Done crud operations in Add location part

lib/EAnalyzer/AddLocation.dart

@@ -38,7 +38,7 @@ getDate(date){
 getTime(time){
   this.time= time;
 }
-
+//---------------------------------------------Create Data-----------------------------------------------------
 createData(){
   print("object");
 
@@ -59,6 +59,9 @@ createData(){
 
 }
 
+//---------------------------------------------Read Data-----------------------------------------------------
+
+
 readData(){
   DocumentReference documentReference = Firestore.instance.collection("RiskLocation").document(userName);
 
@@ -72,6 +75,36 @@ readData(){
   });
 }
 
+//---------------------------------------------Update Data-----------------------------------------------------
+
+updateData(){
+  print("object");
+
+  DocumentReference documentReference = Firestore.instance.collection("RiskLocation").document(userName);
+
+  Map<String, dynamic> locations ={
+    "userName": userName,
+    "phoneNumber": phoneNumber,
+    "riskLocation": riskLocation,
+    "hotelName": hotelName,
+    "date": date,
+    "time": time
+  };
+
+  documentReference.setData(locations).whenComplete(() {
+    print("$userName Updated");
+  });
+}
+
+//---------------------------------------------Delete Data-----------------------------------------------------
+
+deleteData(){
+  DocumentReference documentReference = Firestore.instance.collection("RiskLocation").document(userName);
+  documentReference.delete().whenComplete((){
+    print("$userName Deleted");
+  });
+}
+
 final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
 //---------------------------------------------User Name-----------------------------------------------------
 Widget _buildName(){
@@ -210,33 +243,60 @@ Widget _buildTime(){
 
            SizedBox(height: 100),
            RaisedButton(
+             color: Colors.green,
              child: Text(
                'Submit',
-               style: TextStyle(color: Colors.green, fontSize: 18),
+               style: TextStyle(color: Colors.white, fontSize: 18),
                ),
              onPressed: () {
                if(!_formKey.currentState.validate()) {
                  return;
                }
 
-              //  _formKey.currentState.save();
+              createData();
+              
 
-              //  print(_fName);
-              //  print(_lName);
-              //  print(_age);
-              //  print(_address);
-              //  print(_nic);
-              //  print(_phoneNumber);
-              //  print(_riskLocation);
-              //  print(_hotelName);
-              //  print(_date);
-              //  print(_time);
+             } ,
+             ),
 
-              createData();
+            RaisedButton(
+            color: Colors.blue,
+             child: Text(
+               'View',
+               style: TextStyle(color: Colors.white, fontSize: 18),
+               ),
+             onPressed: () {
 
+              readData();
 
              } ,
-             )
+             ),
+
+            RaisedButton(
+            color: Colors.yellowAccent[700],
+             child: Text(
+               'Update',
+               style: TextStyle(color: Colors.white, fontSize: 18),
+               ),
+             onPressed: () {
+
+              updateData();
+
+             } ,
+             ),
+
+             RaisedButton(
+            color: Colors.red,
+             child: Text(
+               'Delete',
+               style: TextStyle(color: Colors.white, fontSize: 18),
+               ),
+             onPressed: () {
+
+              deleteData();
+
+             } ,
+             ),