Django管理员中的通用关系/通用外键 [英] Generic Relations/Generic Foreign Keys in the Django Admin
问题描述
我一直在尝试在Django管理员中显示一个通用外键,但无法使其正常工作。我有一个可以链接到NonSupportedProgram或SupportedProgram类的FullCitation类。所以我用了一个通用的外键。
I've been trying to display a Generic Foreign Key in the Django admin but can't get it working. I have a FullCitation class that can be linked to either a NonSupportedProgram or a SupportedProgram class. So, I have used a generic foreign key.
在管理员中,我希望用户只能从content_type下拉列表中选择NonSupportedProgram或SupportedProgram,然后从object_id字段中,我需要用户以便能够从列出现有NonSuportedProgram或现有支持程序的下拉列表中进行选择,并选择创建新的。这可能吗?我在哪里出错?
In the admin, I want users to only be able to select 'NonSupportedProgram' or 'SupportedProgram' from the content_type dropdown and then, from the object_id field, I need users to be able to select from a dropdown listing the existing NonSuportedPrograms or the existing Supported Programs, with the option of creating a new one. Is this possible? Where am I going wrong?
models.py
models.py
class FullCitation(models.Model)
# the software to which this citation belongs
# either a supported software program or a non-supported software program
limit = models.Q(app_label = 'myprograms', model = 'supportedprogram') | models.Q(app_label = 'myprograms', model = 'nonsupportedprogram')
content_type = models.ForeignKey(ContentType), limit_choices_to = limit, )
object_id = models.PositiveIntegerField()
content_object = generic.GenericForeignKey('content_type', 'object_id')
is_primary = models.BooleanField(help_text="Is this the Primary Citation for the software program?")
class Meta:
unique_together = ('content_type', 'object_id')
app_label = 'myprograms'
reversion.register(FullCitation)
class NonSupportedProgram(models.Model):
title = models.CharField(max_length=256, blank = True)
full_citation = generic.GenericRelation('FullCitation')
class Meta:
app_label = 'myprograms'
reversion.register(NonSBGridProgram)
class SupportedProgram(models.Model):
title = models.CharField(max_length=256, blank = True)
full_citation = generic.GenericRelation('FullCitation')
# and a bunch of other fields.....
admin.py
class FullCitationAdmin(reversion.VersionAdmin):
fieldsets = (
('Which Program', {
'fields': ('content_type', 'object_id', ),
}),
('Citation Information', {
'fields': ('is_primary',),
}),)
# autocomplete_lookup_fields = {
# 'generic': [['content_type', 'object_id']],
# }
# inlines = ['NonSupportedProgramInline', ]
list_display = ('content_object', 'is_primary',)
search_fields = ('content_object__title', )
# list_filter = ('content_object',)
推荐答案
这是一个在Django Admin中呈现GenericForeignKeys的模块:
This is a module that renders GenericForeignKeys in the Django Admin:
https://github.com/lexich/genericrelationview
它不工作与无冲突jQuery设置(如Django CMS中的一样)。
It just doesn't work with a no conflict jQuery setup (like the one from Django CMS).
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