/// <summary>
/// Converts a object to it's string representantion
/// </summary>
/// <param name="instance">
/// object to be converted to string
/// </param>
/// <returns>
/// A string representation of object
/// </returns>
public static string ToString(object value)
{
if (value == null)
{
return(null);
}
else if (value is DataType)
{
return(ToString((DataType)value));
}
else if (value is DataMember)
{
return(ToString((DataMember)value));
}
else if (DataType.IsMapped(value.GetType()))
{
DataType dtype = value.GetType();
return(ToString(value, dtype.AllDataMembers));
}
else
{
return(CoreConverter.ToString(value));
}
}
/// <summary>
/// Returns true if a member is properly mapped to be stored as a foreign key, with the primary key fully mapped
/// </summary>
public bool IsForeignKey(MemberInfo member)
{
System.Type type = MemberExpression.GetReturnType(member);
if (!DataType.IsMapped(type))
{
return(false);
}
DataType dtype = type;
foreach (var pk in dtype.PrimaryKey)
{
if (!this.IsMapped(member.Name + "." + pk.Member))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Converts an instance to it's string representantion
/// </summary>
/// <param name="instance">
/// Instance to be converted to string
/// </param>
/// <param name="dmembers">
/// Members that will be serialized
/// </param>
/// <returns>
/// A string representation of instance
/// </returns>
public static string ToString(object instance, IEnumerable <DataMember> dmembers)
{
if (instance == null)
{
return(null);
}
if (!DataType.IsMapped(instance.GetType()))
{
throw new ArgumentOutOfRangeException("instance", "Instance's Type is not mapped as a DataType");
}
DataType dtype = instance.GetType();
string result = "DataType=" + ToString(dtype) + '&';
foreach (DataMember dmember in dmembers)
{
var memberValue = dmember.Member.GetValue(instance);
result += dmember.Member.Expression + '=' + ToString(memberValue);
}
return(result.TrimEnd('&'));
}
