public TargetEntitySqlModel(DataSyncSqlModel dataSyncSqlModel, Target dbsh, IShellContext context)
{
this._dataSyncSqlModel = dataSyncSqlModel;
this._dbsh = dbsh;
TargetTable = new NameWithSchema(context.Replace(dbsh.TableSchema), context.Replace(dbsh.TableName));
string findSchema = dbsh.TableSchema;
if (findSchema != null && findSchema.StartsWith(NameWithSchema.NoQuotePrefix)) findSchema = null;
Structure = dataSyncSqlModel.TargetStructure.FindTableLike(findSchema, TargetTable.Name);
SqlAlias = _dbsh.Alias ?? "dst_" + _dataSyncSqlModel.Entities.Count;
foreach (var col in dbsh.Columns)
{
var targetCol = new TargetNoRefColumnSqlModel(col, FindColumnInfo(col.Name));
TargetColumns.Add(targetCol);
foreach (string alias in ExtractColumnSources(col))
{
SourceColumnSqlModel source = null;
if (dataSyncSqlModel.SourceGraphModel == null)
{
// flat sync
if (!String.IsNullOrEmpty(dbsh.PrimarySource))
{
var tableSource = DataSync.FlatSources.FirstOrDefault(x => x.Match(Dbsh.PrimarySource));
if (tableSource != null)
{
source = tableSource.Columns.FirstOrDefault(x => x.Alias == alias);
}
}
}
else
{
source = dataSyncSqlModel.SourceGraphModel[alias];
//targetCol.Sources.Add(source);
}
RequiredSourceColumns.Add(source);
if (col.IsKey) KeySourceColumns.Add(source);
}
}
if (!String.IsNullOrEmpty(_dbsh.Connection))
{
var ctxConn = new NormalizedDatabaseConnectionInfo(new DatabaseConnectionInfoHolder { ProviderString = context.GetDefaultConnection() });
var tableConn = new NormalizedDatabaseConnectionInfo(new DatabaseConnectionInfoHolder { ProviderString = context.Replace(_dbsh.Connection), LinkedInfo = _dbsh.LinkedInfo });
if (ctxConn != tableConn)
{
if (ctxConn.ServerConnectionString == tableConn.ServerConnectionString)
{
TargetLinkedInfo = tableConn.GetLinkedInfo();
}
else
{
throw new IncorrectRdsDefinitionException($"DBSH-00000 RDS target must be reachable by database or linked server: ({TargetTable})");
}
}
}
}
public void InitializeQuerySource(ITabularDataSource dataSource, IShellContext context, string sourceTableVariable, string sourceQueryVariable)
{
if (!_dbsh.ForceExternalSource)
{
// try to create non-external source
var tableOrView = dataSource as DbShell.Core.Utility.TableOrView;
if (!String.IsNullOrEmpty(sourceTableVariable))
{
QuerySource = new DmlfSource
{
Alias = SqlAlias,
TableOrView = new NameWithSchema($"###({sourceTableVariable})###"),
};
TableName = new NameWithSchema(sourceTableVariable);
return;
}
if (!String.IsNullOrEmpty(sourceQueryVariable))
{
QuerySource = new DmlfSource
{
Alias = SqlAlias,
SubQueryString = $"###({sourceQueryVariable})###",
};
return;
}
if (tableOrView != null)
{
bool canUseTable = true;
LinkedDatabaseInfo linked = null;
var ctxConn = new NormalizedDatabaseConnectionInfo(new DatabaseConnectionInfoHolder { ProviderString = context.GetDefaultConnection() });
var tableConn = tableOrView.GetNormalizedConnectionInfo(context);
if (ctxConn != tableConn)
{
if (ctxConn.ServerConnectionString == tableConn.ServerConnectionString)
{
linked = tableConn.GetLinkedInfo();
}
else
{
canUseTable = false;
}
}
if (canUseTable)
{
TableName = tableOrView.GetFullName(context);
QuerySource = new DmlfSource
{
Alias = SqlAlias,
TableOrView = TableName,
LinkedInfo = linked,
};
return;
}
}
var query = dataSource as DbShell.Core.Query;
if (query != null && query.GetProviderString(context) == context.GetDefaultConnection())
{
string sql = context.Replace(query.Text);
QuerySource = new DmlfSource
{
Alias = SqlAlias,
SubQueryString = sql,
};
return;
}
}
IsExternal = true;
_externalDataName = new NameWithSchema(null, $"##{SqlAlias}_{new Random().Next(10000, 100000)}");
QuerySource = new DmlfSource
{
Alias = SqlAlias,
TableOrView = _externalDataName,
};
_dataSync.AddExternalSource(this);
}
