public virtual void GetForeignKeys(MetaInfoTables tables)
{
foreach (MetaInfoTable table in tables)
{
table.ForeignKeys.Clear();
foreach (DataRow row in SelectData(GetForeignKeysSql(table)).Rows)
{
string persistentSchema = row[SqlColName_FKTableSchema].ToString();
string persistentName = row[SqlColName_ConstraintName].ToString();
MetaInfoForeignKey fk = table.ForeignKeys.FindByPersistentName(persistentSchema, persistentName, false);
if (fk == null)
{
string msg = String.Format("Importing FK: {0}...", MetaInfoBase.MakeFullName(persistentSchema, persistentName));
fk = new MetaInfoForeignKey();
fk.PersistentSchema = persistentSchema;
fk.PersistentName = persistentName;
fk.Child = table;
string parentTableSchema = row[SqlColName_FKParentTableSchema].ToString();
string parentTableName = row[SqlColName_FKParentTableName].ToString();
fk.Parent = tables.FindByPersistentName(parentTableSchema, parentTableName, false);
if (fk.Parent != null)
{
table.ForeignKeys.Add(fk);
fk.Name = fk.Parent.Name;
Logger.TraceLine("{0}OK", msg);
}
else
{
Logger.TraceLine("{0}Ignored (parent table {1} was not imported)", msg, MetaInfoBase.MakeFullName(parentTableSchema, parentTableName));
}
}
if (fk.Child != null && fk.Parent != null)
{
MetaInfoColumnsMatch cm = new MetaInfoColumnsMatch();
cm.Child = fk.Child.Columns.FindByPersistentName(row[SqlColName_ColumnName].ToString(), true);
cm.Parent = fk.Parent.Columns.FindByPersistentName(row[SqlColName_FKParentColumnName].ToString(), true);
fk.ColumnsMatches.Add(cm);
}
Logger.ProgressStep();
}
// Renaming duplicates in FK names
foreach (MetaInfoForeignKey fk in table.ForeignKeys)
{
int count = 1;
foreach (MetaInfoForeignKey fk2 in table.ForeignKeys)
{
if (fk != fk2 && fk.Name == fk2.Name)
{
fk2.Name = String.Format("{0}{1}", fk.Name, count++);
}
}
}
}
}
public T FindByPersistentName(string schema, string name, bool throwException)
{
T o = null;
persistentNames.TryGetValue(MetaInfoBase.MakeFullName(schema, name), out o);
if (o == null && throwException)
{
throw new GlException("Item with persistent name not found: {0} ({1})", name, typeof(T).Name);
}
return(o);
}