public SchemaConstraintLoader(SchemaExtendedReader schemaReader)
{
_sr = schemaReader;
var pks = _sr.PrimaryKeys(null);
_noPks = (pks.Rows.Count == 0);
if (!_noPks)
{
_pkConverter = new SchemaConstraintConverter(pks, ConstraintType.PrimaryKey);
}
var fks = _sr.ForeignKeys(null);
_noFks = (fks.Rows.Count == 0);
if (!_noFks)
{
_fkConverter = new SchemaConstraintConverter(fks, ConstraintType.ForeignKey);
}
//foreign key columns
var fkcols = _sr.ForeignKeyColumns(null);
_fkColumnConverter = new ForeignKeyColumnConverter(fkcols);
var uks = _sr.UniqueKeys(null);
_ukConverter = new SchemaConstraintConverter(uks, ConstraintType.UniqueKey);
var cks = _sr.CheckConstraints(null);
_ckConverter = new SchemaConstraintConverter(cks, ConstraintType.Check);
var dfs = _sr.DefaultConstraints(null);
_dfConverter = new SchemaConstraintConverter(dfs, ConstraintType.Default);
}
public SchemaConstraintLoader(SchemaExtendedReader schemaReader)
{
_sr = schemaReader;
var pks = _sr.PrimaryKeys(null);
_noPks = (pks.Rows.Count == 0);
if (!_noPks)
{
_pkConverter = new SchemaConstraintConverter(pks, ConstraintType.PrimaryKey);
}
var fks = _sr.ForeignKeys(null);
_noFks = (fks.Rows.Count == 0);
if (!_noFks)
{
_fkConverter = new SchemaConstraintConverter(fks, ConstraintType.ForeignKey);
}
//foreign key columns
var fkcols = _sr.ForeignKeyColumns(null);
_fkColumnConverter = new ForeignKeyColumnConverter(fkcols);
var uks = _sr.UniqueKeys(null);
_ukConverter = new SchemaConstraintConverter(uks, ConstraintType.UniqueKey);
var cks = _sr.CheckConstraints(null);
_ckConverter = new SchemaConstraintConverter(cks, ConstraintType.Check);
var dfs = _sr.DefaultConstraints(null);
_dfConverter = new SchemaConstraintConverter(dfs, ConstraintType.Default);
}
public override IList <DatabaseConstraint> ForeignKeys(string tableName)
{
var dt = _schemaReader.ForeignKeys(tableName);
var fkcols = _schemaReader.ForeignKeyColumns(tableName);
var converter = new SchemaConstraintConverter(dt, ConstraintType.ForeignKey);
var fks = converter.Constraints();
var fkColumnConverter = new ForeignKeyColumnConverter(fkcols);
fkColumnConverter.AddForeignKeyColumns(fks);
return(fks);
}
private IList <DatabaseConstraint> ForeignKeys(string tableName, string schemaName)
{
IList <DatabaseConstraint> fks;
if (!_noFks)
{
//we have preloaded
fks = _fkConverter.Constraints(tableName, schemaName);
_fkColumnConverter.AddForeignKeyColumns(fks);
return(fks);
}
var constraints = _sr.ForeignKeys(tableName);
var converter = new SchemaConstraintConverter(constraints, ConstraintType.ForeignKey);
fks = converter.Constraints();
var cols = _sr.ForeignKeyColumns(tableName);
var colConverter = new ForeignKeyColumnConverter(cols);
colConverter.AddForeignKeyColumns(fks);
return(fks);
}
