Tax clean-up and refactoring (SHOOP-975) #189

suutari-ai · 2015-10-01T05:31:47Z

Main part of all this goes to refactoring everything to use
Shop.create_price. That should prevent taxful/taxless price mismatches
in a Shop.

Prices and other money amounts are now passed as Money and Price objects
in the code, which ensures some more type safety. Yeppee!

TaxModule API was rethought through and got some changes.

OrderSource, BaseBasket and StoredBasket now have the price
unit (=currency+taxfullness) stored in them to avoid mixing units after
a basket load.

Calculation of taxes is made more explicit in OrderSource API.

Made OrderLine, SourceLine and PriceInfo to use unified API for price
fields (named Priceful). This should help when implementing template
helpers for rendering prices taxful/taxless depending on
user's/merchant's preference (Shop's taxfullness could differ from
rendering taxfullnes as long as TaxModule may calculate taxes
efficiently, which of course is not always true though.)

There is some small fixes and refactorings included here and there for
some things I found out while implementing this. Hope you don't mind.

TODO:

Assigning customers to correct tax groups on creation (retail
customers and company customers)
Implementing value-added taxes correctly (i.e. not just selecting the
first tax, but actually adding them together)
The taxful/taxless price rendering stuff as said above.
Cleaning up the TODOs
Documentation of the whole system (for developers and for merchants)

Good luck reviewing! Have fun!

Refs SHOOP-975

Test not fixed yet though; marked with xfail.

This is unused. Refs SHOOP-975

Refs SHOOP-975

These would need a price unit (i.e. currency and taxfulness info) to be useful. Since they are not limited to single Shop, they can't easily just inherit the unit from a Shop. Until we have decided how to handle price units that are not bound to a shop, we're better without them. Refs SHOOP-975

Make untaxed mandatory and use its currency for type checking the sums. Remove skipping of line taxes without amount, since their base amount should still be taken into account. Add a docstring. Refs SHOOP-975

anders-jenkins · 2015-10-01T05:40:57Z

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Test FAILed.

anders-jenkins · 2015-10-01T05:51:17Z

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Test PASSed.

akx · 2015-10-01T06:36:41Z

shoop/admin/currencybound.py

+
+
+class CurrencyBound(object):
+    def __init__(self, currency=None, *args, **kwargs):


Docstring? What's the use for this class?

akx · 2015-10-01T07:21:56Z

Aside from the few nits I found to pick, this looks like good stuff.

I know you're diligent enough to have tested the logic thoroughly, so I didn't start to build a "mental map" of it right now -- especially with a diff this huge.

Pikkupomo · 2015-10-01T07:51:52Z

Issue with TaxRule

Rule 1:
Tax = 25% tax
customer_tax_group = "normal customer"
country_code_pattern = FI
postal_code_pattern=20300-20400

Rule 2:
Tax = 50% tax
country_code_pattern = FI
postal_code_pattern=20300-20400

Customer has Tax group = "normal customer"

In checkout confirm, you see 50% taxation in use. this surely is a bug:

Money without currency makes no sense. Better to be explicit with this rather than defaulting to some external setting. Refs SHOOP-975

Refs SHOOP-975

Just for simplicity. Refs SHOOP-975

Refs SHOOP-975

There is no need to require id rather than object. Change the argument names to `shop` and `products`, since they will accept real objects too. Note: Passing ids is still supported.

These pragma directives are cheating.

Easier to debug than "NoneType object has no attribute x". Refs SHOOP-975

Refs SHOOP-975

To get nicer repr; useful in debugging test failures. Refs SHOOP-975

Refs SHOOP-975

Rename unit_price to base_unit_price in OrderLine, SourceLine, BasketLine, LinePriceMixin, etc. Refs SHOOP-975

Also move it to shoop.core.pricing. Refs SHOOP-975

…amount For unifying the price fields with PriceInfo. This will be nice when implementing template helpers for price rendering with/without taxes. Refs SHOOP-975

Move stuff from PriceInfo to Priceful mixin and use the Priceful mixin for PriceInfo too. Now all three PriceInfo, OrderLine and SourceLine use the same Priceful API for price stuff. Write some new tests for Priceful too. Refs SHOOP-975

Refs SHOOP-975

These are created with makemigrations and then fine tuned manually, because some field renames were not detected correctly. Refs SHOOP-975

Fix the definition of is_orderable to use `(x|length > 0)` instead of `bool(x)`, since `bool` is not available as a Jinja function.

Refs SHOOP-975 / SHOOP-1074

* Allow changing Tax objects that are not in use (not in order lines). * Allow always changing the enabled property. * Allow always changing the translated names. * Raise ValidationError on clean rather than ImmutabilityError on save so that a nice message will be displayed to user rather than "Internal server error". Refs SHOOP-975

anders-jenkins · 2015-10-01T12:09:16Z

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Test FAILed.

suutari-ai · 2015-10-01T12:19:27Z

retest this please

anders-jenkins · 2015-10-01T12:25:16Z

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Test PASSed.

akx · 2015-10-01T12:26:48Z

Well, then.

Tax clean-up and refactoring (SHOOP-975)

Basket API: allow adding zero priced product

suutari-ai and others added 10 commits October 1, 2015 05:10

default_tax: Tag TODOs with "(TAX)"

b784b4b

tests/admin: Fix test_tax_module test

4df4314

Refs SHOOP-975

tests/core: Comment out test_methods.test_tax

3618e42

Test not fixed yet though; marked with xfail.

Remove Product.get_taxed_price

6e20e85

This is unused. Refs SHOOP-975

Money: Add currency support

b10070b

Refs SHOOP-975

Jinja filters: Replace home_currency with money

acf1aec

Rename MoneyField to MoneyValueField

f7a71ff

TaxSummary: Improve from_line_taxes

d7af045

Make untaxed mandatory and use its currency for type checking the sums. Remove skipping of line taxes without amount, since their base amount should still be taken into account. Add a docstring. Refs SHOOP-975

TaxingContext: Store the location too

04e24a4

suutari-ai force-pushed the tax-fix3 branch from c4ccd0d to a53c7df Compare October 1, 2015 05:46

akx reviewed Oct 1, 2015
View reviewed changes

suutari-ai and others added 21 commits October 1, 2015 15:04

Make currency mandatory for Money

06d54ca

Money without currency makes no sense. Better to be explicit with this rather than defaulting to some external setting. Refs SHOOP-975

Admin Dashboard: Show blocks in currency of first Shop

df8bcd0

Refs SHOOP-975

DatabaseBasketStorage.save: Use basket.product_ids

0a16d5d

Just for simplicity. Refs SHOOP-975

Mocker: Set also ShopProduct.default_price_value

d174af6

Add and improve some docstrings

fe04d49

Refs SHOOP-975

MethodQuerySet.available_ids: Change arg names

b787b00

There is no need to require id rather than object. Change the argument names to `shop` and `products`, since they will accept real objects too. Note: Passing ids is still supported.

get_basket: Remove "pragma: no branch"

dff117a

These pragma directives are cheating.

Product.get_shop_instance: Raise DoesNotExists

e1fb70f

Easier to debug than "NoneType object has no attribute x". Refs SHOOP-975

TaxedPrice: Add tax_amount property

e2a9240

Refs SHOOP-975

Shop: Make ShoopModel

7883fe6

To get nicer repr; useful in debugging test failures. Refs SHOOP-975

PriceInfo: Rename unit_base_price to base_unit_price

324b9e0

Refs SHOOP-975

PriceInfo: Rename unit_price to discounted_unit_price

544b92c

Refs SHOOP-975

Rename unit_price to base_unit_price

23f10bb

Rename unit_price to base_unit_price in OrderLine, SourceLine, BasketLine, LinePriceMixin, etc. Refs SHOOP-975

Rename LinePriceMixin to Priceful

d3c510f

Also move it to shoop.core.pricing. Refs SHOOP-975

Rename total_discount to discount_amount and total_tax_amount to tax_…

0e5aaf7

…amount For unifying the price fields with PriceInfo. This will be nice when implementing template helpers for price rendering with/without taxes. Refs SHOOP-975

Priceful: Extend API and use for PriceInfo too

e607a44

Move stuff from PriceInfo to Priceful mixin and use the Priceful mixin for PriceInfo too. Now all three PriceInfo, OrderLine and SourceLine use the same Priceful API for price stuff. Write some new tests for Priceful too. Refs SHOOP-975

Templates: Make use of line.is_discounted

a3a2407

Refs SHOOP-975

Add migrations

d286c4b

These are created with makemigrations and then fine tuned manually, because some field renames were not detected correctly. Refs SHOOP-975

Classic Gray: Fix simple_variation_form

42eb75b

Fix the definition of is_orderable to use `(x|length > 0)` instead of `bool(x)`, since `bool` is not available as a Jinja function.

Default Theme: Fix variation children price rendering

8d4f1da

Refs SHOOP-975 / SHOOP-1074

suutari-ai force-pushed the tax-fix3 branch from 0f540e2 to 3461637 Compare October 1, 2015 12:04

akx added a commit that referenced this pull request Oct 1, 2015

Merge pull request #189 from suutari-ai/tax-fix3

2cb5a50

Tax clean-up and refactoring (SHOOP-975)

akx merged commit 2cb5a50 into shuup:master Oct 1, 2015

suutari-ai deleted the tax-fix3 branch October 1, 2015 12:27

tulimaki pushed a commit to tulimaki/shuup that referenced this pull request Dec 22, 2017

Merge pull request shuup#189 from Pikkupomo/zero-price

efebfff

Basket API: allow adding zero priced product

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Tax clean-up and refactoring (SHOOP-975) #189

Tax clean-up and refactoring (SHOOP-975) #189

suutari-ai commented Oct 1, 2015

anders-jenkins commented Oct 1, 2015

anders-jenkins commented Oct 1, 2015

akx Oct 1, 2015

suutari-ai Oct 1, 2015

akx commented Oct 1, 2015

Pikkupomo commented Oct 1, 2015

anders-jenkins commented Oct 1, 2015

suutari-ai commented Oct 1, 2015

anders-jenkins commented Oct 1, 2015

akx commented Oct 1, 2015



		class CurrencyBound(object):
		def __init__(self, currency=None, args, *kwargs):

Tax clean-up and refactoring (SHOOP-975) #189

Tax clean-up and refactoring (SHOOP-975) #189

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