models.IntegerField(_('Alanın Uzunluğu'),null=True,blank=True)
comboid = models.IntegerField(_('Kombo Değeri'),null=True,blank=True)
reftype =models.IntegerField(_('Referans Tipi'),null=True,blank=True)
def __str__(self):
return self.name
系统表 - Models.py
from django.db import models
import uuid
from django.utils.translation import ugettext_lazy as _
class sysTables(models.Model):
class Meta:
db_table = 'sysTables'
id = models.UUIDField(primary_key=True,default=uuid.uuid4, editable=False)
name = models.CharField(_('Tablo Adı'),max_length=64,null=False, blank=False)
alias = models.CharField(_('Tablo Açıklaması (Yerel Dil)'),max_length=100,null=False, blank=False)
aliasLng1 = models.CharField(_('Tablo Açıklaması (Dil-1)'),max_length=100,null=False, blank=False)
aliasLng2 = models.CharField(_('Tablo Açıklaması (Dil-2)'),max_length=100,null=True,blank=True)
chistory = models.BooleanField(_('Yeni Kayıt Tarihçesi '),null=True,blank=True)
rhistory = models.BooleanField(_('Kayıt Okuma Tarihçesi'),null=True,blank=True)
uhistory = models.BooleanField(_('Kayıt Güncelleme Tarihçesi'),null=True,blank=True)
dhistory = models.BooleanField(_('Kayıt Silme Tarihçesi '),null=True,blank=True)
log = models.BooleanField(_('Kayıt Logu'),null=True,blank=True)
def __str__(self):
return self.alias
columnsCreate.html
<div class="row">
<div class="col-md-12">
<div class="card">
<div class="card-header">
<div class="row">
<div class="col-md-10 offset-md-1">
<div class="header-elements-inline">
{% if islem_turu == "detay" %}
<legend class="text-uppercase font-size-sm font-weight-bold">{% trans " Kolon Detay Kartı " %}</legend>
{% elif islem_turu == "guncelle"%}
<legend class="text-uppercase font-size-sm font-weight-bold">{% trans " Kolon Güncelle Kartı " %}</legend>
{% else %}
<legend class="text-uppercase font-size-sm font-weight-bold">{% trans " Kolon Oluşturma Kartı " %}</legend>
{% endif %}
</div>
</div>
</div>
</div>
<div class="card-body">
<div class="row">
<div class="col-md-10 offset-md-1">
<form method="post">
{% csrf_token %}
{% for field in columns_form %}
<div class="form-group row">
<label class="col-lg-3 col-form-label"> {{field.label}}
</label>
<div class="col-lg-9">
{{ field }}
</div>
</div>
{% endfor %}
{% if islem_turu == "detay" %}
{% elif islem_turu == "guncelle" %}
<button class="btn btn-info btn-md" style="margin:.5em; width:8em; float:right; color: #333;background: #41bd1e;" type="submit">
<i class="icon-floppy-disk " style="color: #333; background:#41bd1e;"></i> {% trans "Kaydet" %}
</button>
{% else %}
<button class="btn btn-info btn-md" style="margin:.5em; width:8em; float:right; color: #333;background: #41bd1e;" type="submit">
<i class="icon-floppy-disk " style="color: #333; background:#41bd1e;"></i> {% trans "Kaydet" %}
</button>
<a href="{% url 'Columns_definition:columns_def' %}" class="btn btn-danger btn-md"
style="margin:.5em; width:8em; float:right;">
<i class="fas fa-close"></i> {% trans "İptal" %}
</a>
{% endif %}
</div>
</form>
</div>
</div>
</div>
combo selection list (1)
combo selection update (2)
columns list (3)
columns update (4)
编辑：当您检查 (1) 并按下更新按钮后，然后在图片 (2) 中，您可以看到我从 (1) 中的 (2) 中获得组合作为我的 selected modelchoicefield。但是在 (3) 中，我的 tableid 与 (4) 中的 tableid 不匹配。我无法进入 (4) 之前在 (3) 上 selected 的内容。相反，我从 modelchoicefield 中的数据库中获取了 tableid 值的第一个元素。
我希望 select column_data 中 table_id 的字段并将其发送到初始值并希望 select 它作为默认的 modelchoicefield。我在我的其他项目中做了很多例子，但不能在这个项目上解决。提前感谢您的帮助。
我想，问题的原因是 forms.py 中的变量名。在 Forms.py 中，tabloid 应定义为 tableid。由于您的项目使用 forms.py 中的模型库。表单和模型中的对象必须在 Django 项目中匹配。
此致，