private void TranslatePropertiesOfEntityType(
ModelEntityType entityType, ViewModelEntityType viewET)
{
foreach (var property in entityType.Properties())
{
var viewProperty = TranslateProperty(viewET, property);
Debug.Assert(viewProperty != null);
if (viewProperty != null)
{
viewET.Properties.Add(viewProperty);
}
}
}
private void TranslateNavigationPropertiesOfEntityType(
ModelEntityType entityType, ViewModelEntityType viewET)
{
var cet = entityType as ConceptualEntityType;
if (cet != null)
{
foreach (var navProp in cet.NavigationProperties())
{
var viewNavProp = TranslateNavigationProperty(viewET, navProp);
if (viewNavProp != null)
{
viewET.NavigationProperties.Add(viewNavProp);
}
}
}
}
/// <summary>
/// Translate model Property into view Property (creates a view Property if not yet created)
/// </summary>
/// <param name="viewEntityType"></param>
/// <param name="property"></param>
/// <returns></returns>
private ViewModelProperty TranslateProperty(ViewModelEntityType viewEntityType, ModelProperty property)
{
var viewProperty =
ModelToDesignerModelXRef.GetNewOrExisting(EditingContext, property, viewEntityType.Partition) as ViewModelProperty;
var scalarProperty = viewProperty as ScalarProperty;
if (scalarProperty != null)
{
// flag if we are part of the key
scalarProperty.EntityKey = property.IsKeyProperty;
}
// set the other properties if they aren't null
if (property.LocalName.Value != null)
{
viewProperty.Name = property.LocalName.Value;
}
viewProperty.Type = property.TypeName;
return(viewProperty);
}
/// <summary>
/// Translate model NavigationProperty into view NavigationProperty (creates a view NavigationProperty if not yet created)
/// </summary>
private ViewModelNavigationProperty TranslateNavigationProperty(ViewModelEntityType viewEntityType, ModelNavigationProperty navProp)
{
var viewNavProp =
ModelToDesignerModelXRef.GetNewOrExisting(EditingContext, navProp, viewEntityType.Partition) as ViewModelNavigationProperty;
Debug.Assert(viewNavProp != null, "Expected non-null navigation property");
viewNavProp.Name = navProp.LocalName.Value;
if (navProp.Relationship.Status == BindingStatus.Known)
{
var association =
ModelToDesignerModelXRef.GetExisting(EditingContext, navProp.Relationship.Target, viewEntityType.Partition) as
ViewModelAssociation;
// Association might be null here if the related entity does not exist in the current diagram.
if (association != null)
{
viewNavProp.Association = association;
// On a self-relationship case, we ensure that the Source and Target NavProps are not set with the same value.
// The source is set first only if SourceEntity == TargetEntityType and the Source navprop has not been set yet. The other case would be
// if this is not a self-relationship.
if (viewEntityType == association.SourceEntityType &&
((association.SourceEntityType == association.TargetEntityType && association.SourceNavigationProperty == null) ||
(association.SourceEntityType != association.TargetEntityType)))
{
association.SourceNavigationProperty = viewNavProp;
}
// SourceEntityType might be the same as TargetEntityType, so we need to check this as well
if (viewEntityType == association.TargetEntityType)
{
association.TargetNavigationProperty = viewNavProp;
}
}
}
return(viewNavProp);
}
/// <summary>
/// Translate model NavigationProperty into view NavigationProperty (creates a view NavigationProperty if not yet created)
/// </summary>
private ViewModelNavigationProperty TranslateNavigationProperty(ViewModelEntityType viewEntityType, ModelNavigationProperty navProp)
{
var viewNavProp =
ModelToDesignerModelXRef.GetNewOrExisting(EditingContext, navProp, viewEntityType.Partition) as ViewModelNavigationProperty;
Debug.Assert(viewNavProp != null, "Expected non-null navigation property");
viewNavProp.Name = navProp.LocalName.Value;
if (navProp.Relationship.Status == BindingStatus.Known)
{
var association =
ModelToDesignerModelXRef.GetExisting(EditingContext, navProp.Relationship.Target, viewEntityType.Partition) as
ViewModelAssociation;
// Association might be null here if the related entity does not exist in the current diagram.
if (association != null)
{
viewNavProp.Association = association;
// On a self-relationship case, we ensure that the Source and Target NavProps are not set with the same value.
// The source is set first only if SourceEntity == TargetEntityType and the Source navprop has not been set yet. The other case would be
// if this is not a self-relationship.
if (viewEntityType == association.SourceEntityType
&& ((association.SourceEntityType == association.TargetEntityType && association.SourceNavigationProperty == null)
|| (association.SourceEntityType != association.TargetEntityType)))
{
association.SourceNavigationProperty = viewNavProp;
}
// SourceEntityType might be the same as TargetEntityType, so we need to check this as well
if (viewEntityType == association.TargetEntityType)
{
association.TargetNavigationProperty = viewNavProp;
}
}
}
return viewNavProp;
}
/// <summary>
/// Translate model Property into view Property (creates a view Property if not yet created)
/// </summary>
/// <param name="viewEntityType"></param>
/// <param name="property"></param>
/// <returns></returns>
private ViewModelProperty TranslateProperty(ViewModelEntityType viewEntityType, ModelProperty property)
{
var viewProperty =
ModelToDesignerModelXRef.GetNewOrExisting(EditingContext, property, viewEntityType.Partition) as ViewModelProperty;
var scalarProperty = viewProperty as ScalarProperty;
if (scalarProperty != null)
{
// flag if we are part of the key
scalarProperty.EntityKey = property.IsKeyProperty;
}
// set the other properties if they aren't null
if (property.LocalName.Value != null)
{
viewProperty.Name = property.LocalName.Value;
}
viewProperty.Type = property.TypeName;
return viewProperty;
}
private void TranslateNavigationPropertiesOfEntityType(
ModelEntityType entityType, ViewModelEntityType viewET)
{
var cet = entityType as ConceptualEntityType;
if (cet != null)
{
foreach (var navProp in cet.NavigationProperties())
{
var viewNavProp = TranslateNavigationProperty(viewET, navProp);
if (viewNavProp != null)
{
viewET.NavigationProperties.Add(viewNavProp);
}
}
}
}
private void TranslatePropertiesOfEntityType(
ModelEntityType entityType, ViewModelEntityType viewET)
{
foreach (var property in entityType.Properties())
{
var viewProperty = TranslateProperty(viewET, property);
Debug.Assert(viewProperty != null);
if (viewProperty != null)
{
viewET.Properties.Add(viewProperty);
}
}
}
