public override FilterDefinition <T> Visit(CompareFilter <ClrValue> nodeIn, None args)
{
var propertyName = nodeIn.Path.ToString();
var value = nodeIn.Value.Value;
switch (nodeIn.Operator)
{
case CompareOperator.Empty:
return(Filter.Or(
Filter.Exists(propertyName, false),
Filter.Eq <object?>(propertyName, null),
Filter.Eq <object?>(propertyName, string.Empty),
Filter.Size(propertyName, 0)));
case CompareOperator.Exists:
return(Filter.And(
Filter.Exists(propertyName, true),
Filter.Ne <object?>(propertyName, null)));
case CompareOperator.Matchs:
return(Filter.Regex(propertyName, BuildMatchRegex(nodeIn)));
case CompareOperator.StartsWith:
return(Filter.Regex(propertyName, BuildRegex(nodeIn, s => "^" + s)));
case CompareOperator.Contains:
return(Filter.Regex(propertyName, BuildRegex(nodeIn, s => s)));
case CompareOperator.EndsWith:
return(Filter.Regex(propertyName, BuildRegex(nodeIn, s => s + "$")));
case CompareOperator.Equals:
return(Filter.Eq(propertyName, value));
case CompareOperator.GreaterThan:
return(Filter.Gt(propertyName, value));
case CompareOperator.GreaterThanOrEqual:
return(Filter.Gte(propertyName, value));
case CompareOperator.LessThan:
return(Filter.Lt(propertyName, value));
case CompareOperator.LessThanOrEqual:
return(Filter.Lte(propertyName, value));
case CompareOperator.NotEquals:
return(Filter.Ne(propertyName, value));
case CompareOperator.In:
return(Filter.In(propertyName, ((IList)value !).OfType <object>()));
}
throw new NotSupportedException();
}
public PagedList <dynamic> GetSharedNodes(Guid userId, int pageNumber = 1, int pageSize = 20, bool isPublicOnly = false)
{
var filter = _filterBase & _builder.Eq("OwnedBy", userId) & _builder.Or(
_builder.Eq("AccessPermissions.IsPublic", true),
_builder.Not(_builder.Size("AccessPermissions.Users", 0)),
_builder.Not(_builder.Size("AccessPermissions.Groups", 0))
);
if (isPublicOnly)
{
filter = filter & _builder.Eq("AccessPermissions.IsPublic", true);
}
var nodes = _nodes.Aggregate()
.Lookup <BsonDocument, BsonDocument>(nameof(AccessPermissions), "_id", "_id", nameof(AccessPermissions))
.Unwind <dynamic>(nameof(AccessPermissions))
.Match(filter.Render(_nodes.DocumentSerializer, _nodes.Settings.SerializerRegistry));
return(PagedList(nodes, pageNumber, pageSize));
}
public object SizeEq(string arrayProperty, int value)
{
return(InternalBuilder.Size(arrayProperty, value));
}
//
// 摘要:
// Tests that the size of the named array is equal to some value (see $size).
//
// 参数:
// name:
// The name of the element to test.
//
// size:
// The size to compare to.
//
// 返回结果:
// The builder (so method calls can be chained).
public static FilterDefinition <BsonDocument> Size(string name, int size)
{
return(filter.Size(name, size));
}