bool vdcd_extract_from_table( col_defs* defs, const VTable *my_table )
{
bool col_defs_found = false;
KNamelist *names;
rc_t rc = VTableListCol( my_table, &names );
DISP_RC( rc, "VTableListCol() failed" );
if ( rc == 0 )
{
const VCursor *my_cursor;
rc = VTableCreateCursorRead( my_table, &my_cursor );
DISP_RC( rc, "VTableCreateCursorRead() failed" );
if ( rc == 0 )
{
uint32_t n;
uint32_t found = 0;
rc = KNamelistCount( names, &n );
DISP_RC( rc, "KNamelistCount() failed" );
if ( rc == 0 )
{
uint32_t i;
for ( i = 0; i < n && rc ==0; ++i )
{
const char *col_name;
rc = KNamelistGet( names, i, &col_name );
DISP_RC( rc, "KNamelistGet() failed" );
if ( rc == 0 )
{
p_col_def def = vdcd_append_col( defs, col_name );
rc = VCursorAddColumn( my_cursor, &(def->idx), def->name );
DISP_RC( rc, "VCursorAddColumn() failed" );
if ( rc == 0 )
{
rc = VCursorDatatype( my_cursor, def->idx,
&(def->type_decl), &(def->type_desc) );
DISP_RC( rc, "VCursorDatatype() failed" );
if ( rc == 0 )
{
found++;
}
}
}
}
col_defs_found = ( found > 0 );
}
rc = VCursorRelease( my_cursor );
DISP_RC( rc, "VCursorRelease() failed" );
}
rc = KNamelistRelease( names );
DISP_RC( rc, "KNamelistRelease() failed" );
}
return col_defs_found;
}
static
bool HasData(const VTable* tbl)
{
bool ret = false;
KNamelist *names;
if (VTableListCol(tbl, &names) == 0)
{
uint32_t n;
ret = KNamelistCount( names, &n ) == 0 && n > 0;
}
KNamelistRelease( names );
return ret;
}
/* ListCol
* returns a list of simple column names
* each name represents at least one typed column
*
* "names" [ out ] - return parameter for names list
*/
LIB_EXPORT rc_t CC SRATableListCol( const SRATable *self, SRANamelist **rslt ) {
if ( self != NULL )
return VTableListCol ( self -> vtbl, (KNamelist **)rslt );
return RC(rcSRA, rcTable, rcListing, rcSelf, rcName);
}
