Merge pull request #13 from Shreyanshi210205/detailscheck_Shreyanshi2…

…10205

feat: added the modifier in addPerson function

contract/Database.sol

@@ -7,23 +7,30 @@ contract Database{
         string name;
         string DOB;
         string phoneNo;
-
-    }
+        
+}
 
     mapping( uint256=> Details) public list;
-
+    mapping (string => bool) public added;
     uint256 public count=0;
     constructor()
     {
 
     }
-
-    function addPerson(string calldata aadharId,string calldata name, string calldata DOB, string calldata phoneNo) public 
+    modifier Added (string memory aadhar) 
+    {
+        require(!added[aadhar],"Details already added");
+        _;
+    }
+
+    function addPerson(string calldata aadharId,string calldata name, string calldata DOB, string calldata phoneNo ) public Added (aadharId)
     {
         Details memory person = Details({aadharId: aadharId,name: name,DOB: DOB,phoneNo: phoneNo});
         list[count]=person;
+        added[aadharId]=true;
         count++;
     }
+