private static object GetConvertedSearchValue(PropertyInfo propertyInfo, FieldComparer fieldComparer)
{
Type propertyType = propertyInfo.PropertyType;
if (propertyType.IsGenericType && propertyType.GetGenericTypeDefinition() == typeof(Nullable <>))
{
if (fieldComparer.CompareValue == null)
{
return(null);
}
propertyType = propertyType.GetGenericArguments()[0];
}
if (propertyType == typeof(DateTime))
{
DateTime dateTime;
if (DateTime.TryParseExact(
fieldComparer.CompareValue,
new[] { DATE_TIME_FORMAT, FormatStrings.DATE_AND_TIME_WITH_MILLISECONDS, FormatStrings.UTC_DATE_AND_TIME_WITH_MILLISECONDS },
null,
DateTimeStyles.AssumeUniversal | DateTimeStyles.AdjustToUniversal,
out dateTime))
{
return(dateTime);
}
throw new FormatException($"The string '{fieldComparer.CompareValue}' cannot be parsed to DateTime. Expected format is '{DATE_TIME_FORMAT}'.");
}
TypeConverter converter = TypeDescriptor.GetConverter(propertyType);
return(converter.ConvertFrom(fieldComparer.CompareValue));
}
private static void AppendFieldComparers <TItem>(FieldComparerGroup <TItem> sourceFieldComparerGroup, FieldComparerGroup destinationFieldComparerGroup)
where TItem : class
{
if ((sourceFieldComparerGroup.Terms.Count() > 1) && (sourceFieldComparerGroup.Operator == LogicalOp.None))
{
throw new ArgumentException($"The logical operator may not be {nameof(LogicalOp.None)} when more than one term is specified!");
}
foreach (SearchTerm <TItem> sourceSearchTerm in sourceFieldComparerGroup.Terms)
{
FieldComparer <TItem> fieldComparer = sourceSearchTerm as FieldComparer <TItem>;
if (fieldComparer != null)
{
destinationFieldComparerGroup.FieldComparers.Add(new FieldComparer
{
FieldName = fieldComparer.FieldName,
Operator = fieldComparer.Operator,
CompareValue = fieldComparer.CompareValue
});
}
else
{
FieldComparerGroup <TItem> sourceSubFieldComparerGroup = sourceSearchTerm as FieldComparerGroup <TItem>;
if (sourceSubFieldComparerGroup != null)
{
var destinationSubFieldComparerGroup = new FieldComparerGroup
{
Operator = sourceSubFieldComparerGroup.Operator
};
AppendFieldComparers(sourceSubFieldComparerGroup, destinationSubFieldComparerGroup);
if (destinationSubFieldComparerGroup.FieldComparers.Count + destinationSubFieldComparerGroup.FieldComparerGroups.Count > 0)
{
destinationFieldComparerGroup.FieldComparerGroups.Add(destinationSubFieldComparerGroup);
}
}
else
{
throw new ArgumentException($"Unknown search term: {sourceSearchTerm?.GetType()}");
}
}
}
}