public void Update <T>(T instance)
{
var tableName = _conventionReader.GetTableName <T>();
var columnValues = _conventionReader.GetColumnValuesForInsertOrUpdate(instance);
var primaryKeyColumn = _conventionReader.GetPrimaryKeyColumnName <T>();
var primaryKeyValue = _conventionReader.GetPrimaryKeyValue(instance);
var constraintExpression = QueryExpression.Create(new EqualsExpression(primaryKeyColumn, primaryKeyValue));
var command = _sqlGenerator.CreateUpdateCommand(tableName, constraintExpression, columnValues);
_dbCommandExecutor.ExecuteNonQuery(command, ConnectionString);
}
private IEnumerable <TCommand> CreateInsertCommands <TEntity, TCommand>(IEnumerable <TEntity> entities, Func <string, IDictionary <string, object>, TCommand> f)
{
var commands = new List <TCommand>();
foreach (var entity in entities)
{
var columnValues = _conventionReader.GetColumnValuesForInsertOrUpdate(entity);
var tableName = _conventionReader.GetTableName <TEntity>();
var command = f(tableName, columnValues);
commands.Add(command);
}
return(commands);
}