public static void AddFilter(this FilterState filterState, string fieldName, object value, FilterOperator fieldOperator)
{
if (filterState.Filter == null)
{
filterState.Filter = new CompositeFilterDescriptor()
{
Logic = "and",
Filters = new List <dynamic>()
};
}
var found = SearchFilterDescriptors(filterState.Filter, fieldName).FirstOrDefault();
if (found != null)
{
throw new InvalidOperationException($"filter [${fieldName}] already exists");
}
var filterJson = new FilterDescriptor()
{
Field = fieldName,
Value = value,
Operator = fieldOperator.ToOperatorStr(),
}.ToJson();
filterState.Filter.Filters.Add(filterJson);
}
