app/api/routes/routes.py

@@ -167,6 +167,7 @@ def get_all_loan_charges():
     # Extract query parameters for filtering
     filters = {
         'loan_id': request.args.get('loan_id'),
+        'transaction_id': request.args.get('transaction_id'),
         'code': request.args.get('code'),
         'start_date': request.args.get('start_date'),
         'end_date': request.args.get('end_date'),

app/api/services/loan_charge_service.py

@@ -28,6 +28,7 @@ class LoanChargeService:
 
             # Extract filters
             loan_id = filters.get('loan_id')
+            transaction_id = filters.get('transaction_id')
             code = filters.get('code')
             start_date = filters.get('start_date')
             end_date = filters.get('end_date')
@@ -57,6 +58,7 @@ class LoanChargeService:
             # Get loan charges with optional filters and pagination
             loan_charges, total_count = LoanCharge.get_all_loan_charges(
                 loan_id=loan_id,
+                transaction_id=transaction_id,
                 code=code,
                 start_date=start_date,
                 end_date=end_date,

app/models/loan_charge.py

@@ -18,13 +18,14 @@ class LoanCharge(db.Model):
     due_date = db.Column(db.DateTime)
 
     @classmethod
-    def get_all_loan_charges(cls, loan_id=None, code=None, start_date=None, end_date=None,
+    def get_all_loan_charges(cls, loan_id=None, transaction_id=None, code=None, start_date=None, end_date=None,
                             due_before=None, due_after=None, page=1, limit=20):
         """
         Get all loan charges with optional filtering
 
         Args:
             loan_id (int, optional): Filter by loan ID
+            transaction_id (int, optional): Filter by transaction ID
             code (str, optional): Filter by charge code
             start_date (datetime, optional): Filter by start date (created_at)
             end_date (datetime, optional): Filter by end date (created_at)
@@ -42,6 +43,9 @@ class LoanCharge(db.Model):
         if loan_id:
             query = query.filter(cls.loan_id == loan_id)
 
+        if transaction_id:
+            query = query.filter(cls.transaction_id == transaction_id)
+
         if code:
             query = query.filter(cls.code == code)
 

app/swagger/paths/LoanCharges.json

@@ -15,6 +15,16 @@
         },
         "example": 7463
       },
+      {
+        "name": "transaction_id",
+        "in": "query",
+        "description": "Filter by transaction ID",
+        "required": false,
+        "schema": {
+          "type": "string"
+        },
+        "example": "TRX789"
+      },
       {
         "name": "code",
         "in": "query",

app/swagger/schemas/LoanChargesResponse.json

@@ -32,10 +32,6 @@
             "type": "integer",
             "example": 0
           },
-          "transaction_  {
-            "type": "integer",
-            "example": 0
-          },
           "transaction_id": {
             "type": "string",
             "example": "TRX123456",