private static Expression CreateInnerExpression(TreeNodeDynamicContext dynamicContext, ParentIdFilterNode parentIdFilterNode, DataElementsTreeNode dataElementsTreeNode, bool includeJoin = true)
{
Type interfaceType = dataElementsTreeNode.CurrentDataInterfaceType;
ParameterExpression parameterExpression = Expression.Parameter(interfaceType, "innerData");
List <int> filtersToSkip = new List <int>()
{
parentIdFilterNode.Id
};
foreach (ParentIdFilterNode childParentIdFilterNode in dataElementsTreeNode.FilterNodes.OfType <ParentIdFilterNode>().Where(f => f.Id != parentIdFilterNode.Id))
{
if (childParentIdFilterNode.ParentFilterTypeTreeNode.IsAncestor(parentIdFilterNode.ParentFilterTypeTreeNode))
{
filtersToSkip.Add(childParentIdFilterNode.Id);
}
}
Expression filterExpression = dataElementsTreeNode.CreateAccumulatedFilterExpression(parameterExpression, interfaceType, dynamicContext, filtersToSkip);
Expression whereExpression = ExpressionHelper.CreateWhereExpression(DataFacade.GetData(interfaceType).Expression, parameterExpression, filterExpression);
if ((includeJoin) && (dataElementsTreeNode.JoinDataElementsTreeNode != null))
{
//MRJ: Multiple Parent Filter: Recursive call, so we would have to make multiple recursive calls
Expression innerInnerExpression = CreateInnerExpression(dynamicContext, dataElementsTreeNode.JoinParentIdFilterNode, dataElementsTreeNode.JoinDataElementsTreeNode);
// Create join lambda expressions
PropertyInfo outerKeyPropertyInfo = dataElementsTreeNode.KeyPropertyInfo;
LambdaExpression outerKeySelectorExpression = Expression.Lambda(Expression.Property(parameterExpression, outerKeyPropertyInfo), parameterExpression);
Type innerKeyType = TypeHelpers.FindElementType(innerInnerExpression);
ParameterExpression innerKeySelectorParameterExpression = Expression.Parameter(innerKeyType, "innerKeyParam");
LambdaExpression innerKeySelectorExpression = Expression.Lambda(innerKeySelectorParameterExpression, innerKeySelectorParameterExpression);
ParameterExpression parameterExpression1 = Expression.Parameter(dataElementsTreeNode.CurrentDataInterfaceType, "param1");
ParameterExpression parameterExpression2 = Expression.Parameter(outerKeyPropertyInfo.PropertyType, "param2");
LambdaExpression resultSelector = Expression.Lambda(parameterExpression1, parameterExpression1, parameterExpression2);
Expression joinExpression = ExpressionHelper.CreateJoinExpression(
whereExpression,
innerInnerExpression,
outerKeySelectorExpression,
innerKeySelectorExpression,
resultSelector);
whereExpression = joinExpression;
}
Expression selectExpression = ExpressionHelper.CreateSelectExpression(whereExpression, ExpressionHelper.CreatePropertyExpression(parentIdFilterNode.ReferenceFieldName, parameterExpression), parameterExpression);
Expression distinctExpression = ExpressionHelper.CreateDistinctExpression(selectExpression);
return(distinctExpression);
}
/// <exclude />
protected override void OnInitialize()
{
var parentNode = this.ParentNode as DataFolderElementsTreeNode;
if (this.InterfaceType == null)
{
if (parentNode == null)
{
AddValidationError("TreeValidationError.DataFolderElements.MissingInterfaceType");
return;
}
this.InterfaceType = parentNode.InterfaceType;
}
else
{
if (!typeof(IData).IsAssignableFrom(this.InterfaceType))
{
AddValidationError("TreeValidationError.Common.NotImplementingIData", this.InterfaceType, typeof(IData));
return;
}
if (parentNode != null && parentNode.InterfaceType != this.InterfaceType)
{
AddValidationError("TreeValidationError.DataFolderElements.WrongInterfaceType", this.InterfaceType, parentNode.InterfaceType);
return;
}
}
this.PropertyInfo = this.InterfaceType.GetPropertiesRecursively().SingleOrDefault(f => f.Name == this.FieldName);
if (this.PropertyInfo == null)
{
AddValidationError("TreeValidationError.Common.MissingProperty", this.InterfaceType, this.FieldName);
return;
}
if (this.DateFormat != null && this.PropertyInfo.PropertyType != typeof(DateTime))
{
AddValidationError("TreeValidationError.DataFolderElements.DateFormetNotAllowed", this.FieldName, typeof(DateTime), this.PropertyInfo.PropertyType);
}
if (this.PropertyInfo.PropertyType == typeof(DateTime) && this.DateFormat == null)
{
AddValidationError("TreeValidationError.DataFolderElements.DateFormetIsMissing", this.FieldName);
return;
}
this.DateTimeFormater = new DateTimeFormater(this.DateFormat);
if (!string.IsNullOrEmpty(this.Range) && this.FirstLetterOnly)
{
AddValidationError("TreeValidationError.DataFolderElements.RangesAndFirstLetterOnlyNotAllowed");
}
if (this.FirstLetterOnly && this.PropertyInfo.PropertyType != typeof(string))
{
AddValidationError("TreeValidationError.DataFolderElements.WrongFirstLetterOnlyPropertyType", this.FieldName, typeof(string), this.PropertyInfo.PropertyType);
}
if (!string.IsNullOrEmpty(this.Range))
{
this.FolderRanges = FolderRangesCreator.Create(this, this.Range, this.FieldName, this.PropertyInfo.PropertyType);
}
if (this.ChildNodes.OfType <DataElementsTreeNode>().Any(f => f.InterfaceType != this.InterfaceType))
{
AddValidationError("TreeValidationError.DataFolderElements.WrongDateChildInterfaceType", this.InterfaceType);
}
this.SerializedInterfaceType = TypeManager.SerializeType(this.InterfaceType);
this.AllGroupingNodes = new List <DataFolderElementsTreeNode>();
var usedPropertyNames = new List <string>();
var fieldTypes = new List <Type>();
DataFolderElementsTreeNode treeNode = this;
int dataFolderElementCount = 0;
while (treeNode != null)
{
dataFolderElementCount++;
if (treeNode.InterfaceType != this.InterfaceType)
{
AddValidationError("TreeValidationError.DataFolderElements.InterfaceTypeSwitchNotAllowed", treeNode.InterfaceType, this.InterfaceType);
break;
}
if (treeNode.PropertyInfo.PropertyType != typeof(DateTime))
{
if (usedPropertyNames.Contains(treeNode.FieldName))
{
AddValidationError("TreeValidationError.DataFolderElements.SameFieldUsedTwice", treeNode.FieldName);
break;
}
usedPropertyNames.Add(treeNode.FieldName);
}
this.AllGroupingNodes.Add(treeNode);
if (treeNode.FolderRanges != null)
{
fieldTypes.Add(typeof(int));
}
else if (treeNode.PropertyInfo.PropertyType == typeof(DateTime))
{
fieldTypes.Add(treeNode.DateTimeFormater.GetTupleConstructor().DeclaringType);
}
else
{
fieldTypes.Add(treeNode.PropertyInfo.PropertyType);
}
treeNode = treeNode.ParentNode as DataFolderElementsTreeNode;
}
Type type = GetTupleType(this.AllGroupingNodes.Count);
type = type.MakeGenericType(fieldTypes.ToArray());
this.AllGroupingsTupleConstructor = type.GetConstructors().Single();
Type listType = typeof(List <>).MakeGenericType(this.InterfaceType);
this.FolderIndexListAddMethodInfo = listType.GetMethods().Single(f => f.Name == "Add");
this.FolderIndexListClearMethodInfo = listType.GetMethods().Single(f => f.Name == "Clear");
this.FolderIndexListObject = Activator.CreateInstance(listType);
this.FolderIndexListQueryable = ((IEnumerable)this.FolderIndexListObject).AsQueryable();
if (this.FieldName == null)
{
this.GroupingValuesFieldName = this.FieldName;
}
else
{
this.GroupingValuesFieldName = $"■{this.FieldName}_{dataFolderElementCount}";
}
this.IsTopFolderParent = (this.ParentNode is DataFolderElementsTreeNode) == false;
this.ChildGeneratingDataElementsTreeNode = this.DescendantsBreadthFirst().OfType <DataElementsTreeNode>().First();
IEnumerable <ParentIdFilterNode> parentIdFilterNodes = this.ChildGeneratingDataElementsTreeNode.FilterNodes.OfType <ParentIdFilterNode>();
if (parentIdFilterNodes.Count() <= 1)
{
this.ChildGeneratingParentIdFilterNode = this.ChildGeneratingDataElementsTreeNode.FilterNodes.OfType <ParentIdFilterNode>().SingleOrDefault();
}
else
{
AddValidationError("TreeValidationError.DataFolderElements.TooManyParentIdFilters", treeNode.FieldName);
}
this.KeyPropertyInfo = this.InterfaceType.GetKeyProperties()[0];
if (!typeof(ILocalizedControlled).IsAssignableFrom(this.InterfaceType))
{
this.ShowForeignItems = false;
}
}
/// <exclude />
protected override void OnInitialize()
{
if (!typeof(IData).IsAssignableFrom(this.InterfaceType))
{
AddValidationError("TreeValidationError.Common.NotImplementingIData", this.InterfaceType, typeof(IData));
return;
}
IEnumerable <Type> siblingInterfaceTypes = this.ParentNode.ChildNodes.Where(f => f.GetType() == typeof(DataElementsTreeNode)).Select(f => ((DataElementsTreeNode)f).InterfaceType).ToList();
if (siblingInterfaceTypes.Count() != siblingInterfaceTypes.Distinct().Count())
{
AddValidationError("TreeValidationError.DataElementsTreeNode.SameInterfaceUsedTwice", this.InterfaceType);
return;
}
this.KeyPropertyInfo = this.CurrentDataInterfaceType.GetKeyProperties()[0];
foreach (ParentIdFilterNode parentIdFilterNode in this.FilterNodes.OfType <ParentIdFilterNode>())
{
if (this.ParentFilteringHelpers == null)
{
this.ParentFilteringHelpers = new Dictionary <Type, ParentFilterHelper>();
}
if (this.ParentFilteringHelpers.ContainsKey(parentIdFilterNode.ParentFilterType))
{
AddValidationError("TreeValidationError.DataElementsTreeNode.SameParentFilterInterfaceUsedTwice", parentIdFilterNode.ParentFilterType);
return;
}
var helper = new ParentFilterHelper
{
ParentIdFilterNode = parentIdFilterNode,
ParentReferencedPropertyInfo = this.InterfaceType.GetPropertiesRecursively().Single(f => f.Name == parentIdFilterNode.ReferenceFieldName),
ParentRefereePropertyName = parentIdFilterNode.ParentFilterType.GetKeyProperties()[0].Name
};
this.ParentFilteringHelpers.Add(parentIdFilterNode.ParentFilterType, helper);
}
this.JoinParentIdFilterNode = null;
this.JoinDataElementsTreeNode = null;
foreach (TreeNode descendantTreeNode in this.DescendantsBreadthFirst())
{
var dataElementTreeNode = descendantTreeNode as DataElementsTreeNode;
if (dataElementTreeNode == null)
{
continue;
}
ParentIdFilterNode parentIdFilterNode = dataElementTreeNode.FilterNodes.OfType <ParentIdFilterNode>()
.FirstOrDefault(f => f.ParentFilterType == this.InterfaceType);
if (parentIdFilterNode != null)
{
if (this.JoinParentIdFilterNode == null)
{
this.JoinParentIdFilterNode = parentIdFilterNode;
this.JoinDataElementsTreeNode = dataElementTreeNode;
this.JoinInnerKeyReferencePropertyInfo = this.JoinDataElementsTreeNode.CurrentDataInterfaceType.GetAllProperties().Single(f => f.Name == this.JoinParentIdFilterNode.ReferenceFieldName);
}
else if (this.Display != LeafDisplayMode.Lazy)
{
AddValidationError("TreeValidationError.DataElementsTreeNode.MoreThanOnParentFilterIsPointingToMe", this.InterfaceType);
return;
}
}
}
if (this.Label != null)
{
this.LabelDynamicValuesHelper = new DynamicValuesHelper(this.Label);
this.LabelDynamicValuesHelper.Initialize(this);
}
if (this.ToolTip != null)
{
this.ToolTipDynamicValuesHelper = new DynamicValuesHelper(this.ToolTip);
this.ToolTipDynamicValuesHelper.Initialize(this);
}
if (!typeof(ILocalizedControlled).IsAssignableFrom(this.InterfaceType))
{
this.ShowForeignItems = false;
}
}
private static Expression CreateInnerExpression(TreeNodeDynamicContext dynamicContext, ParentIdFilterNode parentIdFilterNode, DataElementsTreeNode dataElementsTreeNode, bool includeJoin = true)
{
Type interfaceType = dataElementsTreeNode.CurrentDataInterfaceType;
ParameterExpression parameterExpression = Expression.Parameter(interfaceType, "innerData");
List<int> filtersToSkip = new List<int>() { parentIdFilterNode.Id };
foreach (ParentIdFilterNode childParentIdFilterNode in dataElementsTreeNode.FilterNodes.OfType<ParentIdFilterNode>().Where(f => f.Id != parentIdFilterNode.Id))
{
if (childParentIdFilterNode.ParentFilterTypeTreeNode.IsAncestor(parentIdFilterNode.ParentFilterTypeTreeNode))
{
filtersToSkip.Add(childParentIdFilterNode.Id);
}
}
Expression filterExpression = dataElementsTreeNode.CreateAccumulatedFilterExpression(parameterExpression, interfaceType, dynamicContext, filtersToSkip);
Expression whereExpression = ExpressionHelper.CreateWhereExpression(DataFacade.GetData(interfaceType).Expression, parameterExpression, filterExpression);
if ((includeJoin) && (dataElementsTreeNode.JoinDataElementsTreeNode != null))
{
//MRJ: Multiple Parent Filter: Recursive call, so we would have to make multiple recursive calls
Expression innerInnerExpression = CreateInnerExpression(dynamicContext, dataElementsTreeNode.JoinParentIdFilterNode, dataElementsTreeNode.JoinDataElementsTreeNode);
// Create join lambda expressions
PropertyInfo outerKeyPropertyInfo = dataElementsTreeNode.KeyPropertyInfo;
LambdaExpression outerKeySelectorExpression = Expression.Lambda(Expression.Property(parameterExpression, outerKeyPropertyInfo), parameterExpression);
Type innerKeyType = TypeHelpers.FindElementType(innerInnerExpression);
ParameterExpression innerKeySelectorParameterExpression = Expression.Parameter(innerKeyType, "innerKeyParam");
LambdaExpression innerKeySelectorExpression = Expression.Lambda(innerKeySelectorParameterExpression, innerKeySelectorParameterExpression);
ParameterExpression parameterExpression1 = Expression.Parameter(dataElementsTreeNode.CurrentDataInterfaceType, "param1");
ParameterExpression parameterExpression2 = Expression.Parameter(outerKeyPropertyInfo.PropertyType, "param2");
LambdaExpression resultSelector = Expression.Lambda(parameterExpression1, parameterExpression1, parameterExpression2);
Expression joinExpression = ExpressionHelper.CreateJoinExpression(
whereExpression,
innerInnerExpression,
outerKeySelectorExpression,
innerKeySelectorExpression,
resultSelector);
whereExpression = joinExpression;
}
Expression selectExpression = ExpressionHelper.CreateSelectExpression(whereExpression, ExpressionHelper.CreatePropertyExpression(parentIdFilterNode.ReferenceFieldName, parameterExpression), parameterExpression);
Expression distinctExpression = ExpressionHelper.CreateDistinctExpression(selectExpression);
return distinctExpression;
}
