OrientDB-NET - Update<T>()

This method allows you to update records as part of a transaction.

Updating Records

Using this method you can update records that already exist in the database as part of a transaction. This way you can evaluate the changes before committing them to the database.

Syntax

void trx.Update<T>(T typedObject)

• typedObject Defines the object you want to update.

Example

For instance, if you find yourself often updating records with complex information or changes made to multiple fields, you may find it useful to implement a helper function to simplify this process.

using Orient.Client;
using System;
...

// UPDATE RECORDS
public void updateRecord(OTransaction trx, Dictionary<ODocument, Dictionary<string, string>> records)
{
   // LOG OPERATION
   Console.WriteLine("Update Records");

   // LOOP OVER DOCUMENTS
   foreach(KeyValuePair<ODocument, Dictionary<string, string>> record in records)
   {
      // INITIALIZE VARIABLES
      ODocument document = record.Key;
      Dictionary<string, string> fields = record.Value;

      // SET CHANGES
      foreach(KeyValuePair<string, string> field in fields)
      {
          // SET FIELD
          document.SetField<string>(field.Key, field.Value);
      }

      // APPLY CHANGES TO TRANSACTION
      trx.Update<ODocument>(document);
   }
}