/// <summary>
/// Asynchronously produces a base model.
/// </summary>
/// <param name="context">
/// The model context.
/// </param>
/// <param name="cancellationToken">
/// A cancellation token.
/// </param>
/// <returns>
/// A task that represents the asynchronous
/// operation whose result is the base model.
/// </returns>
public Task <IEdmModel> GetModelAsync(
InvocationContext context,
CancellationToken cancellationToken)
{
Ensure.NotNull(context, "context");
var model = new EdmModel();
var dbContext = context.GetApiService <DbContext>();
var elementMap = new Dictionary <IAnnotatable, IEdmElement>();
var entityTypes = dbContext.Model.GetEntityTypes();
string namespaceName = CalcNamespace(dbContext, entityTypes);
var entityContainer = new EdmEntityContainer(
namespaceName, "Container");
Dictionary <Type, PropertyInfo> dbSetProperties = GetDbSetPropeties(dbContext);
// TODO GitHubIssue#36 : support complex and entity inheritance
foreach (var efEntityType in entityTypes)
{
if (elementMap.ContainsKey(efEntityType))
{
continue;
}
List <EdmStructuralProperty> concurrencyProperties;
var entityType = ModelProducer.CreateEntityType(
efEntityType, model, out concurrencyProperties);
model.AddElement(entityType);
PropertyInfo propInfo;
if (dbSetProperties.TryGetValue(efEntityType.ClrType, out propInfo))
{
var entitySet = entityContainer.AddEntitySet(propInfo.Name, entityType);
if (concurrencyProperties != null)
{
model.SetOptimisticConcurrencyAnnotation(entitySet, concurrencyProperties);
}
}
elementMap.Add(efEntityType, entityType);
}
CreateNavigations(entityContainer, entityTypes, elementMap);
// TODO GitHubIssue#36 : support function imports
model.AddElement(entityContainer);
return(Task.FromResult <IEdmModel>(model));
}
/// <summary>
/// Asynchronously produces a base model.
/// </summary>
/// <param name="context">
/// The model context.
/// </param>
/// <param name="cancellationToken">
/// A cancellation token.
/// </param>
/// <returns>
/// A task that represents the asynchronous
/// operation whose result is the base model.
/// </returns>
public Task <IEdmModel> GetModelAsync(
InvocationContext context,
CancellationToken cancellationToken)
{
var model = new EdmModel();
var domainContext = context.ApiContext;
var dbContext = domainContext.GetApiService <DbContext>();
var elementMap = new Dictionary <IAnnotatable, IEdmElement>();
var efModel = dbContext.Model;
var namespaceName = efModel.EntityTypes
.Select(t => t.HasClrType() ? t.ClrType.Namespace : null)
.Where(t => t != null)
.GroupBy(nameSpace => nameSpace)
.Select(group => new
{
NameSpace = group.Key,
Count = group.Count(),
})
.OrderByDescending(nsItem => nsItem.Count)
.Select(nsItem => nsItem.NameSpace)
.FirstOrDefault();
if (namespaceName == null)
{
// When dbContext has not a namespace, just use its type name as namespace.
namespaceName = dbContext.GetType().Namespace ?? dbContext.GetType().Name;
}
var entityTypes = efModel.EntityTypes;
var entityContainer = new EdmEntityContainer(
namespaceName, "Container");
var dbSetProperties = dbContext.GetType()
.GetProperties(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance)
.Where(e => e.PropertyType.IsGenericType &&
e.PropertyType.GetGenericTypeDefinition() == typeof(DbSet <>))
.ToDictionary(e => e.PropertyType.GetGenericArguments()[0]);
// TODO GitHubIssue#36 : support complex and entity inheritance
foreach (var efEntityType in entityTypes)
{
if (elementMap.ContainsKey(efEntityType))
{
continue;
}
List <EdmStructuralProperty> concurrencyProperties;
var entityType = ModelProducer.CreateEntityType(
efModel, efEntityType, model, out concurrencyProperties);
model.AddElement(entityType);
elementMap.Add(efEntityType, entityType);
System.Reflection.PropertyInfo propInfo;
if (dbSetProperties.TryGetValue(efEntityType.ClrType, out propInfo))
{
var entitySet = entityContainer.AddEntitySet(propInfo.Name, entityType);
if (concurrencyProperties != null)
{
model.SetOptimisticConcurrencyAnnotation(entitySet, concurrencyProperties);
}
}
}
foreach (var efEntityType in entityTypes)
{
foreach (var navi in efEntityType.GetNavigations())
{
ModelProducer.AddNavigationProperties(
efModel, navi, model, elementMap);
ModelProducer.AddNavigationPropertyBindings(
efModel, navi, entityContainer, elementMap);
}
}
// TODO GitHubIssue#36 : support function imports
model.AddElement(entityContainer);
return(Task.FromResult <IEdmModel>(model));
}