public static IReadOnlyLogbook Build(IFieldCollection fields, IFieldValuePairs fieldValuePairs, IFieldPredicatePairs fieldPredicatePairs, IFieldOperationPairs fieldOperationPairs, out IEnumerable <QueryField> queryFields)
{
queryFields = Enumerable.Empty <QueryField>();
ILogbook logs = Logger.NewLogbook();
ICollection <QueryField> queryFieldCollection = new Collection <QueryField>();
foreach (Field field in fields)
{
bool valueFound = fieldValuePairs.TryGetValue(field, out object value);
bool predicateFound = fieldPredicatePairs.TryGetValue(field, out ReadOnlyLogbookPredicate <object> predicate);
bool operationFound = fieldOperationPairs.TryGetValue(field, out Operation operation);
if (valueFound && predicateFound && predicate != null)
{
logs.AddRange(predicate.Invoke(value));
}
if (!logs.Safely)
{
break;
}
if (valueFound && operationFound)
{
queryFieldCollection.Add(new QueryField(field, operation, value));
}
}
return(logs);
}
public static IReadOnlyLogbook Build <TModel>(IFieldCollection fields, IFieldValuePairs fieldValuePairs, IFieldPredicatePairs fieldPredicatePairs, out IEnumerable <QueryField> queryFields) where TModel : class, IModel, new()
{
queryFields = Enumerable.Empty <QueryField>();
ILogbook logs = Logger.NewLogbook();
if (!fields.IsSubsetOfModel <TModel>())
{
logs.Failure("Qualifier fields must be subset of model fields");
return(logs);
}
ICollection <QueryField> queryFieldCollection = new Collection <QueryField>();
foreach (Field field in fields)
{
bool valueFound = fieldValuePairs.TryGetValue(field, out object value);
bool predicateFound = fieldPredicatePairs.TryGetValue(field, out ReadOnlyLogbookPredicate <object> predicate);
if (valueFound && predicateFound && predicate != null)
{
logs.AddRange(predicate.Invoke(value));
}
if (!logs.Safely)
{
break;
}
}
return(logs);
}