python - Displaying multiple instances in a ManyToManyField in Django -

here's have in image:

i display colored in green. display each product cost. bob cost $12010 , jill cost $12010 total price of $24020.

here's code far:

class purchaseorder(models.model):     product = models.manytomanyfield('product', null =true)      def get_products(self):         return "<br> </br>".join([p.products p in self.product.all()])     get_products.allow_tags = true  class product(models.model):     products = models.charfield(max_length=256, null =true)     price_for_each_item = models.floatfield() #here want displayed green 

how can this? notice each product gets new line. i'm trying each indivdual item on same line indivdual item's price. example here is,

bob $12010.0

jill $12010.0

you can use string concatenation concatenate name price. if products should first part of string , price_for_each_item second part, use:

def get_products(self):     return "<br />".join("%s %s" % (p.products, p.price_for_each_item) p in self.product.all()) 

a few unrelated comments:
note that, according xhtml standards (and recommended html standard), tag without real content, <br> tag should self-closing (thus <br /> instead of <br> </br>).

also, removing square brackets inside join function create generator instead of list. not create (useless) intermediary list in memory , process faster. think it's habit develop in case ever have work large lists reduced memory needs substantial.

and note, null=true doesn't on manytomanyfield. null=true removes not null clause on database-level, m2m relations saved in separate table entirely. if model has no related models in m2m relation, there no records in m2m table.