/// <summary>
/// Converts an entity's id to the corresponding database one
/// </summary>
/// <param name="generator">The <seealso cref="GeneratorMapping.GeneratorType"/> used in the mapping for the entity</param>
/// <param name="id">The entity's id to convert</param>
/// <returns>A database generated id or the entity's one</returns>
private string ConvertId(GeneratorMapping generator, string id)
{
switch (generator.Name)
{
// Returns the database generated Id instead of the internal one
case GeneratorMapping.GeneratorType.native:
case GeneratorMapping.GeneratorType.business:
case GeneratorMapping.GeneratorType.assigned:
if (_NewIds.ContainsKey(id))
return _NewIds[id];
return id;
// Returns the internal entity's id
case GeneratorMapping.GeneratorType.guid:
return id;
case GeneratorMapping.GeneratorType.inherited:
return id;
throw new NotImplementedException("GeneratorMapping.GeneratorType.inherited"); /// TODO : Implement behaviour for GeneratorType.inherited
default:
return id;
}
}
private void AddForeignKeysTo(CreateTableSQLCommand table, string columnName, string ref_column_name, string ref_table_name, GeneratorMapping map_generator, object defaultValue)
{
if (!table.ColumnDefinitions.Contains(columnName))
{
DbType type = _Dialect.GetDbTypeToPrimaryKey(map_generator);
SqlObjectModel.LDD.ColumnConstraint constraint = null;
if (defaultValue != null)
constraint = new SqlObjectModel.LDD.DefaultConstraint(new Constant(defaultValue, type), false);
else
constraint = new SqlObjectModel.LDD.ColumnConstraint(true);
int size = _Dialect.GetSizeToPrimaryKey(map_generator);
ColumnDefinition column = new ColumnDefinition(columnName, type, size, constraint);
table.ColumnDefinitions.Add(columnName, column);
// Add foreign keys here
}
}
private void AddPrimaryKeysTo(CreateTableSQLCommand table, string columnName, GeneratorMapping map_generator)
{
if (!table.ColumnDefinitions.Contains(columnName))
{
DbType type;
try
{
type = _Dialect.GetDbTypeToPrimaryKey(map_generator);
}
catch (NullReferenceException ex)
{
throw new MappingNotFoundException(string.Format("The type is not defined for the field {0} in the table {1}", columnName, table.TableName));
}
int size = _Dialect.GetSizeToPrimaryKey(map_generator);
ColumnDefinition column = new ColumnDefinition(columnName, type, size);
if (map_generator.Name == GeneratorMapping.GeneratorType.native)
{
int seed = map_generator.GetParam("seed") != null ? Convert.ToInt32(map_generator.GetParam("seed").Value) : 1;
int increment = map_generator.GetParam("increment") != null ? Convert.ToInt32(map_generator.GetParam("increment").Value) : 1;
column.EnableAutoIncrement(increment, seed);
}
table.ColumnDefinitions.Add(columnName, column);
if (table.PrimaryKey == null)
table.PrimaryKey = new PrimaryKey(String.Concat("PK_", table.TableName), new ColumnDefinition[] { column });
else
table.PrimaryKey.Columns.Add(column);
}
else
{
if (map_generator.Name == GeneratorMapping.GeneratorType.business)
{
ColumnDefinition column = table.ColumnDefinitions[columnName] as ColumnDefinition;
if (table.PrimaryKey == null)
table.PrimaryKey = new PrimaryKey(String.Concat("PK_", table.TableName), new ColumnDefinition[] { column });
else
{
if (!table.PrimaryKey.Columns.Contains(column))
table.PrimaryKey.Columns.Add(column);
}
}
}
}
private ParameterDirection GetParameterDirectionToId(GeneratorMapping.GeneratorType generator)
{
switch (generator)
{
case GeneratorMapping.GeneratorType.native:
return ParameterDirection.Output;
case GeneratorMapping.GeneratorType.business:
case GeneratorMapping.GeneratorType.guid:
case GeneratorMapping.GeneratorType.assigned:
default:
return ParameterDirection.Input;
}
}
public override DbType GetDbTypeToPrimaryKey(GeneratorMapping generator)
{
if (generator.Name == GeneratorMapping.GeneratorType.guid)
return DbType.String;
return base.GetDbTypeToPrimaryKey(generator);
}
public int GetSizeToPrimaryKey(GeneratorMapping generator)
{
switch (generator.Name)
{
case GeneratorMapping.GeneratorType.assigned:
ParamMapping param = generator.GetParam("size");
if (param == null)
throw new SqlMapperException("Property 'size' is missing in Id Generator Mapping");
return Int32.Parse(param.Value);
case GeneratorMapping.GeneratorType.guid:
return 36;
case GeneratorMapping.GeneratorType.native:
param = generator.GetParam("size");
if (param != null)
return Int32.Parse(param.Value);
else
return 36;
case GeneratorMapping.GeneratorType.business:
param = generator.GetParam("size");
if (param != null)
return Int32.Parse(param.Value);
else
return 0;
case GeneratorMapping.GeneratorType.inherited:
GeneratorMapping tmp = generator;
if (generator.Params == null)
return 36;
if (generator.Params.Length == 1)
tmp.Name = GeneratorMapping.GeneratorType.assigned;
if (generator.Params.Length > 1)
tmp.Name = GeneratorMapping.GeneratorType.native;
return GetSizeToPrimaryKey(tmp);
}
return 0;
}
public virtual DbType GetDbTypeToPrimaryKey(GeneratorMapping generator)
{
switch(generator.Name)
{
case GeneratorMapping.GeneratorType.assigned:
ParamMapping param = generator.GetParam(DBTYPE);
return (DbType) Enum.Parse(typeof(DbType), param.Value);
case GeneratorMapping.GeneratorType.business:
ParamMapping pbiz = generator.GetParam(DBTYPE);
return (DbType) Enum.Parse(typeof(DbType), pbiz.Value);
case GeneratorMapping.GeneratorType.guid:
return DbType.AnsiString;
case GeneratorMapping.GeneratorType.native:
StringDictionary dico = new StringDictionary();
foreach(ParamMapping p in generator.Params)
{
dico.Add(p.Name, p.Value);
}
return GetDbTypeToNativeGenerator(dico);
case GeneratorMapping.GeneratorType.inherited:
GeneratorMapping tmp = generator;
if(generator.Params == null)
return DbType.AnsiString;
if(generator.Params.Length == 1)
tmp.Name = GeneratorMapping.GeneratorType.assigned;
if(generator.Params.Length > 1)
tmp.Name = GeneratorMapping.GeneratorType.native;
return GetDbTypeToPrimaryKey(tmp);
}
return DbType.Object;
}
