private SQLScriptList ToSQLChangeColumns()
{
var fields = new Hashtable();
var list = new SQLScriptList();
var listDependencys = new SQLScriptList();
if ((Status == Enums.ObjectStatusType.AlterStatus) || (Status == Enums.ObjectStatusType.RebuildStatus))
{
foreach (ObjectDependency dependency in Dependencys)
{
ISchemaBase itemDepens = ((Database)Parent).Find(dependency.Name);
/*Si la dependencia es una funcion o una vista, reconstruye el objecto*/
if (dependency.IsCodeType)
{
if (itemDepens != null)
{
list.AddRange(((ICode)itemDepens).Rebuild());
}
}
/*Si la dependencia es una tabla, reconstruye los indices, constraint y columnas asociadas*/
if (dependency.Type == Enums.ObjectType.Table)
{
Column column = ((Table)itemDepens).Columns[dependency.ColumnName];
if ((column.Parent.Status != Enums.ObjectStatusType.DropStatus) &&
(column.Parent.Status != Enums.ObjectStatusType.CreateStatus) &&
((column.Status != Enums.ObjectStatusType.CreateStatus) || (column.IsComputed)))
{
if (!fields.ContainsKey(column.FullName))
{
listDependencys.AddRange(RebuildDependencys((Table)itemDepens));
if (column.HasToRebuildOnlyConstraint)
{
//column.Parent.Status = Enums.ObjectStatusType.AlterRebuildDependenciesStatus;
list.AddRange(column.RebuildDependencies());
}
if (!column.IsComputed)
{
list.AddRange(column.RebuildConstraint(true));
list.Add(
"ALTER TABLE " + column.Parent.FullName + " ALTER COLUMN " +
column.ToSQLRedefine(Type, Size, null) + "\r\nGO\r\n", 0,
Enums.ScripActionType.AlterColumn);
/*Si la columna va a ser eliminada o la tabla va a ser reconstruida, no restaura la columna*/
if ((column.Status != Enums.ObjectStatusType.DropStatus) &&
(column.Parent.Status != Enums.ObjectStatusType.RebuildStatus))
{
list.AddRange(column.Alter(Enums.ScripActionType.AlterColumnRestore));
}
}
else
{
if (column.Status != Enums.ObjectStatusType.CreateStatus)
{
if (!column.GetWasInsertInDiffList(Enums.ScripActionType.AlterColumnFormula))
{
column.SetWasInsertInDiffList(Enums.ScripActionType.AlterColumnFormula);
list.Add(column.ToSqlDrop(), 0, Enums.ScripActionType.AlterColumnFormula);
List <ISchemaBase> drops =
((Database)column.Parent.Parent).Dependencies.Find(column.Parent.Id,
column.Id, 0);
drops.ForEach(item =>
{
if (item.Status != Enums.ObjectStatusType.CreateStatus)
{
list.Add(item.Drop());
}
if (item.Status != Enums.ObjectStatusType.DropStatus)
{
list.Add(item.Create());
}
});
/*Si la columna va a ser eliminada o la tabla va a ser reconstruida, no restaura la columna*/
if ((column.Status != Enums.ObjectStatusType.DropStatus) &&
(column.Parent.Status != Enums.ObjectStatusType.RebuildStatus))
{
list.Add(column.ToSqlAdd(), 0,
Enums.ScripActionType.AlterColumnFormulaRestore);
}
}
}
}
fields.Add(column.FullName, column.FullName);
}
}
}
}
}
list.AddRange(listDependencys);
return(list);
}
public ColumnConstraint(Column parent)
: base(parent, Enums.ObjectType.Constraint)
{
}
