babel configured but not working

dbrepo-ui-new/app/__init__.py

-from flask import Flask
+from flask import Flask, session, request, redirect, url_for, current_app
 from .records_ui import records_bp
 from flask_assets import Environment, Bundle
+from flask_babel import Babel, gettext as _, get_locale
 import os
 
 
@@ -8,6 +9,13 @@ import os
 def create_app():
     app = Flask(__name__)
     app.config.from_pyfile("config.py")
+    def get_locale():
+        return 'de'
+    babel = Babel(app, locale_selector=get_locale)
+
+    app.secret_key = 'super secret key'
+    base_dir = os.path.abspath(os.path.dirname(__file__))
+    app.config["BABEL_TRANSLATION_DIRECTORIES"] = os.path.abspath(os.path.join(base_dir, "..", "translations"))
 
     assets = Environment(app)
 
@@ -22,4 +30,18 @@ def create_app():
 
     app.register_blueprint(records_bp)
 
+
+
+    @app.route('/debug-locale')
+    def debug_locale():
+        return f"Current locale: {get_locale()}"
+
+    @app.route("/test-translation")
+    def test_translation():
+        translations_dir = current_app.config.get("BABEL_TRANSLATION_DIRECTORIES", "translations")
+        print(translations_dir)
+        print(get_locale())
+
+        return _("test")
+
     return app
\ No newline at end of file

dbrepo-ui-new/app/config.py

+BABEL_DEFAULT_LOCALE = 'en'
+
 DETAIL_SIDE_BAR_TEMPLATES = [
   "/records/details/side_bar/identifiers.html",
   "/records/details/side_bar/identifier.html",

dbrepo-ui-new/app/records_ui/__init__.py

@@ -2,6 +2,8 @@ import json
 
 from flask import Flask, render_template, Blueprint, request, jsonify
 import dbrepo.RestClient
+from flask_babel import Babel, gettext as _, get_locale
+
 
 repo = dbrepo.RestClient.RestClient(endpoint='https://dbrepo1.ec.tuwien.ac.at')
 
@@ -15,7 +17,7 @@ def show_record(db_id):
     view = repo.get_view(database_id=db_id, view_id=database.views[0].id)
     view_data = repo.get_view_data(database_id=db_id, view_id=database.views[0].id).to_dict(orient='records')
     queries = repo.get_queries(database_id=db_id)
-    print(view_data)
+    print(get_locale())
     return render_template('records/detail.html', database=database, view=view, data=view_data,
                            doi_id=0, queries=queries)
 

dbrepo-ui-new/app/records_ui/templates/records/detail.html

@@ -10,13 +10,13 @@
 
 
         <div class="left-section">
-            <div id="static-header">Created {{ database.identifiers[doi_id].publication_day }}.{{ database.identifiers[doi_id].publication_month }}.{{ database.identifiers[doi_id].publication_year }}
+            <div id="static-header">{{ _('Created') }} {{ database.identifiers[doi_id].publication_day }}.{{ database.identifiers[doi_id].publication_month }}.{{ database.identifiers[doi_id].publication_year }}
                 <div id="access"><i class="lock open icon"></i>Open</div>
             </div>
             <h1>{{ database.name }}</h1>
             <a id="creator">{{ creators_list(database.identifiers[0].creators)}}</a>
             <p style="white-space: pre-line;">{{ database.identifiers[0].descriptions[0].description }}</p>
-            <h2>Data</h2>
+            <h2>{{ _('Data') }}</h2>
             {{ preview_info_box(view, data) }}
             {{ datasource_list_box(database.views) }}
             {{ dataset_list_box(queries) }}

dbrepo-ui-new/babel.cfg

+[python: **.py]
+[jinja2: **/templates/**.html]