问题
I am having some trouble getting the values from a snippet, that I have included into a streamfield using a Snippet Chooser Block.
BioSnippet:
@register_snippet
class BioSnippet(models.Model):
name = models.CharField(max_length=200, null=True)
job_title = models.CharField(max_length=200, null=True, blank=True)
bio = RichTextField(blank=True)
image = models.ForeignKey(
'wagtailimages.Image',
null=True,
blank=True,
on_delete=models.SET_NULL,
related_name='+',
verbose_name='Bio Image'
)
contact_email = models.CharField(max_length=50, null=True, blank=True)
contact_phone = models.CharField(max_length=50, null=True, blank=True)
panels = [
FieldPanel('name'),
FieldPanel('job_title'),
FieldPanel('bio'),
ImageChooserPanel('image'),
FieldPanel('contact_email'),
FieldPanel('contact_phone'),
]
def __str__(self):
return self.name
class Meta:
ordering = ['name',]
Bio Streamfield Definitions:
class BioInline(StructBlock):
bio = SnippetChooserBlock(BioSnippet)
class BioBlock(StructBlock):
overall_title = CharBlock(required=False)
bios = ListBlock(BioInline())
This all works, but when I get to the template, I cannot seem to access the values of the snippet
{% for b in child.value.bios %}
{{ b }}
<hr>
{{ b.name }}
{% endfor %}
the {{ b }} tag outputs:
bio
Sales Team
However {{ b.name }} outputs nothing. Neither does {{ b.values.name }} or any other permutation I can guess at. I suspect the values are just not being pulled down.
回答1:
bios
here is defined as a list of BioInline
values, and so b
in your template would be a BioInline
value - which has a single property, bio
(giving you the actual BioSnippet
object). To get the name, you'd therefore have to use: {{ b.bio.name }}
.
I don't think the BioInline
object is actually gaining you anything though - you could instead define BioBlock
as:
class BioBlock(StructBlock):
overall_title = CharBlock(required=False)
bios = ListBlock(SnippetChooserBlock(BioSnippet))
which would make bios
a list of BioSnippet
s - {{ b.name }}
would then work as expected.
回答2:
Alternatively, you can use self.bios
In blocks.py you have to import the Snippet model (should have this allready):
from thebioapp.models import BioSnippet
And then use this model in the template itself
{% for b in self.bios %}
{{ b }}
<hr>
{{ b.name }}
{% endfor %}
The post is old, but as Wagtail is growing in popularity, I hope this will benefit others!
来源:https://stackoverflow.com/questions/38050609/wagtail-snippetchooserblock-in-streamfield