private DataTable CachedLoadProgrammable(NameWithSchema obj)
{
var res = AnalyserCache.GetProgrammable(obj);
if (res != null)
{
return(res);
}
res = AnalyserCache.GetProgrammable(null);
if (res != null)
{
return(FilterProgrammable(res, obj));
}
if (LoadMoreSpecificObjects)
{
res = LoadProgrammableTable(null);
AnalyserCache.PutProgrammable(null, res);
return(FilterProgrammable(res, obj));
}
else
{
res = LoadProgrammableTable(obj);
AnalyserCache.PutProgrammable(obj, res);
return(res);
}
}
private TableAnalyser GetRefsTA()
{
var res = AnalyserCache.GetTableAnalyser("refs");
if (res != null)
{
return(res);
}
var ta = new TableAnalyser();
foreach (var row in CachedQueryRows(SqlScripts.getrefs))
{
var key = new TableAnalyser.Key();
key.keytype = "FOREIGN KEY";
key.deleterule = row.SafeString("DELETE_RULE");
key.keyname = row["FK_CONSTRAINT"].ToString();
key.tblname = row["FK_TABLE"].ToString();
key.tblschema = row["FK_OWNER"].ToString();
key.dstpkschema = row["R_OWNER"].ToString();
key.dstpkname = row["R_CONSTRAINT"].ToString();
key.dsttblschema = row["R_OWNER"].ToString();
key.dsttblname = row["R_TABLE"].ToString();
ta.keys.Add(key);
}
foreach (var row in CachedQueryRows(SqlScripts.getrefcols))
{
var col = new TableAnalyser.Col();
col.keytype = "FOREIGN KEY";
col.keyname = row["FK_CONSTRAINT"].ToString();
col.tblname = row["FK_TABLE"].ToString();
col.tblschema = row["FK_OWNER"].ToString();
col.colname = row["FK_COLUMN_NAME"].ToString();
col.dstcolname = row["R_COLUMN_NAME"].ToString();
ta.cols.Add(col);
}
AnalyserCache.PutTableAnalyser("refs", ta);
return(ta);
}
private TableAnalyser GetIndexesTA()
{
var res = AnalyserCache.GetTableAnalyser("indexes");
if (res != null)
{
return(res);
}
var ta = new TableAnalyser();
ta.AllowDeduceFromColumns = false;
foreach (var row in CachedQueryRows(SqlScripts.getindexes))
{
var key = new TableAnalyser.Key();
key.keytype = "INDEX";
key.keyname = row["INDEX_NAME"].ToString();
key.keyschema = row["TABLE_OWNER"].ToString();
key.tblname = row["TABLE_NAME"].ToString();
key.tblschema = row["TABLE_OWNER"].ToString();
key.keyisunique = row["UNIQUENESS"].SafeToString() == "UNIQUE";
ta.keys.Add(key);
}
foreach (var row in CachedQueryRows(SqlScripts.getindexcols))
{
var col = new TableAnalyser.Col();
col.keytype = "INDEX";
col.keyschema = row["USERNAME"].ToString();
col.keyname = row["INDEX_NAME"].ToString();
col.colname = row["COLUMN_NAME"].ToString();
col.ordinal = row["COLUMN_POSITION"].ToString();
ta.cols.Add(col);
}
AnalyserCache.PutTableAnalyser("indexes", ta);
return(ta);
}
private string CachedGetShowTable(string table)
{
string data = AnalyserCache.GetShowTable(table);
if (data == null)
{
using (DbCommand cmd = GetDbConn().CreateCommand())
{
cmd.CommandText = String.Format("SHOW CREATE TABLE `{0}`", table);
using (var reader = cmd.ExecuteReader())
{
if (!reader.Read())
{
throw new InternalError("DAE-00056 Error reading MySQL table, empty result of SHOW CREATE TABLE");
}
data = reader[1].SafeToString();
AnalyserCache.PutShowTable(table, data);
}
}
}
return(data);
}
