Drop support for Django 2.2.

Author: hramezani

README.rst

@@ -45,7 +45,7 @@ In addition to the built-in panels, a number of third-party panels are
 contributed by the community.
 
 The current stable version of the Debug Toolbar is 3.2.4. It works on
-Django ≥ 2.2.
+Django ≥ 3.2.
 
 Documentation, including installation and configuration instructions, is
 available at https://django-debug-toolbar.readthedocs.io/.

docs/changes.rst

@@ -4,7 +4,7 @@ Change log
 Next version
 ------------
 
-* Removed support for Django 3.1.
+* Removed support for Django < 3.2.
 
 3.2.4 (2021-12-15)
 ------------------

setup.cfg

@@ -14,7 +14,6 @@ classifiers =
     Development Status :: 5 - Production/Stable
     Environment :: Web Environment
     Framework :: Django
-    Framework :: Django :: 2.2
     Framework :: Django :: 3.2
     Framework :: Django :: 4.0
     Intended Audience :: Developers
@@ -33,7 +32,7 @@ classifiers =
 [options]
 python_requires = >=3.6
 install_requires =
-    Django >= 2.2
+    Django >= 3.2
     sqlparse >= 0.2.0
 packages = find:
 include_package_data = true

tests/models.py

@@ -1,5 +1,6 @@
 from django.conf import settings
 from django.db import models
+from django.db.models import JSONField
 
 
 class NonAsciiRepr:
@@ -11,19 +12,8 @@ class Binary(models.Model):
     field = models.BinaryField()
 
 
-try:
-    from django.db.models import JSONField
-except ImportError:  # Django<3.1
-    try:
-        from django.contrib.postgres.fields import JSONField
-    except ImportError:  # psycopg2 not installed
-        JSONField = None
-
-
-if JSONField:
-
-    class PostgresJSON(models.Model):
-        field = JSONField()
+class PostgresJSON(models.Model):
+    field = JSONField()
 
 
 if settings.USE_GIS:

tests/panels/test_sql.py

@@ -15,16 +15,7 @@
 from debug_toolbar import settings as dt_settings
 
 from ..base import BaseTestCase
-
-try:
-    from psycopg2._json import Json as PostgresJson
-except ImportError:
-    PostgresJson = None
-
-if connection.vendor == "postgresql":
-    from ..models import PostgresJSON as PostgresJSONModel
-else:
-    PostgresJSONModel = None
+from ..models import PostgresJSON
 
 
 class SQLPanelTestCase(BaseTestCase):
@@ -160,7 +151,7 @@ def test_param_conversion(self):
     def test_json_param_conversion(self):
         self.assertEqual(len(self.panel._queries), 0)
 
-        list(PostgresJSONModel.objects.filter(field__contains={"foo": "bar"}))
+        list(PostgresJSON.objects.filter(field__contains={"foo": "bar"}))
 
         response = self.panel.process_request(self.request)
         self.panel.generate_stats(self.request, response)
@@ -171,11 +162,6 @@ def test_json_param_conversion(self):
             self.panel._queries[0][1]["params"],
             '["{\\"foo\\": \\"bar\\"}"]',
         )
-        if django.VERSION < (3, 1):
-            self.assertIsInstance(
-                self.panel._queries[0][1]["raw_params"][0],
-                PostgresJson,
-            )
 
     def test_binary_param_force_text(self):
         self.assertEqual(len(self.panel._queries), 0)

tests/test_forms.py

@@ -1,17 +1,11 @@
 from datetime import datetime
 
-import django
 from django import forms
 from django.test import TestCase
 
 from debug_toolbar.forms import SignedDataForm
 
-# Django 3.1 uses sha256 by default.
-SIGNATURE = (
-    "v02QBcJplEET6QXHNWejnRcmSENWlw6_RjxLTR7QG9g"
-    if django.VERSION >= (3, 1)
-    else "ukcAFUqYhUUnqT-LupnYoo-KvFg"
-)
+SIGNATURE = "v02QBcJplEET6QXHNWejnRcmSENWlw6_RjxLTR7QG9g"
 
 DATA = {"value": "foo", "date": datetime(2020, 1, 1)}
 SIGNED_DATA = f'{{"date": "2020-01-01 00:00:00", "value": "foo"}}:{SIGNATURE}'

tox.ini

@@ -2,13 +2,11 @@
 envlist =
     docs
     packaging
-    py{36,37}-dj{22,32}-{sqlite,postgresql,postgis,mysql}
-    py{38,39}-dj{22,32,40,main}-{sqlite,postgresql,postgis,mysql}
-    py{310}-dj{32,40,main}-{sqlite,postgresql,postgis,mysql}
+    py{36,37}-dj{32}-{sqlite,postgresql,postgis,mysql}
+    py{38,39,310}-dj{32,40,main}-{sqlite,postgresql,postgis,mysql}
 
 [testenv]
 deps =
-    dj22: django~=2.2.17
     dj32: django~=3.2.9
     dj40: django~=4.0.0
     sqlite: mock
@@ -42,25 +40,25 @@ whitelist_externals = make
 pip_pre = True
 commands = make coverage TEST_ARGS='{posargs:tests}'
 
-[testenv:py{36,37,38,39,310}-dj{22,32,40,main}-postgresql]
+[testenv:py{36,37,38,39,310}-dj{40,main}-postgresql]
 setenv =
     {[testenv]setenv}
     DB_BACKEND = postgresql
     DB_PORT = {env:DB_PORT:5432}
 
-[testenv:py{36,37,38,39,310}-dj{22,32,40,main}-postgis]
+[testenv:py{36,37,38,39,310}-dj{32,40,main}-postgis]
 setenv =
     {[testenv]setenv}
     DB_BACKEND = postgis
     DB_PORT = {env:DB_PORT:5432}
 
-[testenv:py{36,37,38,39,310}-dj{22,32,40,main}-mysql]
+[testenv:py{36,37,38,39,310}-dj{32,40,main}-mysql]
 setenv =
     {[testenv]setenv}
     DB_BACKEND = mysql
     DB_PORT = {env:DB_PORT:3306}
 
-[testenv:py{36,37,38,39,310}-dj{22,32,40,main}-sqlite]
+[testenv:py{36,37,38,39,310}-dj{32,40,main}-sqlite]
 setenv =
     {[testenv]setenv}
     DB_BACKEND = sqlite3