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I am trying to edit the value of "shopB" in my database. I am doing so inside of a view holder, by use of a dialog box with an edit text field and an approve button. When a user clicks on a specific transaction, they're given a dialog box where they enter the value for shopB and then click Approve.

I am struggling to do this as I cannot access that value because of the uniquely generated key that firebase has. I have many posts with similar problems to mine but as I am doing this inside of a view holder I do not see how I can use DataSnapshot. Any help would be greatly appreciated as I am getting very lost.

Database Structure:

viewHolder.setItemClickListener(new ItemClickListener() 
 @Override
 public void onClick(android.view.View view, int position, boolean isLongClick) 
 Toast.makeText(Request.this, "Receiving: " + shopA, Toast.LENGTH_SHORT).show();
 ThisDialog = new Dialog(Request.this);
 ThisDialog.setContentView(R.layout.dialog_template);
 final EditText Write = (EditText) ThisDialog.findViewById((R.id.write));
 Button Approve = (Button) ThisDialog.findViewById(R.id.approve);

 Write.setEnabled(true);
 Approve.setEnabled(true);

 Approve.setOnClickListener(new View.OnClickListener() 
 @Override
 public void onClick(View v) 
 String newShopB = Write.getText().toString().replace(".", " ");
 transaction.child("key").child("shopB").setValue(newShopB);
 Toast.makeText(Request.this, "CustB Approval", Toast.LENGTH_SHORT).show();
 ThisDialog.cancel();
 
 );
 ThisDialog.show();
 
 );

This would be my code but obviously where I have "transaction.child("key")" does not find the key.

Oh and transaction is defined earlier in my code as

database = FirebaseDatabase.getInstance();
start = database.getReference("Transaction");
transaction = start.child(passedEmail);

Here's a possible solution to workaround on your project:

start.addListenerForSingleValueEvent(new ValueEventListener() 
 @Override
 public void onDataChange(DataSnapshot dataSnapshot) 
 for (DataSnapshot child : dataSnapshot.child(key).getChildren()) 

 //insert additional codes here
 
 
 );