Django入門チュートリアルノート(三)
3045 ワード
共通テンプレートラベル
# if, ifequal, ifnotequal, for(forloop),
# cycle
{% for o in some_list %}
...
{% endfor %}
# {# #} comment, csrf_token, debug, filter, autoescape, firstof, load
# now, lorem, spaceless, url, verbatim, with ...
#
{{ value | lower }}
# upper, add, cut, date, default, default_if_none, escape, dictsort
# join, length, safe, slice, title, urlencode, truncatechars, striptags
テンプレートの内容と継承
{% include 'sub.html' with val='val' %}
{% extends 'base.html' %}
{% block name %} ... {% endblock %}
{{ block.super }}
admin構成
#
admin.site.register()
# :
@admin.register(Publisher)
class PublisherAdmin(admin.ModelAdmin):
list_display = ('name','city')
search_fields
list_filter
list_editable
ordering
fields/exclude
fieldsets
Form使用
# forms.py
from django import forms
class PublisherForm(forms.ModelForm):
class Meta:
model = Publisher
fields = '__all__'
#
publisher_form = PublisherForm()
{% publisher_form.as_p %}
publisher_form = PublisherForm(request.POST)
#
publisher_form.is_valid()
publisher_form.save()
from django import forms
class PublisherForm(forms.Form):
name = forms.CharField(label, error_messages={'required':' '})
...
#
publisher_form = PublisherForm()
{% publisher_form.as_p %}
publisher_form = PublisherForm(request.POST)
#
publisher_form.is_valid()
name = publisher_form.cleaned_data['name']
...
Formカスタム検証
# forms.py
#
from django.core.exceptions import ValidationError
from django.utils.translation import ugettext_lazy as _
#
def validate_even(value):
if value % 2 != 0:
raise ValidationError(
_('%(value)s is not an even number'),
params={'value': value},
)
# raise ValidationError('message')
# except Publisher.DoesNotExist
#
# models.py
#
from django.db import models
#
class MyForm(forms.ModelForm):
even_field = forms.IntegerField(validators=[validate_even])
# forms.py ModelForm
class PublisherForm(forms.ModelForm):
def clean_name(self):
value = self.cleaned_data.get('name')
... //
return value
# forms.py ModelForm
class PublisherForm(forms.ModelForm):
def clean(self):
cleaned_data = super(PublisherForm, self).clean()
value = cleanen_data.get('name')
# raise ValidationError
sefl._errors['name'] = self.error_class(['message'])
...
return cleaned_data //