|
public static CreateFullName ( |
||
| request | ||
| Результат | string | |
protected static string GetFromStatement(StandardProviderParameters std, tgDynamicQuerySerializable query)
{
IDynamicQuerySerializableInternal iQuery = query as IDynamicQuerySerializableInternal;
string sql = String.Empty;
if (iQuery.InternalFromQuery == null)
{
sql = Shared.CreateFullName(query);
if (iQuery.JoinAlias != " ")
{
sql += " " + iQuery.JoinAlias;
}
}
else
{
IDynamicQuerySerializableInternal iSubQuery = iQuery.InternalFromQuery as IDynamicQuerySerializableInternal;
iSubQuery.IsInSubQuery = true;
sql += "(";
sql += BuildQuery(std, iQuery.InternalFromQuery);
sql += ")";
if (iSubQuery.SubQueryAlias != " ")
{
sql += " AS " + iSubQuery.SubQueryAlias;
}
iSubQuery.IsInSubQuery = false;
}
return(sql);
}
protected static string GetJoinStatement(StandardProviderParameters std, tgDynamicQuerySerializable query)
{
string sql = String.Empty;
IDynamicQuerySerializableInternal iQuery = query as IDynamicQuerySerializableInternal;
if (iQuery.InternalJoinItems != null)
{
foreach (tgJoinItem joinItem in iQuery.InternalJoinItems)
{
tgJoinItem.tgJoinItemData joinData = (tgJoinItem.tgJoinItemData)joinItem;
switch (joinData.JoinType)
{
case tgJoinType.InnerJoin:
sql += " INNER JOIN ";
break;
case tgJoinType.LeftJoin:
sql += " LEFT JOIN ";
break;
case tgJoinType.RightJoin:
sql += " RIGHT JOIN ";
break;
case tgJoinType.FullJoin:
sql += " FULL JOIN ";
break;
}
IDynamicQuerySerializableInternal iSubQuery = joinData.Query as IDynamicQuerySerializableInternal;
sql += Shared.CreateFullName((tgProviderSpecificMetadata)iSubQuery.ProviderMetadata);
sql += " " + iSubQuery.JoinAlias + " ON ";
sql += GetComparisonStatement(std, query, joinData.WhereItems, String.Empty);
}
}
return(sql);
}
