public static IQueryable <TEntity> ContainsSearchWithAnd <TEntity>(this IQueryable <TEntity> source,
Expression <Func <TEntity, object> > expression, string searchTerm) where TEntity : class
{
var s = FreeTextSearchImp(source, expression, FullTextPrefixes.ContainsWithAnd(searchTerm));
return(s);
}
private static Expression CreateValueExpression(Type targetType, object value, FilterOperator filterOperator, CultureInfo culture)//edited by moravej
{
if (((targetType != typeof(string)) && (!targetType.IsValueType || targetType.IsNullableType())) &&
(string.Compare(value as string, "null", StringComparison.OrdinalIgnoreCase) == 0))
{
value = null;
}
if (value != null)
{
Type nonNullableTargetType = targetType.GetNonNullableType();
var valueType = value.GetType(); //added by moravej
if (valueType == typeof(string) && filterOperator == FilterOperator.SemanticContains) //Added by moravej
{
value = FullTextPrefixes.Contains(value.ToString(), true);
}
if (valueType != nonNullableTargetType)
{
if (nonNullableTargetType.IsEnum)
{
if (valueType.IsArray)//by moravej
{
value = CreateArrayValue(targetType, nonNullableTargetType, value, true, false, null);
}
else
{
value = Enum.Parse(nonNullableTargetType, value.ToString(), true);
}
}
else if (value is IConvertible || (valueType.IsArray && valueType.GetElementType().IsAssignableFrom(typeof(IConvertible))))
{
if (valueType.IsArray)//by moravej
{
value = CreateArrayValue(targetType, nonNullableTargetType, value, false, true, culture);
}
else
{
value = Convert.ChangeType(value, nonNullableTargetType, culture);
}
}
}
}
return(CreateConstantExpression(value));
}
/// <summary>
///
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="source"></param>
/// <param name="expression"></param>
/// <param name="searchTerm"></param>
/// <returns></returns>
public static IQueryable <TEntity> FreeTextSearch <TEntity>(this IQueryable <TEntity> source,
Expression <Func <TEntity, object> > expression, string searchTerm) where TEntity : class
{
return(FreeTextSearchImp(source, expression, FullTextPrefixes.Freetext(searchTerm)));
}
