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#!/usr/bin/env python
import sys
from qt import *
from qtsql import *
from sqlex import SqlEx
from connect import ConnectDialog
from dbpar import *
TRUE = 1
FALSE = 0
def showError(err, parent):
errStr = QString("The database reported an error:\n\n")
if not err.databaseText().isEmpty():
errStr.append(err.databaseText())
errStr.append("\n")
if not err.driverText().isEmpty():
errStr.append(err.driverText())
errStr.append("\n")
QMessageBox.warning(parent, "Error", errStr)
class CustomSqlCursor(QSqlCursor):
def __init__(self, query = None, autopopulate = TRUE, db = None):
QSqlCursor.__init__(self, None, autopopulate, db)
self.execQuery(query)
if self.isSelect() and autopopulate:
fields = self.driver().recordInfo(self)
for f in fields:
self.append(f)
self.setMode(QSqlCursor.ReadOnly)
def select(self, filter, sort = QSqlIndex()):
return self.execQuery(self.lastQuery())
def primaryIndex(self, prime = TRUE):
return QSqlIndex()
def insert(self, invalidate = TRUE):
return FALSE
def update(self, invalidate = TRUE):
return FALSE
def delRecords(self, invalidate = TRUE):
return FALSE
def setName(self, name, autopopulate = TRUE):
return
class MainWindow(SqlEx):
def __init__(self,parent = None,name = None,fl = 0):
SqlEx.__init__(self,parent,name,fl)
self.conDiag = ConnectDialog(self, "Connection Dialog", TRUE)
self.firstconn = TRUE
def dbConnect(self):
if self.firstconn:
self.firstconn = FALSE
self.conDiag.editUsername.setText(DB_USERNAME)
self.conDiag.editPassword.setText(DB_PASSWORD)
self.conDiag.editHostname.setText(DB_HOSTNAMES[0])
self.conDiag.editDatabase.setText(DB_DATABASES[0])
for i in range(self.conDiag.comboDriver.count()):
if str(self.conDiag.comboDriver.text(i)) == DB_DRIVER:
self.conDiag.comboDriver.setCurrentItem(i)
break
if self.conDiag.exec_loop() != QDialog.Accepted:
return
if self.dt.sqlCursor():
self.dt.setSqlCursor()
# close old connection (if any)
if QSqlDatabase.contains("SqlEx"):
oldDb = QSqlDatabase.database("SqlEx")
oldDb.close()
QSqlDatabase.removeDatabase("SqlEx")
# open the new connection
db = QSqlDatabase.addDatabase(self.conDiag.comboDriver.currentText(), "SqlEx")
if not db:
QMessageBox.warning(self, "Error", "Could not open database")
return
db.setHostName(self.conDiag.editHostname.text())
db.setDatabaseName(self.conDiag.editDatabase.text())
db.setPort(self.conDiag.portSpinBox.value())
if not db.open(self.conDiag.editUsername.text(),
self.conDiag.editPassword.text()):
showError(db.lastError(), self)
return
self.lbl.setText("Double-Click on a table-name to view the contents")
self.lv.clear()
tables = db.tables()
for t in tables:
lvi = QListViewItem(self.lv, t)
fields = db.recordInfo(t)
for f in fields:
req = "?"
if f.isRequired() > 0:
req = "Yes"
elif f.isRequired() == 0:
req = "No"
fi = QListViewItem(lvi, f.name(), QVariant.typeToName(f.type()), req)
lvi.insertItem(fi)
self.lv.insertItem(lvi)
self.submitBtn.setEnabled(TRUE)
def execQuery(self):
cursor = CustomSqlCursor(self.te.text(), TRUE,
QSqlDatabase.database("SqlEx", TRUE))
if cursor.isSelect():
self.dt.setSqlCursor(cursor, TRUE, TRUE)
self.dt.refresh()
txt = QString("Query OK")
if cursor.size() >= 0:
txt.append(", returned rows: %s" % cursor.size())
self.lbl.setText(txt)
else:
if not cursor.isActive():
# an error occured
showError(cursor.lastError(), self)
else:
self.lbl.setText("Query OK, affected rows: %s" %
cursor.numRowsAffected())
def showTable(self, item):
i = item.parent()
if not i:
i = item
cursor = QSqlCursor(i.text(0), TRUE, QSqlDatabase.database("SqlEx", TRUE))
self.dt.setSqlCursor(cursor, TRUE, TRUE)
self.dt.setSort(cursor.primaryIndex())
self.dt.refresh(QDataTable.RefreshAll)
self.lbl.setText("Displaying table %s" % i.text(0))
if __name__ == "__main__":
a = QApplication(sys.argv)
QObject.connect(a,SIGNAL("lastWindowClosed()"),a,SLOT("quit()"))
w = MainWindow()
a.setMainWidget(w)
w.show()
a.exec_loop()
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