/// <summary>
/// Appends a $graphLookup stage to the pipeline.
/// </summary>
/// <typeparam name="TResult">The type of the result.</typeparam>
/// <typeparam name="TFrom">The type of the from documents.</typeparam>
/// <param name="aggregate">The aggregate.</param>
/// <param name="from">The from collection.</param>
/// <param name="connectFromField">The connect from field.</param>
/// <param name="connectToField">The connect to field.</param>
/// <param name="startWith">The start with value.</param>
/// <param name="as">The as field.</param>
/// <param name="depthField">The depth field.</param>
/// <returns>The fluent aggregate interface.</returns>
public static IAggregateFluent <BsonDocument> GraphLookup <TResult, TFrom>(
this IAggregateFluent <TResult> aggregate,
IMongoCollection <TFrom> from,
FieldDefinition <TFrom, BsonValue> connectFromField,
FieldDefinition <TFrom, BsonValue> connectToField,
AggregateExpressionDefinition <TResult, BsonValue> startWith,
FieldDefinition <BsonDocument, IEnumerable <BsonDocument> > @as,
FieldDefinition <BsonDocument, int> depthField = null)
{
return(aggregate.GraphLookup <BsonDocument, TFrom, BsonValue, BsonValue, BsonValue, BsonDocument, IEnumerable <BsonDocument> >(
from, connectFromField, connectToField, startWith, @as, depthField, null));
}
/// <summary>
/// Appends a $graphLookup stage to the pipeline.
/// </summary>
/// <typeparam name="TResult">The type of the result.</typeparam>
/// <typeparam name="TNewResult">The type of the new result (must be same as TResult with an additional as field).</typeparam>
/// <typeparam name="TFrom">The type of the from documents.</typeparam>
/// <typeparam name="TConnect">The type of the connect field.</typeparam>
/// <typeparam name="TConnectFrom">The type of the connect from field (must be either TConnect or a type that implements IEnumerable{TConnect}).</typeparam>
/// <typeparam name="TStartWith">The type of the start with expression (must be either TConnect or a type that implements IEnumerable{TConnect}).</typeparam>
/// <typeparam name="TAsEnumerable">The type of the enumerable as field.</typeparam>
/// <param name="aggregate">The aggregate.</param>
/// <param name="from">The from collection.</param>
/// <param name="connectFromField">The connect from field.</param>
/// <param name="connectToField">The connect to field.</param>
/// <param name="startWith">The start with value.</param>
/// <param name="as">The as field.</param>
/// <param name="options">The options.</param>
/// <returns>The fluent aggregate interface.</returns>
public static IAggregateFluent <TNewResult> GraphLookup <TResult, TNewResult, TFrom, TConnect, TConnectFrom, TStartWith, TAsEnumerable>(
this IAggregateFluent <TResult> aggregate,
IMongoCollection <TFrom> from,
FieldDefinition <TFrom, TConnectFrom> connectFromField,
FieldDefinition <TFrom, TConnect> connectToField,
AggregateExpressionDefinition <TResult, TStartWith> startWith,
FieldDefinition <TNewResult, TAsEnumerable> @as,
AggregateGraphLookupOptions <TNewResult, TFrom, TConnect, TConnectFrom, TStartWith, TFrom, TAsEnumerable> options = null)
where TAsEnumerable : IEnumerable <TFrom>
{
Ensure.IsNotNull(aggregate, nameof(aggregate));
Ensure.IsNotNull(from, nameof(from));
Ensure.IsNotNull(connectFromField, nameof(connectFromField));
Ensure.IsNotNull(connectToField, nameof(connectToField));
Ensure.IsNotNull(startWith, nameof(startWith));
Ensure.IsNotNull(@as, nameof(@as));
var depthField = (FieldDefinition <TFrom, int>)null;
return(aggregate.GraphLookup(from, connectFromField, connectToField, startWith, @as, depthField, options));
}
/// <summary>
/// Appends a $graphLookup stage to the pipeline.
/// </summary>
/// <typeparam name="TResult">The type of the result.</typeparam>
/// <typeparam name="TNewResult">The type of the new result (must be same as TResult with an additional as field).</typeparam>
/// <typeparam name="TFrom">The type of the from documents.</typeparam>
/// <typeparam name="TConnect">The type of the connect field.</typeparam>
/// <typeparam name="TConnectFrom">The type of the connect from field (must be either TConnect or a type that implements IEnumerable{TConnect}).</typeparam>
/// <typeparam name="TStartWith">The type of the start with expression (must be either TConnect or a type that implements IEnumerable{TConnect}).</typeparam>
/// <typeparam name="TAsEnumerable">The type of the enumerable as field.</typeparam>
/// <param name="aggregate">The aggregate.</param>
/// <param name="from">The from collection.</param>
/// <param name="connectFromField">The connect from field.</param>
/// <param name="connectToField">The connect to field.</param>
/// <param name="startWith">The start with value.</param>
/// <param name="as">The as field.</param>
/// <param name="options">The options.</param>
/// <returns>The fluent aggregate interface.</returns>
public static IAggregateFluent <TNewResult> GraphLookup <TResult, TNewResult, TFrom, TConnect, TConnectFrom, TStartWith, TAsEnumerable>(
this IAggregateFluent <TResult> aggregate,
IMongoCollection <TFrom> from,
Expression <Func <TFrom, TConnectFrom> > connectFromField,
Expression <Func <TFrom, TConnect> > connectToField,
Expression <Func <TResult, TStartWith> > startWith,
Expression <Func <TNewResult, TAsEnumerable> > @as,
AggregateGraphLookupOptions <TNewResult, TFrom, TConnect, TConnectFrom, TStartWith, TFrom, TAsEnumerable> options = null)
where TAsEnumerable : IEnumerable <TFrom>
{
Ensure.IsNotNull(aggregate, nameof(aggregate));
Ensure.IsNotNull(from, nameof(from));
Ensure.IsNotNull(connectFromField, nameof(connectFromField));
Ensure.IsNotNull(connectToField, nameof(connectToField));
Ensure.IsNotNull(startWith, nameof(startWith));
Ensure.IsNotNull(@as, nameof(@as));
var connectFromFieldDefinition = new ExpressionFieldDefinition <TFrom, TConnectFrom>(connectFromField);
var connectToFieldDefinition = new ExpressionFieldDefinition <TFrom, TConnect>(connectToField);
var startWithDefinition = new ExpressionAggregateExpressionDefinition <TResult, TStartWith>(startWith, aggregate.Options.TranslationOptions);
var asDefinition = new ExpressionFieldDefinition <TNewResult, TAsEnumerable>(@as);
return(aggregate.GraphLookup(from, connectFromFieldDefinition, connectToFieldDefinition, startWithDefinition, asDefinition, options));
}
private IAggregateFluent <CkTypeInfo> AggregateCkTypeInfo(IAggregateFluent <CkEntity> aggregate)
{
return(aggregate.GraphLookup(CkEntityInheritances.GetMongoCollection(),
x => x.OriginCkId,
x => x.TargetCkId,
x => x.CkId,
(CkTypeInfo x) => x.BaseTypes, (CkBaseTypeInfo i) => i.BaseTypeDepthIndex)
.Lookup <CkTypeInfo, CkTypeInfo>(_repository.GetCollectionName <CkEntityAssociation>(),
"baseTypes.originCkId",
"originCkId",
"associations.out.inherited")
.Lookup <CkTypeInfo, CkTypeInfo>(_repository.GetCollectionName <CkEntityAssociation>(),
Constants.IdField,
"originCkId",
"associations.out.owned")
.Lookup <CkTypeInfo, CkTypeInfo>(_repository.GetCollectionName <CkEntityAssociation>(),
"baseTypes.originCkId",
"targetCkId",
"associations.in.inherited")
.Lookup <CkTypeInfo, CkTypeInfo>(_repository.GetCollectionName <CkEntityAssociation>(),
Constants.IdField,
"targetCkId",
"associations.in.owned"));
}