/// <summary>
/// Return true if there is diagram object that represents efelement/efobject in the diagram.
/// </summary>
/// <param name="efObject"></param>
/// <returns></returns>
internal bool IsEFObjectRepresentedInDiagram(EFObject efObject)
{
var entityTypesInDiagram = EntityTypeShapes.Select(ets => ets.EntityType.Target).ToList();
var entityType = efObject.GetParentOfType(typeof(ConceptualEntityType)) as ConceptualEntityType;
var association = efObject.GetParentOfType(typeof(Association)) as Association;
var associationSet = efObject as AssociationSet;
var entitySet = efObject as EntitySet;
// if efobject is an associationset, check if the corresponding association is in the diagram.
if (associationSet != null &&
associationSet.Association.Status == BindingStatus.Known)
{
association = associationSet.Association.Target;
}
// if efobject is an entity-set, Return true only if all the entity-types contained in the set are represented in the diagram.
if (entitySet != null)
{
foreach (var et in entitySet.GetEntityTypesInTheSet())
{
if (entityTypesInDiagram.Contains(et) == false)
{
return(false);
}
}
return(true);
}
else if (entityType != null)
{
return(entityTypesInDiagram.Contains(entityType));
}
else if (association != null)
{
var associationsInDiagram = AssociationConnectors.Select(a => a.Association.Target).ToList();
return(associationsInDiagram.Contains(association));
}
return(false);
}
// Given an EFObject, this will transform it into something that should be referenceable in the explorer tree.
internal static EFElement GetNavigationTargetForEFObject(EFObject efObject)
{
// find the first parent of EFObject that is an EFElement. This is what we want to navigate to.
var efElement = efObject as EFElement;
if (efElement == null)
{
efElement = efObject.GetParentOfType(typeof(EFElement)) as EFElement;
}
Debug.Assert(efElement != null, "Unable to find parent EFElement of EFObject");
var propertyRef = efElement as PropertyRef;
var propertyRefContainer = efElement as PropertyRefContainer;
if (propertyRef != null ||
propertyRefContainer != null)
{
Property target = null;
if (propertyRef != null)
{
if (propertyRef.Name.Target != null)
{
target = propertyRef.Name.Target;
efElement = target;
}
}
else if (propertyRefContainer != null)
{
// use first referenced Property
foreach (var pr in propertyRefContainer.PropertyRefs)
{
if (pr.Name.Target != null)
{
target = pr.Name.Target;
efElement = target;
break;
}
}
}
if (target == null)
{
// Couldn't find a property to reference, so try for a parent EntityType or Association.
EFElement rtrn = efElement.GetParentOfType(typeof(EntityType)) as EntityType;
if (rtrn == null)
{
rtrn = efElement.GetParentOfType(typeof(Association)) as Association;
}
Debug.Assert(
rtrn != null, "Couldn't find EntityType or Association when swizzling EFObject of type " + efElement.GetType());
efElement = rtrn;
}
}
else if (efElement is AssociationEnd)
{
Debug.Assert(
efElement.Parent is Association, "Found unexpected parent type of AssociationEnd: " + efElement.Parent.GetType());
efElement = efElement.Parent as EFElement;
}
else if (efElement is AssociationSetEnd)
{
Debug.Assert(
efElement.Parent is AssociationSet, "Found unexpected parent type of AssociationSetEnd: " + efElement.Parent.GetType());
efElement = efElement.Parent as EFElement;
}
else if (efElement is ReferentialConstraint)
{
Debug.Assert(
efElement.Parent is Association, "Found unexpected parent type of ReferentialConstraint: " + efElement.Parent.GetType());
efElement = efElement.Parent as EFElement;
}
// some elements are not displayed in the Explorer - if so search for parent that is
while (null != efElement &&
!EntityDesignModelToExplorerModelXRef.IsDisplayedInExplorer(efElement))
{
efElement = efElement.Parent as EFElement;
}
return(efElement);
}
/// <summary>
/// This class will set the focus on the "most-appropriate" DSL node for the given EFObject and DSL Diagram. It is assumed that the
/// EFObject is either a C-Space node, or an M-space node.
/// </summary>
internal static bool NavigateToDSLNodeInDiagram(EntityDesignerDiagram diagram, EFObject efobject)
{
var foundDSLElementMatchInDiagram = false;
var context = PackageManager.Package.DocumentFrameMgr.EditingContextManager.GetNewOrExistingContext(efobject.Artifact.Uri);
// find the model parent (if this is a c-space object)
var cModel = efobject.GetParentOfType(typeof(ConceptualEntityModel)) as ConceptualEntityModel;
// by default, we assume that this our c-space object
var cspaceEFObject = efobject;
EFObject mspaceEFObject = null;
if (cModel == null)
{
var mModel = efobject.GetParentOfType(typeof(MappingModel)) as MappingModel;
Debug.Assert(mModel != null, "efobject is neither in c-space or s-space");
// if this is a mapping node, then we want to find the closest corresponding c-space node
// to which this mapping node is mapped, and set the focus on that.
cspaceEFObject = GetCSpaceEFObjectForMSpaceEFObject(efobject);
mspaceEFObject = efobject;
}
// navigate to the shape in the DSL designer
var diagramItemCollection = new DiagramItemCollection();
RetrieveDiagramItemCollectionForEFObject(diagram, cspaceEFObject, diagramItemCollection);
if (diagram != null &&
diagramItemCollection.Count > 0)
{
diagram.Show();
if (diagram.ActiveDiagramView != null)
{
diagram.ActiveDiagramView.Focus();
diagram.ActiveDiagramView.Selection.Set(diagramItemCollection);
diagram.EnsureSelectionVisible();
}
else
{
// If no active view exists, do the following:
// - Set the selection on the first associated views (if any).
// - Set InitialSelectionDIagramItemSelectionProperty to prevent the first EntityTypeShape to be selected (default behavior)
// This case can happen when the diagram is not initialized or is not fully rendered.
diagram.InitialDiagramItemSelection = diagramItemCollection;
if (diagram.ClientViews != null &&
diagram.ClientViews.Count > 0)
{
foreach (DiagramClientView clientView in diagram.ClientViews)
{
clientView.Selection.Set(diagramItemCollection);
clientView.Selection.EnsureVisible(DiagramClientView.EnsureVisiblePreferences.ScrollIntoViewCenter);
break;
}
}
}
foundDSLElementMatchInDiagram = true;
}
if (mspaceEFObject != null) // navigate to the item in the mapping screen (if we are doing MSL items)
{
var mappingDetailsInfo = context.Items.GetValue <MappingDetailsInfo>();
if (mappingDetailsInfo.MappingDetailsWindow != null)
{
mappingDetailsInfo.MappingDetailsWindow.NavigateTo(mspaceEFObject);
}
}
return(foundDSLElementMatchInDiagram);
}
private static void RetrieveDiagramItemCollectionForEFObject(
EntityDesignerDiagram diagram, EFObject efobject, DiagramItemCollection diagramItemCollection)
{
if (efobject == null)
{
return;
}
var cModel = efobject.RuntimeModelRoot() as ConceptualEntityModel;
if (cModel == null)
{
// this either isn't a c-space object, or it is the ConceptualEntityModel node, so just return null
return;
}
// if this is a child element of the association, return the diagram item for the association
if (!(efobject is Association))
{
var association = efobject.GetParentOfType(typeof(Association)) as Association;
if (association != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, association, diagramItemCollection);
return;
}
}
if (efobject is Association)
{
var shapeElement = GetDesignerShapeElementForEFObject(diagram, efobject);
if (shapeElement != null)
{
diagramItemCollection.Add(new DiagramItem(shapeElement));
return;
}
}
else if (efobject is NavigationProperty)
{
var np = efobject as NavigationProperty;
var shapeElement = GetDesignerShapeElementForEFObject(diagram, np.Parent);
var entityTypeShape = shapeElement as EntityTypeShape;
if (entityTypeShape != null)
{
// get the view model navigation property
var vmNavProp = diagram.ModelElement.ModelXRef.GetExisting(np) as ViewModel.NavigationProperty;
// try to create the DiagramItem from this
if (vmNavProp != null)
{
var index = entityTypeShape.NavigationCompartment.Items.IndexOf(vmNavProp);
if (index >= 0)
{
diagramItemCollection.Add(
new DiagramItem(
entityTypeShape.NavigationCompartment, entityTypeShape.NavigationCompartment.ListField,
new ListItemSubField(index)));
return;
}
}
}
}
else if (efobject is Property)
{
var prop = efobject as Property;
if (prop.IsComplexTypeProperty)
{
// complex type properties are not supported in the designer
return;
}
var shapeElement = GetDesignerShapeElementForEFObject(diagram, prop.Parent);
var entityTypeShape = shapeElement as EntityTypeShape;
if (entityTypeShape != null)
{
// get the view model property
var vmProp = diagram.ModelElement.ModelXRef.GetExisting(prop) as ViewModel.Property;
if (vmProp != null)
{
var index = entityTypeShape.PropertiesCompartment.Items.IndexOf(vmProp);
if (index >= 0)
{
diagramItemCollection.Add(
new DiagramItem(
entityTypeShape.PropertiesCompartment, entityTypeShape.PropertiesCompartment.ListField,
new ListItemSubField(index)));
return;
}
}
}
}
else if (efobject is EntityType)
{
var shapeElement = GetDesignerShapeElementForEFObject(diagram, efobject);
if (shapeElement != null)
{
diagramItemCollection.Add(new DiagramItem(shapeElement));
return;
}
}
else if (efobject is EntitySet)
{
var es = efobject as EntitySet;
foreach (var entityType in es.GetEntityTypesInTheSet())
{
if (entityType != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, entityType, diagramItemCollection);
}
}
return;
}
else if (efobject is AssociationSet)
{
// return a diagram item for the association
var associationSet = efobject as AssociationSet;
var association = associationSet.Association.Target;
if (association != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, association, diagramItemCollection);
return;
}
}
else if (efobject is AssociationSetEnd)
{
var associationSetEnd = efobject as AssociationSetEnd;
var end = associationSetEnd.Role.Target;
if (end != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, end, diagramItemCollection);
return;
}
else
{
var es = associationSetEnd.EntitySet.Target;
if (es != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, es, diagramItemCollection);
return;
}
}
}
else if (efobject is PropertyRef)
{
var pref = efobject as PropertyRef;
if (pref.Name.Target != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, pref.Name.Target, diagramItemCollection);
return;
}
}
else if (efobject is PropertyRefContainer)
{
var prefContainer = efobject as PropertyRefContainer;
// just use the first entry in the list.
foreach (var pref in prefContainer.PropertyRefs)
{
RetrieveDiagramItemCollectionForEFObject(diagram, pref, diagramItemCollection);
return;
}
}
else if (efobject is EFAttribute)
{
// this is an EFAttribute node, so get the DiagramItem for the parent
RetrieveDiagramItemCollectionForEFObject(diagram, efobject.Parent, diagramItemCollection);
return;
}
else if (efobject is ConceptualEntityModel)
{
// nothing in the DSL surface to map to, so return null
return;
}
else if (efobject is ConceptualEntityContainer)
{
// nothing in the DSL surface to map to, so return null
return;
}
else if (efobject is FunctionImport)
{
// nothing in the DSL surface to map to, so return null
return;
}
else
{
Debug.Fail("unexpected type of efobject. type = " + efobject.GetType());
if (efobject.Parent != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, efobject.Parent, diagramItemCollection);
}
}
}
/// <summary>
/// Given a efobject in m-space (ie, it is defined in the mapping section of the edmx file), find the
/// closest object in the c-space (ie, defined in the conceptual schema). We do this by looking
/// for binding objects of the current node bound to something in c-space. If there is no such object, we
/// recursively call this on efobject's parent.
/// </summary>
/// <param name="efobject"></param>
/// <returns></returns>
private static EFObject GetCSpaceEFObjectForMSpaceEFObject(EFObject mspaceEFObject)
{
EFObject cspaceEFObject = null;
var o = mspaceEFObject;
// see if this m-space object has a parent of an association set mapping.
var asm = mspaceEFObject.GetParentOfType(typeof(AssociationSetMapping)) as AssociationSetMapping;
if (asm != null)
{
var associationSet = asm.Name.Target;
if (associationSet != null)
{
var association = associationSet.Association.Target;
if (association != null)
{
Debug.Assert(
association.RuntimeModelRoot() is ConceptualEntityModel, "Expected association to be in C-space, but it is not!");
return(association);
}
}
}
// see if this is a node that requires the function view in the mapping pane
var mfm = mspaceEFObject.GetParentOfType(typeof(ModificationFunctionMapping)) as ModificationFunctionMapping;
var context = PackageManager.Package.DocumentFrameMgr.EditingContextManager.GetNewOrExistingContext(mspaceEFObject.Artifact.Uri);
var mappingDetailsInfo = context.Items.GetValue <MappingDetailsInfo>();
if (mfm != null)
{
mappingDetailsInfo.EntityMappingMode = EntityMappingModes.Functions;
}
else
{
mappingDetailsInfo.EntityMappingMode = EntityMappingModes.Tables;
}
// default case, walk up the model looking for node that has a binding bound to something in c-space.
while (cspaceEFObject == null &&
o != null)
{
var binding = o as ItemBinding;
var container = o as EFContainer;
if (binding != null)
{
// see if this binding is bound to something in c-space
cspaceEFObject = GetCSpaceObjectFromBinding(binding);
}
else if (container != null)
{
// see if any direct children are bindings bound to something in c-space
foreach (var child in container.Children)
{
// check every binding to see if it is bound to seomthing in cspace
var b = child as ItemBinding;
if (b != null)
{
cspaceEFObject = GetCSpaceObjectFromBinding(b);
if (cspaceEFObject != null)
{
// break out of the for loop
break;
}
}
}
}
if (cspaceEFObject == null)
{
o = o.Parent;
}
}
return(cspaceEFObject);
}
// Given an EFObject, this will transform it into something that should be referenceable in the explorer tree.
internal static EFElement GetNavigationTargetForEFObject(EFObject efObject)
{
// find the first parent of EFObject that is an EFElement. This is what we want to navigate to.
var efElement = efObject as EFElement;
if (efElement == null)
{
efElement = efObject.GetParentOfType(typeof(EFElement)) as EFElement;
}
Debug.Assert(efElement != null, "Unable to find parent EFElement of EFObject");
var propertyRef = efElement as PropertyRef;
var propertyRefContainer = efElement as PropertyRefContainer;
if (propertyRef != null
|| propertyRefContainer != null)
{
Property target = null;
if (propertyRef != null)
{
if (propertyRef.Name.Target != null)
{
target = propertyRef.Name.Target;
efElement = target;
}
}
else if (propertyRefContainer != null)
{
// use first referenced Property
foreach (var pr in propertyRefContainer.PropertyRefs)
{
if (pr.Name.Target != null)
{
target = pr.Name.Target;
efElement = target;
break;
}
}
}
if (target == null)
{
// Couldn't find a property to reference, so try for a parent EntityType or Association.
EFElement rtrn = efElement.GetParentOfType(typeof(EntityType)) as EntityType;
if (rtrn == null)
{
rtrn = efElement.GetParentOfType(typeof(Association)) as Association;
}
Debug.Assert(
rtrn != null, "Couldn't find EntityType or Association when swizzling EFObject of type " + efElement.GetType());
efElement = rtrn;
}
}
else if (efElement is AssociationEnd)
{
Debug.Assert(
efElement.Parent is Association, "Found unexpected parent type of AssociationEnd: " + efElement.Parent.GetType());
efElement = efElement.Parent as EFElement;
}
else if (efElement is AssociationSetEnd)
{
Debug.Assert(
efElement.Parent is AssociationSet, "Found unexpected parent type of AssociationSetEnd: " + efElement.Parent.GetType());
efElement = efElement.Parent as EFElement;
}
else if (efElement is ReferentialConstraint)
{
Debug.Assert(
efElement.Parent is Association, "Found unexpected parent type of ReferentialConstraint: " + efElement.Parent.GetType());
efElement = efElement.Parent as EFElement;
}
// some elements are not displayed in the Explorer - if so search for parent that is
while (null != efElement
&& !EntityDesignModelToExplorerModelXRef.IsDisplayedInExplorer(efElement))
{
efElement = efElement.Parent as EFElement;
}
return efElement;
}
/// <summary>
/// This class will set the focus on the "most-appropriate" DSL node for the given EFObject and DSL Diagram. It is assumed that the
/// EFObject is either a C-Space node, or an M-space node.
/// </summary>
internal static bool NavigateToDSLNodeInDiagram(EntityDesignerDiagram diagram, EFObject efobject)
{
var foundDSLElementMatchInDiagram = false;
var context = PackageManager.Package.DocumentFrameMgr.EditingContextManager.GetNewOrExistingContext(efobject.Artifact.Uri);
// find the model parent (if this is a c-space object)
var cModel = efobject.GetParentOfType(typeof(ConceptualEntityModel)) as ConceptualEntityModel;
// by default, we assume that this our c-space object
var cspaceEFObject = efobject;
EFObject mspaceEFObject = null;
if (cModel == null)
{
var mModel = efobject.GetParentOfType(typeof(MappingModel)) as MappingModel;
Debug.Assert(mModel != null, "efobject is neither in c-space or s-space");
// if this is a mapping node, then we want to find the closest corresponding c-space node
// to which this mapping node is mapped, and set the focus on that.
cspaceEFObject = GetCSpaceEFObjectForMSpaceEFObject(efobject);
mspaceEFObject = efobject;
}
// navigate to the shape in the DSL designer
var diagramItemCollection = new DiagramItemCollection();
RetrieveDiagramItemCollectionForEFObject(diagram, cspaceEFObject, diagramItemCollection);
if (diagram != null
&& diagramItemCollection.Count > 0)
{
diagram.Show();
if (diagram.ActiveDiagramView != null)
{
diagram.ActiveDiagramView.Focus();
diagram.ActiveDiagramView.Selection.Set(diagramItemCollection);
diagram.EnsureSelectionVisible();
}
else
{
// If no active view exists, do the following:
// - Set the selection on the first associated views (if any).
// - Set InitialSelectionDIagramItemSelectionProperty to prevent the first EntityTypeShape to be selected (default behavior)
// This case can happen when the diagram is not initialized or is not fully rendered.
diagram.InitialDiagramItemSelection = diagramItemCollection;
if (diagram.ClientViews != null
&& diagram.ClientViews.Count > 0)
{
foreach (DiagramClientView clientView in diagram.ClientViews)
{
clientView.Selection.Set(diagramItemCollection);
clientView.Selection.EnsureVisible(DiagramClientView.EnsureVisiblePreferences.ScrollIntoViewCenter);
break;
}
}
}
foundDSLElementMatchInDiagram = true;
}
if (mspaceEFObject != null) // navigate to the item in the mapping screen (if we are doing MSL items)
{
var mappingDetailsInfo = context.Items.GetValue<MappingDetailsInfo>();
if (mappingDetailsInfo.MappingDetailsWindow != null)
{
mappingDetailsInfo.MappingDetailsWindow.NavigateTo(mspaceEFObject);
}
}
return foundDSLElementMatchInDiagram;
}
private static void RetrieveDiagramItemCollectionForEFObject(
EntityDesignerDiagram diagram, EFObject efobject, DiagramItemCollection diagramItemCollection)
{
if (efobject == null)
{
return;
}
var cModel = efobject.RuntimeModelRoot() as ConceptualEntityModel;
if (cModel == null)
{
// this either isn't a c-space object, or it is the ConceptualEntityModel node, so just return null
return;
}
// if this is a child element of the association, return the diagram item for the association
if (!(efobject is Association))
{
var association = efobject.GetParentOfType(typeof(Association)) as Association;
if (association != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, association, diagramItemCollection);
return;
}
}
if (efobject is Association)
{
var shapeElement = GetDesignerShapeElementForEFObject(diagram, efobject);
if (shapeElement != null)
{
diagramItemCollection.Add(new DiagramItem(shapeElement));
return;
}
}
else if (efobject is NavigationProperty)
{
var np = efobject as NavigationProperty;
var shapeElement = GetDesignerShapeElementForEFObject(diagram, np.Parent);
var entityTypeShape = shapeElement as EntityTypeShape;
if (entityTypeShape != null)
{
// get the view model navigation property
var vmNavProp = diagram.ModelElement.ModelXRef.GetExisting(np) as ViewModel.NavigationProperty;
// try to create the DiagramItem from this
if (vmNavProp != null)
{
var index = entityTypeShape.NavigationCompartment.Items.IndexOf(vmNavProp);
if (index >= 0)
{
diagramItemCollection.Add(
new DiagramItem(
entityTypeShape.NavigationCompartment, entityTypeShape.NavigationCompartment.ListField,
new ListItemSubField(index)));
return;
}
}
}
}
else if (efobject is Property)
{
var prop = efobject as Property;
if (prop.IsComplexTypeProperty)
{
// complex type properties are not supported in the designer
return;
}
var shapeElement = GetDesignerShapeElementForEFObject(diagram, prop.Parent);
var entityTypeShape = shapeElement as EntityTypeShape;
if (entityTypeShape != null)
{
// get the view model property
var vmProp = diagram.ModelElement.ModelXRef.GetExisting(prop) as ViewModel.Property;
if (vmProp != null)
{
var index = entityTypeShape.PropertiesCompartment.Items.IndexOf(vmProp);
if (index >= 0)
{
diagramItemCollection.Add(
new DiagramItem(
entityTypeShape.PropertiesCompartment, entityTypeShape.PropertiesCompartment.ListField,
new ListItemSubField(index)));
return;
}
}
}
}
else if (efobject is EntityType)
{
var shapeElement = GetDesignerShapeElementForEFObject(diagram, efobject);
if (shapeElement != null)
{
diagramItemCollection.Add(new DiagramItem(shapeElement));
return;
}
}
else if (efobject is EntitySet)
{
var es = efobject as EntitySet;
foreach (var entityType in es.GetEntityTypesInTheSet())
{
if (entityType != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, entityType, diagramItemCollection);
}
}
return;
}
else if (efobject is AssociationSet)
{
// return a diagram item for the association
var associationSet = efobject as AssociationSet;
var association = associationSet.Association.Target;
if (association != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, association, diagramItemCollection);
return;
}
}
else if (efobject is AssociationSetEnd)
{
var associationSetEnd = efobject as AssociationSetEnd;
var end = associationSetEnd.Role.Target;
if (end != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, end, diagramItemCollection);
return;
}
else
{
var es = associationSetEnd.EntitySet.Target;
if (es != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, es, diagramItemCollection);
return;
}
}
}
else if (efobject is PropertyRef)
{
var pref = efobject as PropertyRef;
if (pref.Name.Target != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, pref.Name.Target, diagramItemCollection);
return;
}
}
else if (efobject is PropertyRefContainer)
{
var prefContainer = efobject as PropertyRefContainer;
// just use the first entry in the list.
foreach (var pref in prefContainer.PropertyRefs)
{
RetrieveDiagramItemCollectionForEFObject(diagram, pref, diagramItemCollection);
return;
}
}
else if (efobject is EFAttribute)
{
// this is an EFAttribute node, so get the DiagramItem for the parent
RetrieveDiagramItemCollectionForEFObject(diagram, efobject.Parent, diagramItemCollection);
return;
}
else if (efobject is ConceptualEntityModel)
{
// nothing in the DSL surface to map to, so return null
return;
}
else if (efobject is ConceptualEntityContainer)
{
// nothing in the DSL surface to map to, so return null
return;
}
else if (efobject is FunctionImport)
{
// nothing in the DSL surface to map to, so return null
return;
}
else
{
Debug.Fail("unexpected type of efobject. type = " + efobject.GetType());
if (efobject.Parent != null)
{
RetrieveDiagramItemCollectionForEFObject(diagram, efobject.Parent, diagramItemCollection);
}
}
}
/// <summary>
/// Given a efobject in m-space (ie, it is defined in the mapping section of the edmx file), find the
/// closest object in the c-space (ie, defined in the conceptual schema). We do this by looking
/// for binding objects of the current node bound to something in c-space. If there is no such object, we
/// recursively call this on efobject's parent.
/// </summary>
/// <param name="efobject"></param>
/// <returns></returns>
private static EFObject GetCSpaceEFObjectForMSpaceEFObject(EFObject mspaceEFObject)
{
EFObject cspaceEFObject = null;
var o = mspaceEFObject;
// see if this m-space object has a parent of an association set mapping.
var asm = mspaceEFObject.GetParentOfType(typeof(AssociationSetMapping)) as AssociationSetMapping;
if (asm != null)
{
var associationSet = asm.Name.Target;
if (associationSet != null)
{
var association = associationSet.Association.Target;
if (association != null)
{
Debug.Assert(
association.RuntimeModelRoot() is ConceptualEntityModel, "Expected association to be in C-space, but it is not!");
return association;
}
}
}
// see if this is a node that requires the function view in the mapping pane
var mfm = mspaceEFObject.GetParentOfType(typeof(ModificationFunctionMapping)) as ModificationFunctionMapping;
var context = PackageManager.Package.DocumentFrameMgr.EditingContextManager.GetNewOrExistingContext(mspaceEFObject.Artifact.Uri);
var mappingDetailsInfo = context.Items.GetValue<MappingDetailsInfo>();
if (mfm != null)
{
mappingDetailsInfo.EntityMappingMode = EntityMappingModes.Functions;
}
else
{
mappingDetailsInfo.EntityMappingMode = EntityMappingModes.Tables;
}
// default case, walk up the model looking for node that has a binding bound to something in c-space.
while (cspaceEFObject == null
&& o != null)
{
var binding = o as ItemBinding;
var container = o as EFContainer;
if (binding != null)
{
// see if this binding is bound to something in c-space
cspaceEFObject = GetCSpaceObjectFromBinding(binding);
}
else if (container != null)
{
// see if any direct children are bindings bound to something in c-space
foreach (var child in container.Children)
{
// check every binding to see if it is bound to seomthing in cspace
var b = child as ItemBinding;
if (b != null)
{
cspaceEFObject = GetCSpaceObjectFromBinding(b);
if (cspaceEFObject != null)
{
// break out of the for loop
break;
}
}
}
}
if (cspaceEFObject == null)
{
o = o.Parent;
}
}
return cspaceEFObject;
}
