/// <summary>
/// Constructor
/// </summary>
/// <param name="expression">Expression used to point to the property</param>
/// <param name="mapping">Mapping the StringID is added to</param>
protected IDPropertyBase(Expression <Func <TClassType, TDataType> > expression, IMapping mapping)
{
if (expression is null)
{
throw new ArgumentNullException(nameof(expression));
}
if (mapping is null)
{
throw new ArgumentNullException(nameof(mapping));
}
Name = expression.PropertyName();
ColumnName = mapping.Prefix + Name + mapping.Suffix;
CompiledExpression = expression.Compile();
Constraints = new List <string>();
ComputedColumnSpecification = string.Empty;
DefaultValue = DefaultDefaultValue;
Expression = expression;
SetAction = Expression.PropertySetter <TClassType, TDataType>()?.Compile() ?? DefaultSetAction;
InternalFieldName = $"_{Name}Derived";
PropertyType = typeof(TDataType);
MaxLength = PropertyType == typeof(string) ? 100 : 0;
ParentMapping = mapping;
TypeName = PropertyType.GetName();
Index = true;
Unique = true;
_HashCode = Name.GetHashCode(StringComparison.Ordinal) * ParentMapping.GetHashCode() % int.MaxValue;
_ToString = $"{PropertyType.GetName()} {ParentMapping}.{Name}";
}
