/// <summary>
/// Begins a grouping of statements with the provided logic type.
/// </summary>
public void BeginGroup(LogicTypes logicType)
{
var newGroup = new FilterBuilderGroup <TModel>(logicType, currentGroup);
currentGroup.Add(newGroup);
currentGroup = newGroup;
}
/// <summary>
/// Creates a new grouping of filter steps.
/// </summary>
/// <param name="logicType">Type of join logic to use.</param>
/// <param name="parent">Parent of this group.</param>
public FilterBuilderGroup(LogicTypes logicType, FilterBuilderGroup <TModel> parent)
{
if (logicType == LogicTypes.NOT)
{
throw new InvalidOperationException("Cannot group filters using 'not' logic.");
}
this.logicType = logicType;
this.parent = parent;
this.steps = new List <FilterBuilderStep <TModel> >();
}
public FilterExpressionBuilder(LogicTypes logicType = LogicTypes.AND)
{
currentGroup = new FilterBuilderGroup <TModel>(logicType, null);
parameter = Expression.Parameter(modelType, "model");
}
/// <summary>
/// Ends the innermost grouping of statements.
/// </summary>
public void EndGroup()
{
currentGroup = currentGroup.Parent;
}