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 MaxPrimaryKeyCreator(IDataLayer dbConnection, string database,
string tableName, string fieldName, FieldBlank<int> primaryKeyField)
{
this.dbConnection = dbConnection;
this.database = database;
this.tableName = tableName;
this.fieldName = fieldName;
this.primaryKeyField = primaryKeyField;
}
public StandartPrimaryKeyCreator(IDataLayer dbConnection, string primaryKeyTableName, int reservationStep,
string tableName, FieldBlank<int> primaryKeyField)
{
this.dbConnection = dbConnection;
this.primaryKeyTableName = primaryKeyTableName;
this.reservationStep = reservationStep;
this.tableName = tableName;
this.primaryKeyField = primaryKeyField;
}
public static TableLink Load(IDataLayer dbConnection, FieldBlank[] fields, IndexBlank[] indices,
string database, string select, string conditionWithoutWhere, params DbParameter[] conditionParameters)
{
return new TableLink(
new ReadonlyTableProvider(
dbConnection.GetTable(database,
StringHlp.IsEmpty(conditionWithoutWhere) ? select : string.Format("{0} Where {1}", select, conditionWithoutWhere),
conditionParameters
)
), null, fields, indices
);
}
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(DataTable table, FieldBlank[] fields, IndexBlank[] indices) :
this(new ReadonlyTableProvider(table), null, fields, indices)
{
}
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)
{
}
public FieldLink(FieldBlank fieldBlank, int columnIndex, bool isIndicesPart)
{
this.FieldBlank = fieldBlank;
this.ColumnIndex = columnIndex;
this.IsIndicesPart = isIndicesPart;
}
