private IPredicate FilterByIdentificationNumber(PatientFilterDto filter)
{
if (string.IsNullOrWhiteSpace(filter.IdentificationNumber))
{
return(null);
}
return(new SimplePredicate(nameof(Patient.IdentificationNumber), ValueComparingOperator.Equal, filter.IdentificationNumber));
}
private IPredicate FilterByUsername(PatientFilterDto filter)
{
if (string.IsNullOrWhiteSpace(filter.Username))
{
return(null);
}
return(new SimplePredicate(nameof(Patient.Username), ValueComparingOperator.Equal, filter.Username));
}
protected override IQuery <Patient> ApplyWhereClause(IQuery <Patient> query, PatientFilterDto filter)
{
var definedPredicates = new List <IPredicate>();
AddIfDefined(FilterByUsername(filter), definedPredicates);
AddIfDefined(FilterByName(filter), definedPredicates);
AddIfDefined(FilterByIdentificationNumber(filter), definedPredicates);
if (definedPredicates.Count == 0)
{
return(query);
}
if (definedPredicates.Count == 1)
{
return(query.Where(definedPredicates.First()));
}
var wherePredicate = new CompositePredicate(definedPredicates);
return(query.Where(wherePredicate));
}
private IPredicate FilterByName(PatientFilterDto filter)
{
if (string.IsNullOrWhiteSpace(filter.FullName))
{
return(null);
}
char[] delim = { ' ' };
var trimmedName = filter.FullName.Trim();
; string[] name = filter.FullName.Split(delim, 2);
if (name.Length != 2)
{
return(null);
}
var predicates = new List <IPredicate>
{
new SimplePredicate(nameof(Patient.Name), ValueComparingOperator.Equal, name[0]),
new SimplePredicate(nameof(Patient.Surname), ValueComparingOperator.Equal, name[1])
};
return(new CompositePredicate(predicates));
}
