Ezequias Rodrigues da Rocha wrote:
This is delphi. I don't intent you understand but the sql actions are quite
simple (I am reading a list of numbers).
Well, let's see - the last Pascal I did was in 1986 I think...
If not dm.database1.InTransaction then
dm.database1.StartTransaction;
For i:= 0 to memo1.Lines.Count - 1 do
Loop through your import.
Begin
// Catching ID
dm.qQ1.SQL.text:= Concat('select id from base.cartao where
numero = ', memo1.lines[i]);
dm.qQ1.open;
cartaoID:= dm.qQ1.fieldByName('id').asString;
// Cathing the ticket ID
OK, you're fetching ticket IDs one at a time.
dm.qQ1.SQL.clear;
dm.qQ1.SQL.text:= Concat('select nextval(',QuotedStr('
base.ingresso_id') , ')');
dm.qQ1.open;
IngressoID:= dm.qQ1.fieldByName('nextval').asString;
And now you've generated a new ID from a sequence.
// $$$$$$$$$$ Recording Tickets $$$$$$$$$$
dm.Qq1.sql.text:= Concat('Insert into base.ingresso values ('
, QuotedStr(IngressoID), ',' , EstadoID, ',' , 'now()', ',' , valor, ',' ,
valor_promotor, ',' , AssentoID, ',', CaixaID, ',' , CartaoID, ',' ,
PromocaoID, ',' , SessaoID, ',' , VendedorID, ')');
// Showmessage(dm.Qq1.sql.text);
dm.Qq1.execSQL;
Insert one row into "ingresso".
// ########### Recording Tickets ###########
// Pegando o Id do Bilhete no PostgreSQL
dm.qQ1.SQL.clear;
dm.qQ1.SQL.text:= Concat('select nextval(',QuotedStr('
base.bilhete_id') , ')');
dm.qQ1.open;
BilheteID:= dm.qQ1.fieldByName('nextval').asString;
dm.qQ1.SQL.clear;
dm.qQ1.SQL.add(Concat('Insert into base.bilhete (id, estado,
uso_sequencia, promocao_documento, assento_id, cartao_id, ingresso_id,
promocao_id, sessao_id, vendedor_venda_id )'));
dm.qQ1.SQL.add(Concat('values(', BilheteID, ',' ,
QuotedStr(EstadoID), ',' , '0,0', ',' , QuotedStr(AssentoID), ',' ,
QuotedStr(CartaoID), ',' , QuotedStr(IngressoID) , ',' ,
QuotedStr(PromocaoID), ',' , QuotedStr(SessaoID) , ',' ,
QuotedStr(VendedorID), ')' ) );
dm.qQ1.execSQL;
Insert a row into "bilhete".
end;
I don't see anything like "dm.database1.CommitTransaction" - are you
sure you are committing after the inserts?
One other point - if Delphi doesn't offer something like it, you might
find it useful to write a function that makes it easier to build queries:
my_db_func('INSERT INTO foo (id,a,b,c) VALUES (?,?,?,?)',
'NUM,TEXT,DATE,DATE',
variable1,variable2,variable3...);
I'd be surprised if there wasn't something like that already though.
--
Richard Huxton
Archonet Ltd
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