public static IDictionary <PropertyInfo, PropertyInfo> GetSelectedProperty(Expression exp)
{
PropertyPairSelectorVisitor visitor = new PropertyPairSelectorVisitor();
visitor.Visit(exp);
return(visitor.Properties);
}
private NavigationPropertyConfiguration HasNavigationProperty <TTargetEntity, TPartner>(
Expression <Func <TStructuralType, TTargetEntity> > navigationPropertyExpression,
EdmMultiplicity multiplicity,
Expression <Func <TStructuralType, TTargetEntity, bool> > referentialConstraintExpression = null,
Expression <Func <TTargetEntity, TPartner> > partnerExpression = null,
Expression <Func <TStructuralType, TTargetEntity, bool> > partnerConstraintExpression = null) where TTargetEntity : class
{
var navigation =
GetOrCreateNavigationProperty(navigationPropertyExpression, multiplicity);
if (referentialConstraintExpression != null)
{
var referentialConstraints =
PropertyPairSelectorVisitor.GetSelectedProperty(referentialConstraintExpression);
foreach (var constraint in referentialConstraints)
{
navigation.HasConstraint(constraint);
}
}
if (partnerExpression != null)
{
var partnerMultiplicity = EdmMultiplicity.One;
if (typeof(IEnumerable).IsAssignableFrom(typeof(TPartner)))
{
partnerMultiplicity = EdmMultiplicity.Many;
}
navigation.Partner =
_configuration.ModelBuilder
.EntityType <TTargetEntity>()
.GetOrCreateNavigationProperty(
partnerExpression,
partnerMultiplicity);
_configuration
.ModelBuilder
.EntityType <TTargetEntity>()
.RemoveProperty(partnerExpression);
// ._configuration
// .RemoveProperty(navigation.Partner.PropertyInfo);
if (partnerConstraintExpression != null)
{
var partnerConstraints =
PropertyPairSelectorVisitor.GetSelectedProperty(partnerConstraintExpression);
foreach (var constraint in partnerConstraints)
{
navigation.Partner.HasConstraint(constraint);
}
}
}
return(navigation);
}
public NavigationPropertyConfiguration HasRequired <TTargetEntity>(
Expression <Func <TStructuralType, TTargetEntity> > navigationPropertyExpression,
Expression <Func <TStructuralType, TTargetEntity, bool> > referentialConstraintExpression) where TTargetEntity : class
{
NavigationPropertyConfiguration navigation =
GetOrCreateNavigationProperty(navigationPropertyExpression, EdmMultiplicity.One);
IDictionary <PropertyInfo, PropertyInfo> referentialConstraints =
PropertyPairSelectorVisitor.GetSelectedProperty(referentialConstraintExpression);
foreach (KeyValuePair <PropertyInfo, PropertyInfo> constraint in referentialConstraints)
{
navigation.HasConstraint(constraint);
}
return(navigation);
}
