internal static List<Bookmark> GetBookmarksForDisplay()
{
SqlFilter filter = new SqlFilter(typeof(Bookmark));
filter.AddConstraint("islocaldeleted", false);
// return...
return filter.ExecuteEntityCollection<Bookmark>();
}
private void InitializeCurrentSet()
{
if (Keys == null)
{
throw new InvalidOperationException("Keys is null.");
}
if (KeyField == null)
{
throw new InvalidOperationException("KeyFields is null.");
}
// build some ids...
ArrayList ids = new ArrayList();
while (this.CurrentMasterPosition < this.Keys.Length && ids.Count < PageSize)
{
// add the current master position...
ids.Add(this.Keys[this.CurrentMasterPosition][0]);
// next...
this.CurrentMasterPosition++;
}
// do we have anything?
IList newSet = this.EntityType.CreateCollectionInstance();
if (ids.Count > 0)
{
// create a statement to load that lot...
SqlFilter filter = new SqlFilter(this.EntityType);
// if the master defines fields, we'll need the same ones...
if (this.Source.Fields.Count > 0)
{
// add the fields - but we need to know if the key field is in there...
bool keyFound = false;
foreach (EntityField field in this.Source.Fields)
{
// found it?
if (field == this.KeyField)
{
keyFound = true;
}
// add it...
filter.Fields.Add(field);
}
// key? we'll need that to get the items in the right order...
if (!(keyFound))
{
filter.Fields.Add(this.KeyField);
}
}
// build some sql...
StringBuilder builder = new StringBuilder();
builder.Append(filter.Dialect.FormatColumnName(this.KeyField.Name));
builder.Append(" in (");
for (int index = 0; index < ids.Count; index++)
{
if (index > 0)
{
builder.Append(", ");
}
builder.Append(filter.Dialect.FormatVariableNameForQueryText(filter.ExtraParameters.Add(this.KeyField.DBType, ids[index])));
}
builder.Append(")");
// add...
filter.Constraints.AddFreeConstraint(builder.ToString());
// run it...
IList newEntities = filter.ExecuteEntityCollection();
if (newEntities == null)
{
throw new InvalidOperationException("newEntities is null.");
}
// comparer...
IComparer comparer = ComparerBase.GetComparer(this.KeyField.DBType, Cultures.System);
if (comparer == null)
{
throw new InvalidOperationException("comparer is null.");
}
// we now have to get the data in the right order...
object[] entities = new object[ids.Count];
for (int index = 0; index < ids.Count; index++)
{
// find it in the data set...
foreach (object newEntity in newEntities)
{
object[] newKeys = this.EntityType.Storage.GetKeyValues(newEntity);
if (newKeys == null)
{
throw new InvalidOperationException("newKeys is null.");
}
if (newKeys.Length != 1)
{
throw new InvalidOperationException("New keys length is invalid.");
}
// check...
if (comparer.Compare(ids[index], newKeys[0]) == 0)
{
entities[index] = newEntity;
break;
}
}
}
// create a new set from the ordered set...
foreach (object entity in entities)
{
if (entity != null)
{
newSet.Add(entity);
}
else
{
switch (Mode)
{
// do nothing if skip missing...
case OptimisticReadMode.SkipMissing:
break;
// add null in...
case OptimisticReadMode.ThrowIfMissing:
throw new InvalidOperationException("Item in keyset could not be found in the database.");
default:
throw new NotSupportedException(string.Format("Cannot handle '{0}' ({1}).", Mode, Mode.GetType()));
}
}
}
}
// update...
_currentSet = newSet;
// position...
_currentSetPosition = 0;
}
//public static PagedDataResult<T> ToDtos<T>(this IEnumerable<IDtoCapable> items, PagedDataRequest request)
// where T : IDtoBase
//{
// throw new NotImplementedException("This operation has not been implemented.");
//}
public static List <T> ToDtos <T>(this IEnumerable <IDtoCapable> items)
where T : IDtoBase
{
var dtoType = DtoType.InferDtoType(items);
// get...
using (var conn = Database.CreateConnection(dtoType.ConcreteEntityType))
{
conn.BeginTransaction();
try
{
var dtos = new List <T>();
foreach (var item in items)
{
dtos.Add(item.ToDto <T>());
}
// next -- preload any linked data that we can find...
foreach (var link in dtoType.Links)
{
var map = new Dictionary <long, IDtoBase>();
foreach (var dto in dtos)
{
// get...
var parentId = dto.GetValue <long>(link.ReferenceField);
if (parentId != 0 && !(map.ContainsKey(parentId)))
{
map[parentId] = null;
}
}
// load everything up...
var pages = Runtime.Current.GetPages(map.Keys, 500);
foreach (var page in pages)
{
var filter = new SqlFilter(link.Link.ParentEntityType);
var keyField = link.Link.ParentEntityType.GetKeyFields()[0];
filter.Constraints.AddValueListConstraint(keyField, page);
// add...
var gots = filter.ExecuteEntityCollection();
foreach (IDtoCapable got in gots)
{
var id = ConversionHelper.ToInt64(filter.EntityType.Storage.GetValue(got, keyField));
if (map.ContainsKey(id))
{
map[id] = got.ToDto();
}
}
}
// go back and fill them in...
foreach (var dto in dtos)
{
var parentId = dto.GetValue <long>(link.ReferenceField);
if (parentId != 0)
{
dto.SetLink(link, map[parentId]);
}
}
}
// ok...
conn.Commit();
// return...
return(dtos);
}
catch (Exception ex)
{
conn.Rollback();
throw new InvalidOperationException("The operation failed", ex);
}
}
}
