protected override async ValueTask <IQsiAnalysisResult> ExecuteDataDeleteAction(IAnalyzerContext context, IQsiDataDeleteActionNode action)
{
var tableAnalyzer = context.Engine.GetAnalyzer <QsiTableAnalyzer>();
using var tableContext = new TableCompileContext(context);
var table = (await tableAnalyzer.BuildTableStructure(tableContext, action.Target)).References[0];
var tempTable = CreateTemporaryTable(table.Identifier);
var commonTableNode = ReassembleCommonTableNode(action.Target);
var dataTable = await GetDataTableByCommonTableNode(context, commonTableNode);
var deleteRows = new QsiDataRowCollection(1);
foreach (var row in dataTable.Rows)
{
var targetRow = deleteRows.NewRow();
targetRow.Items[0] = row.Items[0];
}
var dataAction = new QsiDataAction
{
Table = tempTable,
DeleteRows = deleteRows.ToNullIfEmpty()
};
return((new[] { dataAction }).ToResult());
}
public static QsiDataRowCollection ToNullIfEmpty(this QsiDataRowCollection collection)
{
if (collection is null || collection.Count == 0)
{
return(null);
}
return(collection);
}
protected override async ValueTask <IQsiAnalysisResult> ExecuteDataUpdateAction(IAnalyzerContext context, IQsiDataUpdateActionNode action)
{
var tableAnalyzer = context.Engine.GetAnalyzer <QsiTableAnalyzer>();
using var tableContext = new TableCompileContext(context);
var table = (await tableAnalyzer.BuildTableStructure(tableContext, action.Target)).References[0];
var tempTable = CreateTemporaryTable(table.Identifier);
var commonTableNode = ReassembleCommonTableNode(action.Target);
var dataTable = await GetDataTableByCommonTableNode(context, commonTableNode);
var updateBeforeRows = new QsiDataRowCollection(1);
var updateAfterRows = new QsiDataRowCollection(1);
(object[], QsiExpressionNode, bool)[] setValues = action.SetValues
