public TObjectType AddNew()
{
TObjectType obj = CSObject <TObjectType> .New();
Add(obj);
return(obj);
}
internal override void AddFromPrefetch(CSObject csObject)
{
csObject.Fire_ObjectReading();
((TObjectType)csObject).ObjectDeleted += OnObjectDeleted;
_objectArray.Add((TObjectType)csObject);
csObject.Fire_ObjectRead();
}
private List <TObjectType> GetObjects(string sqlQuery, CSParameterCollection parameters, Dictionary <string, string> aliasMap, IEnumerable <PrefetchField> prefetchFields)
{
using (CSTransaction csTransaction = new CSTransaction(Schema))
{
List <TObjectType> objectList = new List <TObjectType>();
using (ICSDbReader reader = DB.CreateReader(sqlQuery, parameters))
{
while (reader.Read())
{
TObjectType csObject = CSObject <TObjectType> .New();
csObject.Fire_ObjectReading();
csObject.FromDataReader(reader, aliasMap);
foreach (PrefetchField prefetchField in prefetchFields)
{
csObject.ReadRelationToOne(prefetchField.SchemaField, reader, prefetchField.AliasMap);
}
if (FilterPredicate != null)
{
bool shouldAdd = true;
foreach (Predicate <TObjectType> predicate in FilterPredicate.GetInvocationList())
{
if (!predicate(csObject))
{
shouldAdd = false;
break;
}
}
if (!shouldAdd)
{
continue;
}
}
csObject.ObjectDeleted += OnObjectDeleted;
objectList.Add(csObject);
csObject.Fire_ObjectRead();
}
}
csTransaction.Commit();
return(objectList);
}
}
public object GetScalar(string fieldName, CSAggregate aggregate, string filterExpression, CSParameterCollection filterParameters)
{
string tableAlias = CSNameGenerator.NextTableAlias;
CSFilter queryFilter = Filter.And(BuildRelationFilter(tableAlias));
if (!string.IsNullOrEmpty(filterExpression))
{
queryFilter = queryFilter.And(filterExpression, filterParameters);
}
return(CSObject <TObjectType> .GetScalar(fieldName, tableAlias, aggregate, queryFilter));
}
internal CSFieldValueCollection(CSObject csObject)
{
foreach (CSSchemaField schemaField in csObject.Schema.Fields)
{
CSFieldValue fieldValue = new CSFieldValue(csObject, schemaField);
_list.Add(fieldValue);
if (fieldValue.SchemaField.HasProperty)
{
_map[fieldValue.SchemaField.Name] = fieldValue;
}
if (fieldValue.SchemaField.MappedColumn != null)
{
_map["#" + fieldValue.SchemaField.MappedColumn.Name] = fieldValue;
}
}
}
private void Populate()
{
if (Populated)
{
return;
}
if (Relation != null && RelationObject != null && Relation.RelationType == CSSchemaRelationType.OneToMany && RelationObject.IsNew)
{
_objectArray = new List <TObjectType>();
Populated = true;
return;
}
CSTable table = new CSTable(Schema);
//string mainAlias = CSHelper.NextTableAlias;
List <string> columnList = new List <string>(Schema.ColumnsToRead.Count);
List <string> aliasList = new List <string>(Schema.ColumnsToRead.Count);
Dictionary <string, string> aliasMap = new Dictionary <string, string>(StringComparer.OrdinalIgnoreCase);
foreach (string columnName in Schema.ColumnsToRead)
{
string alias = CSNameGenerator.NextFieldAlias;
columnList.Add(table.TableAlias + "." + columnName);
aliasList.Add(alias);
aliasMap.Add(alias, columnName);
}
CSJoinList filterJoins = new CSJoinList();
List <PrefetchField> prefetchFields = CSObject.GetPrefetchFieldsOne(table, columnList, aliasList, filterJoins, PrefetchPaths);
CSFilter whereFilter;
if (PrefetchFilter != null)
{
whereFilter = new CSFilter(DB.QuoteField(table.TableAlias + "." + PrefetchFilter.ForeignKey) + " in (" + PrefetchFilter.InStatement + ")", PrefetchFilter.Parameters);
}
else
{
string parsedFilterExpression = CSExpressionParser.ParseFilter(Filter.Expression, Schema, table.TableAlias, filterJoins);
whereFilter = new CSFilter(parsedFilterExpression, Filter.Parameters);
CSFilter relationFilter = BuildRelationFilter(table.TableAlias);
whereFilter = whereFilter.And(CSExpressionParser.ParseFilter(relationFilter.Expression, Schema, table.TableAlias, filterJoins), relationFilter.Parameters);
}
string parsedOrderBy = CSExpressionParser.ParseOrderBy(OrderBy, Schema, table.TableAlias, filterJoins);
string sqlQuery = DB.BuildSelectSQL(table.TableName, table.TableAlias, columnList.ToArray(), aliasList.ToArray(), filterJoins.BuildJoinExpressions(), whereFilter.Expression, parsedOrderBy, StartRecord, MaxRecords, true, false);
_objectArray = GetObjects(sqlQuery, whereFilter.Parameters, aliasMap, prefetchFields);
if (Schema.KeyColumns.Count == 1)
{
string columnName = Schema.KeyColumns[0].Name;
_objectMap = new Dictionary <object, TObjectType>();
foreach (TObjectType csObject in _objectArray)
{
_objectMap.Add(csObject.Data["#" + columnName].Value, csObject);
}
}
foreach (CSSchemaField prefetchField in GetPrefetchFieldsMany())
{
CSRelation relation = prefetchField.Relation;
Dictionary <object, TObjectType> prefetchMap = new Dictionary <object, TObjectType>();
// Creates empty lists in each object of this list
foreach (TObjectType csObject in _objectArray)
{
prefetchMap[csObject.Data["#" + relation.LocalKey].Value] = csObject;
CSList relationCollection = (CSList)Activator.CreateInstance(prefetchField.FieldType);
relationCollection.Relation = relation;
relationCollection.RelationObject = csObject;
relationCollection.InitializePrefetch();
csObject.Data[prefetchField.Name].ValueDirect = relationCollection;
csObject.Data[prefetchField.Name].ValueState = CSFieldValueState.Read;
}
Type objectType = relation.ForeignSchema.ClassType;
CSList csList = (CSList)Activator.CreateInstance(typeof(CSList <>).MakeGenericType(objectType));
//string prefetchTableAlias = CSNameGenerator.NextTableAlias;
string prefetchFilter = DB.BuildSelectSQL(table.TableName, table.TableAlias, new[] { table.TableAlias + "." + relation.LocalKey }, new[] { CSNameGenerator.NextFieldAlias }, filterJoins.BuildJoinExpressions(), whereFilter.Expression, parsedOrderBy, StartRecord, MaxRecords, true, true);
csList.PrefetchFilter = new PrefetchFilter(relation.ForeignKey, prefetchFilter, whereFilter.Parameters);
if (PrefetchPaths != null && PrefetchPaths.Length > 0)
{
List <string> newPrefetchPaths = new List <string>();
foreach (string path in PrefetchPaths)
{
if (path.StartsWith(prefetchField.Name + "."))
{
newPrefetchPaths.Add(path.Substring(prefetchField.Name.Length + 1));
}
}
if (newPrefetchPaths.Count > 0)
{
csList.PrefetchPaths = newPrefetchPaths.ToArray();
}
}
foreach (CSObject csObject in csList)
{
object localKey = csObject.Data["#" + relation.ForeignKey].ValueDirect;
CSList relationCollection = (CSList)prefetchMap[localKey].Data[prefetchField.Name].ValueDirect;
relationCollection.AddFromPrefetch(csObject);
}
}
Populated = true;
}
internal override void Remove(CSObject obj)
{
Remove((TObjectType)obj);
}
public void Insert(int index, CSObject value)
{
throw new NotSupportedException("Insert() not supported for CSList");
}
internal abstract void AddFromPrefetch(CSObject obj);
internal abstract void Remove(CSObject obj);
internal CSFieldValue(CSObject objectData, CSSchemaField schemaField)
{
_csObject = objectData;
_schemaField = schemaField;
}
