feat: 统计页

src/budget/_stat.py

@@ -1,7 +1,9 @@
 from PyQt6.QtWidgets import *
+from PyQt6.QtCharts import *
 from ._tab import TabPage
 from ._pg import PostgresTab
 from PyQt6.QtGui import QDoubleValidator
+import datetime
 import json
 
 class StatTab(TabPage):
@@ -9,10 +11,73 @@ class StatTab(TabPage):
         super().__init__()
         self.initUI()
         self.pg = parent.pg
-        self.rows = []
 
     def initUI(self):
+        # 按钮
+        self.outButton = QPushButton('Expense')
+        self.inButton = QPushButton('Income')
+        buttonLayout = QHBoxLayout()
+        buttonLayout.addWidget(self.outButton)
+        buttonLayout.addWidget(self.inButton)
+
+        # 饼状图
+        self.chart = QChart()
+        self.chart.setTitle('Month Statistics')
+        self.chart.setAnimationOptions(QChart.AnimationOption.SeriesAnimations)
+        chartLayout = QVBoxLayout()
+        chartLayout.addWidget(QChartView(self.chart))
+
+        leftLayout = QVBoxLayout()
+        leftLayout.addLayout(buttonLayout)
+        leftLayout.addLayout(chartLayout)
+
+        # 日历控件
+        self.calendar = QCalendarWidget()
+        self.calendar.setGridVisible(True)
+        # 日历点击事件
+        self.calendar.clicked.connect(self.onCalendarClicked)
+        # 切换月份事件
+        self.calendar.currentPageChanged.connect(self.onCalendarPageChanged)
+
+        calenderLayout = QHBoxLayout()
+        calenderLayout.addWidget(self.calendar)
+
+        statLayout = QHBoxLayout()
+        statLayout.addLayout(leftLayout)
+        statLayout.addLayout(calenderLayout)
+        self.setLayout(statLayout)
+
+
+
+    def onCalendarClicked(self, date):
         pass
 
-    def onXXXClicked(self):
-        pass
+
+    def onCalendarPageChanged(self, year, month):
+        print(year, month)
+
+        # 合计分类的交易量
+        self.pg.execute("SELECT c_id, sum(amount)::numeric::float8 FROM transaction WHERE c_id IS NOT NULL and \
+             time BETWEEN %s AND %s GROUP BY c_id ORDER BY c_id", \
+            (datetime.date(year, month, 1), datetime.date(year, month+1, 1),))
+        self.statData = self.pg.fetchall()
+        print(self.statData)
+
+        # 获取此月所有交易类别
+        self.pg.execute("SELECT c_id, meta->>'name' FROM category \
+        WHERE c_id in (SELECT c_id FROM transaction WHERE time between %s and %s GROUP BY c_id) \
+        ORDER BY c_id", \
+                        (datetime.date(year, month, 1), datetime.date(year, month+1, 1),))
+        self.categoryData = self.pg.fetchall()
+        print(self.categoryData)
+
+        # 填充饼状图
+        self.chart.removeAllSeries()
+        series = QPieSeries()
+        for i in range(len(self.statData)):
+            series.append(self.categoryData[i][1], self.statData[i][1])
+        self.chart.addSeries(series)  
+
+    def selected(self):
+        # 刷新图表
+        self.onCalendarPageChanged(self.calendar.yearShown(), self.calendar.monthShown())