private DslFormatBlock CreateFormatExprFromFields(IEnumerable <DataSourceFieldInfo> availableFields) =>
new DslFormatBlock
{
Selects = availableFields.Select(_ => new DslFormatItem
{
Value = _queryVariableNameBuilder.Encode(_.Key)
})
};
public string Translate([NotNull] DslGroupBlock queryBlock)
{
if (queryBlock == null)
{
throw new ArgumentNullException(nameof(queryBlock));
}
var properties = queryBlock.Items.Select(_ =>
_queryVariableNameBuilder.ToProperty(
_queryVariableNameBuilder.Encode(_.VariableName)));
return($".GroupBy(x => new{{{string.Join(",", properties)}}})");
}
public string ToDsl([NotNull] DslOrderBlock queryBlock)
{
if (queryBlock == null)
{
throw new ArgumentNullException(nameof(queryBlock));
}
if (queryBlock.Items == null ||
!queryBlock.Items.Any())
{
return(string.Empty);
}
var orderFieds = string.Join(", ",
queryBlock.Items
.Select(_ =>
$"{_queryVariableNameBuilder.Encode(_.OrderFieldName)} {(_.SortOrder == SortOrder.Ascending ? DslKeywords.Asc : DslKeywords.Desc)}"));
return($"{DslKeywords.Order} {orderFieds}");
}
public void Restrict([NotNull] DslDataQuery query,
[NotNull] Type entityType,
[NotNull] DataSourceInfo dataSource,
long userId)
{
if (query == null)
{
throw new ArgumentNullException(nameof(query));
}
if (entityType == null)
{
throw new ArgumentNullException(nameof(entityType));
}
if (dataSource == null)
{
throw new ArgumentNullException(nameof(dataSource));
}
var projectProperty = entityType
.GetCustomAttributes(typeof(ProjectPropertyAttribute), false)
.Cast <ProjectPropertyAttribute>()
.SingleOrDefault();
if (projectProperty == null)
{
return;
}
var userProjectIds = _dataSourceAccessValidator
.GetDataSourceProjects(dataSource.Key, userId)
.ToArray();
if (!userProjectIds.Any())
{
throw new UnauthorizedAccessException();
}
var blocks = new List <IDslQueryBlock>();
var propertyName = _queryVariableNameBuilder.Encode(projectProperty.PropertyName);
var restrictWhere = new DslFilterBlock
{
Specification = new FilterSpecification
{
LeftSpecification = new FilterArraySpecification
{
Specifications = userProjectIds.Select(_ =>
new FilterConstantSpecification
{
Value = $"{_}L"
})
},
Operator = FilterOperator.Contains,
RightSpecification = new FilterParameterSpecification
{
Value = propertyName
}
}
};
blocks.Add(restrictWhere);
blocks.AddRange(query.Blocks);
query.Blocks = blocks.ToArray();
}