def _raise_if_cant_link_to_parent(self, parent, variables):
"""
Validates relation possibility for `self.link_to_parent()`
:param parent: parent product of self
:type parent: Product
:param variables:
:type variables: dict|None
"""
if parent.is_variation_child():
raise ImpossibleProductModeException(_(
"Multilevel parentage hierarchies aren't supported (parent is a child already)"
),
code="multilevel")
if parent.mode == ProductMode.VARIABLE_VARIATION_PARENT and not variables:
raise ImpossibleProductModeException(_(
"Parent is a variable variation parent, yet variables were not passed"
),
code="no_variables")
if parent.mode == ProductMode.SIMPLE_VARIATION_PARENT and variables:
raise ImpossibleProductModeException(
"Parent is a simple variation parent, yet variables were passed",
code="extra_variables")
if self.mode == ProductMode.SIMPLE_VARIATION_PARENT:
raise ImpossibleProductModeException(_(
"Multilevel parentage hierarchies aren't supported (this product is a simple variation parent)"
),
code="multilevel")
if self.mode == ProductMode.VARIABLE_VARIATION_PARENT:
raise ImpossibleProductModeException(_(
"Multilevel parentage hierarchies aren't supported (this product is a variable variation parent)"
),
code="multilevel")
def make_package(self, package_def):
if self.mode != ProductMode.NORMAL:
raise ImpossibleProductModeException(
_("Product is currently not a normal product, can't turn into package"),
code="abnormal"
)
for child_product, quantity in six.iteritems(package_def):
# :type child_product: Product
if child_product.is_variation_parent():
raise ImpossibleProductModeException(
_("Variation parents can not belong into a package"),
code="abnormal"
)
if child_product.is_package_parent():
raise ImpossibleProductModeException(_("Packages can't be nested"), code="multilevel")
if quantity <= 0:
raise ImpossibleProductModeException(_("Quantity %s is invalid") % quantity, code="quantity")
ProductPackageLink.objects.create(parent=self, child=child_product, quantity=quantity)
self.verify_mode()