protected IComparisonResult OnlyExists <T1>(T1?parent, ISet <string> fields, string name) where T1 : class, IRosettaModelObject <T1>
{
if (parent == null)
{
return(ComparisonResult.FailureEmptyOperand($"Object {name} does not exist"));
}
var validationResult = parent.MetaData.OnlyExistsValidator.Validate(parent, fields);
if (validationResult.IsSuccess)
{
return(ComparisonResult.Success());
}
return(ComparisonResult.Failure(validationResult.FailureReason));
}
private IComparisonResult?ExecuteDataRule(T obj)
{
var comparisonResult = RuleIsApplicable(obj);
// Only evaluate if applicable
if (comparisonResult?.Result == true)
{
comparisonResult = EvaluateThenExpression(obj) ?? ComparisonResult.FailureEmptyOperand("No result from then expression");
}
else
{
comparisonResult = null;
}
return(comparisonResult);
}
private IComparisonResult CombineIgnoreEmptyOperand(IComparisonResult?other, BooleanFunc booleanFunc)
{
if (this.EmptyOperand && other?.EmptyOperand == true)
{
return(ComparisonResult.FailureEmptyOperand($"{this.Error} and {other?.Error}"));
}
if (this.EmptyOperand)
{
return(other ?? ComparisonResult.FailureEmptyOperand(this.Error));
}
if (other?.EmptyOperand == true)
{
return(this);
}
return(booleanFunc(other));
}
protected IComparisonResult Or(IComparisonResult?left, IComparisonResult?right) => left?.Or(right) ?? right ?? ComparisonResult.FailureEmptyOperand("Missing operands for Or");
protected IComparisonResult And(IComparisonResult?left, IComparisonResult?right) => left?.And(right) ?? ComparisonResult.FailureEmptyOperand("Missing left operand for And");
