public static ColumnDefinitionOptions FromOption(ColumnDefinitionOptions option, params string[] primaryKey)
{
var o = option.Clone();
o.PrimaryKey = primaryKey.ToList();
return(o);
}
public static ColumnDefinition FromFieldType(Type type, string name, ColumnDefinitionOptions options = null)
{
var opt = options ?? ColumnDefinitionOptions.Default;
bool isPrimaryKey = opt.PrimaryKey?.Contains(name) ?? false;
if (type.Equals(typeof(bool)))
{
return(new ColumnDefinition(name, "bit", isPrimaryKey, 0, 0, 0, false));
}
else if (type.Equals(typeof(bool?)))
{
return(new ColumnDefinition(name, "bit", isPrimaryKey, 0, 0, 0, true));
}
if (type.Equals(typeof(byte)))
{
return(new ColumnDefinition(name, "tinyint", isPrimaryKey, 0, 0, 0, false));
}
else if (type.Equals(typeof(byte?)))
{
return(new ColumnDefinition(name, "tinyint", isPrimaryKey, 0, 0, 0, true));
}
if (type.Equals(typeof(short)))
{
return(new ColumnDefinition(name, "smallint", isPrimaryKey, 0, 0, 0, false));
}
else if (type.Equals(typeof(short?)))
{
return(new ColumnDefinition(name, "smallint", isPrimaryKey, 0, 0, 0, true));
}
if (type.Equals(typeof(int)))
{
return(new ColumnDefinition(name, "int", isPrimaryKey, 0, 0, 0, false));
}
else if (type.Equals(typeof(int?)))
{
return(new ColumnDefinition(name, "int", isPrimaryKey, 0, 0, 0, true));
}
if (type.Equals(typeof(long)))
{
return(new ColumnDefinition(name, "bigint", isPrimaryKey, 0, 0, 0, false));
}
else if (type.Equals(typeof(long?)))
{
return(new ColumnDefinition(name, "bigint", isPrimaryKey, 0, 0, 0, true));
}
if (type.Equals(typeof(float)))
{
return(new ColumnDefinition(name, "real", isPrimaryKey, 0, 0, 0, false));
}
else if (type.Equals(typeof(float?)))
{
return(new ColumnDefinition(name, "real", isPrimaryKey, 0, 0, 0, true));
}
if (type.Equals(typeof(double)))
{
return(new ColumnDefinition(name, "float", isPrimaryKey, 0, 0, 0, false));
}
else if (type.Equals(typeof(double?)))
{
return(new ColumnDefinition(name, "float", isPrimaryKey, 0, 0, 0, true));
}
if (type.Equals(typeof(decimal)))
{
return(new ColumnDefinition(name, "decimal", isPrimaryKey, 0, opt.Precision, opt.Scale, false));
}
else if (type.Equals(typeof(decimal?)))
{
return(new ColumnDefinition(name, "decimal", isPrimaryKey, 0, opt.Precision, opt.Scale, true));
}
if (type.Equals(typeof(Guid)))
{
return(new ColumnDefinition(name, "uniqueidentifier", isPrimaryKey, 0, 0, 0, false));
}
else if (type.Equals(typeof(Guid?)))
{
return(new ColumnDefinition(name, "uniqueidentifier", isPrimaryKey, 0, 0, 0, true));
}
if (type.Equals(typeof(DateTime)))
{
return(new ColumnDefinition(name, "datetime2", isPrimaryKey, 0, 0, opt.DateTimeScale, false));
}
else if (type.Equals(typeof(DateTime?)))
{
return(new ColumnDefinition(name, "datetime2", isPrimaryKey, 0, 0, opt.DateTimeScale, true));
}
if (type.Equals(typeof(string)))
{
return(new ColumnDefinition(name, "nvarchar", isPrimaryKey, opt.StringMaxLength, 0, 0, true));
}
if (type.Equals(typeof(byte[])))
{
return(new ColumnDefinition(name, "varbinary", isPrimaryKey, opt.BytesMaxLength, 0, 0, true));
}
if (opt.ThrowIfUnsupportedType)
{
throw new ArgumentOutOfRangeException(nameof(type), type, "Unsupported type");
}
return(null);
}
public static string CreateTableScript <T>(T proto, string tableName, bool checkIfNotExists = false,
ColumnDefinitionOptions options = null, FromTypeOption fromTypeOption = FromTypeOption.Default)
{
return(CreateTableScript <T>(tableName, checkIfNotExists, options, fromTypeOption));
}
public static string CreateTableScript <T>(string tableName, bool checkIfNotExists = false,
ColumnDefinitionOptions options = null, FromTypeOption fromTypeOption = FromTypeOption.Default)
{
return(FieldSettings.FromType <T>(fromTypeOption).GetColumnDefinitions(options).CreateTableScript(tableName, checkIfNotExists));
}
public static IEnumerable <ColumnDefinition> GetColumnDefinitions <T>(this IEnumerable <FieldSettings <T> > fieldSettings, ColumnDefinitionOptions options = null)
{
foreach (var item in fieldSettings)
{
yield return(ColumnDefinition.FromFieldType(item.FieldType, item.Name, options));
}
}
public static string GetCreateTableScript <T>(this IEnumerable <T> values, string tableName, bool checkIfNotExists = false,
ColumnDefinitionOptions options = null, FromTypeOption fromTypeOption = FromTypeOption.Default)
{
return(GetColumnDefinitions(values, options, fromTypeOption).CreateTableScript(tableName, checkIfNotExists));
}
public static IEnumerable <ColumnDefinition> GetColumnDefinitions <T>(this IEnumerable <T> values, ColumnDefinitionOptions options = null,
FromTypeOption fromTypeOption = FromTypeOption.Default)
{
return(values.GetFieldSettings(fromTypeOption).GetColumnDefinitions(options));
}
public static IEnumerable <ColumnDefinition> GetColumnDefinitions(this IDataReader reader, ColumnDefinitionOptions options = null, bool ignoreSchemaTable = false)
{
if (reader is DbDataReader && !ignoreSchemaTable)
{
var sqlReader = (DbDataReader)reader;
var schema = sqlReader.GetColumnSchema();
var optionKeys = options?.PrimaryKey?.ToArray() ?? new string[0];
foreach (var row in schema)
{
string name = row.ColumnName;
yield return(new ColumnDefinition()
{
Name = name,
TypeName = row.DataTypeName,
IsPrimaryKey = row.IsKey ?? optionKeys.Contains(name),
MaxLength = checked ((short)((row.IsLong ?? false) ? -1 : (row.ColumnSize ?? -1))),
Precision = checked ((byte)(row.NumericPrecision ?? 0)),
Scale = checked ((byte)(row.NumericScale ?? 0)),
IsNullable = row.AllowDBNull ?? false
});
}
}
else
{
for (int i = 0; i < reader.FieldCount; i++)
{
Type type = reader.GetFieldType(i);
string name = reader.GetName(i);
yield return(ColumnDefinition.FromFieldType(type, name, options));
}
}
}
