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exception - 故障排除 "Related Field has invalid lookup: icontains"

转载 作者:行者123 更新时间:2023-12-02 18:56:19 24 4
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我在 models.py 中有以下模型:

class ListinoTraduttore(models.Model):
traduttore = models.ForeignKey('Traduttore', related_name='Traduttore')
linguaDa = models.ForeignKey(Lingua, related_name = "linguaDa")
linguaA = models.ForeignKey(Lingua, related_name = "linguaA")
prezzoParola = models.CharField(max_length=50, blank=True)
prezzoRiga = models.CharField(max_length=50, blank=True)
scontoCat = models.CharField(max_length=50, blank=True)
scontoFuzzy = models.CharField(max_length=50, blank=True)
scontoRipetizioni = models.CharField(max_length=50, blank=True)
class Meta:
verbose_name_plural = "Listini Traduttori"
def __unicode__(self):
return u"%s Da %s A %s Parola=%s Riga=%s ScontoCAT=%s ScontoFuzzy=%s ScontoRipetizioni=%s" % (self.traduttore, self.linguaDa, self.linguaA, self.prezzoParola, self.prezzoRiga, self.scontoCat, self.scontoFuzzy, self.scontoRipetizioni)


class Traduttore(models.Model):
nome = models.CharField(nomeString, max_length=50)
cognome = models.CharField(cognomeString, max_length=50)
nomeAzienda = models.CharField(nomeAziendaString, max_length=50, blank=True)
codiceFiscale = models.CharField(codiceFiscaleString, max_length=50, blank=True)
partitaIva = models.CharField(partitaIvaString, max_length=50, blank=True)
indirizzo = models.CharField(indirizzoString, max_length=50, blank=True)
telefono = models.CharField(telefonoString, max_length=50, blank=True)
fax = models.CharField(faxString, max_length=50, blank=True)
email = models.EmailField(max_length=50, blank=True)
referente = models.CharField(referenteString, max_length=50, blank=True)
valuta = models.ForeignKey(Valuta)
metodoPagamento = models.ForeignKey(MetodoPagamento)
datiBancari = models.CharField(datiBancariString, max_length=50, blank=True)
programmiUtilizzati = models.ManyToManyField(Programma, blank=True)
note = models.CharField(max_length=200, blank=True)
listino = models.ManyToManyField(ListinoTraduttore, related_name='listino', blank=True)
def __unicode__(self):
return u"%s %s %s" % (self.nome, self.cognome, self.nomeAzienda)
class Meta:
verbose_name_plural = "Traduttori"

admin.py 中,我有以下内容:

class TraduttoreAdmin(admin.ModelAdmin):
list_display = ("nome", "cognome", "nomeAzienda")
search_fields = ["nome", "cognome", "nomeAzienda"]

class ListinoTraduttoreAdmin(admin.ModelAdmin):
list_display = ("traduttore", "linguaDa", "linguaA", "prezzoParola", "prezzoRiga", "scontoCat", "scontoFuzzy", "scontoRipetizioni")
search_fields = ['traduttore__nome", "linguaDa", "linguaA"]

但是当我尝试在 ListinoTraduttore 表的管理页面中进行搜索时,出现以下错误:

TypeError at /admin/itrad/listinotraduttore/
Related Field has invalid lookup: icontains
Request Method: GET
Request URL: http://127.0.0.1:8000/admin/itrad/listinotraduttore/?q=Fenicio
Django Version: 1.4.1
Exception Type: TypeError
Exception Value:
Related Field has invalid lookup: icontains
Exception Location: /Library/Python/2.7/site-packages/django/db/models/fields/related.py in get_prep_lookup, line 142
Python Executable: /usr/bin/python
Python Version: 2.7.2
Python Path:
['/Users/nicolac/Documents/DjangoProjects/mysite',
'/Library/Python/2.7/site-packages/pip-1.1-py2.7.egg',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages',
'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old',
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload',
'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC',
'/Library/Python/2.7/site-packages']

最佳答案

这是为了(希望)简化答案。

不要过滤外键字段本身!

<小时/>

改变这个

search_fields = ['foreignkeyfield']

对此(注意两个下划线)

search_fields = ['foreignkeyfield__name']

name 表示与我们有外键关系的表中的字段名称。

关于exception - 故障排除 "Related Field has invalid lookup: icontains",我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11754877/

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