internal override void DeleteModelItem(CommandProcessorContext cpc)
{
Debug.Assert(ModelItem != null, "We are trying to delete a null ModelItem");
if (IsModelItemDeleted() == false)
{
// first cache the property
_property = ScalarProperty.Name.Target;
// create a context if we weren't passed one
if (cpc == null)
{
cpc = new CommandProcessorContext(
Context, EfiTransactionOriginator.MappingDetailsOriginatorId, Resources.Tx_ChangeScalarProperty);
}
// use the item's delete command
var deleteCommand = ScalarProperty.GetDeleteCommand();
deleteCommand.PostInvokeEvent += (o, eventsArgs) => { ModelItem = null; };
DeleteEFElementCommand.DeleteInTransaction(cpc, deleteCommand);
}
// if IsModelItemDeleted == true, just make sure that it is null anyways
ModelItem = null;
}
// <summary>
// NOTE: We don't call this.Parent.RemoveChild(this) because this is always called from the MappingEFElement.Delete() method
// which will remove this item from the parent.
// </summary>
internal override void DeleteModelItem(CommandProcessorContext cpc)
{
Debug.Assert(ModelItem != null, "We are trying to delete a null ModelItem");
if (IsModelItemDeleted() == false)
{
// create a context if we weren't passed one
if (cpc == null)
{
cpc = new CommandProcessorContext(
Context, EfiTransactionOriginator.MappingDetailsOriginatorId, Resources.Tx_DeleteMappingFragment);
}
var fragment = ModelHelper.FindMappingFragment(
cpc, MappingConceptualEntityType.ConceptualEntityType, StorageEntityType, false);
Debug.Assert(fragment != null, "could not find MappingFragment for StorageEntityType " + StorageEntityType.ToPrettyString());
if (fragment != null)
{
// use the item's delete command
var deleteCommand = fragment.GetDeleteCommand();
deleteCommand.PostInvokeEvent += (o, eventsArgs) =>
{
ModelItem = null;
ColumnMappings.ModelItem = null;
};
DeleteEFElementCommand.DeleteInTransaction(cpc, deleteCommand);
}
}
// if IsModelItemDeleted == true, just make sure that it is null anyways
ModelItem = null;
ColumnMappings.ModelItem = null;
}
/// <summary>
/// The mapping view model contains a MappingEndScalarProperty for every key in each end. The user can clear out the
/// underlying scalar property, but that doesn’t remove or add the MappingEndScalarProperty. We need the placeholder
/// in the view model to show the nodes in the Trid even if there isn’t a mapping. Thus, we don't need to call
/// this.Parent.RemoveChild(this) as we want to leave the placeholder.
/// </summary>
internal override void DeleteModelItem(CommandProcessorContext cpc)
{
Debug.Assert(ModelItem != null, "We are trying to delete a null ModelItem");
if (IsModelItemDeleted() == false)
{
// since we are deleting the SP, we need to go back to our "base-less" mode
// where the property info is returned as instance strings - cache off the data
var property = Property;
var propertyType = PropertyType;
// create a context if we weren't passed one
if (cpc == null)
{
cpc = new CommandProcessorContext(
Context, EfiTransactionOriginator.MappingDetailsOriginatorId, Resources.Tx_DeleteScalarProperty);
}
// use the item's delete command
var deleteCommand = ScalarProperty.GetDeleteCommand();
deleteCommand.PostInvokeEvent += (o, eventsArgs) => { ModelItem = null; };
DeleteEFElementCommand.DeleteInTransaction(cpc, deleteCommand);
// restore the data so the display is correct
Property = property;
PropertyType = propertyType;
}
// if IsModelItemDeleted == true, just make sure that it is null anyways
ModelItem = null;
}
// <summary>
// The parent item for the function mapping view model always has 3 children; insert, update and delete. If there isn’t
// a function mapped for any of these, then there is still a view model item since we want to display the ‘creator node’ text.
// Thus, we don't call this.Parent.RemoveChild(this).
// </summary>
internal override void DeleteModelItem(CommandProcessorContext cpc)
{
Debug.Assert(ModelItem != null, "We are trying to delete a null ModelItem");
if (IsModelItemDeleted() == false)
{
// create a context if we weren't passed one
if (cpc == null)
{
cpc = new CommandProcessorContext(
Context, EfiTransactionOriginator.MappingDetailsOriginatorId, Resources.Tx_DeleteFunctionMapping);
}
// use the item's delete command
var deleteCommand = ModificationFunction.GetDeleteCommand(MappingFunctionEntityType.EntityType, Function, _functionType);
deleteCommand.PostInvokeEvent += (o, eventsArgs) =>
{
ModelItem = null;
ClearChildren();
};
DeleteEFElementCommand.DeleteInTransaction(cpc, deleteCommand);
}
// if IsModelItemDeleted == true, just make sure that it is null anyways
ModelItem = null;
}
internal override DeleteEFElementCommand GetDeleteCommand()
{
var cmd = new DeleteEFElementCommand(this);
if (cmd == null)
{
throw new InvalidOperationException();
}
return(cmd);
}
/// <summary>
/// We override this so that we can send 'false' to the second argument of the command c'tor so
/// that we don't rebind all of the bindings in the artifact everytime we move a shape
/// </summary>
/// <returns></returns>
internal override DeleteEFElementCommand GetDeleteCommand()
{
var cmd = new DeleteEFElementCommand(this, false /* = rebindAllBindings */);
if (cmd == null)
{
// shouldn't happen, just to be safe
throw new InvalidOperationException();
}
return(cmd);
}
internal virtual DeleteEFElementCommand GetDeleteCommand()
{
var cmd = new DeleteEFElementCommand(this);
if (cmd == null)
{
// shouldn't happen, just to be safe
throw new InvalidOperationException();
}
return(cmd);
}
internal override void Invoke(CommandProcessorContext cpc)
{
var viewModel = _property.GetRootViewModel();
Debug.Assert(viewModel != null, "Unable to find root view model from navigation property:" + _property.Name);
if (viewModel != null)
{
var property = viewModel.ModelXRef.GetExisting(_property) as Model.Entity.NavigationProperty;
Debug.Assert(property != null);
DeleteEFElementCommand.DeleteInTransaction(cpc, property);
viewModel.ModelXRef.Remove(property, _property);
}
}
// <summary>
// NOTE: The association set mapping view model doesn't keep a reference to the mapping model item. Instead, it
// keeps it to the AssociationSet and then it can find the AssociationSetMapping as an anti-dep. We don't need to clear
// or set the ModelItem property.
// </summary>
internal override void DeleteModelItem(CommandProcessorContext cpc)
{
if (IsModelItemDeleted() == false)
{
// create a context if we weren't passed one
if (cpc == null)
{
cpc = new CommandProcessorContext(
Context, EfiTransactionOriginator.MappingDetailsOriginatorId, Resources.Tx_DeleteAssociationSetMapping);
}
DeleteEFElementCommand.DeleteInTransaction(cpc, AssociationSet.AssociationSetMapping);
}
}
internal override void Invoke(CommandProcessorContext cpc)
{
var viewModel = _association.GetRootViewModel();
Debug.Assert(viewModel != null, "Unable to find root view model from association: " + _association.Name);
if (viewModel != null)
{
var association = viewModel.ModelXRef.GetExisting(_association) as Model.Entity.Association;
Debug.Assert(association != null);
DeleteEFElementCommand.DeleteInTransaction(cpc, association);
viewModel.ModelXRef.Remove(association, _association);
}
}
internal override void Invoke(CommandProcessorContext cpc)
{
var viewModel = EntityTypeShape.GetRootViewModel();
Debug.Assert(viewModel != null, "Unable to find root view model from entity type shape: " + EntityTypeShape.AccessibleName);
if (viewModel != null)
{
var modelEntityShape = viewModel.ModelXRef.GetExisting(EntityTypeShape) as Model.Designer.EntityTypeShape;
if (modelEntityShape != null)
{
DeleteEFElementCommand.DeleteInTransaction(cpc, modelEntityShape);
viewModel.ModelXRef.Remove(modelEntityShape, EntityTypeShape);
}
}
}
private static void SetEndOnDelete(AssociationEnd end, string value)
{
var cpc = PropertyWindowViewModelHelper.GetCommandProcessorContext();
if (end.OnDeleteAction != null &&
value == ModelConstants.OnDeleteAction_None)
{
DeleteEFElementCommand.DeleteInTransaction(cpc, end.OnDeleteAction);
}
else if (end.OnDeleteAction == null &&
value == ModelConstants.OnDeleteAction_Cascade)
{
CommandProcessor.InvokeSingleCommand(cpc, new CreateOnDeleteActionCommand(end, value));
}
}
internal override void Invoke(CommandProcessorContext cpc)
{
var viewModel = InheritanceConnector.GetRootViewModel();
Debug.Assert(viewModel != null, "Unable to find root view model from inheritance connector: " + InheritanceConnector);
if (viewModel != null)
{
var modelInheritanceConnector = viewModel.ModelXRef.GetExisting(InheritanceConnector) as Model.Designer.InheritanceConnector;
if (modelInheritanceConnector != null)
{
viewModel.ModelXRef.Remove(modelInheritanceConnector, InheritanceConnector);
DeleteEFElementCommand.DeleteInTransaction(cpc, modelInheritanceConnector);
}
}
}
/// <summary>
/// Loop through our _itemToDelete list and make the calls to ModelController to
/// actually remove the item.
/// </summary>
private void CleanUp()
{
foreach (var deleteMe in _itemsToDelete)
{
var deleteElement = deleteMe as EFElement;
if (deleteElement != null)
{
DeleteEFElementCommand.DeleteInTransaction(_cpc, deleteElement);
}
else
{
Debug.Fail("We are trying to delete a type that we don't handle");
deleteMe.Delete();
}
}
}
internal override void Invoke(CommandProcessorContext cpc)
{
var viewModel = AssociationConnector.GetRootViewModel();
Debug.Assert(
viewModel != null, "Unable to find root view model from association connector: " + AssociationConnector.AccessibleName);
if (viewModel != null)
{
var modelAssociationConnector = viewModel.ModelXRef.GetExisting(AssociationConnector) as Model.Designer.AssociationConnector;
if (modelAssociationConnector != null)
{
DeleteEFElementCommand.DeleteInTransaction(cpc, modelAssociationConnector);
viewModel.ModelXRef.Remove(modelAssociationConnector, AssociationConnector);
}
}
}
internal override void Invoke(CommandProcessorContext cpc)
{
var viewModel = EntityType.GetRootViewModel();
Debug.Assert(viewModel != null, "Unable to find root view model from entity-type:" + EntityType.Name);
if (viewModel != null)
{
var entityType = viewModel.ModelXRef.GetExisting(EntityType) as Model.Entity.EntityType;
// Escher EntityType can be null.
// Scenario: When a user adds an entity-type using toolbox, the code in EntityType_AddRule class will delete the DSL EntityType before Model's EntityType is created.
// In that scenario, the xref between DSL's Entity-Type and Model's Entity-Type has not been established yet.
if (entityType != null)
{
DeleteEFElementCommand.DeleteInTransaction(cpc, entityType);
viewModel.ModelXRef.Remove(entityType, EntityType);
}
}
}
// <summary>
// NOTE: We don't call this.Parent.RemoveChild(this) here because this is always called from the MappingEFElement.Delete() method
// which will remove this item from the parent.
// </summary>
internal override void DeleteModelItem(CommandProcessorContext cpc)
{
Debug.Assert(ModelItem != null, "We are trying to delete a null ModelItem");
if (IsModelItemDeleted() == false)
{
if (cpc == null)
{
cpc = new CommandProcessorContext(
Context, EfiTransactionOriginator.MappingDetailsOriginatorId, Resources.Tx_DeleteResultBinding);
}
// use the item's delete command
var deleteCommand = ResultBinding.GetDeleteCommand();
deleteCommand.PostInvokeEvent += (o, eventsArgs) => { ModelItem = null; };
DeleteEFElementCommand.DeleteInTransaction(cpc, deleteCommand);
}
// if IsModelItemDeleted == true, just make sure that it is null anyways
ModelItem = null;
}
public void Invoke()
{
Debug.Assert(_association != null, "The Association reference is null");
// if the association was deleted in this transaction, just return since we won't need to process it
if (_association == null ||
_association.XObject == null)
{
return;
}
// if foreign keys are supported in this EF version, then we skip all processing here.
if (EdmFeatureManager.GetForeignKeysInModelFeatureState(_association.Artifact.SchemaVersion).IsEnabled())
{
return;
}
Debug.Assert(_association.EntityModel.IsCSDL, "Inferring ref constraints isn't valid for SSDL associations");
Debug.Assert(
_association.AssociationEnds().Count == 2,
"The association to be processed does not have 2 ends while trying to infer ref constraints");
Debug.Assert(
_association.AssociationSet != null,
"The association being processed does not have a valid AssociationSet while trying to infer ref constraints");
// some local aliases for readability
var end1 = _association.AssociationEnds()[0];
var end2 = _association.AssociationEnds()[1];
Debug.Assert(end1 != null && end2 != null, "Null end found while trying to infer ref constraints");
if (end1 == null ||
end2 == null)
{
return;
}
// regardless, we will remove the constraint
if (_association.ReferentialConstraint != null)
{
DeleteEFElementCommand.DeleteInTransaction(_context, _association.ReferentialConstraint);
}
// we will never create a constraint against a self-association
if (end1.Type.Target == end2.Type.Target)
{
return;
}
AssociationEnd principal = null;
AssociationEnd dependent = null;
ModelHelper.DeterminePrincipalDependentAssociationEnds(
_association, out principal, out dependent,
ModelHelper.DeterminePrincipalDependentAssociationEndsScenario.InferReferentialConstraint);
// We found our principal and dependent ends but we still need to confirm that
// the AssociationSetMapping contains key properties that are mapped to the same column
if (principal != null &&
principal.Type.Target != null &&
dependent != null &&
dependent.Type.Target != null)
{
var associationSet = _association.AssociationSet;
if (associationSet != null)
{
var asm = associationSet.AssociationSetMapping;
if (asm != null &&
asm.EndProperties().Count == 2)
{
// any commonly mapped properties will be loaded into these HashSets
var principalPropertyRefs = new HashSet <Property>();
var dependentPropertyRefs = new HashSet <Property>();
EndProperty dependentEndProperty = null;
EndProperty principalEndProperty = null;
var endProp1 = asm.EndProperties()[0];
var endProp2 = asm.EndProperties()[1];
if (endProp1.Name.Target != null)
{
if (endProp1.Name.Target.Role.Target == dependent)
{
dependentEndProperty = endProp1;
principalEndProperty = endProp2;
}
else
{
dependentEndProperty = endProp2;
principalEndProperty = endProp1;
}
}
Debug.Assert(
dependentEndProperty != null && principalEndProperty != null,
"Either dependent or principal EndProperty is null");
if (dependentEndProperty != null &&
principalEndProperty != null)
{
// for each column that is mapped to a key property on the dependent end, determine if there is a
// key property on the principal end that it is also mapped to. If there is, then we need a
// ReferentialConstraint
foreach (var dependentScalarProp in dependentEndProperty.ScalarProperties())
{
var principalScalarProp =
principalEndProperty.ScalarProperties()
.FirstOrDefault(psp => psp.ColumnName.Target == dependentScalarProp.ColumnName.Target);
if (principalScalarProp != null)
{
principalPropertyRefs.Add(principalScalarProp.Name.Target);
dependentPropertyRefs.Add(dependentScalarProp.Name.Target);
}
}
Debug.Assert(
principalPropertyRefs.Count == dependentPropertyRefs.Count,
"List of keys are mismatched while trying to create a Ref Constraint");
if (principalPropertyRefs.Count > 0 &&
dependentPropertyRefs.Count > 0 &&
principalPropertyRefs.Count == dependentPropertyRefs.Count)
{
// if the propertyRefs sets have any data in them, add the constraint
var cmd = new CreateReferentialConstraintCommand(
principal, dependent, principalPropertyRefs, dependentPropertyRefs);
CommandProcessor.InvokeSingleCommand(_context, cmd);
}
}
}
}
}
}
public void Invoke()
{
Debug.Assert(_associationSetMapping != null, "The AssociationSetMapping reference is null");
// if the association set mapping was deleted in this transaction, just return since we won't need to process it
if (_associationSetMapping == null ||
_associationSetMapping.XObject == null)
{
return;
}
var association = _associationSetMapping.TypeName.Target;
Debug.Assert(association != null, "AssociationSetMapping had an invalid Association reference");
if (association == null)
{
return;
}
// if the association was deleted in this transaction, just return since we won't need to process it
if (association.XObject == null)
{
return;
}
var ends = association.AssociationEnds();
Debug.Assert(ends.Count == 2, "AssociationSetMapping's Association does not have 2 ends.");
if (ends.Count < 2)
{
return;
}
var end1 = ends[0];
var end2 = ends[1];
Debug.Assert(end1 != null && end2 != null, "AssociationSetMapping's Association has an invalid reference to one or more Ends");
if (end1 == null ||
end2 == null)
{
return;
}
var ses = _associationSetMapping.StoreEntitySet.Target;
Debug.Assert(ses != null, "AssociationSetMapping had an invalid StoreEntitySet reference");
if (ses == null)
{
return;
}
// see if we need conditions
var needsConditionEnd1 = DoesEndNeedCondition(end1, end2, ses.EntityType.Target);
var needsConditionEnd2 = DoesEndNeedCondition(end2, end1, ses.EntityType.Target);
// clear out existing conditions
var existingConditions = new List <Condition>();
existingConditions.AddRange(_associationSetMapping.Conditions());
for (var i = existingConditions.Count - 1; i >= 0; i--)
{
var condition = existingConditions[i];
DeleteEFElementCommand.DeleteInTransaction(_cpc, condition);
}
if (needsConditionEnd1 || needsConditionEnd2)
{
// now see which conditions we need to add, looking at each EndProperty for the AssociationSetMapping
var conditionCreateForColumn = new HashSet <Property>();
foreach (var endProperty in _associationSetMapping.EndProperties())
{
if (endProperty.Name.Target != null)
{
// then look at each mapped ScalarProperty
foreach (var sp in endProperty.ScalarProperties())
{
// if the column mapped is not a key, add a condition (checking for dupes)
if (sp.ColumnName.Target != null &&
sp.ColumnName.Target.IsKeyProperty == false &&
conditionCreateForColumn.Contains(sp.ColumnName.Target) == false)
{
var createCond = new CreateEndConditionCommand(_associationSetMapping, sp.ColumnName.Target, false, null);
CommandProcessor.InvokeSingleCommand(_cpc, createCond);
conditionCreateForColumn.Add(sp.ColumnName.Target);
}
}
}
}
}
}
public void Invoke()
{
Debug.Assert(_association != null, "The Association reference is null");
// if the association was deleted in this transaction, just return since we won't need to process it
if (_association == null ||
_association.XObject == null)
{
return;
}
// if foreign keys aren't supported in this EF version, then we skip all processing here.
if (!EdmFeatureManager.GetForeignKeysInModelFeatureState(_association.Artifact.SchemaVersion).IsEnabled())
{
return;
}
Debug.Assert(_association.EntityModel.IsCSDL, "Creating foreign key properties isn't valid for SSDL associations");
Debug.Assert(
_association.AssociationEnds().Count == 2,
"The association to be processed does not have 2 ends while trying to create foreign key properties");
Debug.Assert(
_association.AssociationSet != null,
"The association being processed does not have a valid AssociationSet while trying to create foreign key properties");
// remove any existing RC
if (_association.ReferentialConstraint != null)
{
DeleteEFElementCommand.DeleteInTransaction(_context, _association.ReferentialConstraint);
}
// figure out the principal and dependent ends
AssociationEnd principal = null;
AssociationEnd dependent = null;
ModelHelper.DeterminePrincipalDependentAssociationEnds(
_association, out principal, out dependent,
ModelHelper.DeterminePrincipalDependentAssociationEndsScenario.CreateForeignKeyProperties);
if (principal != null &&
principal.Type.Target != null &&
dependent != null &&
dependent.Type.Target != null)
{
// many-to-many associations don't need foreign key properties
if (principal.Multiplicity.Value == ModelConstants.Multiplicity_Many &&
dependent.Multiplicity.Value == ModelConstants.Multiplicity_Many)
{
return;
}
var principalPropertyRefs = new HashSet <Property>();
var dependentPropertyRefs = new HashSet <Property>();
// add properties to the dependent side
IEnumerable <Property> pkeys;
var cet = principal.Type.Target as ConceptualEntityType;
if (cet != null)
{
// the principal is a c-side entity
pkeys = cet.ResolvableTopMostBaseType.ResolvableKeys;
}
else
{
// the principal is an s-side entity
pkeys = principal.Type.Target.ResolvableKeys;
}
foreach (var pkey in pkeys)
{
// build up the foreign key name, add an '_' if the resulting name wouldn't be camel-case
// e.g.
// Order and Id become "OrderId"
// order and id become "order_id"
//
// get a unique name for this new property
var fkeyName = string.Format(
CultureInfo.CurrentCulture, "{0}{1}{2}",
principal.Type.Target.LocalName.Value,
(char.IsUpper(pkey.LocalName.Value, 0) ? "" : "_"),
pkey.LocalName.Value);
fkeyName = ModelHelper.GetUniqueName(typeof(Property), dependent.Type.Target, fkeyName);
// tweak the properties; we are using the copy/paste process since we have to
// copy all facets of the pk and that code does this already
var pcf = new PropertyClipboardFormat(pkey);
pcf.PropertyName = fkeyName;
pcf.IsKeyProperty = false;
pcf.IsNullable = (principal.Multiplicity.Value == ModelConstants.Multiplicity_ZeroOrOne ? true : false);
pcf.StoreGeneratedPattern = string.Empty;
pcf.GetterAccessModifier = string.Empty;
pcf.SetterAccessModifier = string.Empty;
// create the new property
var cmd = new CopyPropertyCommand(pcf, dependent.Type.Target);
CommandProcessor.InvokeSingleCommand(_context, cmd);
var fkey = cmd.Property;
// build up our list of keys
Debug.Assert(fkey != null, "CreateForeignKeyProperties was not able to create a foreign key");
if (fkey != null)
{
principalPropertyRefs.Add(pkey);
dependentPropertyRefs.Add(fkey);
}
}
// create the new RC
Debug.Assert(
principalPropertyRefs.Count == dependentPropertyRefs.Count,
"List of keys are mismatched while trying to create a Ref Constraint");
if (principalPropertyRefs.Count > 0 &&
dependentPropertyRefs.Count > 0 &&
principalPropertyRefs.Count == dependentPropertyRefs.Count)
{
var cmd = new CreateReferentialConstraintCommand(principal, dependent, principalPropertyRefs, dependentPropertyRefs);
CommandProcessor.InvokeSingleCommand(_context, cmd);
}
}
}
