Added the option management, and moved the configuration of the default currency, the default account for the income and expenses log, and the recurring expenses and incomes to the options.

src/accounting/option/views.py

@@ -0,0 +1,69 @@
+# The Mia! Accounting Flask Project.
+# Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/22
+
+#  Copyright (c) 2023 imacat.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+"""The views for the option management.
+
+"""
+from urllib.parse import parse_qsl
+
+from flask import Blueprint, render_template, redirect, session, request, \
+    flash, url_for
+from werkzeug.datastructures import ImmutableMultiDict
+
+from accounting import db
+from accounting.locale import lazy_gettext
+from accounting.option.forms import OptionForm
+from accounting.option.options import Options, options
+from accounting.utils.cast import s
+from accounting.utils.next_uri import inherit_next
+from accounting.utils.permission import has_permission, can_admin
+
+bp: Blueprint = Blueprint("option", __name__)
+"""The view blueprint for the currency management."""
+
+
+@bp.get("", endpoint="form")
+@has_permission(can_admin)
+def show_option_form() -> str:
+    """Shows the option form.
+
+    :return: The option form.
+    """
+    form: OptionForm
+    if "form" in session:
+        form = OptionForm(ImmutableMultiDict(parse_qsl(session["form"])))
+        del session["form"]
+        form.validate()
+    else:
+        form = OptionForm(obj=options)
+    return render_template("accounting/option/form.html", form=form)
+
+
+@bp.post("", endpoint="update")
+@has_permission(can_admin)
+def update_options() -> redirect:
+    """Updates the options.
+
+    :return: The redirection to the option form.
+    """
+    form = OptionForm(request.form)
+    form.populate_obj(options)
+    if not options.is_modified:
+        flash(s(lazy_gettext("The options were not modified.")), "success")
+        return redirect(inherit_next(url_for("accounting.option.form")))
+    options.commit()
+    flash(s(lazy_gettext("The options are saved successfully.")), "success")
+    return redirect(inherit_next(url_for("accounting.option.form")))