查询django模板中的很多字段 [英] Querying Many to many fields in django template
问题描述
这可能不是相关的,但只是想问一下,如果一个对象从视图传递到模板,在模板中我可以查询很多许多领域
型号代码:
class Info(models.Model )
xls_answer = models.TextField(null = True,blank = True)
类上传(models.Model):
access = models.IntegerField )
info = models.ManyToManyField(Info)
time = models.CharField(max_length = 8,null = True,blank = True)
error_flag = models.IntegerField()
def __unicode __(self):
return self.access
视图: / p>
// obj_Arr包含obj_Arr中objs上传
的所有对象:
logging.debug(objs .access)
logging.debug(objs.time)
返回render_to_response('upload / new_index.html',{'obj_arr':obj_Arr' load_flag':2})
在模板中,可以解码多对多字段,因为我们是传递对象
谢谢..
一般来说,你可以通过django模板系统中的路径跟踪任何属性或方法调用,而不带任何参数。
对于上述视图代码,如
{%for objs in obj_arr%}
{%for objs.answers.all%}
{{answer.someattribute}}
{%endfor%}
{%endfor%}
应该做你所期待的。
(我不太清楚您的代码示例中的具体细节,但希望这将照亮您可以通过模板获得什么)
This may not be relevant but just wanted to ask,
IF an object is passed from views to template and in the template will i be able to query many to many fields
Models code:
class Info(models.Model):
xls_answer = models.TextField(null=True,blank=True)
class Upload(models.Model):
access = models.IntegerField()
info = models.ManyToManyField(Info)
time = models.CharField(max_length=8, null=True,blank=True)
error_flag = models.IntegerField()
def __unicode__(self):
return self.access
Views:
// obj_Arr contains all the objects of upload
for objs in obj_Arr:
logging.debug(objs.access)
logging.debug(objs.time)
return render_to_response('upload/new_index.html', {'obj_arr': obj_Arr , 'load_flag' : 2})
In template is it possible to decode the many to many field since we are passing the object
Thanks..
In general, you can follow anything that's an attribute or a method call with no arguments through pathing in the django template system.
For the view code above, something like
{% for objs in obj_arr %}
{% for answer in objs.answers.all %}
{{ answer.someattribute }}
{% endfor %}
{% endfor %}
should do what you're expecting.
(I couldn't quite make out the specifics from your code sample, but hopefully this will illuminate what you can get into through the templates)
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