Django formsコンポーネントの使用教程
8794 ワード
Djangoのformフォームを作成すると、モデルシステムでモデルを作成するのと非常に似ています。モデルでは、フィールドはデータテーブルの一列を表し、フォームのフィールドは＜form＞の一つの＜input＞要素を表しています。
一、formsコンポーネント：
フィールドの検証機能
一例について：登録ユーザ解説。
モデル：models.py
レンダリング方式1
表示
テンプレート
一、formsコンポーネント：
フィールドの検証機能
一例について：登録ユーザ解説。
モデル：models.py
class UserInfo(models.Model):
name=models.CharField(max_length=32)
pwd=models.CharField(max_length=32)
email=models.EmailField()
tel=models.CharField(max_length=32)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="" method="post">
{% csrf_token %}
<div>
<label for="user"> </label>
<p><input type="text" name="name" id="name"></p>
</div>
<div>
<label for="pwd"> </label>
<p><input type="password" name="pwd" id="pwd"></p>
</div>
<div>
<label for="r_pwd"> </label>
<p><input type="password" name="r_pwd" id="r_pwd"></p>
</div>
<div>
<label for="email"> </label>
<p><input type="text" name="email" id="email"></p>
</div>
<input type="submit">
</form>
</body>
</html>
# forms
from django.forms import widgets
wid_01=widgets.TextInput(attrs={"class":"form-control"})
wid_02=widgets.PasswordInput(attrs={"class":"form-control"})
class UserForm(forms.Form):
name=forms.CharField(max_length=32,
widget=wid_01
)
pwd=forms.CharField(max_length=32,widget=wid_02)
r_pwd=forms.CharField(max_length=32,widget=wid_02)
email=forms.EmailField(widget=wid_01)
tel=forms.CharField(max_length=32,widget=wid_01)
def register(request):
if request.method=="POST":
form=UserForm(request.POST)
if form.is_valid():
print(form.cleaned_data) #
else:
print(form.cleaned_data) #
print(form.errors) # ErrorDict : {" ":[" ",]}
print(form.errors.get("name")) # ErrorList [" ",]
return HttpResponse("OK")
form=UserForm()
return render(request,"register.html",locals())レンダリング方式1
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="external nofollow" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
</head>
<body>
<h3> </h3>
<div class="container">
<div class="row">
<div class="col-md-6 col-lg-offset-3">
<form action="" method="post">
{% csrf_token %}
<div>
<label for=""> </label>
{{ form.name }}
</div>
<div>
<label for=""> </label>
{{ form.pwd }}
</div>
<div>
<label for=""> </label>
{{ form.r_pwd }}
</div>
<div>
<label for=""> </label>
{{ form.email }}
</div>
<input type="submit" class="btn btn-default pull-right">
</form>
</div>
</div>
</div>
</body>
</html>
<form action="" method="post">
{% csrf_token %}
{% for field in form %}
<div>
<label for="">{{ field.label }}</label>
{{ field }}
</div>
{% endfor %}
<input type="submit" class="btn btn-default pull-right">
</form>
<form action="" method="post">
{% csrf_token %}
{{ form.as_p }}
<input type="submit" class="btn btn-default pull-right">
</form>表示
def register(request):
if request.method=="POST":
form=UserForm(request.POST)
if form.is_valid():
print(form.cleaned_data) #
else:
print(form.cleaned_data) #
print(form.errors) # ErrorDict : {" ":[" ",]}
print(form.errors.get("name")) # ErrorList [" ",]
return render(request,"register.html",locals())
form=UserForm()
return render(request,"register.html",locals())
<form action="" method="post" novalidate>
{% csrf_token %}
{% for field in form %}
<div>
<label for="">{{ field.label }}</label>
{{ field }} <span class="pull-right" style="color: red">{{ field.errors.0 }}</span>
</div>
{% endfor %}
<input type="submit" class="btn btn-default">
</form>テンプレート
# forms
from django.forms import widgets
wid_01=widgets.TextInput(attrs={"class":"form-control"})
wid_02=widgets.PasswordInput(attrs={"class":"form-control"})
from django.core.exceptions import ValidationError
class UserForm(forms.Form):
name=forms.CharField(max_length=32,
widget=wid_01
)
pwd=forms.CharField(max_length=32,widget=wid_02)
r_pwd=forms.CharField(max_length=32,widget=wid_02)
email=forms.EmailField(widget=wid_01)
tel=forms.CharField(max_length=32,widget=wid_01)
#
def clean_name(self):
val=self.cleaned_data.get("name")
if not val.isdigit():
return val
else:
raise ValidationError(" !")
#
def clean(self):
pwd=self.cleaned_data.get("pwd")
r_pwd=self.cleaned_data.get("r_pwd")
if pwd==r_pwd:
return self.cleaned_data
else:
raise ValidationError(' !')
def register(request):
if request.method=="POST":
form=UserForm(request.POST)
if form.is_valid():
print(form.cleaned_data) #
else:
clean_error=form.errors.get("__all__")
return render(request,"register.html",locals())
form=UserForm()
return render(request,"register.html",locals())
<form action="" method="post" novalidate>
{% csrf_token %}
{% for field in form %}
<div>
<label for="">{{ field.label }}</label>
{{ field }}
<span class="pull-right" style="color: red">
{% if field.label == 'R pwd' %}
<span>{{ clean_error.0 }}</span>
{% endif %}
{{ field.errors.0 }}
</span>
</div>
{% endfor %}
<input type="submit" class="btn btn-default">
</form>