private static object ProjectResult <TResult>(IEnumerable <TResult> items, SPModelQueryExecuteMode executeMode)
{
switch (executeMode)
{
case SPModelQueryExecuteMode.FirstOrDefault:
case SPModelQueryExecuteMode.ElementAtOrDefault:
return(items.FirstOrDefault());
case SPModelQueryExecuteMode.First:
case SPModelQueryExecuteMode.ElementAt:
return(items.First());
case SPModelQueryExecuteMode.SingleOrDefault:
return(items.SingleOrDefault());
case SPModelQueryExecuteMode.Single:
return(items.Single());
case SPModelQueryExecuteMode.Any:
case SPModelQueryExecuteMode.All:
return(items.Any());
default:
return(items);
}
}
private SPModelParameterizedQuery(ParameterizedExpression expression, ISPModelManagerInternal manager)
{
SPModelQueryBuilder builder = SPModelQueryExpressionVisitor.Translate(expression, manager);
this.Descriptor = builder.ModelType != null?SPModelDescriptor.Resolve(builder.ModelType) : manager.Descriptor;
this.Expression = builder.Expression;
this.TaxonomyFields = new ReadOnlyCollection <string>(builder.TaxonomyFields.ToArray());
this.expression = expression;
this.executeMode = builder.ExecuteMode;
this.emptyArray = Array.CreateInstance(this.Descriptor.ModelType, 0);
if (builder.SelectExpression != null)
{
this.projector = ((Expression <ResultEvaluator>)builder.SelectExpression).Compile();
}
else
{
this.projector = (ResultEvaluator)Delegate.CreateDelegate(typeof(ResultEvaluator), mOfType.MakeGenericMethod(this.Descriptor.ModelType));
}
this.evaluators = new ReadOnlyDictionary <string, ParameterEvaluator>(builder.ParameterEvaluators);
for (int i = 0; i < PIndexMax; i++)
{
parameterNames[i] = (string)builder.Parameters[i];
}
if (builder.ModelType != null)
{
this.ContentTypeFilterExpression = builder.ContentTypeIds.Aggregate(Caml.False, (v, a) => v | Caml.OfContentType(a));
}
if (!builder.SelectAllProperties)
{
List <string> properties = new List <string>(builder.SelectProperties);
if (!properties.Contains(SPBuiltInFieldName.ContentTypeId))
{
properties.Add(SPBuiltInFieldName.ContentTypeId);
}
this.SelectProperties = new ReadOnlyCollection <string>(properties);
}
}
private static object ProjectResultWithSelector <TSource, TResult>(IEnumerable <TSource> items, Func <TSource, TResult> selector, SPModelQueryExecuteMode executeMode)
{
return(ProjectResult(items.Select(selector), executeMode));
}
