Added simple views for the accounting cash report.

accounting/utils.py

@@ -0,0 +1,40 @@
+# The accounting application of the Mia project.
+#   by imacat <imacat@mail.imacat.idv.tw>, 2020/6/30
+
+#  Copyright (c) 2020 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 utilities of the accounting application.
+
+"""
+
+
+class PeriodParser:
+    """The period parser.
+
+    Attributes:
+        start: The start of the period.
+        end: The end of the period.
+    """
+    start = None
+    end = None
+
+    def __init__(self, period_spec):
+        """Constructs a new period parser.
+
+        Args:
+            period_spec (str): The period specification.
+        """
+        self.start = period_spec + "-01"
+        self.end = period_spec + "-30"