//Expects input string in a format of "Condition:IdOfNextNode"
//Condition can be a state check logical condition
public static Func <StateModel, int?> GetDecisions(string inputEquation)
{
var cleanInput = inputEquation.Replace(" ", ""); // no spaces
var iputParts = cleanInput.Split(":");
var conditionInput = iputParts[0];
var nextIdInput = iputParts[1];
return((StateModel state) =>
{
int nextId;
if (ParseCondition(conditionInput)(state) &&
int.TryParse(nextIdInput, out nextId))
{
return nextId;
}
return null;
});
}
public static Expression <Func <Tidings, bool> > BuildExpression(TidingsCondition condition)
{
Type targetType = typeof(Tidings);
ParseCondition <Tidings> parse = new ParseCondition <Tidings>(targetType);
if (!string.IsNullOrEmpty(condition.Account))
{
parse.BuildExpression("ReviceUser", condition.Account, ConditionOperation.Equal);
}
if (condition.IsRead.HasValue)
{
parse.BuildExpression("IsRead", condition.IsRead.Value.ToString(), ConditionOperation.Equal);
}
return(parse.BuildWhereExpression());;
}
