QMYSQL && libmysql.dll bug handhabung und loesung!

Code-Schnippsel, oder Tipps und Tricks, die einem beim Programmieren mit Qt helfen können.
Antworten
patrik08
Beiträge: 746
Registriert: 27. Februar 2006 11:48
Wohnort: DE Freiburg

QMYSQL && libmysql.dll bug handhabung und loesung!

Beitrag von patrik08 » 19. November 2008 15:39

Zur zeit schreibe ich ein LocalPath-Cocoon aus der idee von http://cocoon.apache.org/ java sowie Popoon http://wiki.flux-cms.org/display/FLX/Popoon as PHP da beide als server arbeiten .... mache ich das selbe auf local ordner um automatisch dokumente zu generieren pdf,opendocument, xml transformation u.n.s.w.. mit pipe command.

Am ende kann ich super dokumente herstellen wie Crystal Reports 2008, oder serie briefen as xslt seit qt4.5 geht dass prima, oder sqltabellen zu xml excel 2008 convertieren, die man als normale excel aufmachen kann.
Beispiel code unten...

Dabei bemerkte ich wenn man mehrere QSqlDatabase mysql verbindungen macht kommt immer am schluss ein fehler :
my_thread_global_end() 3 thread not exit ... was der selbe fehler ist wie php version 5 mit mysql version 5
zum lesen bei...
http://www.google.ch/search?q=my_thread_global_end

um diesen fehler nicht mehr zu bekommen einfach die libmysql.dll in libmysql.old umbenennen

und mit http://ppk.ciz.ch/win_build/new_dll/libmysql.dll ersetzen

die fehler dll hat 2MB die korrekte funktionierende dll 1.4 MB
dabei muss man qt nicht neu bauen .. eben nur die dll austauschen.


beispiel sqlquery zu excel xml dass mit OpenOffice oder Excel normal auf geht..

Code: Alles auswählen


/*  excel xml 2008 reformat from sql query */
QByteArray xmlexcel2008( const  QString query , const  QString connection_name )
{
    bool isopen = false;
    QString tablename("Table1");
    QStringList m_header;
    QSqlQueryModel *mod;
    
    QSqlDatabase db = QSqlDatabase::database(connection_name,&isopen);
    if (!isopen) 
        db.open();
    
    
    if (db.isOpen()) {
        mod = new QSqlQueryModel();
        mod->setQuery(query,db); 
    }
    
    QString excelNS,xsiNS,xNS,x2NS,oNS,htmlNS,cNS ;
    excelNS = QString("urn:schemas-microsoft-com:office:spreadsheet");
    xsiNS = QString("http://www.w3.org/2001/XMLSchema-instance");
    xNS = QString("urn:schemas-microsoft-com:office:excel");
    x2NS = QString("http://schemas.microsoft.com/office/excel/2003/xml");
    oNS = QString("urn:schemas-microsoft-com:office:office");
    htmlNS = QString("http://www.w3.org/TR/REC-html40");
    cNS = QString("urn:schemas-microsoft-com:office:component:spreadsheet");
    QBuffer *d = new QBuffer();
    d->open(QIODevice::ReadWrite);
    QXmlStreamWriter writer( d );
    writer.setCodec("UTF-8");
    writer.setAutoFormatting(true);
    writer.setAutoFormattingIndent(0);
    
    writer.writeNamespace(xsiNS,QString::fromLatin1("xsi"));
    writer.writeNamespace(xNS,QString::fromLatin1("x"));
    writer.writeNamespace(x2NS,QString::fromLatin1("x2"));
    writer.writeNamespace(excelNS,QString::fromLatin1("ss"));
    writer.writeNamespace(oNS,QString::fromLatin1("o"));
    writer.writeNamespace(htmlNS,QString::fromLatin1("html"));
    writer.writeNamespace(cNS,QString::fromLatin1("c"));
    /*
     correct namenspace order 
    xmlns="urn:schemas-microsoft-com:office:spreadsheet" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:x="urn:schemas-microsoft-com:office:excel" 
xmlns:x2="http://schemas.microsoft.com/office/excel/2003/xml" 
xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" 
xmlns:o="urn:schemas-microsoft-com:office:office" 
xmlns:html="http://www.w3.org/TR/REC-html40" 
xmlns:c="urn:schemas-microsoft-com:office:component:spreadsheet">
    */
    
    writer.writeStartDocument();
    writer.writeStartElement(excelNS,QString::fromLatin1("Workbook"));
    /*
    writer.writeAttribute(QString::fromLatin1("xmlns"),QString("urn:schemas-microsoft-com:office:spreadsheet"));
    writer.writeAttribute(QString::fromLatin1("xmlns:xsi"),QString("http://www.w3.org/2001/XMLSchema-instance"));
    writer.writeAttribute(QString::fromLatin1("xmlns:x"),QString("urn:schemas-microsoft-com:office:excel"));
    writer.writeAttribute(QString::fromLatin1("xmlns:x2"),QString("http://schemas.microsoft.com/office/excel/2003/xml"));
    writer.writeAttribute(QString::fromLatin1("xmlns:ss"),QString("urn:schemas-microsoft-com:office:spreadsheet"));
    writer.writeAttribute(QString::fromLatin1("xmlns:o"),QString("urn:schemas-microsoft-com:office:office"));
    writer.writeAttribute(QString::fromLatin1("xmlns:html"),QString("http://www.w3.org/TR/REC-html40"));
    writer.writeAttribute(QString::fromLatin1("xmlns:c"),QString("urn:schemas-microsoft-com:office:component:spreadsheet"));
    */
    writer.writeStartElement(excelNS,QString::fromLatin1("Styles"));
    writer.writeStartElement(excelNS,QString::fromLatin1("Style"));
    writer.writeAttribute(excelNS,QString::fromLatin1("ID"),QString("ce_head"));
    writer.writeStartElement(excelNS,QString::fromLatin1("Alignment"));
    writer.writeAttribute(excelNS,QString::fromLatin1("Horizontal"),QString("Center"));
    writer.writeAttribute(excelNS,QString::fromLatin1("Indent"),QString("0"));
    writer.writeEndElement();
    writer.writeStartElement(excelNS,QString::fromLatin1("Font"));
    writer.writeAttribute(excelNS,QString::fromLatin1("Bold"),QString("1"));
    writer.writeAttribute(excelNS,QString::fromLatin1("Italic"),QString("1"));
    writer.writeAttribute(excelNS,QString::fromLatin1("Size"),QString("9"));
    writer.writeStartElement(excelNS,QString::fromLatin1("Interior"));
    writer.writeAttribute(excelNS,QString::fromLatin1("Color"),QString("#ebebeb"));
    writer.writeAttribute(excelNS,QString::fromLatin1("Pattern"),QString("Solid"));
    writer.writeEndElement();
    writer.writeEndElement();
    writer.writeEndElement(); /////  Styles 1
    writer.writeStartElement(excelNS,QString::fromLatin1("Style"));   //// 0 
    writer.writeAttribute(excelNS,QString::fromLatin1("ID"),QString("ce1"));
    writer.writeStartElement(excelNS,QString::fromLatin1("Alignment")); //// 0 
    writer.writeAttribute(excelNS,QString::fromLatin1("Horizontal"),QString("Right"));
    writer.writeAttribute(excelNS,QString::fromLatin1("Indent"),QString("0"));
    writer.writeEndElement();
    writer.writeStartElement(excelNS,QString::fromLatin1("Interior")); //// 0   
    writer.writeAttribute(excelNS,QString::fromLatin1("Color"),QString("#e4fdff"));
    writer.writeAttribute(excelNS,QString::fromLatin1("Pattern"),QString("Solid"));
    writer.writeEndElement();
    writer.writeEndElement(); /////  Style 2
    
    
    writer.writeStartElement(excelNS,QString::fromLatin1("Style"));   //// 0 
    writer.writeAttribute(excelNS,QString::fromLatin1("ID"),QString("ce2"));
    writer.writeStartElement(excelNS,QString::fromLatin1("Alignment")); //// 0 
    writer.writeAttribute(excelNS,QString::fromLatin1("Horizontal"),QString("Left"));
    writer.writeAttribute(excelNS,QString::fromLatin1("Indent"),QString("2"));
    writer.writeEndElement();
    writer.writeStartElement(excelNS,QString::fromLatin1("Interior")); //// 0   
    writer.writeAttribute(excelNS,QString::fromLatin1("Color"),QString("#ffffe5"));
    writer.writeAttribute(excelNS,QString::fromLatin1("Pattern"),QString("Solid"));
    writer.writeEndElement();
    writer.writeEndElement();
    
    
    writer.writeEndElement(); /////  Styles 0
    /*  Styles  */
    
    writer.writeStartElement(excelNS,QString::fromLatin1("Worksheet"));
    writer.writeAttribute(excelNS,QString::fromLatin1("Name"),tablename);
   
    writer.writeStartElement(excelNS,QString::fromLatin1("Table"));
    if (db.isOpen()) {
        
        for (int i = 0; i < mod->columnCount(); ++i) {
             const QString Htext = mod->headerData(i,Qt::Horizontal,Qt::DisplayRole).toString();
             m_header.append(Htext);
         }
         
       for (int i = 0; i < m_header.size(); ++i)  {
           writer.writeStartElement(excelNS,QString::fromLatin1("Column"));
           writer.writeAttribute(QString::fromLatin1("Width"),QString("100"));
           writer.writeEndElement();
       }
       writer.writeStartElement(excelNS,QString::fromLatin1("Row"));
       writer.writeAttribute(excelNS,QString::fromLatin1("StyleID"),QString("ce_head"));
       
       for (int i = 0; i < m_header.size(); ++i)  {
           writer.writeStartElement(excelNS,QString::fromLatin1("Cell"));
           
           writer.writeStartElement(excelNS,QString::fromLatin1("Data"));
           writer.writeAttribute(excelNS,QString::fromLatin1("Type"),QString("String"));
           writer.writeCharacters(m_header.at(i));
           writer.writeEndElement();
           writer.writeEndElement(); 
       }
       writer.writeEndElement();
       
       for (int i = 0; i < mod->rowCount(); ++i)
        {
        writer.writeStartElement(excelNS,QString::fromLatin1("Row"));
        QSqlRecord r = mod->record(i);
            for (int j = 0; j < m_header.size(); ++j)  {
                QString curr = StringStripslash(r.value(j).toString());
                if (GrepNummer(curr)) {
                    writer.writeStartElement(excelNS,QString::fromLatin1("Cell"));
                    writer.writeAttribute(excelNS,QString::fromLatin1("StyleID"),QString("ce1"));
                    writer.writeStartElement(excelNS,QString::fromLatin1("Data"));
                    writer.writeAttribute(QString::fromLatin1("Type"),QString("Number"));
                    writer.writeCharacters(curr);
                    writer.writeEndElement();
                    writer.writeEndElement();
                } else {
                    writer.writeStartElement(excelNS,QString::fromLatin1("Cell"));
                    writer.writeAttribute(excelNS,QString::fromLatin1("StyleID"),QString("ce2"));
                    writer.writeStartElement(excelNS,QString::fromLatin1("Data"));
                    writer.writeAttribute(excelNS,QString::fromLatin1("Type"),QString("String"));
                    writer.writeCharacters(curr);
                    writer.writeEndElement();
                    writer.writeEndElement();
                }
            }   
        writer.writeEndElement();     
        }
   }
    writer.writeEndElement(); //// Table
    writer.writeEndElement();  //// Worksheet
    writer.writeEndElement();  //// Workbook
    writer.writeEndDocument();
    QByteArray stream = d->data();
    d->close();
    stream.replace("<?xml version=\"1.0\" encoding=\"UTF-8\"?>","");
    QByteArray stream0("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<?mso-application progid=\"Excel.Sheet\"?>");
    stream0.append(stream);
    return stream0;
}




.........................
speack português italiano deutsch english castellà qt

Antworten