protected void ConnectorPropertyGetHandlers(ConnectorPart part, Func <SocketsPart> knownLeft = null, Func <SocketsPart> knownRight = null, Func <ConnectorPart> knownInverse = null)
{
// Add handlers that will load content for id's just-in-time (although sometimes we'll have special rules e.g. drafts)
part.LeftContentField.Loader(knownLeft ?? (() => LoadSocketContent(part, part.Record.LeftContentItem_id, part.Record.LeftContentVersionId)));
part.RightContentField.Loader(knownRight ?? (() => LoadSocketContent(part, part.Record.RightContentItem_id, part.Record.RightContentVersionId)));
part.InverseConnectorField.Loader(knownInverse ?? (() => LoadConnectorContent(part, part.Record.InverseConnector_id, part.Record.InverseConnectorVersionId)));
}
private ConnectorPart LoadConnectorContent(ConnectorPart part, int?leftId, int?leftVersionId)
{
if (leftId.HasValue)
{
if (part.ContentItem.VersionRecord != null && part.ContentItem.VersionRecord.Latest && !part.ContentItem.VersionRecord.Published)
{
return(Services.ContentManager.Get <ConnectorPart>(leftId.Value, VersionOptions.Latest));
}
return(Services.ContentManager.Get <ConnectorPart>(leftId.Value, VersionOptions.Published));
}
return(null);
}
private SocketsPart LoadSocketContent(ConnectorPart part, int leftId, int?leftVersionId)
{
if (leftId != 0)
{
if (part.ContentItem.VersionRecord != null && part.ContentItem.VersionRecord.Latest && !part.ContentItem.VersionRecord.Published)
{
return(Services.ContentManager.Get <SocketsPart>(leftId, VersionOptions.Latest));
}
return(Services.ContentManager.Get <SocketsPart>(leftId, VersionOptions.Published));
}
return(null);
}
protected static void ConnectorPropertySetHandlers(ActivatedContentContext context, ConnectorPart part)
{
// add handlers that will update records when part properties are set
part.LeftContentField.Setter(sock => {
part.Record.LeftContentItem_id = sock == null
// TODO: Throw exception for null socket?
? 0
: sock.ContentItem.Id;
part.Record.LeftContentVersionId = sock == null
? 0
: (sock.ContentItem.VersionRecord == null ? (int?)null : sock.ContentItem.VersionRecord.Id);
return(sock);
});
part.RightContentField.Setter(sock => {
part.Record.RightContentItem_id = sock == null
// TODO: Throw exception for null socket?
? 0
: sock.ContentItem.Id;
part.Record.RightContentVersionId = sock == null
? 0
: (sock.ContentItem.VersionRecord == null ? (int?)null : sock.ContentItem.VersionRecord.Id);
return(sock);
});
part.InverseConnectorField.Setter(conn => {
part.Record.InverseConnector_id = conn == null
// TODO: Throw exception for null socket?
? 0
: conn.ContentItem.Id;
part.Record.InverseConnectorVersionId = conn == null
? 0
: (conn.ContentItem.VersionRecord == null ? (int?)null : conn.ContentItem.VersionRecord.Id);
return(conn);
});
}
protected static void ConnectorPropertySetHandlers(ActivatedContentContext context, ConnectorPart part) {
// add handlers that will update records when part properties are set
part.LeftContentField.Setter(sock => {
part.Record.LeftContentItem_id = sock == null
// TODO: Throw exception for null socket?
? 0
: sock.ContentItem.Id;
part.Record.LeftContentVersionId = sock == null
? 0
: (sock.ContentItem.VersionRecord == null ? (int?)null : sock.ContentItem.VersionRecord.Id);
return sock;
});
part.RightContentField.Setter(sock => {
part.Record.RightContentItem_id = sock == null
// TODO: Throw exception for null socket?
? 0
: sock.ContentItem.Id;
part.Record.RightContentVersionId = sock == null
? 0
: (sock.ContentItem.VersionRecord == null ? (int?)null : sock.ContentItem.VersionRecord.Id);
return sock;
});
part.InverseConnectorField.Setter(conn => {
part.Record.InverseConnector_id = conn == null
// TODO: Throw exception for null socket?
? 0
: conn.ContentItem.Id;
part.Record.InverseConnectorVersionId = conn == null
? 0
: (conn.ContentItem.VersionRecord == null ? (int?)null : conn.ContentItem.VersionRecord.Id);
return conn;
});
}
private ConnectorPart LoadConnectorContent(ConnectorPart part, int? leftId, int? leftVersionId) {
if (leftId.HasValue) {
if (part.ContentItem.VersionRecord != null && part.ContentItem.VersionRecord.Latest && !part.ContentItem.VersionRecord.Published) {
return Services.ContentManager.Get<ConnectorPart>(leftId.Value, VersionOptions.Latest);
}
return Services.ContentManager.Get<ConnectorPart>(leftId.Value, VersionOptions.Published);
}
return null;
}
private SocketsPart LoadSocketContent(ConnectorPart part, int leftId, int? leftVersionId) {
if (leftId != 0) {
if (part.ContentItem.VersionRecord != null && part.ContentItem.VersionRecord.Latest && !part.ContentItem.VersionRecord.Published) {
return Services.ContentManager.Get<SocketsPart>(leftId, VersionOptions.Latest);
}
return Services.ContentManager.Get<SocketsPart>(leftId, VersionOptions.Published);
}
return null;
}
protected void ConnectorPropertyGetHandlers(ConnectorPart part, Func<SocketsPart> knownLeft = null, Func<SocketsPart> knownRight = null, Func<ConnectorPart> knownInverse = null) {
// Add handlers that will load content for id's just-in-time (although sometimes we'll have special rules e.g. drafts)
part.LeftContentField.Loader(knownLeft ?? (() => LoadSocketContent(part,part.Record.LeftContentItem_id, part.Record.LeftContentVersionId)));
part.RightContentField.Loader(knownRight ?? (() => LoadSocketContent(part, part.Record.RightContentItem_id, part.Record.RightContentVersionId)));
part.InverseConnectorField.Loader(knownInverse ?? (() => LoadConnectorContent(part, part.Record.InverseConnector_id, part.Record.InverseConnectorVersionId)));
}
public PreparedQueryPlan PrepareQuery(HarmonyQueryCompilationContext compilationContext)
{
var rootExpr = RootExpressions[_valueBufferParameter];
var processedOns = new List <object>();
var flatList = new List <Tuple <HarmonyTableExpression, QueryBuffer.TypeBuffer> >();
var typeBuffers = new QueryBuffer.TypeBuffer[] { GetTypeBuffer(rootExpr, flatList) };
var expressionTableMapping = flatList.ToDictionary(kvp => kvp.Item1.RootExpression.ConvertedParameter as Expression, kvp => kvp.Item1 as IHarmonyQueryTable, new ExpressionValueComparer());
var tableList = flatList.Select(tpl => tpl.Item1 as IHarmonyQueryTable).ToList();
//extract all of expressions that might represent a given table and add them to the mapping dictionary
foreach (var table in tableList)
{
foreach (var alias in ((HarmonyTableExpression)table).Aliases)
{
if (!expressionTableMapping.ContainsKey(alias))
{
expressionTableMapping.Add(alias, table);
}
}
}
var whereBuilder = new WhereExpressionBuilder(rootExpr.IsCaseSensitive, tableList, expressionTableMapping);
var processedWheres = new List <Object>();
var orderBys = new List <Tuple <FileIO.Queryable.FieldReference, bool> >();
foreach (var expr in rootExpr.WhereExpressions)
{
whereBuilder.VisitForWhere(expr, processedWheres, processedOns);
}
foreach (var tpl in flatList)
{
foreach (var expr in tpl.Item1.OnExpressions)
{
var madeOn = whereBuilder.VisitForOn(expr);
if (madeOn != null)
{
processedOns.Add(madeOn);
if (tpl.Item2.JoinOn == null)
{
tpl.Item2.JoinOn = madeOn;
}
else
{
throw new NotImplementedException();
}
}
}
if (tpl.Item1 != rootExpr)
{
foreach (var expr in tpl.Item1.WhereExpressions)
{
var madeOn = whereBuilder.VisitForOn(expr);
if (madeOn != null)
{
processedOns.Add(madeOn);
if (tpl.Item2.JoinOn != null)
{
madeOn = new ConnectorPart()
{
Op = WhereClauseConnector.AndOperator, Left = tpl.Item2.JoinOn, Right = madeOn
}
}
;
tpl.Item2.JoinOn = madeOn;
}
}
}
foreach (var expr in tpl.Item1.OrderByExpressions)
{
var fieldRef = whereBuilder.VisitForOrderBy(expr.Item1);
if (fieldRef != null)
{
orderBys.Add(Tuple.Create(fieldRef, expr.Item2));
}
}
}
var queryBuffer = new QueryBuffer(flatList.Select(tpl => tpl.Item2).ToList());
var fieldReferences = new Dictionary <int, List <FieldDataDefinition> >();
foreach (var queryExpr in flatList)
{
if (queryExpr.Item1.ReferencedFields.Count > 0)
{
var bufferIndex = queryBuffer.TypeBuffers.IndexOf(queryExpr.Item2);
fieldReferences.Add(bufferIndex, queryExpr.Item1.ReferencedFields);
}
}
var queryPlan = new PreparedQueryPlan(true, processedWheres, fieldReferences, processedOns,
orderBys, queryBuffer, "");
return(queryPlan);
}