Add includes only matcher mode
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@@ -103,6 +103,7 @@ _PRESENCE_MODIFIERS = frozenset({"NOT_NULL", "IS_NULL"})
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_MATCH_MODES: list[LabeledOption] = [
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("INCLUDES", "any"),
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("INCLUDES_ALL", "all"),
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("INCLUDES_ONLY", "only"),
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("EXCLUDES", "none"),
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]
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+12
-9
@@ -30,6 +30,7 @@ class Modifier(str, Enum):
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INCLUDES = "INCLUDES"
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EXCLUDES = "EXCLUDES"
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INCLUDES_ALL = "INCLUDES_ALL"
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INCLUDES_ONLY = "INCLUDES_ONLY"
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IS_NULL = "IS_NULL"
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NOT_NULL = "NOT_NULL"
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MATCHES_REGEX = "MATCHES_REGEX"
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@@ -71,6 +72,7 @@ class Modifier(str, Enum):
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cls.INCLUDES,
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cls.EXCLUDES,
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cls.INCLUDES_ALL,
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cls.INCLUDES_ONLY,
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cls.IS_NULL,
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cls.NOT_NULL,
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]
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@@ -317,16 +319,17 @@ class _SetCriterion(_Criterion):
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return Q(**{f"{field_name}__in": self.value}) if self.value else Q()
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if modifier in (Modifier.EXCLUDES, Modifier.NOT_EQUALS):
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return ~Q(**{f"{field_name}__in": self.value}) if self.value else Q()
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if modifier == Modifier.INCLUDES_ALL:
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# INCLUDES_ALL ("related to all of these") is only meaningful for
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# many-to-many fields. A naive Q(field=a) & Q(field=b) collapses
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# to a single join requiring one through-row to equal both values
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# (impossible), so the generic criterion layer cannot build a
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# correct Q. M2M callers must supply their own Q builder at the
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# filter level — see PurchaseFilter._games_to_q for the subquery
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# pattern (chained .filter() calls + pk__in).
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if modifier in (Modifier.INCLUDES_ALL, Modifier.INCLUDES_ONLY):
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# INCLUDES_ALL ("related to all of these") and INCLUDES_ONLY
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# ("related to exactly these, nothing else") are only meaningful
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# for many-to-many fields. A naive Q(field=a) & Q(field=b)
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# collapses to a single join requiring one through-row to equal
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# both values (impossible), so the generic criterion layer cannot
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# build a correct Q. M2M callers must supply their own Q builder
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# at the filter level — see PurchaseFilter._games_to_q for the
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# chained-subquery pattern.
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assert False, (
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"INCLUDES_ALL requires a filter-level Q builder for M2M fields. "
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f"{modifier} requires a filter-level Q builder for M2M fields. "
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"See PurchaseFilter._games_to_q for the chained-subquery pattern."
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)
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raise ValueError(f"Unsupported modifier {modifier} for {type(self).__name__}")
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+19
-8
@@ -389,19 +389,30 @@ class PurchaseFilter(OperatorFilter):
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def _games_to_q(criterion: ChoiceCriterion) -> Q:
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"""Build the Q for the many-to-many ``games`` field.
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``INCLUDES_ALL`` ("related to every selected game") cannot be a single
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``.filter(Q(games=a) & Q(games=b))`` — that collapses to one join and
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would require a single link row to be both games. Instead chain a filter
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per game so each gets its own join, then match by ``pk``. The orthogonal
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``excludes`` channel is applied as a negative, consistent with every
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other modifier. All other modifiers delegate to the criterion.
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``INCLUDES_ALL`` ("related to every selected game") and
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``INCLUDES_ONLY`` ("related to exactly these, nothing else") cannot be
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a single ``.filter(Q(games=a) & Q(games=b))`` — that collapses to one
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join and would require a single link row to be both games. Instead
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chain a filter per game so each gets its own join, then match by
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``pk``. ``INCLUDES_ONLY`` additionally excludes purchases that have
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any game outside the specified set. The orthogonal ``excludes``
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channel is applied as a negative, consistent with every other
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modifier. All other modifiers delegate to the criterion.
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"""
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if criterion.modifier == Modifier.INCLUDES_ALL and criterion.value:
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from games.models import Purchase
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if criterion.modifier in (Modifier.INCLUDES_ALL, Modifier.INCLUDES_ONLY) and criterion.value:
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from games.models import Game, Purchase
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subquery = Purchase.objects.all()
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for game_id in criterion.value:
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subquery = subquery.filter(games=game_id)
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if criterion.modifier == Modifier.INCLUDES_ONLY:
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extra_ids = Game.objects.exclude(
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id__in=criterion.value
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).values_list("id", flat=True)
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if extra_ids:
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subquery = subquery.exclude(games__in=extra_ids)
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q = Q(pk__in=subquery.values("pk"))
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if criterion.excludes:
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q &= ~Q(games__in=criterion.excludes)
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@@ -93,8 +93,8 @@ class FilterBarRenderingTest(TestCase):
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self._assert_range_slider(html)
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def test_purchase_filter_bar_games_has_match_modes(self):
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"""The many-to-many games field surfaces the any/all/none match select;
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single-valued fields (platform) do not."""
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"""The many-to-many games field surfaces the any/all/only/none match
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select; single-valued fields (platform) do not."""
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html = str(
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PurchaseFilterBar(
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filter_json="", preset_list_url="/l", preset_save_url="/s"
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@@ -102,6 +102,7 @@ class FilterBarRenderingTest(TestCase):
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)
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self.assertIn("data-search-select-match", html)
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self.assertIn('value="INCLUDES_ALL"', html)
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self.assertIn('value="INCLUDES_ONLY"', html)
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# Platform is single-valued: no match select before its widget.
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games_start = html.find('data-name="games"')
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platform_start = html.find('data-name="platform"')
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+120
-10
@@ -17,6 +17,21 @@ from common.components import FilterBar
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from games.filters import GameFilter
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class TestModifier:
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def test_includes_only_in_enum(self):
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assert Modifier.INCLUDES_ONLY == "INCLUDES_ONLY"
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def test_includes_only_in_for_multi(self):
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assert Modifier.INCLUDES_ONLY in Modifier.for_multi()
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def test_for_multi_includes_all_four_match_modes(self):
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modes = Modifier.for_multi()
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assert Modifier.INCLUDES in modes
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assert Modifier.INCLUDES_ALL in modes
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assert Modifier.INCLUDES_ONLY in modes
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assert Modifier.EXCLUDES in modes
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class TestStringCriterion:
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def test_equals(self):
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c = StringCriterion(value="zelda", modifier=Modifier.EQUALS)
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@@ -101,11 +116,15 @@ class TestChoiceCriterion:
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c = ChoiceCriterion(value=["f"], excludes=["a"], modifier=Modifier.EXCLUDES)
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assert c.to_q("status") == ~Q(status__in=["f"]) & ~Q(status__in=["a"])
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def test_includes_all_requires_filter_builder(self):
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"""INCLUDES_ALL cannot be built by the generic criterion layer — it
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requires a filter-level Q builder (see PurchaseFilter._games_to_q)."""
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c = ChoiceCriterion(value=["f", "p"], modifier=Modifier.INCLUDES_ALL)
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with pytest.raises(AssertionError, match="INCLUDES_ALL requires"):
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@pytest.mark.parametrize(
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"modifier", [Modifier.INCLUDES_ALL, Modifier.INCLUDES_ONLY]
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)
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def test_m2m_modifiers_require_filter_builder(self, modifier):
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"""INCLUDES_ALL / INCLUDES_ONLY cannot be built by the generic criterion
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layer — they require a filter-level Q builder (see
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PurchaseFilter._games_to_q)."""
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c = ChoiceCriterion(value=["f", "p"], modifier=modifier)
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with pytest.raises(AssertionError, match="requires a filter-level"):
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c.to_q("status")
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def test_not_equals(self):
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@@ -138,11 +157,15 @@ class TestMultiCriterion:
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c = MultiCriterion(value=[1], excludes=[2], modifier=Modifier.EXCLUDES)
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assert c.to_q("game_id") == ~Q(game_id__in=[1]) & ~Q(game_id__in=[2])
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def test_includes_all_requires_filter_builder(self):
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"""INCLUDES_ALL cannot be built by the generic criterion layer — it
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requires a filter-level Q builder (see PurchaseFilter._games_to_q)."""
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c = MultiCriterion(value=[1, 2], modifier=Modifier.INCLUDES_ALL)
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with pytest.raises(AssertionError, match="INCLUDES_ALL requires"):
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@pytest.mark.parametrize(
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"modifier", [Modifier.INCLUDES_ALL, Modifier.INCLUDES_ONLY]
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)
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def test_m2m_modifiers_require_filter_builder(self, modifier):
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"""INCLUDES_ALL / INCLUDES_ONLY cannot be built by the generic criterion
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layer — they require a filter-level Q builder (see
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PurchaseFilter._games_to_q)."""
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c = MultiCriterion(value=[1, 2], modifier=modifier)
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with pytest.raises(AssertionError, match="requires a filter-level"):
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c.to_q("games")
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def test_is_null(self):
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@@ -337,6 +360,93 @@ class TestPurchaseGamesIncludesAllAgainstDB:
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assert result == {seeded["both"], seeded["all_three"]}
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class TestPurchaseGamesIncludesOnlyAgainstDB:
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"""INCLUDES_ONLY on the many-to-many ``Purchase.games`` should match only
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purchases linked to *exactly* the given games — Stash's ``only`` mode,
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which INCLUDES_ALL does not provide (it includes supersets)."""
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def _seed(self):
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import datetime
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from games.models import Game, Platform, Purchase
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platform, _ = Platform.objects.get_or_create(name="Test", icon="test")
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a, _ = Game.objects.get_or_create(name="A", defaults={"platform": platform})
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b, _ = Game.objects.get_or_create(name="B", defaults={"platform": platform})
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c, _ = Game.objects.get_or_create(name="C", defaults={"platform": platform})
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def make(linked):
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purchase = Purchase.objects.create(
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platform=platform, date_purchased=datetime.date(2024, 1, 1)
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)
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purchase.games.set(linked)
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return purchase
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return {
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"a": a,
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"b": b,
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"both": make([a, b]),
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"only_a": make([a]),
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"all_three": make([a, b, c]),
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}
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@pytest.mark.django_db
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def test_includes_only_matches_exact_set(self):
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"""INCLUDES_ONLY [A, B] returns only purchases with exactly A and B."""
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from games.filters import PurchaseFilter
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from games.models import Purchase
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seeded = self._seed()
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pf = PurchaseFilter.from_json(
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{
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"games": {
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"value": [seeded["a"].id, seeded["b"].id],
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"modifier": "INCLUDES_ONLY",
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}
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}
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)
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result = set(Purchase.objects.filter(pf.to_q()))
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assert result == {seeded["both"]}
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@pytest.mark.django_db
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def test_includes_only_single_game(self):
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"""INCLUDES_ONLY [A] = exactly game A, no others."""
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from games.filters import PurchaseFilter
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from games.models import Purchase
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seeded = self._seed()
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pf = PurchaseFilter.from_json(
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{
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"games": {
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"value": [seeded["a"].id],
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"modifier": "INCLUDES_ONLY",
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}
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}
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)
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result = set(Purchase.objects.filter(pf.to_q()))
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assert result == {seeded["only_a"]}
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@pytest.mark.django_db
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def test_includes_only_contrast_with_includes_all(self):
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"""INCLUDES_ONLY excludes the superset that INCLUDES_ALL would match."""
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from games.filters import PurchaseFilter
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from games.models import Purchase
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seeded = self._seed()
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pf = PurchaseFilter.from_json(
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{
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"games": {
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"value": [seeded["a"].id, seeded["b"].id],
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"modifier": "INCLUDES_ONLY",
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}
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}
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)
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result = set(Purchase.objects.filter(pf.to_q()))
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# all_three has A, B, C — INCLUDES_ALL would match it, ONLY does not.
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assert seeded["all_three"] not in result
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assert seeded["both"] in result
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class TestGameFilterFromJson:
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def test_status_choice_criterion(self):
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gf = GameFilter.from_json(
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@@ -223,7 +223,12 @@ class FilterSelectComponentTest(unittest.TestCase):
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self.assertIn(">Obscure Game</span>", html)
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self.assertIn('data-value="4172"', html)
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MATCH_MODES = [("INCLUDES", "any"), ("INCLUDES_ALL", "all"), ("EXCLUDES", "none")]
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MATCH_MODES = [
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("INCLUDES", "any"),
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("INCLUDES_ALL", "all"),
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("INCLUDES_ONLY", "only"),
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("EXCLUDES", "none"),
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]
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def test_match_modes_render_native_select(self):
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html = FilterSelect(field_name="games", match_modes=self.MATCH_MODES)
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@@ -231,6 +236,8 @@ class FilterSelectComponentTest(unittest.TestCase):
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self.assertIn("data-search-select-match", html)
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self.assertIn('value="INCLUDES_ALL"', html)
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self.assertIn(">all</option>", html)
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self.assertIn('value="INCLUDES_ONLY"', html)
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self.assertIn(">only</option>", html)
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# The container exposes the active mode (defaults to the first) for the JS.
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self.assertIn('data-match="INCLUDES"', html)
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