Перевод админки flask babel

babel.cfg

@@ -0,0 +1,2 @@
+[python: pyproger/**.py]
+[jinja2: pyproger/templates/**.html]

poetry.lock

@@ -19,6 +19,17 @@ typing-extensions = ">=4"
 [package.extras]
 tz = ["python-dateutil"]
 
+[[package]]
+name = "babel"
+version = "2.12.1"
+description = "Internationalization utilities"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "Babel-2.12.1-py3-none-any.whl", hash = "sha256:b4246fb7677d3b98f501a39d43396d3cafdc8eadb045f4a31be01863f655c610"},
+    {file = "Babel-2.12.1.tar.gz", hash = "sha256:cc2d99999cd01d44420ae725a21c9e3711b3aadc7976d6147f622d8581963455"},
+]
+
 [[package]]
 name = "blinker"
 version = "1.6.2"
@@ -130,6 +141,23 @@ wtforms = "*"
 aws = ["boto"]
 azure = ["azure-storage-blob"]
 
+[[package]]
+name = "flask-babel"
+version = "3.1.0"
+description = "Adds i18n/l10n support for Flask applications."
+optional = false
+python-versions = ">=3.7,<4.0"
+files = [
+    {file = "flask_babel-3.1.0-py3-none-any.whl", hash = "sha256:deb3ee272d5adf97f5974ed09ab501243d63e7fb4a047501a00de4bd4aca4830"},
+    {file = "flask_babel-3.1.0.tar.gz", hash = "sha256:be015772c5d7f046f3b99c508dcf618636eb93d21b713b356db79f3e79f69f39"},
+]
+
+[package.dependencies]
+Babel = ">=2.12"
+Flask = ">=2.0"
+Jinja2 = ">=3.1"
+pytz = ">=2022.7"
+
 [[package]]
 name = "flask-ckeditor"
 version = "0.4.6"
@@ -538,6 +566,17 @@ files = [
     {file = "psycopg2-2.9.7.tar.gz", hash = "sha256:f00cc35bd7119f1fed17b85bd1007855194dde2cbd8de01ab8ebb17487440ad8"},
 ]
 
+[[package]]
+name = "pytz"
+version = "2023.3.post1"
+description = "World timezone definitions, modern and historical"
+optional = false
+python-versions = "*"
+files = [
+    {file = "pytz-2023.3.post1-py2.py3-none-any.whl", hash = "sha256:ce42d816b81b68506614c11e8937d3aa9e41007ceb50bfdcb0749b921bf646c7"},
+    {file = "pytz-2023.3.post1.tar.gz", hash = "sha256:7b4fddbeb94a1eba4b557da24f19fdf9db575192544270a9101d8509f9f43d7b"},
+]
+
 [[package]]
 name = "sqlalchemy"
 version = "2.0.20"
@@ -664,4 +703,4 @@ email = ["email-validator"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.11"
-content-hash = "478d9db5ee4ac55f1f1c92cac45605f713462b70072ca9125c6bb88fa15a98d0"
+content-hash = "63169951638948867f57f4680c69b6f55c929f9ab903261bfd1fa16ed7a5f2e2"

pyproger/app.py

@@ -16,6 +16,13 @@ def create_app(test_config=None):
     else:
         app.config.from_mapping(test_config)
 
+    from .translations import babel
+    from .translations import bp as bp_translate
+    from .translations import get_locale
+
+    babel.init_app(app, locale_selector=get_locale)
+    app.register_blueprint(bp_translate)
+
     db.init_app(app)
 
     ckeditor = CKEditor()
@@ -50,6 +57,12 @@ def create_app(test_config=None):
             get_url=url_for,
         )
 
+    @app.context_processor
+    def utility_processor():
+        return dict(
+            page_lang=get_locale(),
+        )
+
     @app.route("/ping")
     def hello():
         return render_template_string("pong")

pyproger/config.py

@@ -1,3 +1,5 @@
+import os
+
 FLASK_ADMIN_SWATCH = "slate"
 # Create secret key so we can use sessions
 # python3: secrets.token_urlsafe()
@@ -35,3 +37,7 @@ SECURITY_SEND_REGISTER_EMAIL = False
 SECURITY_SEND_PASSWORD_CHANGE_EMAIL = False
 SECURITY_SEND_PASSWORD_RESET_EMAIL = False
 SECURITY_SEND_PASSWORD_RESET_NOTICE_EMAIL = False
+
+# Flask-Babel
+LANGUAGES = ["ru"]
+BABEL_TRANSLATION_DIRECTORIES = os.path.join(os.path.curdir, "translations")

pyproger/translations/__init__.py

@@ -0,0 +1 @@
+from .translation import babel, bp, get_locale

pyproger/translations/ru_RU/LC_MESSAGES/messages.po

@@ -0,0 +1,51 @@
+# Russian translations for PROJECT.
+# Copyright (C) 2023 ORGANIZATION
+# This file is distributed under the same license as the PROJECT project.
+# FIRST AUTHOR <EMAIL@ADDRESS>, 2023.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: PROJECT VERSION\n"
+"Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
+"POT-Creation-Date: 2023-07-03 23:52+0300\n"
+"PO-Revision-Date: 2023-07-02 22:55+0300\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language: ru\n"
+"Language-Team: ru <LL@li.org>\n"
+"Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && "
+"n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=utf-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Generated-By: Babel 2.12.1\n"
+
+#: pi3code/admin/views.py:64
+msgid "Tags"
+msgstr "Тэги"
+
+#: pi3code/admin/views.py:65
+msgid "Title"
+msgstr "Заголовок"
+
+#: pi3code/admin/views.py:66
+msgid "Author"
+msgstr "Автор"
+
+#: pi3code/admin/views.py:67
+msgid "Published"
+msgstr "Опубликован"
+
+#: pi3code/admin/views.py:68
+msgid "Publication day"
+msgstr "Дата публикации"
+
+#: pi3code/templates/admin/index.html:29
+msgid "Back"
+msgstr "Назад"
+
+#~ msgid "Name"
+#~ msgstr "тема"
+
+#~ msgid "\"\"Translation and localization commands.\"\""
+#~ msgstr "\"\"Команды для перевода и локализации\"\""
+

pyproger/translations/translation.py

@@ -0,0 +1,35 @@
+import os
+
+from flask import Blueprint, request
+from flask_babel import Babel
+
+
+def get_locale():
+    translations = ["en", "ru"]
+    return request.accept_languages.best_match(translations)
+
+
+babel = Babel()
+
+bp = Blueprint(
+    "bp_translation",
+    __name__,
+    cli_group="translate",
+)
+
+
+@bp.cli.command("update")
+def update():
+    """Update all languages."""
+    if os.system("pybabel extract -F babel.cfg -k _l -o messages.pot ."):
+        raise RuntimeError("extract command failed")
+    if os.system("pybabel update -i messages.pot -d pi3code/translations"):
+        raise RuntimeError("update command failed")
+    os.remove("messages.pot")
+
+
+@bp.cli.command("compile")
+def compile():
+    """Compile all languages."""
+    if os.system("pybabel compile -d pi3code/translations"):
+        raise RuntimeError("compile command failed")

pyproject.toml

@@ -17,6 +17,7 @@ flask-admin = "^1.6.1"
 psycopg2 = "^2.9.7"
 click = "^8.1.7"
 flask-ckeditor = "^0.4.6"
+flask-babel = "^3.1.0"
 
 
 [build-system]