IPrivacyEnforcementServiceValidateQueryTModel Method

bool ValidateQuery<TModel>(
	Expression<Func<TModel, bool>> query,
	IPrincipal principal
)
where TModel : IdentifiedData

Function ValidateQuery(Of TModel As IdentifiedData) ( 
	query As Expression(Of Func(Of TModel, Boolean)),
	principal As IPrincipal
) As Boolean

generic<typename TModel>
where TModel : IdentifiedData
bool ValidateQuery(
	Expression<Func<TModel, bool>^>^ query, 
	IPrincipal^ principal
)

abstract ValidateQuery : 
        query : Expression<Func<'TModel, bool>> * 
        principal : IPrincipal -> bool  when 'TModel : IdentifiedData

Parameters

query

Type: System.Linq.ExpressionsExpressionFuncTModel, Boolean
The query being executed

principal

Type: System.Security.PrincipalIPrincipal
The principal who is executing the query

Type Parameters

TModel

The type of object being filtered

Return Value

Some types of queries may violate or may compromise patient privacy. This method is used by the IRepositoryService prior to a query being performed to ensure that:

1. The query is not using fields which have been configured as forbidden by the jurisdiction
2. The query does not contain explicit queries for data which, when masked, would indicate the condition. For example, if records contain a policy "HIDE HIV programme identifiers", the disclosure of the identifier would be protected via the ApplyTData(IEnumerableTData, IPrincipal) method, however, if a principal explicitly queried for identifier[HIV_PROGRAM].value=!null they would still be disclosed patients which have an HIV program identifier. This method should search the query provided and ensure that principal is not violating such conditions.

Reference