django_dumpdata, django_loaddata: new modules (#10726)

* django module, module_utils: adjustments

* more fixes

* more fixes

* further simplification

* django_dumpdata/django_loaddata: new modules

* Update plugins/modules/django_dumpdata.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* add note about idempotency

---------

Co-authored-by: Felix Fontein <felix@fontein.de>

plugins/modules/django_loaddata.py

@@ -0,0 +1,92 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+# Copyright (c) 2025, Alexei Znamensky <russoz@gmail.com>
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+DOCUMENTATION = r"""
+module: django_loaddata
+author:
+  - Alexei Znamensky (@russoz)
+short_description: Wrapper for C(django-admin loaddata)
+version_added: 11.3.0
+description:
+  - This module is a wrapper for the execution of C(django-admin loaddata).
+extends_documentation_fragment:
+  - community.general.attributes
+  - community.general.django
+  - community.general.django.database
+  - community.general.django.data
+attributes:
+  check_mode:
+    support: none
+  diff_mode:
+    support: none
+options:
+  app:
+    description: Specifies a single app to look for fixtures in rather than looking in all apps.
+    type: str
+  ignore_non_existent:
+    description: Ignores fields and models that may have been removed since the fixture was originally generated.
+    type: bool
+  fixtures:
+    description:
+      - List of paths to the fixture files.
+    type: list
+    elements: path
+"""
+
+EXAMPLES = r"""
+- name: Dump all data
+  community.general.django_dumpdata:
+    settings: myproject.settings
+
+- name: Create cache table in the other database
+  community.general.django_createcachetable:
+    database: myotherdb
+    settings: fancysite.settings
+    pythonpath: /home/joedoe/project/fancysite
+    venv: /home/joedoe/project/fancysite/venv
+"""
+
+RETURN = r"""
+run_info:
+  description: Command-line execution information.
+  type: dict
+  returned: success and O(verbosity) >= 3
+version:
+  description: Version of Django.
+  type: str
+  returned: always
+  sample: 5.1.2
+"""
+
+from ansible_collections.community.general.plugins.module_utils.django import DjangoModuleHelper
+
+
+class DjangoLoadData(DjangoModuleHelper):
+    module = dict(
+        argument_spec=dict(
+            app=dict(type="str"),
+            ignore_non_existent=dict(type="bool"),
+            fixtures=dict(type="list", elements="path"),
+        ),
+        supports_check_mode=False,
+    )
+    django_admin_cmd = "loaddata"
+    django_admin_arg_order = "database_dash ignore_non_existent app format excludes fixtures"
+    _django_args = ["data", "database_dash"]
+
+    def __init_module__(self):
+        self.vars.set("database_dash", self.vars.database, output=False)
+
+
+def main():
+    DjangoLoadData.execute()
+
+
+if __name__ == '__main__':
+    main()