From f075aabd4ff705eebeb16676fdd13295cffee8a7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Fri, 16 Feb 2024 07:28:26 +0100
Subject: [PATCH 01/15] Raise proper exception if no child models are available

---
 polymorphic/admin/parentadmin.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/polymorphic/admin/parentadmin.py b/polymorphic/admin/parentadmin.py
index d021522d..b96dc2bd 100644
--- a/polymorphic/admin/parentadmin.py
+++ b/polymorphic/admin/parentadmin.py
@@ -123,9 +123,14 @@ def get_child_type_choices(self, request, action):
         Return a list of polymorphic types for which the user has the permission to perform the given action.
         """
         self._lazy_setup()
+
+        child_models = self.get_child_models()
+        if not child_models:
+            raise ImproperlyConfigured("No child models are available.")
+
         choices = []
         content_types = ContentType.objects.get_for_models(
-            *self.get_child_models(), for_concrete_models=False
+            *child_models, for_concrete_models=False
         )
 
         for model, ct in content_types.items():

From d12eccf46636d01214eb69c07b8406c1528d4f2d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Thu, 29 Feb 2024 10:34:08 +0100
Subject: [PATCH 02/15] Auto-discover child models by default

---
 polymorphic/admin/helpers.py     | 17 +++++++++++++++++
 polymorphic/admin/parentadmin.py | 16 +++++++++++++---
 2 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/polymorphic/admin/helpers.py b/polymorphic/admin/helpers.py
index bb5b80d7..98035b4d 100644
--- a/polymorphic/admin/helpers.py
+++ b/polymorphic/admin/helpers.py
@@ -62,6 +62,7 @@ def __iter__(self):
         for form in self.formset.extra_forms + self.formset.empty_forms:
             model = form._meta.model
             child_inline = self.opts.get_child_inline_instance(model)
+
             yield PolymorphicInlineAdminForm(
                 formset=self.formset,
                 form=form,
@@ -140,3 +141,19 @@ def get_inline_formsets(self, request, formsets, inline_instances, obj=None, *ar
                 admin_formset.request = request
                 admin_formset.obj = obj
         return inline_admin_formsets
+
+
+def get_leaf_subclasses(cls):
+    "Get leaf subclasses of `cls` class"
+
+    result = []
+
+    subclasses = cls.__subclasses__()
+
+    if not subclasses:
+        result.append(cls)
+    else:
+        for subclass in subclasses:
+            result.extend(get_leaf_subclasses(subclass))
+
+    return result
diff --git a/polymorphic/admin/parentadmin.py b/polymorphic/admin/parentadmin.py
index b96dc2bd..14728829 100644
--- a/polymorphic/admin/parentadmin.py
+++ b/polymorphic/admin/parentadmin.py
@@ -18,6 +18,7 @@
 from polymorphic.utils import get_base_polymorphic_model
 
 from .forms import PolymorphicModelChoiceForm
+from .helpers import get_leaf_subclasses
 
 
 class RegistrationClosed(RuntimeError):
@@ -113,10 +114,19 @@ def get_child_models(self):
         The model classes can be retrieved as ``base_model.__subclasses__()``,
         a setting in a config file, or a query of a plugin registration system at your option
         """
-        if self.child_models is None:
-            raise NotImplementedError("Implement get_child_models() or child_models")
+        if self.child_models is not None:
+            return self.child_models
 
-        return self.child_models
+        child_models = get_leaf_subclasses(self.base_model)
+
+        if child_models:
+            return child_models
+
+        raise ImproperlyConfigured(
+            "No child models found for '{self.base_model.__name__}', please "
+            "define the 'child_models' attribute or overwrite the "
+            "'get_child_models' method."
+        )
 
     def get_child_type_choices(self, request, action):
         """

From 308f1d4c719fddb54bc3c27e272372b961582523 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Thu, 29 Feb 2024 10:37:14 +0100
Subject: [PATCH 03/15] Auto-discover child inlines by default

---
 polymorphic/admin/inlines.py | 36 +++++++++++++++++++++++++++++++++---
 1 file changed, 33 insertions(+), 3 deletions(-)

diff --git a/polymorphic/admin/inlines.py b/polymorphic/admin/inlines.py
index 39a1f71d..d4184e5d 100644
--- a/polymorphic/admin/inlines.py
+++ b/polymorphic/admin/inlines.py
@@ -19,7 +19,7 @@
 )
 from polymorphic.formsets.utils import add_media
 
-from .helpers import PolymorphicInlineSupportMixin
+from .helpers import PolymorphicInlineSupportMixin, get_leaf_subclasses
 
 
 class PolymorphicInlineModelAdmin(InlineModelAdmin):
@@ -52,7 +52,7 @@ class PolymorphicInlineModelAdmin(InlineModelAdmin):
 
     #: Inlines for all model sub types that can be displayed in this inline.
     #: Each row is a :class:`PolymorphicInlineModelAdmin.Child`
-    child_inlines = ()
+    child_inlines = None
 
     def __init__(self, parent_model, admin_site):
         super().__init__(parent_model, admin_site)
@@ -76,12 +76,42 @@ def __init__(self, parent_model, admin_site):
         for child_inline in self.child_inline_instances:
             self._child_inlines_lookup[child_inline.model] = child_inline
 
+    def get_child_inlines(self):
+        """
+        Return the derived inline classes which this admin should handle.
+        This should return a list of tuples, exactly like :attr:`child_inlines` is.
+
+        The inline classes can be retrieved as ``base_inline.__subclasses__()``,
+        a setting in a config file, or a query of a plugin registration system at your option
+        """
+        if self.child_inlines is not None:
+            return self.child_inlines
+
+        child_inlines = get_leaf_subclasses(PolymorphicInlineModelAdmin.Child)
+        child_inlines = tuple(
+            inline
+            for inline in child_inlines
+            if (
+                inline.model is not None and
+                issubclass(inline.model, self.model)
+            )
+        )
+
+        if child_inlines:
+            return child_inlines
+
+        raise ImproperlyConfigured(
+            "No child inlines found for '{self.model.__name__}', please "
+            "define the 'child_inlines' attribute or overwrite the "
+            "'get_child_inlines()' method."
+        )
+
     def get_child_inline_instances(self):
         """
         :rtype List[PolymorphicInlineModelAdmin.Child]
         """
         instances = []
-        for ChildInlineType in self.child_inlines:
+        for ChildInlineType in self.get_child_inlines():
             instances.append(ChildInlineType(parent_inline=self))
         return instances
 

From f8a93027cc9b9e2c26518d0b826c407285524ca8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Tue, 5 Mar 2024 01:44:19 +0100
Subject: [PATCH 04/15] Fix string template

---
 polymorphic/admin/inlines.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/polymorphic/admin/inlines.py b/polymorphic/admin/inlines.py
index d4184e5d..71ebab9a 100644
--- a/polymorphic/admin/inlines.py
+++ b/polymorphic/admin/inlines.py
@@ -101,9 +101,9 @@ def get_child_inlines(self):
             return child_inlines
 
         raise ImproperlyConfigured(
-            "No child inlines found for '{self.model.__name__}', please "
-            "define the 'child_inlines' attribute or overwrite the "
-            "'get_child_inlines()' method."
+            "No child inlines found for '{}', please define the "
+            "'child_inlines' attribute or overwrite the 'get_child_inlines()' "
+            "method.".format(self.model.__name__)
         )
 
     def get_child_inline_instances(self):

From 87e4b959dadf2b8df531ba1816a1aa3117411cca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Wed, 27 Mar 2024 14:07:20 +0100
Subject: [PATCH 05/15] Fix string template

---
 polymorphic/admin/inlines.py     | 6 +++---
 polymorphic/admin/parentadmin.py | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/polymorphic/admin/inlines.py b/polymorphic/admin/inlines.py
index 3e08a8b7..e2cbffea 100644
--- a/polymorphic/admin/inlines.py
+++ b/polymorphic/admin/inlines.py
@@ -102,9 +102,9 @@ def get_child_inlines(self):
             return child_inlines
 
         raise ImproperlyConfigured(
-            "No child inlines found for '{}', please define the "
-            "'child_inlines' attribute or overwrite the 'get_child_inlines()' "
-            "method.".format(self.model.__name__)
+            f"No child inlines found for '{self.model.__name__}', please "
+            "define the 'child_inlines' attribute or overwrite the "
+            "'get_child_inlines()' method."
         )
 
     def get_child_inline_instances(self):
diff --git a/polymorphic/admin/parentadmin.py b/polymorphic/admin/parentadmin.py
index af319bfc..340b90e1 100644
--- a/polymorphic/admin/parentadmin.py
+++ b/polymorphic/admin/parentadmin.py
@@ -124,7 +124,7 @@ def get_child_models(self):
             return child_models
 
         raise ImproperlyConfigured(
-            "No child models found for '{self.base_model.__name__}', please "
+            f"No child models found for '{self.base_model.__name__}', please "
             "define the 'child_models' attribute or overwrite the "
             "'get_child_models' method."
         )

From 0de8744621a99d0321078df52b7e4510d14ec6c9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Wed, 27 Mar 2024 14:12:52 +0100
Subject: [PATCH 06/15] Adjust DocStrings to pep8

---
 polymorphic/admin/inlines.py     | 11 +++++++----
 polymorphic/admin/parentadmin.py |  9 ++++++---
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/polymorphic/admin/inlines.py b/polymorphic/admin/inlines.py
index e2cbffea..455aea8d 100644
--- a/polymorphic/admin/inlines.py
+++ b/polymorphic/admin/inlines.py
@@ -79,11 +79,14 @@ def __init__(self, parent_model, admin_site):
 
     def get_child_inlines(self):
         """
-        Return the derived inline classes which this admin should handle.
-        This should return a list of tuples, exactly like :attr:`child_inlines` is.
+        Return the derived inline classes which this admin should handle
 
-        The inline classes can be retrieved as ``base_inline.__subclasses__()``,
-        a setting in a config file, or a query of a plugin registration system at your option
+        This should return a list of tuples, exactly like
+        :attr:`child_inlines` is.
+
+        The inline classes can be retrieved as
+        ``base_inline.__subclasses__()``, a setting in a config file, or
+        a query of a plugin registration system at your option
         """
         if self.child_inlines is not None:
             return self.child_inlines
diff --git a/polymorphic/admin/parentadmin.py b/polymorphic/admin/parentadmin.py
index 340b90e1..cc8a193b 100644
--- a/polymorphic/admin/parentadmin.py
+++ b/polymorphic/admin/parentadmin.py
@@ -110,10 +110,13 @@ def register_child(self, model, model_admin):
     def get_child_models(self):
         """
         Return the derived model classes which this admin should handle.
-        This should return a list of tuples, exactly like :attr:`child_models` is.
 
-        The model classes can be retrieved as ``base_model.__subclasses__()``,
-        a setting in a config file, or a query of a plugin registration system at your option
+        This should return a list of tuples, exactly like
+        :attr:`child_models` is.
+
+        The model classes can be retrieved as
+        ``base_model.__subclasses__()``, a setting in a config file, or
+        a query of a plugin registration system at your option
         """
         if self.child_models is not None:
             return self.child_models

From c97c5c68772fc7bab2880f4e353e2783568aee1d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Sun, 19 May 2024 22:02:34 +0200
Subject: [PATCH 07/15] Use already initialized `_child_models`

---
 polymorphic/admin/parentadmin.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/polymorphic/admin/parentadmin.py b/polymorphic/admin/parentadmin.py
index cc8a193b..355de6b9 100644
--- a/polymorphic/admin/parentadmin.py
+++ b/polymorphic/admin/parentadmin.py
@@ -138,7 +138,7 @@ def get_child_type_choices(self, request, action):
         """
         self._lazy_setup()
 
-        child_models = self.get_child_models()
+        child_models = self._child_models
         if not child_models:
             raise ImproperlyConfigured("No child models are available.")
 

From 7a0f54ca40ad6a596a0761f12ff59e9c5e61db7b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Sun, 19 May 2024 22:03:25 +0200
Subject: [PATCH 08/15] Allow to exclude child subclasses

---
 polymorphic/admin/helpers.py     | 10 +++++-----
 polymorphic/admin/inlines.py     |  5 ++++-
 polymorphic/admin/parentadmin.py |  5 ++++-
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/polymorphic/admin/helpers.py b/polymorphic/admin/helpers.py
index d819f641..8961be70 100644
--- a/polymorphic/admin/helpers.py
+++ b/polymorphic/admin/helpers.py
@@ -144,17 +144,17 @@ def get_inline_formsets(self, request, formsets, inline_instances, obj=None, *ar
         return inline_admin_formsets
 
 
-def get_leaf_subclasses(cls):
+def get_leaf_subclasses(cls, exclude=None):
     "Get leaf subclasses of `cls` class"
 
     result = []
 
     subclasses = cls.__subclasses__()
 
-    if not subclasses:
-        result.append(cls)
-    else:
+    if subclasses:
         for subclass in subclasses:
-            result.extend(get_leaf_subclasses(subclass))
+            result.extend(get_leaf_subclasses(subclass, exclude))
+    elif not (exclude and cls in exclude):
+        result.append(cls)
 
     return result
diff --git a/polymorphic/admin/inlines.py b/polymorphic/admin/inlines.py
index 455aea8d..6f76011c 100644
--- a/polymorphic/admin/inlines.py
+++ b/polymorphic/admin/inlines.py
@@ -54,6 +54,7 @@ class PolymorphicInlineModelAdmin(InlineModelAdmin):
     #: Inlines for all model sub types that can be displayed in this inline.
     #: Each row is a :class:`PolymorphicInlineModelAdmin.Child`
     child_inlines = None
+    exclude_childs = None
 
     def __init__(self, parent_model, admin_site):
         super().__init__(parent_model, admin_site)
@@ -91,7 +92,9 @@ def get_child_inlines(self):
         if self.child_inlines is not None:
             return self.child_inlines
 
-        child_inlines = get_leaf_subclasses(PolymorphicInlineModelAdmin.Child)
+        child_inlines = get_leaf_subclasses(
+            PolymorphicInlineModelAdmin.Child, self.exclude_childs
+        )
         child_inlines = tuple(
             inline
             for inline in child_inlines
diff --git a/polymorphic/admin/parentadmin.py b/polymorphic/admin/parentadmin.py
index 355de6b9..9dd96a66 100644
--- a/polymorphic/admin/parentadmin.py
+++ b/polymorphic/admin/parentadmin.py
@@ -51,6 +51,7 @@ class PolymorphicParentModelAdmin(admin.ModelAdmin):
 
     #: The child models that should be displayed
     child_models = None
+    exclude_childs = None
 
     #: Whether the list should be polymorphic too, leave to ``False`` to optimize
     polymorphic_list = False
@@ -121,7 +122,9 @@ def get_child_models(self):
         if self.child_models is not None:
             return self.child_models
 
-        child_models = get_leaf_subclasses(self.base_model)
+        child_models = get_leaf_subclasses(
+            self.base_model, self.exclude_childs
+        )
 
         if child_models:
             return child_models

From aaa7fa316d8b196ea2ff57a65eadc2868aaf56ba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Mon, 17 Jun 2024 13:13:26 +0200
Subject: [PATCH 09/15] Don't consider `abstract` Models as leaf subclasses

---
 polymorphic/admin/helpers.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/polymorphic/admin/helpers.py b/polymorphic/admin/helpers.py
index 8961be70..aa991613 100644
--- a/polymorphic/admin/helpers.py
+++ b/polymorphic/admin/helpers.py
@@ -154,7 +154,10 @@ def get_leaf_subclasses(cls, exclude=None):
     if subclasses:
         for subclass in subclasses:
             result.extend(get_leaf_subclasses(subclass, exclude))
-    elif not (exclude and cls in exclude):
+    elif not (
+        (hasattr(cls, '_meta') and cls._meta.abstract) or
+        (exclude and cls in exclude)
+    ):
         result.append(cls)
 
     return result

From 0f5f3026a752f793261e8e3975fd0f40342f330b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Mon, 2 Sep 2024 07:48:58 +0200
Subject: [PATCH 10/15] Replace `childs` for `children`

---
 polymorphic/admin/inlines.py     | 4 ++--
 polymorphic/admin/parentadmin.py | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/polymorphic/admin/inlines.py b/polymorphic/admin/inlines.py
index 6f76011c..c3f9298b 100644
--- a/polymorphic/admin/inlines.py
+++ b/polymorphic/admin/inlines.py
@@ -54,7 +54,7 @@ class PolymorphicInlineModelAdmin(InlineModelAdmin):
     #: Inlines for all model sub types that can be displayed in this inline.
     #: Each row is a :class:`PolymorphicInlineModelAdmin.Child`
     child_inlines = None
-    exclude_childs = None
+    exclude_children = None
 
     def __init__(self, parent_model, admin_site):
         super().__init__(parent_model, admin_site)
@@ -93,7 +93,7 @@ def get_child_inlines(self):
             return self.child_inlines
 
         child_inlines = get_leaf_subclasses(
-            PolymorphicInlineModelAdmin.Child, self.exclude_childs
+            PolymorphicInlineModelAdmin.Child, self.exclude_children
         )
         child_inlines = tuple(
             inline
diff --git a/polymorphic/admin/parentadmin.py b/polymorphic/admin/parentadmin.py
index 9dd96a66..8ac0d57c 100644
--- a/polymorphic/admin/parentadmin.py
+++ b/polymorphic/admin/parentadmin.py
@@ -51,7 +51,7 @@ class PolymorphicParentModelAdmin(admin.ModelAdmin):
 
     #: The child models that should be displayed
     child_models = None
-    exclude_childs = None
+    exclude_children = None
 
     #: Whether the list should be polymorphic too, leave to ``False`` to optimize
     polymorphic_list = False
@@ -123,7 +123,7 @@ def get_child_models(self):
             return self.child_models
 
         child_models = get_leaf_subclasses(
-            self.base_model, self.exclude_childs
+            self.base_model, self.exclude_children
         )
 
         if child_models:

From b6cac5eeaa6c32b47deed85d6b553fef2726c335 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Mon, 2 Sep 2024 07:56:27 +0200
Subject: [PATCH 11/15] Accept single instance in `exclude`

---
 polymorphic/admin/helpers.py | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/polymorphic/admin/helpers.py b/polymorphic/admin/helpers.py
index aa991613..5577983b 100644
--- a/polymorphic/admin/helpers.py
+++ b/polymorphic/admin/helpers.py
@@ -147,6 +147,13 @@ def get_inline_formsets(self, request, formsets, inline_instances, obj=None, *ar
 def get_leaf_subclasses(cls, exclude=None):
     "Get leaf subclasses of `cls` class"
 
+    if exclude is None:
+        exclude = ()
+
+    elif not isinstance(exclude, (list, tuple)):
+        # Accept single instance in `exclude`
+        exclude = (exclude,)
+
     result = []
 
     subclasses = cls.__subclasses__()
@@ -155,8 +162,7 @@ def get_leaf_subclasses(cls, exclude=None):
         for subclass in subclasses:
             result.extend(get_leaf_subclasses(subclass, exclude))
     elif not (
-        (hasattr(cls, '_meta') and cls._meta.abstract) or
-        (exclude and cls in exclude)
+        cls in exclude or (hasattr(cls, '_meta') and cls._meta.abstract)
     ):
         result.append(cls)
 

From 49be2ef12fe618e01ef2f445954e7bc671bd4029 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Mon, 2 Sep 2024 08:12:55 +0200
Subject: [PATCH 12/15] Added documentation

---
 polymorphic/admin/inlines.py     | 6 ++++++
 polymorphic/admin/parentadmin.py | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/polymorphic/admin/inlines.py b/polymorphic/admin/inlines.py
index c3f9298b..c46797d4 100644
--- a/polymorphic/admin/inlines.py
+++ b/polymorphic/admin/inlines.py
@@ -54,6 +54,12 @@ class PolymorphicInlineModelAdmin(InlineModelAdmin):
     #: Inlines for all model sub types that can be displayed in this inline.
     #: Each row is a :class:`PolymorphicInlineModelAdmin.Child`
     child_inlines = None
+
+    #: The models that should be excluded from the auto-discovered leaf
+    #: model sub types that can be displayed in this inline. This can be
+    #: a list of models or a single model. It's useful to exclude
+    #: non-abstract base models (abstract models are always excluded)
+    #: when they don't have defined any child models.
     exclude_children = None
 
     def __init__(self, parent_model, admin_site):
diff --git a/polymorphic/admin/parentadmin.py b/polymorphic/admin/parentadmin.py
index 8ac0d57c..0929efa7 100644
--- a/polymorphic/admin/parentadmin.py
+++ b/polymorphic/admin/parentadmin.py
@@ -51,6 +51,12 @@ class PolymorphicParentModelAdmin(admin.ModelAdmin):
 
     #: The child models that should be displayed
     child_models = None
+
+    #: The models that should be excluded from the auto-discovered child
+    #: leaf models that should be displayed. This can be a list of
+    #: models or a single model. It's useful to exclude non-abstract
+    #: base models (abstract models are always excluded) when they don't
+    #: have defined any child models.
     exclude_children = None
 
     #: Whether the list should be polymorphic too, leave to ``False`` to optimize

From 39f1d79043248e42872ea615798b58669afed8e1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Mon, 2 Sep 2024 08:25:36 +0200
Subject: [PATCH 13/15] Fix ruff formatting

---
 polymorphic/admin/helpers.py     | 4 +---
 polymorphic/admin/inlines.py     | 5 +----
 polymorphic/admin/parentadmin.py | 4 +---
 3 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/polymorphic/admin/helpers.py b/polymorphic/admin/helpers.py
index 5577983b..076e1818 100644
--- a/polymorphic/admin/helpers.py
+++ b/polymorphic/admin/helpers.py
@@ -161,9 +161,7 @@ def get_leaf_subclasses(cls, exclude=None):
     if subclasses:
         for subclass in subclasses:
             result.extend(get_leaf_subclasses(subclass, exclude))
-    elif not (
-        cls in exclude or (hasattr(cls, '_meta') and cls._meta.abstract)
-    ):
+    elif not (cls in exclude or (hasattr(cls, "_meta") and cls._meta.abstract)):
         result.append(cls)
 
     return result
diff --git a/polymorphic/admin/inlines.py b/polymorphic/admin/inlines.py
index c46797d4..42d6bc91 100644
--- a/polymorphic/admin/inlines.py
+++ b/polymorphic/admin/inlines.py
@@ -104,10 +104,7 @@ def get_child_inlines(self):
         child_inlines = tuple(
             inline
             for inline in child_inlines
-            if (
-                inline.model is not None and
-                issubclass(inline.model, self.model)
-            )
+            if (inline.model is not None and issubclass(inline.model, self.model))
         )
 
         if child_inlines:
diff --git a/polymorphic/admin/parentadmin.py b/polymorphic/admin/parentadmin.py
index 0929efa7..45238651 100644
--- a/polymorphic/admin/parentadmin.py
+++ b/polymorphic/admin/parentadmin.py
@@ -128,9 +128,7 @@ def get_child_models(self):
         if self.child_models is not None:
             return self.child_models
 
-        child_models = get_leaf_subclasses(
-            self.base_model, self.exclude_children
-        )
+        child_models = get_leaf_subclasses(self.base_model, self.exclude_children)
 
         if child_models:
             return child_models

From 515885d2fb44fbdd893077b903987b720b440bfd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Mon, 2 Sep 2024 08:28:33 +0200
Subject: [PATCH 14/15] Remove deprecated warning on `ruff` linting command

---
 pyproject.toml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pyproject.toml b/pyproject.toml
index 4706713b..a28a1ee5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,6 +8,7 @@ requires = [
 [tool.ruff]
 line-length = 99
 
+[tool.ruff.lint]
 extend-ignore = [
     "E501",
 ]
@@ -18,7 +19,7 @@ select = [
     "W",
 ]
 
-[tool.ruff.per-file-ignores]
+[tool.ruff.lint.per-file-ignores]
 "example/**" = [
     "F401",
     "F403",

From b56b3cdaffc44f0313b069b54903a76bfc8b9e5f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Legan=C3=A9s-Combarro=20=27piranna?=
 <piranna@gmail.com>
Date: Mon, 2 Sep 2024 08:42:33 +0200
Subject: [PATCH 15/15] =?UTF-8?q?Add=20`Jes=C3=BAs=20Legan=C3=A9s-Combarro?=
 =?UTF-8?q?`=20to=20`AUTHORS.rst`=20file?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 AUTHORS.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/AUTHORS.rst b/AUTHORS.rst
index 6cc53931..47dbf348 100644
--- a/AUTHORS.rst
+++ b/AUTHORS.rst
@@ -42,6 +42,7 @@ Contributors
 * Jacob Rief
 * James Murty
 * Jedediah Smith (proxy models support)
+* Jesús Leganés-Combarro (Auto-discover child models and inlines, #582)
 * John Furr
 * Jonas Haag
 * Jonas Obrist