regular exp updated on model

app/models/mh_dc_client_model.py

@@ -1,19 +1,12 @@
 from app import db
 from datetime import datetime
 from sqlalchemy import event
-import re
-
-# REGEX PATTERN
-D_RANGE_PATTERN = re.compile(r"^d_\d+(?:_\d+)?_to_\d+(?:_\d+)?$")
+from app.utils.regex_utils import RegularExpression
 
 class ManholeDomesticChamberClient(db.Model):
     __tablename__ = "mh_dc_client"
 
     id = db.Column(db.Integer, primary_key=True)
-    #  Foreign Key to Subcontractor table
-    # subcontractor_id = db.Column(db.Integer, db.ForeignKey("subcontractors.id"), nullable=False)
-    # Relationship for easy access (subcontractor.subcontractor_name)
-    # subcontractor = db.relationship("Subcontractor", backref="mh_dc_records")
 
     # Basic Fields
     RA_Bill_No=db.Column(db.String(500))
@@ -23,7 +16,6 @@ class ManholeDomesticChamberClient(db.Model):
     MH_IL_LEVEL = db.Column(db.Float, default=0)
     Depth_of_MH = db.Column(db.Float, default=0)
    
- 
     # Excavation categories 
     d_0_to_1_5 = db.Column(db.Float, default=0)
     d_1_5_to_2_0 = db.Column(db.Float, default=0)
@@ -49,27 +41,13 @@ class ManholeDomesticChamberClient(db.Model):
     def serialize(self):
         return {c.name: getattr(self, c.name) for c in self.__table__.columns}
 
-    
-    def sum_mh_dc_fields():
-        return [
-            "d_0_to_0_75", "d_0_76_to_1_05", "d_1_06_to_1_65",
-            "d_1_66_to_2_15", "d_2_16_to_2_65", "d_2_66_to_3_15",
-            "d_3_16_to_3_65", "d_3_66_to_4_15", "d_4_16_to_4_65",
-            "d_4_66_to_5_15", "d_5_16_to_5_65", "d_5_66_to_6_15",
-            "d_6_16_to_6_65", "d_6_66_to_7_15", "d_7_16_to_7_65",
-            "d_7_66_to_8_15", "d_8_16_to_8_65", "d_8_66_to_9_15",
-            "d_9_16_to_9_65" ]
-    
-# ===============================
+
 # AUTO TOTAL USING REGEX
-# ===============================
 def calculate_mh_dc_total(mapper, connection, target):
     total = 0
-
     for column in target.__table__.columns:
-        if D_RANGE_PATTERN.match(column.name):
+        if RegularExpression.D_RANGE_PATTERN.match(column.name):
             total += getattr(target, column.name) or 0
-
     target.Total = total