示例#1
0
		public static object Sum(ScriptThread thread, AstNode[] childNodes) {
			double sum =  0;
			var fieldName = childNodes[0].Evaluate(thread).ToString();
			
			var dataSource = thread.GetDataSource();
			
			var grouped = ImportAggregateHelper.IsGrouped(dataSource);
			
			if (grouped != null) {
				
				foreach (var element in grouped) {
					var s = element.Sum(o => {
					                    	var v = ReadValueFromObject(fieldName, o);
					                    	return TypeNormalizer.EnsureType<double>(v);
					                    });
					sum = sum + s;
				}
			} else {
				if (ImportAggregateHelper.FieldExist(dataSource.FirstOrDefault(),fieldName)) {
					sum = dataSource.Sum(o => {
					                     	var v = ReadValueFromObject(fieldName, o);
					                     	return TypeNormalizer.EnsureType<double>(v);
					                     });
				}
			}
			return sum.ToString();
		}
        public static object Sum(ScriptThread thread, AstNode[] childNodes)
        {
            double sum =  0;
            object firstItem = null;
            bool isTimeSpan;

            var fieldName = childNodes[0].Evaluate(thread).ToString();
            var dataSource = thread.GetDataSource();
            var grouped = ImportAggregateHelper.IsGrouped(dataSource);

            if (grouped != null) {
                var firstGroupElement = dataSource.FirstOrDefault() as IGrouping<object, object>;
                firstItem = firstGroupElement.FirstOrDefault();
                isTimeSpan = HandleTimeSpan(firstItem,fieldName);
                double groupSum = 0;
                foreach (var element in grouped) {
                    if (isTimeSpan) {
                        groupSum = element.Sum(o => {return TimeSpanSum(fieldName,o);});
                    } else {
                        groupSum = element.Sum(o => {return SimpleSum(fieldName,o);});
                    }
                    sum = sum + groupSum;
                }
            } else {
                firstItem = dataSource.FirstOrDefault();
                isTimeSpan = HandleTimeSpan(firstItem,fieldName);

                if (ImportAggregateHelper.FieldExist(dataSource.FirstOrDefault(),fieldName)) {
                    if (isTimeSpan) {
                        sum = dataSource.Sum(o => {return TimeSpanSum(fieldName,o); });
                    } else {
                        sum = dataSource.Sum(o => {return SimpleSum(fieldName,o); });
                    }
                }
            }
            return sum.ToString();
        }