public static string ToWhereClause <T>(this PageRequest request, IEdmModel edm)
where T : class
{
var filter = request?.Filter;
if (string.IsNullOrWhiteSpace(filter))
{
return(null);
}
var parser = new ODataUriParser(edm, new Uri($"{typeof(T).Name}?$filter={filter}", UriKind.Relative));
var filterClause = parser.ParseFilter();
var visitor = new RavenDbQueryNodeVisitor <T>();
filterClause.Expression.Accept(visitor);
return(visitor.Builder.ToString());
}
public static string ToWhereClause <T, TKey>(this PageRequest request, Expression <Func <T, TKey> > keyDefinitionExpression)
where T : class
{
var filter = request?.Filter;
if (string.IsNullOrWhiteSpace(filter))
{
return(null);
}
var builder = new ODataConventionModelBuilder();
var entitySet = builder.EntitySet <T>(typeof(T).Name);
var entityType = entitySet.EntityType;
entityType.HasKey(keyDefinitionExpression);
var edm = builder.GetEdmModel();
var parser = new ODataUriParser(edm, new Uri($"{typeof(T).Name}?$filter={filter}", UriKind.Relative));
var filterClause = parser.ParseFilter();
var visitor = new RavenDbQueryNodeVisitor <T>();
filterClause.Expression.Accept(visitor);
return(visitor.Builder.ToString());
}
