public static TableLink LoadTableLink(IDataLayer dbConnection, IPrimaryKeyCreator primaryKeyCreator,
FieldBlank[] fields, IndexBlank[] indicies,
string database, string select, string conditionWithoutWhere, params DbParameter[] conditionParameters)
{
return LoadTableLink(dbConnection, primaryKeyCreator, fields, indicies, new LinkConstraint[0],
database, select, conditionWithoutWhere, conditionParameters);
}
public static TableLink LoadTableLink(IDataLayer dbConnection, IPrimaryKeyCreator primaryKeyCreator,
FieldBlank[] fields, IndexBlank[] indicies, LinkConstraint[] constraints,
string database, string select, string conditionWithoutWhere, params DbParameter[] conditionParameters)
{
TableLink link = new TableLink(
new DatabaseTableProvider(dbConnection, database, select, conditionWithoutWhere, conditionParameters),
primaryKeyCreator, fields, indicies, constraints);
if (primaryKeyCreator != null)
link.Table.PrimaryKey = new DataColumn[] { link.Table.Columns[0] };
return link;
}
public TableLink(ITableProvider tableProvider, IPrimaryKeyCreator primaryKeyCreator,
FieldBlank[] fields, IndexBlank[] indicies, params LinkConstraint[] constraints)
{
this.tableProvider = tableProvider;
if (tableProvider.Table.Columns.Count != fields.Length)
throw new Exception("Ошибка создания TableLink: число колонок таблицы не равно числу полей");
this.primaryKeyCreator = primaryKeyCreator;
this.indicies = indicies;
this.constraints = constraints;
Dictionary<string, bool> isIndicesPartByName = new Dictionary<string, bool>();
foreach (IndexBlank index in indicies)
{
if (index.IsMultiIndex)
multiIndicesByName[index.IndexName] = new Dictionary<UniversalKey, List<RowLink>>();
else
singleIndicesByName[index.IndexName] = new Dictionary<UniversalKey, RowLink>();
foreach (string fieldName in index.IndexColumns)
isIndicesPartByName[fieldName] = true;
//fieldsByName[fieldName].IsIndicesPart = true;
}
int columnIndex = 0;
foreach (FieldBlank fieldBlank in fields)
{
fieldsByName[fieldBlank.FieldName] = new FieldLink(fieldBlank, columnIndex,
DictionaryHlp.GetValueOrDefault(isIndicesPartByName, fieldBlank.FieldName));
columnIndex++;
}
foreach (DataRow dataRow in tableProvider.Table.Rows)
{
if (dataRow.RowState != DataRowState.Deleted)
CreateIndexForRow(new RowLink(this, dataRow));
}
}
public TableLink(IDataLayer dbConnection, string database, DataTable table, string updateQuery,
IPrimaryKeyCreator primaryKeyCreator, FieldBlank[] fields, IndexBlank[] indicies, params LinkConstraint[] constraints) :
this(new DatabaseTableProvider(dbConnection, database, updateQuery, table),
primaryKeyCreator, fields, indicies, constraints)
{
}
