| 1 | /****************************************************************************
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| 2 | ** ui.h extension file, included from the uic-generated form implementation.
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| 3 | **
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| 4 | ** If you wish to add, delete or rename slots use Qt Designer which will
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| 5 | ** update this file, preserving your code. Create an init() slot in place of
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| 6 | ** a constructor, and a destroy() slot in place of a destructor.
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| 7 | *****************************************************************************/
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| 8 | #include <qsqldriver.h>
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| 9 | #include <qmessagebox.h>
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| 10 | #include <qsqldatabase.h>
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| 11 | #include <qlineedit.h>
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| 12 | #include <qcombobox.h>
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| 13 | #include <qspinbox.h>
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| 14 | #include <qsqlerror.h>
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| 15 | #include <qsqlcursor.h>
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| 16 | #include <qsqlselectcursor.h>
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| 17 | #include <qdatatable.h>
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| 18 | #include "connect.h"
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| 19 |
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| 20 | static void showError( const QSqlError& err, QWidget* parent = 0 )
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| 21 | {
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| 22 | QString errStr ( "The database reported an error\n" );
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| 23 | if ( !err.databaseText().isEmpty() )
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| 24 | errStr += err.databaseText();
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| 25 | if ( !err.driverText().isEmpty() )
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| 26 | errStr += err.driverText();
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| 27 | QMessageBox::warning( parent, "Error", errStr );
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| 28 | }
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| 29 |
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| 30 | ConnectDialog* conDiag = 0;
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| 31 |
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| 32 | void SqlEx::init()
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| 33 | {
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| 34 | hsplit->setResizeMode( lv, QSplitter::KeepSize );
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| 35 | vsplit->setResizeMode( gb, QSplitter::KeepSize );
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| 36 | submitBtn->setEnabled( FALSE );
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| 37 | conDiag = new ConnectDialog( this, "Connection Dialog", TRUE );
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| 38 | }
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| 39 |
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| 40 | void SqlEx::dbConnect()
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| 41 | {
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| 42 | if ( conDiag->exec() != QDialog::Accepted )
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| 43 | return;
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| 44 | if ( dt->sqlCursor() ) {
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| 45 | dt->setSqlCursor( 0 );
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| 46 | }
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| 47 | // close old connection (if any)
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| 48 | if ( QSqlDatabase::contains( "SqlEx" ) ) {
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| 49 | QSqlDatabase* oldDb = QSqlDatabase::database( "SqlEx" );
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| 50 | oldDb->close();
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| 51 | QSqlDatabase::removeDatabase( "SqlEx" );
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| 52 | }
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| 53 | // open the new connection
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| 54 | QSqlDatabase* db = QSqlDatabase::addDatabase( conDiag->comboDriver->currentText(), "SqlEx" );
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| 55 | if ( !db ) {
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| 56 | QMessageBox::warning( this, "Error", "Could not open database" );
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| 57 | return;
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| 58 | }
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| 59 | db->setHostName( conDiag->editHostname->text() );
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| 60 | db->setDatabaseName( conDiag->editDatabase->text() );
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| 61 | db->setPort( conDiag->portSpinBox->value() );
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| 62 | if ( !db->open( conDiag->editUsername->text(), conDiag->editPassword->text() ) ) {
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| 63 | showError( db->lastError(), this );
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| 64 | return;
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| 65 | }
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| 66 | lbl->setText( "Double-Click on a table-name to view the contents" );
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| 67 | lv->clear();
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| 68 |
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| 69 | QStringList tables = db->tables();
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| 70 | for ( QStringList::Iterator it = tables.begin(); it != tables.end(); ++it ) {
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| 71 | QListViewItem* lvi = new QListViewItem( lv, *it );
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| 72 | QSqlRecordInfo ri = db->recordInfo ( *it );
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| 73 | for ( QSqlRecordInfo::Iterator it = ri.begin(); it != ri.end(); ++it ) {
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| 74 | QString req;
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| 75 | if ( (*it).isRequired() > 0 ) {
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| 76 | req = "Yes";
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| 77 | } else if ( (*it).isRequired() == 0 ) {
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| 78 | req = "No";
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| 79 | } else {
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| 80 | req = "?";
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| 81 | }
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| 82 | QListViewItem* fi = new QListViewItem( lvi, (*it).name(), + QVariant::typeToName( (*it).type() ), req );
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| 83 | lvi->insertItem( fi );
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| 84 | }
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| 85 | lv->insertItem( lvi );
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| 86 | }
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| 87 | submitBtn->setEnabled( TRUE );
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| 88 | }
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| 89 |
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| 90 | void SqlEx::execQuery()
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| 91 | {
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| 92 | // use a custom cursor to populate the data table
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| 93 | QSqlSelectCursor* cursor = new QSqlSelectCursor( te->text(), QSqlDatabase::database( "SqlEx", TRUE ) );
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| 94 | if ( cursor->isSelect() ) {
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| 95 | dt->setSqlCursor( cursor, TRUE, TRUE );
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| 96 | dt->setSort( QStringList() );
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| 97 | dt->refresh( QDataTable::RefreshAll );
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| 98 | QString txt( "Query OK" );
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| 99 | if ( cursor->size() >= 0 )
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| 100 | txt += ", returned rows: " + QString::number( cursor->size() );
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| 101 | lbl->setText( txt );
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| 102 | } else {
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| 103 | // an error occured if the cursor is not active
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| 104 | if ( !cursor->isActive() ) {
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| 105 | showError( cursor->lastError(), this );
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| 106 | } else {
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| 107 | lbl->setText( QString("Query OK, affected rows: %1").arg( cursor->numRowsAffected() ) );
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| 108 | }
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| 109 | }
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| 110 | }
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| 111 |
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| 112 | void SqlEx::showTable( QListViewItem * item )
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| 113 | {
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| 114 | // get the table name
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| 115 | QListViewItem* i = item->parent();
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| 116 | if ( !i ) {
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| 117 | i = item;
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| 118 | }
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| 119 |
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| 120 | // populate the data table
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| 121 | QSqlCursor* cursor = new QSqlCursor( i->text( 0 ), TRUE, QSqlDatabase::database( "SqlEx", TRUE ) );
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| 122 | dt->setSqlCursor( cursor, TRUE, TRUE );
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| 123 | dt->setSort( cursor->primaryIndex() );
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| 124 | dt->refresh( QDataTable::RefreshAll );
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| 125 | lbl->setText( "Displaying table " + i->text( 0 ) );
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| 126 | }
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