frontpage: fix patron profile link translation

* Fixes the translation of the patron profile link in menu by loading the menu at each app
request, not only the first time.
* Closes #1283.

Co-Authored-by: Alicia Zangger <[email protected]>

rero_ils/modules/patrons/views.py

@@ -19,17 +19,20 @@
 
 from __future__ import absolute_import, print_function
 
+import inspect
 import re
 from functools import wraps
+from werkzeug.local import LocalProxy
 
 from elasticsearch_dsl import Q
 from flask import Blueprint, abort, current_app, flash, jsonify, \
     render_template, request, url_for
 from flask_babelex import format_currency
 from flask_babelex import gettext as _
 from flask_login import current_user, login_required
-from flask_menu import register_menu
+from flask_menu import register_menu, Menu
 from invenio_i18n.ext import current_i18n
+from six import PY3
 from werkzeug.exceptions import NotFound
 from werkzeug.utils import redirect
 
@@ -71,6 +74,82 @@ def is_logged_librarian(*args, **kwargs):
     return is_logged_librarian
 
 
+def register_menu_before_app_request(app, path, text, order=0,
+                  endpoint_arguments_constructor=None,
+                  dynamic_list_constructor=None,
+                  active_when=None,
+                  visible_when=None,
+                  **kwargs):
+    """Decorate endpoints that should be displayed in a menu.
+
+    Example::
+        @register_menu(app, '.', _('Home'))
+        def index():
+            pass
+    :param app: Application or Blueprint which owns the
+        function view.
+    :param path: Path to this item in menu hierarchy,
+        for example 'main.category.item'. Path can be an object
+        with custom __str__ method: it will be converted on first request,
+        therefore you can use current_app inside this __str__ method.
+    :param text: Text displayed as link.
+    :param order: Index of item among other items in the same menu.
+    :param endpoint_arguments_constructor: Function returning dict of
+        arguments passed to url_for when creating the link.
+    :param active_when: Function returning True when the item
+        should be displayed as active.
+    :param visible_when: Function returning True when this item
+        should be displayed.
+    :param dynamic_list_constructor: Function returning a list of
+        entries to be displayed by this item. Every object should
+        have 'text' and 'url' properties/dict elements. This property
+        will not be directly affect the menu system, but allows
+        other systems to use it while rendering.
+    :param kwargs: Additional arguments will be available as attributes
+        on registered :class:`MenuEntryMixin` instance.
+    .. versionchanged:: 0.2.0
+       The *kwargs* arguments.
+    """
+    def menu_decorator(f):
+        """Decorator of a view function that should be included in the menu."""
+        if isinstance(app, Blueprint):
+            endpoint = app.name + '.' + f.__name__
+            before_first_request = app.before_app_first_request
+        else:
+            endpoint = f.__name__
+            before_first_request = app.before_first_request
+
+        expected = inspect.getfullargspec(f).args if PY3 else \
+            inspect.getargspec(f).args
+
+        @blueprint.before_app_request
+        def _register_menu_item():
+            # str(path) allows path to be a string-convertible object
+            # that may be useful for delayed evaluation of path
+            item = current_menu.submenu(str(path))
+            # Check which option in kwargs already exists in `item`.
+            to_delete = []
+            for option in kwargs.keys():
+                if hasattr(item, option):
+                    to_delete.append(option)
+            # Delete all existing options in kwargs
+            for element in to_delete:
+                del kwargs[element]
+            item.register(
+                endpoint,
+                text,
+                order,
+                endpoint_arguments_constructor=endpoint_arguments_constructor,
+                dynamic_list_constructor=dynamic_list_constructor,
+                active_when=active_when,
+                visible_when=visible_when,
+                expected_args=expected,
+                **kwargs)
+        return f
+
+    return menu_decorator
+
+
 @api_blueprint.route('/count/', methods=['GET'])
 @check_permission
 def number_of_patrons():
@@ -163,7 +242,7 @@ def logged_user():
                  methods=['GET', 'POST'])
 @blueprint.route('/<string:viewcode>/patrons/profile')
 @login_required
-@register_menu(
+@register_menu_before_app_request(
     blueprint,
     'main.profile.patron_profile',
     _('%(icon)s Profile', icon='<i class="fa fa-book fa-fw"></i>'),
@@ -299,3 +378,7 @@ def get_patron_from_pid(patron_pid):
 def get_location_name_from_pid(location_pid):
     """Get location from pid."""
     return Location.get_record_by_pid(location_pid)['name']
+
+
+#: Global object that is proxy to the current application menu.
+current_menu = LocalProxy(Menu.root)