/// <summary>
/// Adds a foreign key with a single column
/// </summary>
/// <param name="databaseColumn">The database column.</param>
/// <param name="foreignKeyName">Name of the foreign key.</param>
/// <param name="foreignTableName">Name of the foreign table.</param>
/// <returns></returns>
public static DatabaseColumn AddForeignKey(this DatabaseColumn databaseColumn,
string foreignKeyName,
string foreignTableName)
{
return(AddForeignKey(databaseColumn, foreignKeyName, foreignTableName, null));
}
/// <summary>
/// Adds the column.
/// </summary>
/// <param name="databaseConstraint">The database constraint.</param>
/// <param name="databaseColumn">The database column.</param>
/// <returns></returns>
/// <exception cref="System.ArgumentNullException">databaseConstraint</exception>
public static DatabaseConstraint AddColumn(this DatabaseConstraint databaseConstraint, DatabaseColumn databaseColumn)
{
if (databaseConstraint == null)
{
throw new ArgumentNullException("databaseConstraint");
}
if (databaseColumn == null)
{
throw new ArgumentNullException("databaseColumn");
}
if (databaseColumn.TableName != databaseConstraint.TableName)
{
throw new InvalidOperationException("Constraint and column must belong to same table");
}
databaseConstraint.Columns.Add(databaseColumn.Name);
switch (databaseConstraint.ConstraintType)
{
case ConstraintType.ForeignKey:
databaseColumn.IsForeignKey = true;
databaseColumn.ForeignKeyTableName = databaseConstraint.RefersToTable;
break;
case ConstraintType.PrimaryKey:
databaseColumn.IsPrimaryKey = true;
break;
case ConstraintType.UniqueKey:
databaseColumn.IsUniqueKey = true;
break;
}
return(databaseConstraint);
}
/// <summary>
/// Adds a foreign key with a single column (without a name)
/// </summary>
/// <param name="databaseColumn">The database column.</param>
/// <param name="foreignTableName">Name of the foreign table.</param>
/// <returns></returns>
public static DatabaseColumn AddForeignKey(this DatabaseColumn databaseColumn, string foreignTableName)
{
return(databaseColumn.AddForeignKey(null, foreignTableName));
}
/// <summary>
/// Makes this column a unique key.
/// </summary>
/// <param name="databaseColumn">The database column.</param>
/// <returns></returns>
public static DatabaseColumn AddUniqueKey(this DatabaseColumn databaseColumn)
{
return(databaseColumn.AddUniqueKey(null));
}
/// <summary>
/// Makes this column the primary key (or part of a composite key)
/// </summary>
/// <param name="databaseColumn">The database column.</param>
/// <returns></returns>
public static DatabaseColumn AddPrimaryKey(this DatabaseColumn databaseColumn)
{
return(databaseColumn.AddPrimaryKey(null));
}
