GeeWee/prefetcH_related.py

## prefetcH_related.py
all_chefs = ItalianChef.objects.all()
# In the next line, we make one database queries to fetch all the favourite dishes of all the chefs
all_chefs = all_chefs.prefetch_related('favourite_dish')
for chef in all_chefs:
   # In the next line no database queries are made. The favourite dishes are already in memory.
   chefs_favourite_dish = chef.favourite_dish
   print(f"{chef}'s favourite dish is {chefs_favourite_dish}")
	all_chefs = ItalianChef.objects.all()
	# In the next line, we make one database queries to fetch all the favourite dishes of all the chefs
	all_chefs = all_chefs.prefetch_related('favourite_dish')
	for chef in all_chefs:
	# In the next line no database queries are made. The favourite dishes are already in memory.
	chefs_favourite_dish = chef.favourite_dish
	print(f"{chef}'s favourite dish is {chefs_favourite_dish}")