public static Entity AddEntity <TEntity>()
{
var entity = new Entity(typeof(TEntity));
EntitiesTypes.Add(entity);
return(entity);
}
public void AddType <T>() where T : IDbEntity
{
Type type = typeof(T);
if (EntitiesTypes.Contains(type))
{
return;
}
EntitiesTypes.Add(type);
IndexTracker.Add(type, 0);
HashSet <IDbEntity> hashset = new HashSet <IDbEntity>(new DbEntityComparer <IDbEntity>());
Database.Add(type, hashset);
}
public static Entity GetEntity(string entityName)
{
return(EntitiesTypes.FirstOrDefault(x => x.Name == entityName));
}
public static void SetForeignKeysReferences()
{
foreach (var entity in EntitiesTypes)
{
// Try determine which property is a entity key if is not set
if (entity.Key.IsNullOrEmpty())
{
var entityKey = entity.Properties.FirstOrDefault(x => x.Name.ToLower() == "id");
if (entityKey == null)
{
entityKey = entity.Properties.FirstOrDefault(x => x.Name.ToLower() == entity.Name.ToLower() + "id");
if (entityKey == null)
{
throw new Exception("Entity does not have a defined key");
}
}
entityKey.IsKey = true;
if (entity.LinkKey == null)
{
entityKey.IsLinkKey = true;
}
}
}
foreach (var entity in EntitiesTypes)
{
foreach (var property in entity.Properties)
{
if (property.IsForeignKey)
{
property.ForeignEntity = EntitiesTypes.FirstOrDefault(x => x.Name == property.ForeignEntityName);
if (!property.ReferencePropertyName.IsNullOrEmpty())
{
property.ReferenceProperty = entity.Properties.FirstOrDefault(x => x.Name == property.ReferencePropertyName);
if (property.ReferenceProperty != null)
{
property.ReferenceProperty.IsForeignKey = true;
property.ReferenceProperty.ForeignEntity = property.ForeignEntity;
property.ReferenceProperty.ReferenceProperty = property;
}
else if (!property.TypeInfo.IsSystemType)
{
if (property.ForeignEntity != null)
{
property.TypeInfo.Type = property.ForeignEntity.Key.FirstOrDefault().TypeInfo.Type;
}
else
{
// by default foreign property is int
property.TypeInfo.Type = typeof(int);
}
}
}
}
}
foreach (var property in entity.Properties)
{
property.Template = new PropertyTemplate(
property.Attributes,
property.TypeInfo,
property.IsForeignKey);
}
entity.SetColumns();
entity.SetLinkKey();
entity.PrepareGroups();
}
}
