protected override void InvokeInternal(CommandProcessorContext cpc)
{
var service = cpc.EditingContext.GetEFArtifactService();
var artifact = service.Artifact;
// the model that we want to add the association to
var model = artifact.StorageModel();
// check for uniqueness
var assocName = Name;
var assocSetName = assocName;
if (UniquifyNames)
{
assocName = ModelHelper.GetUniqueName(typeof(Association), model, assocName);
assocSetName = ModelHelper.GetUniqueName(typeof(AssociationSet), model.FirstEntityContainer, assocName);
}
else
{
// check for uniqueness of the association name
string msg = null;
if (ModelHelper.IsUniqueName(typeof(Association), model, assocName, false, out msg) == false)
{
throw new InvalidOperationException(msg);
}
// check for uniqueness of the association set name
if (ModelHelper.IsUniqueName(typeof(AssociationSet), model.FirstEntityContainer, assocSetName, false, out msg) == false)
{
throw new InvalidOperationException(msg);
}
}
// create the new item in our model
var association = new Association(model, null);
association.LocalName.Value = assocName;
model.AddAssociation(association);
XmlModelHelper.NormalizeAndResolve(association);
// create the ends of the association
var fkEnd = new AssociationEnd(association, null);
fkEnd.Type.SetRefName(FkTable);
fkEnd.Role.Value = FkRoleNameOverride ?? ModelHelper.CreateFKAssociationEndName(FkTable.LocalName.Value);
if (FkMultiplicityOverride != null)
{
fkEnd.Multiplicity.Value = FkMultiplicityOverride;
}
else
{
fkEnd.Multiplicity.Value = DoesFkFormPk ? ModelConstants.Multiplicity_ZeroOrOne : ModelConstants.Multiplicity_Many;
}
association.AddAssociationEnd(fkEnd);
XmlModelHelper.NormalizeAndResolve(fkEnd);
var pkEnd = new AssociationEnd(association, null);
pkEnd.Type.SetRefName(PkTable);
pkEnd.Role.Value = PkRoleNameOverride ?? ModelHelper.CreatePKAssociationEndName(PkTable.LocalName.Value);
if (PkMultiplicityOverride != null)
{
pkEnd.Multiplicity.Value = PkMultiplicityOverride;
}
else
{
pkEnd.Multiplicity.Value = IsNullableFk ? ModelConstants.Multiplicity_ZeroOrOne : ModelConstants.Multiplicity_One;
}
association.AddAssociationEnd(pkEnd);
XmlModelHelper.NormalizeAndResolve(pkEnd);
var cmd = new CreateAssociationSetCommand(assocSetName, association, ModelSpace.Storage);
CommandProcessor.InvokeSingleCommand(cpc, cmd);
var set = cmd.AssociationSet;
Debug.Assert(set != null, "failed to create an AssociationSet");
Association = association;
_createdAssociationFkEnd = fkEnd;
_createdAssociationPkEnd = pkEnd;
}
protected override void InvokeInternal(CommandProcessorContext cpc)
{
var service = cpc.EditingContext.GetEFArtifactService();
var artifact = service.Artifact;
// the model that we want to add the association to
var model = artifact.ConceptualModel();
// check for uniqueness of the assocation and association set names
// if uniquifyNames is true then make them unique, otherwise throw
// an exception if they're not (always uniquify associationSetName
// regardless as we get bugs if not)
var assocName = Name;
var assocSetName = assocName;
if (UniquifyNames)
{
assocName = ModelHelper.GetUniqueName(typeof(Association), model, assocName);
assocSetName = ModelHelper.GetUniqueName(typeof(AssociationSet), model.FirstEntityContainer, assocName);
// ensure unique NavigationProperty names
if (ShouldCreateNavigationPropertyEnd1
&& !ModelHelper.IsUniquePropertyName(End1Entity, NavigationPropertyInEnd1Entity, true)
|| NavigationPropertyInEnd1Entity == End1Entity.LocalName.Value)
{
var namesToAvoid = new HashSet<string>();
namesToAvoid.Add(End1Entity.LocalName.Value);
namesToAvoid.Add(NavigationPropertyInEnd2Entity);
NavigationPropertyInEnd1Entity = ModelHelper.GetUniqueConceptualPropertyName(
NavigationPropertyInEnd1Entity, End1Entity, namesToAvoid);
}
if (ShouldCreateNavigationPropertyEnd2
&& !ModelHelper.IsUniquePropertyName(End2Entity, NavigationPropertyInEnd2Entity, true)
|| NavigationPropertyInEnd2Entity == End2Entity.LocalName.Value)
{
var namesToAvoid = new HashSet<string> { End2Entity.LocalName.Value, NavigationPropertyInEnd1Entity };
NavigationPropertyInEnd2Entity = ModelHelper.GetUniqueConceptualPropertyName(
NavigationPropertyInEnd2Entity, End2Entity, namesToAvoid);
}
}
else
{
assocSetName = ModelHelper.GetUniqueName(typeof(AssociationSet), model.FirstEntityContainer, assocName);
string msg = null;
if (!ModelHelper.IsUniqueName(typeof(Association), model, assocName, false, out msg))
{
throw new InvalidOperationException(msg);
}
else if (!ModelHelper.IsUniqueName(typeof(AssociationSet), model.FirstEntityContainer, assocSetName, false, out msg))
{
throw new InvalidOperationException(msg);
}
else if (ShouldCreateNavigationPropertyEnd1
&& (!ModelHelper.IsUniquePropertyName(End1Entity, NavigationPropertyInEnd1Entity, true)))
{
msg = string.Format(CultureInfo.CurrentCulture, Resources.NAME_NOT_UNIQUE, NavigationPropertyInEnd1Entity);
throw new InvalidOperationException(msg);
}
else if (ShouldCreateNavigationPropertyEnd2
&& (!ModelHelper.IsUniquePropertyName(End2Entity, NavigationPropertyInEnd2Entity, true)))
{
msg = string.Format(CultureInfo.CurrentCulture, Resources.NAME_NOT_UNIQUE, NavigationPropertyInEnd2Entity);
throw new InvalidOperationException(msg);
}
else if (NavigationPropertyInEnd1Entity == End1Entity.LocalName.Value)
{
msg = string.Format(
CultureInfo.CurrentCulture, Resources.NavPropNameSameAsContainer, NavigationPropertyInEnd1Entity);
throw new InvalidOperationException(msg);
}
else if (NavigationPropertyInEnd2Entity == End2Entity.LocalName.Value)
{
msg = string.Format(
CultureInfo.CurrentCulture, Resources.NavPropNameSameAsContainer, NavigationPropertyInEnd2Entity);
throw new InvalidOperationException(msg);
}
}
// create the new item in our model
var association = new Association(model, null);
association.LocalName.Value = assocName;
model.AddAssociation(association);
XmlModelHelper.NormalizeAndResolve(association);
// create the first end
_end1 = new AssociationEnd(association, null);
_end1.Type.SetRefName(End1Entity);
_end1.Role.Value = End1Entity.LocalName.Value;
_end1.Multiplicity.Value = End1Multiplicity;
association.AddAssociationEnd(_end1);
XmlModelHelper.NormalizeAndResolve(_end1);
// create the second end
_end2 = new AssociationEnd(association, null);
_end2.Type.SetRefName(End2Entity);
var endRoleValue = End2Entity.LocalName.Value;
if (_end1.Role.Value.Equals(endRoleValue))
{
// avoid duplicate Role values between the two ends. This will occur in self-associations.
// Appending "1" is consistent with how model-gen chooses a unique name.
endRoleValue = endRoleValue + "1";
}
_end2.Role.Value = endRoleValue;
_end2.Multiplicity.Value = End2Multiplicity;
association.AddAssociationEnd(_end2);
XmlModelHelper.NormalizeAndResolve(_end2);
// create the association set for this association
var cmd = new CreateAssociationSetCommand(assocSetName, association);
CommandProcessor.InvokeSingleCommand(cpc, cmd);
var set = cmd.AssociationSet;
Debug.Assert(set != null, "unable to create association set");
CreateNavigationPropertyCommand navcmd;
if (ShouldCreateNavigationPropertyEnd1)
{
navcmd = new CreateNavigationPropertyCommand(NavigationPropertyInEnd1Entity, End1Entity, association, _end1, _end2);
CommandProcessor.InvokeSingleCommand(cpc, navcmd);
}
if (ShouldCreateNavigationPropertyEnd2)
{
navcmd = new CreateNavigationPropertyCommand(NavigationPropertyInEnd2Entity, End2Entity, association, _end2, _end1);
CommandProcessor.InvokeSingleCommand(cpc, navcmd);
}
if (ShouldCreateForeignKeyProperties)
{
CreateForeignKeyProperties.AddRule(cpc, association);
}
CreatedAssociation = association;
}