public override TSqlQuery Compile(ClauseCompilationContext context)
{
Dictionary <string, object> parameters = new Dictionary <string, object>();
StringBuilder sb = new StringBuilder();
foreach (UpdateClauseItem item in UpdateItems)
{
if (sb.Length > 0)
{
sb.Append(TSqlSyntax.FieldsDelimeter);
}
string fieldName = SqlBuilderHelper.PrepareFieldName(TableName, item.FieldName);
string assignmentOperatorString = SqlBuilderHelper.ConvertAssignmentOperatorToString(item.AssignmentOperator);
string valueString;
if (item.Value is TSqlStatement tsqlStatement)
{
valueString = tsqlStatement.GetDescription();
}
else
{
string parameterName = SqlBuilderHelper.ComposeParameterName(TableName, item.FieldName, context);
context.ParameterNames.Add(parameterName);
parameters.Add(parameterName, item.Value);
valueString = SqlBuilderHelper.PrepareParameterName(parameterName);
}
sb.AppendLine($"{fieldName} {assignmentOperatorString} {valueString}");
}
return(new TSqlQuery(
$"{TSqlSyntax.Update} {SqlBuilderHelper.PrepareTableName(TableName)} {TSqlSyntax.Set} {sb}",
parameters
));
}