public static ManyToManyNavigationPropertyConfiguration WithMany <TEntityType, TTargetEntityType>(this ManyNavigationPropertyConfiguration <TEntityType, TTargetEntityType> many, string propertyName)
where TEntityType : class
where TTargetEntityType : class
{
// NB: this cast will blow up at runtime (i.e. during entity mapper setup) if the nominated property is not of type ICollection<TTargetEntityType>
return(many.WithMany((Expression <Func <TTargetEntityType, ICollection <TEntityType> > >) typeof(TTargetEntityType).GetPropertyAccessExpression(propertyName)));
}
public ManyNavigationPropertyConfigurationWrapper(ManyNavigationPropertyConfiguration <TEntity, TTargetEntity> manyNavigationPropertyConfiguration)
{
this.manyNavigationPropertyConfiguration = manyNavigationPropertyConfiguration;
}
/// <summary>
/// Extension method for map inverse of many navigation property
/// </summary>
/// <typeparam name="TEntityType">The parent of parent in relation and the inverse in this method</typeparam>
/// <typeparam name="TTargetEntityType">The target in many:required</typeparam>
/// <param name="manyNavigationPropertyConfiguration">The navigation property configuration</param>
/// <param name="navigationPropertyName">The property name</param>
/// <returns>A DependentNavigationPropertyConfiguration for this many:required navigation </returns>
public static DependentNavigationPropertyConfiguration <TTargetEntityType> WithRequired <TEntityType, TTargetEntityType>(this ManyNavigationPropertyConfiguration <TEntityType, TTargetEntityType> manyNavigationPropertyConfiguration, string navigationPropertyName)
where TEntityType : class
where TTargetEntityType : class
{
var propertyInfo = typeof(TTargetEntityType).GetProperty(navigationPropertyName,
BindingFlags.NonPublic |
BindingFlags.Instance |
BindingFlags.Public);
if (propertyInfo != null) // if private property exists
{
ParameterExpression arg = Expression.Parameter(typeof(TTargetEntityType), "parameterName");
MemberExpression memberExpression = Expression.Property((Expression)arg, propertyInfo);
//Create the expression to map
Expression <Func <TTargetEntityType, TEntityType> > expression = (Expression <Func <TTargetEntityType, TEntityType> >)Expression.Lambda(memberExpression, arg);
return(manyNavigationPropertyConfiguration.WithRequired(expression));
}
else
{
throw new InvalidOperationException("The property not exist");
}
}
