/// <summary>
/// Returns true if <paramref name="a"/> and <paramref name="b"/> are equal.
/// </summary>
/// <param name="a">The first object</param>
/// <param name="b">The second object</param>
/// <returns>true if <paramref name="a"/> and <paramref name="b"/> are equal.</returns>
public static bool AreEqual(FilterExpression a, FilterExpression b)
{
if (a == null && b == null)
{
return(true);
}
if (a != null || b != null)
{
return(false);
}
if (a.Equals(b))
{
return(true);
}
if (!AreEqual(a.Conditions, b.Conditions))
{
return(false);
}
if (a.FilterOperator != b.FilterOperator)
{
return(false);
}
if (!AreEqual(a.Filters, b.Filters))
{
return(false);
}
if (a.IsQuickFindFilter != b.IsQuickFindFilter)
{
return(false);
}
return(true);
}
public Filter CreateFilter()
{
var expression = new FilterExpression();
var dataType = PropertyTypes.Parse(_dataType);
var value = Convert.ChangeType(_value, dataType);
if (dataType == typeof(int))
{
return(expression.Equals(_field, (int)value));
}
if (dataType == typeof(string))
{
return(expression.Equals(_field, (string)value));
}
if (dataType == typeof(DateTime))
{
return(expression.Equals(_field, (DateTime)value));
}
throw new NotSupportedException("Unsupported data type: " + _dataType);
}
public Property Equals_should_be_commutative(NonNull <DurationExpression> first, FilterExpression second) => (first.Item.Equals(second) == second.Equals(first.Item)).ToProperty();