Added the base account detail page that shows its descendant accounts.

src/accounting/base_account/__init__.py

@@ -27,6 +27,9 @@ def init_app(app: Flask, bp: Blueprint) -> None:
     :param app: The Flask application.
     :return: None.
     """
+    from .converters import BaseAccountConverter
+    app.url_map.converters["baseAccount"] = BaseAccountConverter
+
     from .views import bp as base_account_bp
     bp.register_blueprint(base_account_bp, url_prefix="/base-accounts")
 

src/accounting/base_account/converters.py

@@ -0,0 +1,48 @@
+# The Mia! Accounting Flask Project.
+# Author: imacat@mail.imacat.idv.tw (imacat), 2023/2/1
+
+#  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 path converters for the base account management.
+
+"""
+from flask import abort
+from werkzeug.routing import BaseConverter
+
+from accounting.database import db
+from accounting.models import BaseAccount
+
+
+class BaseAccountConverter(BaseConverter):
+    """The account converter to convert the account code and to the
+    corresponding base account in the routes."""
+
+    def to_python(self, value: str) -> BaseAccount:
+        """Converts an account code to a base account.
+
+        :param value: The account code.
+        :return: The corresponding base account.
+        """
+        account: BaseAccount | None = db.session.get(BaseAccount, value)
+        if account is None:
+            abort(404)
+        return account
+
+    def to_url(self, value: BaseAccount) -> str:
+        """Converts a base account to its code.
+
+        :param value: The base account.
+        :return: The code.
+        """
+        return value.code

src/accounting/base_account/views.py

@@ -39,3 +39,14 @@ def list_accounts() -> str:
     pagination: Pagination = Pagination[BaseAccount](accounts)
     return render_template("accounting/base-account/list.html",
                            list=pagination.list, pagination=pagination)
+
+
+@bp.get("/<baseAccount:account>", endpoint="detail")
+@has_permission(can_view)
+def show_account_detail(account: BaseAccount) -> str:
+    """Shows the account detail.
+
+    :return: The account detail.
+    """
+    return render_template("accounting/base-account/detail.html", obj=account)
+

src/accounting/models.py

@@ -42,6 +42,8 @@ class BaseAccount(db.Model):
     l10n = db.relationship("BaseAccountL10n", back_populates="account",
                            lazy=False)
     """The localized titles."""
+    accounts = db.relationship("Account", back_populates="base")
+    """The descendant accounts under the base account."""
 
     def __str__(self) -> str:
         """Returns the string representation of the base account.
@@ -91,7 +93,7 @@ class Account(db.Model):
                                                    ondelete="CASCADE"),
                           nullable=False)
     """The code of the base account."""
-    base = db.relationship(BaseAccount)
+    base = db.relationship(BaseAccount, back_populates="accounts")
     """The base account."""
     no = db.Column(db.Integer, nullable=False, default=text("1"))
     """The account number under the base account."""

src/accounting/templates/accounting/base-account/detail.html

@@ -0,0 +1,49 @@
+{#
+The Mia! Accounting Flask Project
+detail.html: The base account detail
+
+ 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.
+
+Author: imacat@mail.imacat.idv.tw (imacat)
+First written: 2023/2/1
+#}
+{% extends "accounting/base.html" %}
+
+{% block header %}{% block title %}{{ obj }}{% endblock %}{% endblock %}
+
+{% block content %}
+
+<div class="btn-group mb-3">
+  <a class="btn btn-primary" href="{{ url_for("accounting.account.list")|or_next }}">
+    <i class="fa-solid fa-circle-chevron-left"></i>
+    {{ A_("Back") }}
+  </a>
+</div>
+
+<div class="account col-sm-6">
+  <div class="account-title">{{ obj.title }}</div>
+  <div class="account-code">{{ obj.code }}</div>
+  {% if obj.accounts %}
+    <div>
+    {% for account in obj.accounts %}
+      <a class="btn btn-primary" href="{{ url_for("accounting.account.detail", account=account)|append_next }}">
+        {{ account }}
+      </a>
+    {% endfor %}
+    </div>
+  {% endif %}
+</div>
+
+{% endblock %}

src/accounting/templates/accounting/base-account/list.html

@@ -44,13 +44,13 @@ First written: 2023/1/26
 {% if list %}
   {% include "accounting/include/pagination.html" %}
 
-  <ul class="list-group">
-  {% for item in list %}
-    <li class="list-group-item list-group-item-action">
-      {{ item }}
-    </li>
-  {% endfor %}
-  </ul>
+  <div class="list-group">
+    {% for item in list %}
+      <a class="list-group-item list-group-item-action" href="{{ url_for("accounting.base-account.detail", account=item)|append_next }}">
+        {{ item }}
+      </a>
+    {% endfor %}
+  </div>
 {% else %}
   <p>{{ A_("There is no data.") }}</p>
 {% endif %}