def delete_product(product_id):
product = Product.query(Product.product_id == product_id).get()
if product is None:
return make_error(404,"This product does not exist, so can't be deleted.")
product.key.delete()
return {
'success': "Product deleted successfully."
}
def create_product(product_id=None,product_name=None):
if product_id is None or len(product_id) <= 3:
product_id = random_key(10)
existing_products = Product.query(Product.product_id == product_id).fetch(1)
if len(existing_products) != 0:
import logging
logging.error('Product with ID "' + product_id + '" already exists.' )
return make_error(400,'A product with ID ' + product_id + ' already exists, overwriting is forbidden.')
product = Product(product_id=product_id)
if product_name is not None:
product.product_name = product_name
product.put()
return product.product_id
def list_products(start_token=''):
items_per_page = 100
cursor = Cursor(urlsafe=start_token)
products, next_cursor, more = Product.query().order(Product.product_id).fetch_page(items_per_page,start_cursor=cursor)
items = []
for product in products:
items.append({
'product_id': product.product_id,
'product_name': product.product_name
})
response = {
'kind': api_id + '#productList',
'totalItems': len(products),
'itemsPerPage': items_per_page,
'items': items
}
if more and next_cursor:
response['nextPageToken'] = next_cursor
return response
