private static void ReplaceModelRoot(
CommandProcessorContext cpc, EFRuntimeModelRoot existingModelRoot, XmlReader newSchemaReader,
CreateModelRootCallback createModelRootCallback)
{
var newModelRootNode = XElement.Load(newSchemaReader);
// find the XObject representing the existing EFRuntimeModelRoot EFObject
var existingModelRootNode = existingModelRoot.XObject as XElement;
Debug.Assert(existingModelRootNode != null, "existingRootXElement is null in ReplaceModelRoot()");
// find the parent of the existing XObject tied to the EFRuntimeModelRoot
var existingModelRootParentNode = existingModelRootNode.Parent;
// delete the old EFRuntimeModelRoot EFObject but do not delete its anti-dependencies
if (null != existingModelRoot)
{
var deleteConceptualModelCommand = new DeleteEFElementCommand(existingModelRoot, true, false);
DeleteEFElementCommand.DeleteInTransaction(cpc, deleteConceptualModelCommand);
}
existingModelRootParentNode.Add(newModelRootNode);
// Callback to create the EFRuntimeModelRoot EFObject
createModelRootCallback(newModelRootNode);
}
private static string GetSchemaFromRuntimeModelRoot(EFRuntimeModelRoot modelRoot)
{
Debug.Assert(modelRoot != null, "EFRuntimeModelROot is null ");
var sb = new StringBuilder();
Debug.Assert(
modelRoot != null && modelRoot.XElement != null,
"Could not find the runtime model root or its XElement in GetSchemaFromRuntimeModelRoot");
if (modelRoot != null &&
modelRoot.XElement != null)
{
using (var writer = new StringWriter(sb, CultureInfo.CurrentCulture))
{
modelRoot.XElement.Save(writer);
}
}
return(sb.ToString());
}
private static void ReplaceModelRoot(
CommandProcessorContext cpc, EFRuntimeModelRoot existingModelRoot, XmlReader newSchemaReader,
CreateModelRootCallback createModelRootCallback)
{
var newModelRootNode = XElement.Load(newSchemaReader);
// find the XObject representing the existing EFRuntimeModelRoot EFObject
var existingModelRootNode = existingModelRoot.XObject as XElement;
Debug.Assert(existingModelRootNode != null, "existingRootXElement is null in ReplaceModelRoot()");
// find the parent of the existing XObject tied to the EFRuntimeModelRoot
var existingModelRootParentNode = existingModelRootNode.Parent;
// delete the old EFRuntimeModelRoot EFObject but do not delete its anti-dependencies
if (null != existingModelRoot)
{
var deleteConceptualModelCommand = new DeleteEFElementCommand(existingModelRoot, true, false);
DeleteEFElementCommand.DeleteInTransaction(cpc, deleteConceptualModelCommand);
}
existingModelRootParentNode.Add(newModelRootNode);
// Callback to create the EFRuntimeModelRoot EFObject
createModelRootCallback(newModelRootNode);
}
