public static ExpressionStarter <ResCurrentType> Build(ResourceSearchExpressionTrees <ResCurrentType, ResIndexStringType, ResIndexTokenType, ResIndexUriType, ResIndexReferenceType, ResIndexQuantityType, ResIndexDateTimeType> Search, ExpressionStarter <ResCurrentType> NewPredicate, SearchParameterBase SearchItem, IDtoRootUrlStore PrimaryRootUrlStore)
{
if (SearchItem is SearchParameterReferance SearchTypeReference)
{
//Improved Query when searching for FhirIds for the same Resource type and search parameter yet different FhirIds.
//It creates a SQL 'IN' cause instead of many 'OR' statements and should be more efficient.
//Heavily used in chain searching where we traverse many References.
//The 'Type' modifier is already resolved when the search parameter is parsed, so the SearchValue.FhirRequestUri.ResourseName is the correct Resource name at this stage
if (SearchTypeReference.ValueList.Count > 1 && SearchTypeReference.ValueList.TrueForAll(x =>
x.FhirRequestUri.IsRelativeToServer &&
x.FhirRequestUri.ResourseName == SearchTypeReference.ValueList[0].FhirRequestUri.ResourseName &&
string.IsNullOrWhiteSpace(x.FhirRequestUri.VersionId)))
{
string[] ReferenceFhirIdArray = SearchTypeReference.ValueList.Select(x => x.FhirRequestUri.ResourceId).ToArray();
NewPredicate = NewPredicate.Or(Search.ReferanceCollectionAnyEqualTo_ByKey_Many_FhirIds(SearchTypeReference.Id, PrimaryRootUrlStore.Id, SearchTypeReference.ValueList[0].FhirRequestUri.ResourseName, ReferenceFhirIdArray, SearchTypeReference.ValueList[0].FhirRequestUri.VersionId));
return(NewPredicate);
}
foreach (var SearchValue in SearchTypeReference.ValueList)
{
if (!SearchTypeReference.Modifier.HasValue)
{
if (IsServiceUrlPrimary(PrimaryRootUrlStore, SearchValue))
{
NewPredicate = NewPredicate.Or(Search.ReferanceCollectionAnyEqualTo_ByKey(SearchTypeReference.Id, PrimaryRootUrlStore.Id, SearchValue.FhirRequestUri.ResourseName, SearchValue.FhirRequestUri.ResourceId, SearchValue.FhirRequestUri.VersionId));
}
else
{
NewPredicate = NewPredicate.Or(Search.ReferanceCollectionAnyEqualTo_ByUrlString(SearchTypeReference.Id, SearchValue.FhirRequestUri.UriPrimaryServiceRoot.OriginalString.StripHttp().ToLower(), SearchValue.FhirRequestUri.ResourseName, SearchValue.FhirRequestUri.ResourceId, SearchValue.FhirRequestUri.VersionId));
}
}
else
{
switch (SearchTypeReference.Modifier)
{
case SearchParameter.SearchModifierCode.Missing:
if (SearchValue.IsMissing)
{
NewPredicate = NewPredicate.Or(Search.ReferanceCollectionIsNull(SearchTypeReference.Id));
}
else
{
NewPredicate = NewPredicate.Or(Search.ReferanceCollectionIsNotNull(SearchTypeReference.Id));
}
break;
case SearchParameter.SearchModifierCode.Exact:
throw new FormatException($"The search modifier: {SearchTypeReference.Modifier.ToString()} is not supported for search parameter types of Reference.");
case SearchParameter.SearchModifierCode.Contains:
throw new FormatException($"The search modifier: {SearchTypeReference.Modifier.ToString()} is not supported for search parameter types of Reference.");
case SearchParameter.SearchModifierCode.Text:
throw new FormatException($"The search modifier: {SearchTypeReference.Modifier.ToString()} is not supported for search parameter types of Reference.");
case SearchParameter.SearchModifierCode.Type:
//The 'Type' modifier is already resolved when the search parameter is parsed, so the SearchValue.FhirRequestUri.ResourseName is the correct Resource name at this stage
if (IsServiceUrlPrimary(PrimaryRootUrlStore, SearchValue))
{
NewPredicate = NewPredicate.Or(Search.ReferanceCollectionAnyEqualTo_ByKey(SearchTypeReference.Id, PrimaryRootUrlStore.Id, SearchValue.FhirRequestUri.ResourseName, SearchValue.FhirRequestUri.ResourceId, SearchValue.FhirRequestUri.VersionId));
}
else
{
NewPredicate = NewPredicate.Or(Search.ReferanceCollectionAnyEqualTo_ByUrlString(SearchTypeReference.Id, SearchValue.FhirRequestUri.UriPrimaryServiceRoot.OriginalString.StripHttp().ToLower(), SearchValue.FhirRequestUri.ResourseName, SearchValue.FhirRequestUri.ResourceId, SearchValue.FhirRequestUri.VersionId));
}
break;
case SearchParameter.SearchModifierCode.Below:
throw new FormatException($"The search modifier: {SearchTypeReference.Modifier.ToString()} is not supported for search parameter types of Reference.");
case SearchParameter.SearchModifierCode.Above:
throw new FormatException($"The search modifier: {SearchTypeReference.Modifier.ToString()} is not supported for search parameter types of Reference.");
case SearchParameter.SearchModifierCode.In:
throw new FormatException($"The search modifier: {SearchTypeReference.Modifier.ToString()} is not supported for search parameter types of Reference.");
case SearchParameter.SearchModifierCode.NotIn:
throw new FormatException($"The search modifier: {SearchTypeReference.Modifier.ToString()} is not supported for search parameter types of Reference.");
default:
throw new System.ComponentModel.InvalidEnumArgumentException(SearchTypeReference.Modifier.ToString(), (int)SearchTypeReference.Modifier, typeof(SearchParameter.SearchModifierCode));
}
}
}
}
return(NewPredicate);
}