public override object Clone()
{
var constraint = new DBConstraint()
{
Name = Name,
Type = Type,
Column = Column,
Value = Value,
};
foreach (var item in Columns)
{
constraint.Columns.Add(item.Clone());
}
return(constraint);
}
public override void InsertInternal(int index, T item)
{
if (Contains(item))
{
return;
}
if (Contains(item.Name))
{
throw new InvalidOperationException($"Columns name duplication {item.Name}");
}
// if (col.Order == -1 || col.Order > this.Count)
if (item.IsPrimaryKey && index > 1)
{
index = 1;
}
if (item.IsTypeKey)
{
index = 0;
}
item.Order = index;
base.InsertInternal(index, item);
if (item.IsPrimaryKey)
{
DBConstraint primary = null;
foreach (var constraint in Table.Constraints.GetByColumn(Table.PrimaryKey))
{
if (constraint.Type == DBConstraintType.Primary)
{
primary = constraint;
break;
}
}
if (primary == null && Table.PrimaryKey != null)
{
primary = new DBConstraint()
{
Column = Table.PrimaryKey, Type = DBConstraintType.Primary
};
primary.GenerateName();
Table.Constraints.Add(primary);
//Table.DefaultComparer = item.CreateComparer(); Commented for poerformance of Index creation
}
}
item.CheckPull();
}