private static IEntityMetaData FromEdmx(IObjectContextAdapter contextAdapter, Type entityType)
{
List<SchemaInfo> schemas = new List<SchemaInfo>();
MetadataWorkspace mw = contextAdapter.ObjectContext.MetadataWorkspace;
EntityType et = mw.GetItems<EntityType>(DataSpace.CSpace).FirstOrDefault(e => String.Equals(e.Name, entityType.Name));
if (null != et)
{
foreach (EdmProperty edmProperty in et.Properties)
{
SchemaInfo schema = new SchemaInfo(edmProperty.Name);
schema.DataType = Type.GetType("System." + edmProperty.TypeUsage.EdmType.Name);
ReadOnlyMetadataCollection<Facet> facets = edmProperty.TypeUsage.Facets;
Facet facet;
if (facets.TryGetValue("Nullable", true, out facet))
{
schema.IsNullable = (bool)facet.Value;
}
if (facets.TryGetValue("MaxLength", true, out facet))
{
schema.MaxLength = (int)facet.Value;
}
schemas.Add(schema);
}
foreach (EdmMember keyInfo in et.KeyMembers)
{
schemas.First(s => s.ColumnName == keyInfo.Name).IsKey = true;
}
if (et.KeyMembers.Count == 1)
{
SchemaInfo key = schemas.First(s => s.IsKey);
if (key.DataType != CachedTypes.Guid)
key.DatabaseGeneratedOption = Data.StoreGeneratedPattern.Identity;
}
if (schemas.Count != 0)
{
EntityMetaData ret = new EntityMetaData(entityType, entityType.Name);
foreach (SchemaInfo schema in schemas)
{
ret.Add(schema, entityType.GetProperty(schema.ColumnName));
}
return ret;
}
}
return null;
}
public IEntityMetaData CreateEntityMetaData(Type entityType)
{
lock (syncRoot)
{
Type derivedType = this.GetType();
Dictionary<Type, IEntityMetaData> tempCache;
if (!_cache.TryGetValue(derivedType, out tempCache))
{
tempCache = new Dictionary<Type, IEntityMetaData>();
_cache.Add(derivedType, tempCache);
}
IEntityMetaData metaData;
if (!tempCache.TryGetValue(entityType, out metaData))
{
int order = 0;
EntityMetaData temp = new EntityMetaData(entityType);
foreach (PropertyInfo pi in entityType.GetProperties(BindingFlags.Public | BindingFlags.Instance))
{
++order;
SchemaInfo schema = this.FromPropertyInfo(pi);
if (null == schema) //NotMapped.
continue;
schema.Order = order; //Order parametere isimlarine ardışıklık için çok önemli. Oyüzden base de atamasını yaptık.
schema.Lock();
temp.Add(schema, pi);
}
this.SetExtendedMetaData(temp);
tempCache.Add(entityType, temp);
metaData = temp;
}
return metaData;
}
}