By default, Satchmo just stores a huge list of photos for a given
product. Aside from sort order, there is no way to distinguish one
photo from another.
That blows.
Here's what I did instead:
On my custom product module, I have a few models:
-----------------------------------------------------------------------------
class HSSProductPhotoType(models.Model):
name = models.CharField(blank=False, max_length=75)
def _get_subtype(self):
return "HSS Product Photo Type"
def __unicode__(self):
return u"%s" % self.name
class Meta:
verbose_name = _('Photo Type')
verbose_name_plural = _('Photo Types')
-----------------------------------------------------------------------------
class HSSProductPhoto(models.Model):
product = models.ForeignKey(HSSProduct, blank=False)
phototype = models.ForeignKey(HSSProductPhotoType, blank=False,
verbose_name=_('Type'))
picture = ImageWithThumbnailField(verbose_name='Picture',
upload_to="assets/products/pictures/", name_field="_filename",
blank=True, null=True)
sortorder = models.IntegerField(blank=False, null=False)
def _get_subtype(self):
return "HSS Product Photo"
def __unicode__(self):
return u"%s-%s-%s-%s" % (self.product.product.slug,
self.phototype.name, self.sortorder, self.id)
@property
def _filename(self):
if self.phototype:
return u"%s-%s-%s-%s" % (self.product.product.slug,
self.phototype.name, self.sortorder, self.id)
else:
return 'unknown'
class Meta:
verbose_name = "Product Photo"
verbose_name_plural = "Product Photos"
ordering = ['sortorder']
-----------------------------------------------------------------------------
In my admin.py for the module:
-----------------------------------------------------------------------------
from django.contrib import admin
from hss.apps.hssproduct.models import *
class PhotosInline(admin.TabularInline):
model = HSSProductPhoto
class HSSProductAdmin(admin.ModelAdmin):
inlines = [
PhotosInline,
]
admin.site.register(HSSProduct, HSSProductAdmin)
admin.site.register(HSSProductPhotoType)
-----------------------------------------------------------------------------
This makes it easier to have different photos for different
applications for a product, such as one image for the cart, another
for previews, or "live shots" or just specific layout sections.
Next, I have a template tag, "get_product_photos" that works like
this:
{% get_product_photos for product of type "Preview" as preview_photo
%}
Code looks like:
-----------------------------------------------------------------------------
import os, logging
from django import template
from django.template import Library, Node, Variable
from hss.apps.hssproduct.models import *
from satchmo.product.models import ConfigurableProduct,
ProductVariation
log = logging.getLogger('hssproduct.models')
register = template.Library()
class ProductPhotosNode(Node):
def __init__(self, product, photo_type, varname):
self.product = Variable(product)
self.photo_type = photo_type
self.varname = varname
def render(self, context):
photo_type =
HSSProductPhotoType.objects.get(name=self.photo_type)
temp_product = self.product.resolve(context)
ptypes = temp_product.get_subtypes()
if 'ProductVariation' in ptypes:
pv = ProductVariation.objects.get(product=temp_product)
if pv:
temp_product = pv.parent
if photo_type:
photos =
HSSProductPhoto.objects.filter(product=temp_product,
phototype=photo_type)
if photos:
log.debug('Found %s photos' % len(photos))
if len(photos) == 1:
context[self.varname] = photos[0]
else:
log.debug('Returning %s photos' %
len(photos))
context[self.varname] = photos
else:
log.debug('Found 0 photos')
else:
raise template.TemplateSyntaxError, '%s is not a valid
photo type
for this' % self.photo_type
return ''
#get_product_photos for product of type 'Cart' as cart_photo
@register.tag
def get_product_photos(parser, token):
try:
tag_name, for_string, product, of_string, type_string,
type_name,
as_string, varname = token.split_contents()
except:
raise template.TemplateSyntaxError, 'get_product_photos takes
exactly five arguments and you passed %s' % len(bits)
return ProductPhotosNode(product, type_name[1:-1], varname)
-----------------------------------------------------------------------------
Nothing complicated, but for the type of stores I'm using satchmo for,
infinetly more useful than a straight list of photos. Requires some
admin training, but works well enough.
Could stand to be made more fault tolerant, I guess.
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