Admin view give a Value Error: Cannot assign "'Intelligence'": "CharacterAttributeLink.attribute" must be a "Attribute" instance
Admin view give a Value Error: Cannot assign "'Intelligence'": "CharacterAttributeLink.attribute" must be a "Attribute" instance
我的管理页面目前给我这个：
ValueError at /admin/characters/mage/add/
Cannot assign "'Intelligence'": "CharacterAttributeLink.attribute" must be a "Attribute" instance.
看看我的 models.py:
class Skill(models.Model):
name = models.CharField(max_length=50, choices=SKILL_CHOICES)
class Attribute(models.Model):
name = models.CharField(max_length=50, choices=ATTRIBUTE_CHOICES)
class SkillLink(models.Model):
skill = models.ForeignKey('Skill', choices=SKILL_CHOICES)
class Meta:
abstract = True
class AttributeLink(models.Model):
attribute = models.ForeignKey('Attribute', choices=ATTRIBUTE_CHOICES)
class Meta:
abstract = True
class Spell(models.Model):
name = models.CharField(max_length=50)
vulgar = models.BooleanField(default=False)
# All spells have a primary arcana, and 0-Many secondary arcana.
# Each spell's arcanum have different rating. E.g. Fate 1, Prime 1
#non-optional arcana in addition to the main arcana
# arcana that are not needed to cast the spell
arcana = models.ManyToManyField('Arcana', choices=ARCANUM_CHOICES, through='SpellArcanumLink',
related_name='spell_by_arcanum')
@property
def primary_arcana(self):
return self.arcana.filter(type="primary")
@property
def secondary_arcana(self):
return self.arcana.filter(type="secondary")
@property
def optional_arcana(self):
return self.arcana.filter(type="optional")
# All spells have a 'Attribute+Skill+Primary arcana' pool for casting
skill = models.ManyToManyField('Skill', choices=SKILL_CHOICES, related_name='spell_by_skill',
through='SpellSkillLink')
attribute = models.ManyToManyField('Attribute', choices=ATTRIBUTE_CHOICES,
related_name='spell_by_attribute', through='SpellAttributeLink')
@property
def rote_skill(self):
return self.skill.filter(type="rote") if self.contested else None
@property
def rote_attribute(self):
return self.attribute.filter(type="rote") if self.contested else None
# Mages can own spells
mage = models.ManyToManyField('Mage', related_name='spell_by_mage', through='SpellMageLink')
# Optional contested skill check, e.g. 'Attribute+Skill+Primary arcana vs Attribute+Skill'
contested = models.BooleanField(default=False)
@property
def contested_attribute(self):
return self.attribute.filter(type="contested") if self.contested else None
@property
def contested_skill(self):
return self.skill.filter(type="contested") if self.contested else None
# Optional attribute to subtract from casting dicepool,
# e.g. 'Attribute+Skill+Primary arcana-Resist Attribute'
resisted = models.BooleanField(default=False)
@property
def resisted_attribute(self):
return self.attribute.filter(type="resisted") if self.resisted else None
# Spells come from books
book_ref = GenericRelation('BookReference', null=True, blank=True)
class SpellAttributeLink(SpellLink, AttributeLink):
type = models.CharField(max_length=32,
choices=(('resisted', 'resisted'), ('contested', 'contested'), ('rote', 'rote'))
)
class SpellSkillLink(SpellLink, SkillLink):
type = models.CharField(max_length=32,
choices=(('contested', 'contested'), ('rote', 'rote')), default='Rote'
)
这个应该够了
还有我的admin.py
from django.contrib import admin
from django.contrib.contenttypes import admin as genericAdmin
class ExtraAttributeInline(admin.StackedInline):
model = SpellAttributeLink
extra = 1
can_delete = False
class ExtraSkillInline(admin.StackedInline):
model = SpellSkillLink
extra = 1
can_delete = False
class ExtraSpellArcanaInline(admin.TabularInline):
model = SpellArcanumLink
extra = 1
class SpellInline(admin.TabularInline):
model = Spell.mage.through
class SpellAdmin(admin.ModelAdmin):
inlines = [ExtraAttributeInline, ExtraSkillInline, ExtraSpellArcanaInline, BookReferenceInline]
# Register your models here.
admin.site.register(Mage, MageAdmin)
admin.site.register(Skill)
admin.site.register(Attribute)
admin.site.register(Arcana)
admin.site.register(Spell, SpellAdmin)
我不明白为什么尝试在 CharacterAttributeLink.attribute 上分配智力是个问题。智力有问题
这是我的踪迹：
Environment:
Request Method: POST
Request URL: http://localhost:8000/admin/characters/spell/add/?_to_field=id&_popup=1
Django Version: 1.7.1
Python Version: 3.4.2
Installed Applications:
('autocomplete_light',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'characters')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware')
Traceback:
File "C:\Python34\lib\site-packages\django\core\handlers\base.py" in get_response
111. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Python34\lib\site-packages\django\contrib\admin\options.py" in wrapper
584. return self.admin_site.admin_view(view)(*args, **kwargs)
File "C:\Python34\lib\site-packages\django\utils\decorators.py" in _wrapped_view
105. response = view_func(request, *args, **kwargs)
File "C:\Python34\lib\site-packages\django\views\decorators\cache.py" in _wrapped_view_func
52. response = view_func(request, *args, **kwargs)
File "C:\Python34\lib\site-packages\django\contrib\admin\sites.py" in inner
204. return view(request, *args, **kwargs)
File "C:\Python34\lib\site-packages\django\contrib\admin\options.py" in add_view
1454. return self.changeform_view(request, None, form_url, extra_context)
File "C:\Python34\lib\site-packages\django\utils\decorators.py" in _wrapper
29. return bound_func(*args, **kwargs)
File "C:\Python34\lib\site-packages\django\utils\decorators.py" in _wrapped_view
105. response = view_func(request, *args, **kwargs)
File "C:\Python34\lib\site-packages\django\utils\decorators.py" in bound_func
25. return func.__get__(self, type(self))(*args2, **kwargs2)
File "C:\Python34\lib\site-packages\django\db\transaction.py" in inner
394. return func(*args, **kwargs)
File "C:\Python34\lib\site-packages\django\contrib\admin\options.py" in changeform_view
1404. if all_valid(formsets) and form_validated:
File "C:\Python34\lib\site-packages\django\forms\formsets.py" in all_valid
438. if not formset.is_valid():
File "C:\Python34\lib\site-packages\django\forms\formsets.py" in is_valid
303. self.errors
File "C:\Python34\lib\site-packages\django\forms\formsets.py" in errors
277. self.full_clean()
File "C:\Python34\lib\site-packages\django\forms\formsets.py" in full_clean
326. self._errors.append(form.errors)
File "C:\Python34\lib\site-packages\django\forms\forms.py" in errors
154. self.full_clean()
File "C:\Python34\lib\site-packages\django\forms\forms.py" in full_clean
355. self._post_clean()
File "C:\Python34\lib\site-packages\django\forms\models.py" in _post_clean
408. self.instance = construct_instance(self, self.instance, opts.fields, opts.exclude)
File "C:\Python34\lib\site-packages\django\forms\models.py" in construct_instance
60. f.save_form_data(instance, cleaned_data[f.name])
File "C:\Python34\lib\site-packages\django\db\models\fields\__init__.py" in save_form_data
804. setattr(instance, self.name, data)
File "C:\Python34\lib\site-packages\django\db\models\fields\related.py" in __set__
597. self.field.rel.to._meta.object_name,
Exception Type: ValueError at /admin/characters/spell/add/
Exception Value: Cannot assign "'Intelligence'": "SpellAttributeLink.attribute" must be a "Attribute" instance.
我做错了什么？！
仅将 choices 放在字符字段上：
class Attribute(models.Model):
name = models.CharField(max_length=50, choices=ATTRIBUTE_CHOICES)
告诉 Django 只为您提供从字符串元组中选择众多选项之一的选项。
class AttributeLink(models.Model):
attribute = models.ForeignKey('Attribute', choices=ATTRIBUTE_CHOICES)
告诉 Django 属性对象只能是字符串元组中的众多选择之一。 type(attribute) != type(String)
我的管理页面目前给我这个：
ValueError at /admin/characters/mage/add/
Cannot assign "'Intelligence'": "CharacterAttributeLink.attribute" must be a "Attribute" instance.
看看我的 models.py:
class Skill(models.Model):
name = models.CharField(max_length=50, choices=SKILL_CHOICES)
class Attribute(models.Model):
name = models.CharField(max_length=50, choices=ATTRIBUTE_CHOICES)
class SkillLink(models.Model):
skill = models.ForeignKey('Skill', choices=SKILL_CHOICES)
class Meta:
abstract = True
class AttributeLink(models.Model):
attribute = models.ForeignKey('Attribute', choices=ATTRIBUTE_CHOICES)
class Meta:
abstract = True
class Spell(models.Model):
name = models.CharField(max_length=50)
vulgar = models.BooleanField(default=False)
# All spells have a primary arcana, and 0-Many secondary arcana.
# Each spell's arcanum have different rating. E.g. Fate 1, Prime 1
#non-optional arcana in addition to the main arcana
# arcana that are not needed to cast the spell
arcana = models.ManyToManyField('Arcana', choices=ARCANUM_CHOICES, through='SpellArcanumLink',
related_name='spell_by_arcanum')
@property
def primary_arcana(self):
return self.arcana.filter(type="primary")
@property
def secondary_arcana(self):
return self.arcana.filter(type="secondary")
@property
def optional_arcana(self):
return self.arcana.filter(type="optional")
# All spells have a 'Attribute+Skill+Primary arcana' pool for casting
skill = models.ManyToManyField('Skill', choices=SKILL_CHOICES, related_name='spell_by_skill',
through='SpellSkillLink')
attribute = models.ManyToManyField('Attribute', choices=ATTRIBUTE_CHOICES,
related_name='spell_by_attribute', through='SpellAttributeLink')
@property
def rote_skill(self):
return self.skill.filter(type="rote") if self.contested else None
@property
def rote_attribute(self):
return self.attribute.filter(type="rote") if self.contested else None
# Mages can own spells
mage = models.ManyToManyField('Mage', related_name='spell_by_mage', through='SpellMageLink')
# Optional contested skill check, e.g. 'Attribute+Skill+Primary arcana vs Attribute+Skill'
contested = models.BooleanField(default=False)
@property
def contested_attribute(self):
return self.attribute.filter(type="contested") if self.contested else None
@property
def contested_skill(self):
return self.skill.filter(type="contested") if self.contested else None
# Optional attribute to subtract from casting dicepool,
# e.g. 'Attribute+Skill+Primary arcana-Resist Attribute'
resisted = models.BooleanField(default=False)
@property
def resisted_attribute(self):
return self.attribute.filter(type="resisted") if self.resisted else None
# Spells come from books
book_ref = GenericRelation('BookReference', null=True, blank=True)
class SpellAttributeLink(SpellLink, AttributeLink):
type = models.CharField(max_length=32,
choices=(('resisted', 'resisted'), ('contested', 'contested'), ('rote', 'rote'))
)
class SpellSkillLink(SpellLink, SkillLink):
type = models.CharField(max_length=32,
choices=(('contested', 'contested'), ('rote', 'rote')), default='Rote'
)
这个应该够了
还有我的admin.py
from django.contrib import admin
from django.contrib.contenttypes import admin as genericAdmin
class ExtraAttributeInline(admin.StackedInline):
model = SpellAttributeLink
extra = 1
can_delete = False
class ExtraSkillInline(admin.StackedInline):
model = SpellSkillLink
extra = 1
can_delete = False
class ExtraSpellArcanaInline(admin.TabularInline):
model = SpellArcanumLink
extra = 1
class SpellInline(admin.TabularInline):
model = Spell.mage.through
class SpellAdmin(admin.ModelAdmin):
inlines = [ExtraAttributeInline, ExtraSkillInline, ExtraSpellArcanaInline, BookReferenceInline]
# Register your models here.
admin.site.register(Mage, MageAdmin)
admin.site.register(Skill)
admin.site.register(Attribute)
admin.site.register(Arcana)
admin.site.register(Spell, SpellAdmin)
我不明白为什么尝试在 CharacterAttributeLink.attribute 上分配智力是个问题。智力有问题
这是我的踪迹：
Environment:
Request Method: POST
Request URL: http://localhost:8000/admin/characters/spell/add/?_to_field=id&_popup=1
Django Version: 1.7.1
Python Version: 3.4.2
Installed Applications:
('autocomplete_light',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'characters')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware')
Traceback:
File "C:\Python34\lib\site-packages\django\core\handlers\base.py" in get_response
111. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Python34\lib\site-packages\django\contrib\admin\options.py" in wrapper
584. return self.admin_site.admin_view(view)(*args, **kwargs)
File "C:\Python34\lib\site-packages\django\utils\decorators.py" in _wrapped_view
105. response = view_func(request, *args, **kwargs)
File "C:\Python34\lib\site-packages\django\views\decorators\cache.py" in _wrapped_view_func
52. response = view_func(request, *args, **kwargs)
File "C:\Python34\lib\site-packages\django\contrib\admin\sites.py" in inner
204. return view(request, *args, **kwargs)
File "C:\Python34\lib\site-packages\django\contrib\admin\options.py" in add_view
1454. return self.changeform_view(request, None, form_url, extra_context)
File "C:\Python34\lib\site-packages\django\utils\decorators.py" in _wrapper
29. return bound_func(*args, **kwargs)
File "C:\Python34\lib\site-packages\django\utils\decorators.py" in _wrapped_view
105. response = view_func(request, *args, **kwargs)
File "C:\Python34\lib\site-packages\django\utils\decorators.py" in bound_func
25. return func.__get__(self, type(self))(*args2, **kwargs2)
File "C:\Python34\lib\site-packages\django\db\transaction.py" in inner
394. return func(*args, **kwargs)
File "C:\Python34\lib\site-packages\django\contrib\admin\options.py" in changeform_view
1404. if all_valid(formsets) and form_validated:
File "C:\Python34\lib\site-packages\django\forms\formsets.py" in all_valid
438. if not formset.is_valid():
File "C:\Python34\lib\site-packages\django\forms\formsets.py" in is_valid
303. self.errors
File "C:\Python34\lib\site-packages\django\forms\formsets.py" in errors
277. self.full_clean()
File "C:\Python34\lib\site-packages\django\forms\formsets.py" in full_clean
326. self._errors.append(form.errors)
File "C:\Python34\lib\site-packages\django\forms\forms.py" in errors
154. self.full_clean()
File "C:\Python34\lib\site-packages\django\forms\forms.py" in full_clean
355. self._post_clean()
File "C:\Python34\lib\site-packages\django\forms\models.py" in _post_clean
408. self.instance = construct_instance(self, self.instance, opts.fields, opts.exclude)
File "C:\Python34\lib\site-packages\django\forms\models.py" in construct_instance
60. f.save_form_data(instance, cleaned_data[f.name])
File "C:\Python34\lib\site-packages\django\db\models\fields\__init__.py" in save_form_data
804. setattr(instance, self.name, data)
File "C:\Python34\lib\site-packages\django\db\models\fields\related.py" in __set__
597. self.field.rel.to._meta.object_name,
Exception Type: ValueError at /admin/characters/spell/add/
Exception Value: Cannot assign "'Intelligence'": "SpellAttributeLink.attribute" must be a "Attribute" instance.
我做错了什么？！
仅将 choices 放在字符字段上：
class Attribute(models.Model):
name = models.CharField(max_length=50, choices=ATTRIBUTE_CHOICES)
告诉 Django 只为您提供从字符串元组中选择众多选项之一的选项。
class AttributeLink(models.Model):
attribute = models.ForeignKey('Attribute', choices=ATTRIBUTE_CHOICES)
告诉 Django 属性对象只能是字符串元组中的众多选择之一。 type(attribute) != type(String)