/// <summary>
/// Gets a cannonical definition of the field.
/// </summary>
public string GetDefinition()
{
var result = string.Format("{0} {1}", _name, _dataType.ToString());
if (_dataType == DbDataType.Char || _dataType == DbDataType.VarChar || _dataType == DbDataType.Decimal)
{
result = string.Format("{0}({1})", result, _length.ToString());
}
if (_dataType == DbDataType.Enum)
{
result = string.Format("{0}({1})", result, _enumValues);
}
if (_notNull)
{
result = result + " NOT NULL";
}
if (_unsigned && _dataType.IsDbDataTypeInteger())
{
result = result + " UNSIGNED";
}
if (_autoincrement && _dataType.IsDbDataTypeInteger())
{
result = result + " AUTOINCREMENT";
}
if (_indexType == DbIndexType.Primary)
{
result = result + " PRIMARY KEY";
}
if (_collationType == DbFieldCollationType.ASCII_Binary)
{
result = result + " COLLATE ascii_bin";
}
else if (_collationType == DbFieldCollationType.ASCII_CaseInsensitive)
{
result = result + " COLLATE ascii_ci";
}
if (_indexType == DbIndexType.Simple)
{
result = string.Format("{0} INDEX {1}", result, _indexName);
}
if (_indexType == DbIndexType.Unique)
{
result = string.Format("{0} UNIQUE INDEX {1}", result, _indexName);
}
if (_indexType == DbIndexType.ForeignKey || _indexType == DbIndexType.ForeignPrimary)
{
result = string.Format(
"{0} FOREIGN KEY {1} REFERENCES {2}({3}) ON UPDATE {4} ON DELETE {5}",
result, _indexName, _refTable, _refField, _onUpdateForeignKey.ToString().ToUpperInvariant(),
_onDeleteForeignKey.ToString().ToUpperInvariant());
}
return(result);
}
/// <summary>
/// Gets the mysql native foreign index change action type.
/// </summary>
/// <param name="actionType">the canonical foreign index change action type to translate</param>
internal static string GetNativeActionType(this DbForeignKeyActionType actionType)
{
switch (actionType)
{
case DbForeignKeyActionType.Restrict:
return("RESTRICT");
case DbForeignKeyActionType.Cascade:
return("CASCADE");
case DbForeignKeyActionType.SetNull:
return("SET NULL");
default:
throw new NotImplementedException(string.Format(Properties.Resources.EnumValueNotImplementedException,
actionType.ToString()));
}
}