comaparison code optimization and cal sum/total mh dc and laying

app/services/dashboard_service.py

@@ -0,0 +1,49 @@
+from app.config import Config
+from app import db
+import matplotlib
+matplotlib.use("Agg")
+from app.routes.dashboard import plot_to_base64
+import matplotlib.pyplot as plt
+import io
+import base64
+
+from app.utils.plot_utils import plot_to_base64
+
+# Subcontractor models import
+from app.models.trench_excavation_model import TrenchExcavation
+
+# Client models import
+# from app.models.tr_ex_client_model import TrenchExcavationClient
+
+
+class DashboardService:
+
+
+    # bar chart
+    def bar_chart_of_tr_ex():
+        categories = ["Soft Murum", "Hard Murum", "Soft Rock", "Hard Rock"]
+        values = [120, 80, 150, 60]
+
+        tr = TrenchExcavation()
+
+        record = TrenchExcavation.query.first()
+        print(" RA_Bill_No::",record["RA_Bill_No"])
+
+        totals = tr.excavation_category_sums()
+
+        # print(totals["Soft_Murum_Total"])
+        # print(totals["Hard_Rock_Total"])
+
+
+        plt.figure()
+        plt.bar(categories, values)
+        plt.title("Trench Excavation Work Category Report")
+        plt.xlabel("Excavation category")
+        plt.ylabel("Quantity")
+
+        return plot_to_base64(plt)
+
+
+    def subcontractor_dash():
+            return True
+