/// <summary>
/// Parameterise all the constants so that the query can be cached by ORM
/// </summary>
/// <param name="dbObj"></param>
/// <param name="ignoreEnumerable">Set to true if does not want to parameterise array.
/// This is required if ORM does not support passing array as parameter.</param>
/// <returns></returns>
public static IDbConstant[] Parameterise(this IDbObject dbObj, bool ignoreEnumerable = false)
{
var constants = dbObj.GetDbObjects <IDbConstant>().Where(c => c.Val != null && c.AsParam).ToArray();
if (ignoreEnumerable)
{
constants = constants.Where(c => !c.ValType.DotNetType.IsEnumerable()).ToArray();
}
var dict = new Dictionary <object, List <IDbConstant> >();
foreach (var c in constants)
{
if (dict.ContainsKey(c.Val))
{
dict[c.Val].Add(c);
continue;
}
dict[c.Val] = new List <IDbConstant>()
{
c
};
}
var parameters = dict.Values.ToArray();
for (var i = 0; i < parameters.Length; i++)
{
foreach (var c in parameters[i])
{
c.ParamName = $"@param{i}";
}
}
return(parameters.Select(p => p.First()).ToArray());
}
