class PgVersion:
def __init__(self, iface):
# Save reference to the QGIS interface
self.iface = iface
self.dlgCommitMessage = CommitMessageDialog()
self.tools = PgVersionTools(self.iface)
self.w = None
self.vsCheck = None
#Initialise thetranslation environment
userPluginPath = QFileInfo(QgsApplication.qgisUserDbFilePath()).path()+"/python/plugins/pgversion"
systemPluginPath = QgsApplication.prefixPath()+"/share/qgis/python/plugins/pgversion"
myLocaleName = QLocale.system().name()
myLocale = myLocaleName[0:2]
if QFileInfo(userPluginPath).exists():
pluginPath = userPluginPath
localePath = userPluginPath+"/i18n/pgVersion_"+myLocale+".qm"
elif QFileInfo(systemPluginPath).exists():
pluginPath = systemPluginPath
localePath = systemPluginPath+"/i18n/pgVersion_"+myLocale+".qm"
if QFileInfo(localePath).exists():
translator = QTranslator()
translator.load(localePath)
if qVersion() > '4.3.3':
QCoreApplication.installTranslator(translator)
self.plugin_dir = pystring(QFileInfo(QgsApplication.qgisUserDbFilePath()).path()) + "/python/plugins/pgversion"
self.iface.projectRead.connect(self.layersInit)
def initGui(self):
self.helpDialog = HelpDialog()
self.LogViewDialog = LogView()
self.toolBar = self.iface.addToolBar("PG Version")
self.toolBar.setObjectName("PG Version")
self.actionInit = QAction(QIcon(":/plugins/pgversion/icons/pgversion-init.png"), QCoreApplication.translate("PgVersion","Prepare Layer for Versioning"), self.iface.mainWindow())
self.actionLoad = QAction(QIcon(":/plugins/pgversion/icons/pgversion-commit.png"), QCoreApplication.translate("PgVersion","Load Versioned Layer"), self.iface.mainWindow())
self.actionCommit = QAction(QIcon(":/plugins/pgversion/icons/pgversion-load.png"), QCoreApplication.translate("PgVersion","Commit Changes"), self.iface.mainWindow())
self.actionRevert = QAction(QIcon(":/plugins/pgversion/icons/pgversion-revert.png"), QCoreApplication.translate("PgVersion","Revert to HEAD Revision"), self.iface.mainWindow())
self.actionLogView = QAction(QIcon(":/plugins/pgversion/icons/pgversion-logview.png"), QCoreApplication.translate("PgVersion","Show Logs"), self.iface.mainWindow())
self.actionDiff = QAction(QIcon(":/plugins/pgversion/icons/pgversion-diff.png"), QCoreApplication.translate("PgVersion","Show Diffs"), self.iface.mainWindow())
# self.actionCommit.setEnabled(False)
self.actionDrop = QAction(QIcon(":/plugins/pgversion/icons/pgversion-drop.png"), QCoreApplication.translate("PgVersion","Drop Versioning from Layer"), self.iface.mainWindow())
self.actionHelp = QAction(QIcon(""), QCoreApplication.translate("PgVersion","Help"), self.iface.mainWindow())
self.actionAbout = QAction(QIcon(""), QCoreApplication.translate("PgVersion","About"), self.iface.mainWindow())
# self.actionList = [ self.actionInit,self.actionLoad, self.actionCommit, self.actionDiff, self.actionRevert, self.actionLogView, self.actionDrop, self.actionLogView, self.actionHelp]
self.actionList = [ self.actionInit,self.actionLoad,self.actionCommit,self.actionRevert, self.actionLogView, self.actionDrop, self.actionLogView, self.actionHelp, self.actionAbout]
self.toolBar.addAction(self.actionInit)
self.toolBar.addAction(self.actionLoad)
self.toolBar.addAction(self.actionCommit)
self.toolBar.addAction(self.actionRevert)
# self.toolBar.addAction(self.actionDiff)
self.toolBar.addAction(self.actionLogView)
# Add the Menubar into the new Database Main Menue starting with QGIS1.7
try:
for a in self.actionList:
self.iface.addPluginToDatabaseMenu("PG Version", a)
except AttributeError:
# For former QGIS Versions use the old Main Menue
self.menu = QMenu()
self.menu.setTitle( "PG Version" )
self.menu.addActions(self.actionList)
self.menuBar = self.iface.mainWindow().menuBar()
self.menuBar.addMenu(self.menu)
# connect the action to the run method
self.actionInit.triggered.connect(self.doInit)
self.actionLoad.triggered.connect(self.doLoad)
self.actionDiff.triggered.connect(self.doDiff)
self.actionCommit.triggered.connect(self.doCommit)
self.actionRevert.triggered.connect(self.doRevert)
self.actionLogView.triggered.connect(self.doLogView)
self.actionDrop.triggered.connect(self.doDrop)
self.actionHelp.triggered.connect(self.doHelp)
self.actionAbout.triggered.connect(self.doAbout)
self.LogViewDialog.rollbackLayer.connect(self.doRollback)
self.LogViewDialog.checkoutLayer.connect(self.doCheckout)
def layersInit(self):
canvas = self.iface.mapCanvas()
layerList = canvas.layers()
for l in layerList:
if l.type() == QgsMapLayer.VectorLayer and l.providerType() == 'postgres':
# self.tools.setModified(l)
l.editingStopped.connect(self.tools.setModified)
def unload(self):
# remove menubar
try:
for a in self.actionList:
self.iface.removePluginDatabaseMenu("PG Version", a)
except:
del self.menuBar
del self.toolBar
def doInit(self):
canvas = self.iface.mapCanvas()
currentLayer = canvas.currentLayer()
if currentLayer == None:
QMessageBox.information(None, '', QCoreApplication.translate('PgVersion','Please select a layer for versioning'))
return
else:
provider = currentLayer.dataProvider()
uri = provider.dataSourceUri()
myDb = self.tools.layerDB('doInit',currentLayer)
if not self.tools.checkPGVSRevision(myDb):
return
mySchema = QgsDataSourceURI(uri).schema()
if len(mySchema) == 0:
mySchema = 'public'
myTable = QgsDataSourceURI(uri).table()
if not self.tools.versionExists(currentLayer):
myExtent = canvas.extent()
answer = QMessageBox.question(None, '', QCoreApplication.translate('PgVersion','Do you want to create the version environment for the table {0}').format(mySchema+'.'+myTable), QCoreApplication.translate('PgVersion','Yes'), QCoreApplication.translate('PgVersion','No'))
QApplication.setOverrideCursor(Qt.WaitCursor)
if answer == 0:
sql = "select * from versions.pgvsinit('"+mySchema+"."+myTable+"')"
result = myDb.runError(sql)
myDb.close()
QMessageBox. information(None, 'Init', QCoreApplication.translate('PgVersion', 'Init was successful!\n\n\
Please set the user permissions for table {0} and reload it via Database -> PG Version!').format(myTable))
# vUri = QgsDataSourceURI(provider.dataSourceUri() )
# vUri.setDataSource(mySchema, myTable+'_version', QgsDataSourceURI(uri).geometryColumn())
#
# vLayer = QgsVectorLayer(vUri.uri(), myTable+'_version', 'postgres')
QgsMapLayerRegistry.instance().removeMapLayer(currentLayer.id())
# QgsMapLayerRegistry.instance().addMapLayer(vLayer)
# canvas.setExtent(myExtent)
# canvas.zoomToPreviousExtent()
QApplication.restoreOverrideCursor()
else:
self.iface.messageBar().pushMessage(QCoreApplication.translate('PgVersion','Init Error'), QCoreApplication.translate('PgVersion','Versioning envoronment for table {0} already exsists!').format(mySchema+"."+myTable), level=QgsMessageBar.CRITICAL, duration=3)
def doLoad(self):
self.dlg = PgVersionLoadDialog(self.iface)
self.dlg.show()
def doRollback(self, item):
if item == None:
QMessageBox.information(None, QCoreApplication.translate('PgVersion','Error'), QCoreApplication.translate('PgVersion','Please select a valid revision'))
return
revision = item.text(0)
canvas = self.iface.mapCanvas()
currentLayer = canvas.currentLayer()
if currentLayer == None:
QMessageBox.information(None, '', QCoreApplication.translate('PgVersion','Please select a versioned layer'))
return
else:
answer = QMessageBox.question(None, '', QCoreApplication.translate('PgVersion','Are you sure to rollback to revision {0}?').format(revision), QCoreApplication.translate('PgVersion','Yes'), QCoreApplication.translate('PgVersion','No'))
if answer == 0:
if self.tools.isModified(currentLayer):
answer = QMessageBox.question(None, '', \
QCoreApplication.translate('PgVersion','Layer {0} has modifications which will be lost after rollback! \
If you want to keep this modifications please commit them. \
Are you sure to rollback to revision {1}?').format(currentLayer.name(), revision), QCoreApplication.translate('PgVersion','Yes'), QCoreApplication.translate('PgVersion','No'))
if answer == 1:
return
QApplication.setOverrideCursor(Qt.WaitCursor)
provider = currentLayer.dataProvider()
uri = provider.dataSourceUri()
myDb = self.tools.layerDB('doRollback',currentLayer)
if not self.tools.checkPGVSRevision(myDb):
return
mySchema = QgsDataSourceURI(uri).schema()
if len(mySchema) == 0:
mySchema = 'public'
myTable = QgsDataSourceURI(uri).table()
sql = "select * from versions.pgvsrollback('"+mySchema+"."+myTable.replace('_version', '')+"',"+revision+")"
myDb.run(sql)
myDb.close()
self.LogViewDialog.close()
canvas.refresh()
QApplication.restoreOverrideCursor()
self.tools.setModified(currentLayer)
self.iface.messageBar().pushMessage('INFO', QCoreApplication.translate('PgVersion','Rollback to revision {0} was successful!').format(revision), level=QgsMessageBar.INFO, duration=3)
return
def doCommit(self):
canvas = self.iface.mapCanvas()
if canvas.currentLayer() == None:
self.iface.messageBar().pushMessage('Error', QCoreApplication.translate('PgVersion','Please select a versioned layer for committing'), level=QgsMessageBar.CRITICAL, duration=3)
return
canvas = self.iface.mapCanvas()
theLayer = canvas.currentLayer()
provider = theLayer.dataProvider()
uri = provider.dataSourceUri()
myDb = self.tools.layerDB('commit', theLayer)
mySchema = QgsDataSourceURI(uri).schema()
if len(mySchema) == 0:
mySchema = 'public'
myTable = QgsDataSourceURI(uri).table()
# if theLayer == None:
# self.iface.messageBar().pushMessage('Error', QCoreApplication.translate('PgVersion','Please select a versioned layer for committing'), level=QgsMessageBar.ERROR, duration=3)
# return
if self.tools.isModified(theLayer):
confRecords = self.tools.confRecords(theLayer)
if confRecords == None:
# show the dialog
self.dlgCommitMessage.show()
result = self.dlgCommitMessage.exec_()
if result == QDialog.Accepted:
QApplication.setOverrideCursor(Qt.WaitCursor)
sql = "select * from versions.pgvscommit('"+mySchema+"."+myTable.replace('_version', '')+"','"+self.dlgCommitMessage.textEdit.toPlainText()+"')"
myDb.run(sql)
canvas.refresh()
self.iface.messageBar().pushMessage("Info", QCoreApplication.translate('PgVersion','Commit of your changes was successful'), level=QgsMessageBar.INFO, duration=3)
self.tools.setModified(None, True)
QApplication.restoreOverrideCursor()
else:
if self.w != None:
self.w = None
self.w = ConflictWindow(self.iface, theLayer, 'conflict', self)
self.w.mergeCompleted.connect(self.doCommit)
self.w.show()
myDb.close()
self.tools.setModified(None, True)
else:
self.iface.messageBar().pushMessage('INFO', QCoreApplication.translate('PgVersion','No layer changes for committing, everything is OK'), level=QgsMessageBar.INFO, duration=3)
def doCheckout(self, item):
revision = item.text(0)
self.LogViewDialog.btnClose.setEnabled(False)
QApplication.setOverrideCursor(Qt.WaitCursor)
if revision == '-----':
QMessageBox.information(None, 'Error', 'Please select a valid revision')
return
theLayer = self.iface.activeLayer()
provider = theLayer.dataProvider()
myCrs = provider.crs()
uri = provider.dataSourceUri()
myDb = self.tools.layerDB('checkout', theLayer)
mySchema = QgsDataSourceURI(uri).schema()
myTable = QgsDataSourceURI(uri).table()
myKeyColumn = QgsDataSourceURI(uri).keyColumn()
numFeat = provider.featureCount()
if len(mySchema) == 0:
mySchema = 'public'
sql = " select "+myKeyColumn+", revision, action \
from versions."+mySchema+"_"+myTable+"_log \
where revision > "+revision+" \
order by revision desc "
QMessageBox.information(None, '', sql)
pass
result = myDb.read(sql)
# Load the LOG-Table for further usage
logUri = QgsDataSourceURI()
logUri.setConnection(QgsDataSourceURI(uri).host(), QgsDataSourceURI(uri).port(), QgsDataSourceURI(uri).database(),QgsDataSourceURI(uri).username() , QgsDataSourceURI(uri).password())
logUri.setDataSource("versions", mySchema+"_"+myTable+"_log", QgsDataSourceURI(uri).geometryColumn(), "revision > "+revision)
logUri.setKeyColumn(QgsDataSourceURI(uri).keyColumn())
logLayer = QgsVectorLayer(logUri.uri(), "dummy", "postgres")
logProvider = logLayer.dataProvider()
if theLayer.geometryType() == 0:
myGeometry = "Point"
elif theLayer.geometryType() == 1:
myGeometry = "Linestring"
elif theLayer.geometryType() == 2:
myGeometry = "Polygon"
revLayer = QgsVectorLayer(myGeometry, myTable.replace('_version', '')+"_rev_"+revision, "memory")
revLayer.setCrs(myCrs)
revProvider = revLayer.dataProvider()
mLogLayer = QgsVectorLayer(myGeometry, myTable.replace('_version', '')+"_rev_"+revision, "memory")
mLogLayer.setCrs(myCrs)
mLogProvider = mLogLayer.dataProvider()
myFieldList = self.tools.getFieldList(logLayer)
myFieldDefList = []
# for (k, attr) in myFieldList.iteritems():
# myFieldDefList.append(attr)
for attr in mLogProvider.fields():
myFieldDefList.append(attr)
mLogProvider.addAttributes( myFieldDefList)
feat = QgsFeature()
allAttrs = logProvider.attributeIndexes()
# logProvider.select(allAttrs)
numFeat = numFeat + logProvider.featureCount()
self.LogViewDialog.progressBar.setMinimum(0)
self.LogViewDialog.progressBar.setRange(0, 100)
self.LogViewDialog.progressBar.setValue(50)
count = 1
mIter = mLogLayer.getFeatures()
for feat in mIter:
mFeat = QgsFeature()
mFeat.setGeometry(feat.geometry())
mFeat.setAttributeMap(feat.attributeMap())
mLogProvider.addFeatures( [mFeat] )
self.LogViewDialog.progressBar.setValue(float(count)/float(numFeat)*100.0)
count = count + 1
mLogLayer.startEditing()
numFields = mLogProvider.fields().count()
for i in range(numFields-1):
mLogLayer.deleteAttribute(numFields-i)
mLogLayer.commitChanges()
QgsMapLayerRegistry.instance().addMapLayer(revLayer)
# myFieldList = self.tools.getFieldList(theLayer)
myFieldDefList = []
for attr in provider.fields():
myFieldDefList.append(attr)
revProvider.addAttributes( myFieldDefList)
myFeatList = []
feat = QgsFeature()
# allAttrs = provider.attributeIndexes()
# start data retreival: fetch geometry and all attributes for each feature
# provider.select(allAttrs)
# attrs = feat.attributeMap()
iter = theLayer.getFeatures()
for feat in iter:
if str(feat.id()) not in result[str(myKeyColumn.upper())]:
revFeat = QgsFeature()
revFeat.setGeometry(feat.geometry())
revFeat.setAttributes(feat.attributes())
myFeatList.append(revFeat)
revProvider.addFeatures( [revFeat] )
self.LogViewDialog.progressBar.setValue(float(count)/float(numFeat)*100.0)
count = count + 1
for feat in mIter:
attrs = feat.attributeMap()
actionFieldId = len(attrs)-5
if attrs[actionFieldId].toString() == 'delete':
revFeat = QgsFeature()
revFeat.setGeometry(feat.geometry())
revFeat.setAttributes(feat.attributeMap())
myFeatList.append(revFeat)
revProvider.addFeatures( [revFeat] )
self.LogViewDialog.progressBar.setValue(float(count)/float(numFeat)*100.0)
count = count + 1
revLayer.startEditing()
revLayer.commitChanges()
self.LogViewDialog.progressBar.setValue(100.0)
self.LogViewDialog.btnClose.setEnabled(True)
QApplication.restoreOverrideCursor()
QApplication.setOverrideCursor(Qt.ArrowCursor)
self.iface.mapCanvas().refresh()
pass
def doRevert(self):
try:
canvas = self.iface.mapCanvas()
theLayer = self.iface.activeLayer()
provider = theLayer.dataProvider()
uri = provider.dataSourceUri()
myDb = self.tools.layerDB('revert', theLayer)
mySchema = QgsDataSourceURI(uri).schema()
myTable = QgsDataSourceURI(uri).table()
if len(mySchema) == 1:
mySchema = 'public'
except:
self.iface.messageBar().pushMessage('Error', QCoreApplication.translate('PgVersion','Please select a versioned layer for reverting'), level=QgsMessageBar.CRITICAL, duration=3)
return
answer = QMessageBox.question(None, '', QCoreApplication.translate('PgVersion','are you sure to revert to the HEAD revision?'), QCoreApplication.translate('PgVersion','Yes'), QCoreApplication.translate('PgVersion','No'))
if answer == 0:
sql = "select * from versions.pgvsrevert('"+mySchema+"."+myTable.replace('_version', '')+"')"
result = myDb.read(sql)
if len(result)>1:
QMessageBox.information(None, '',result)
else:
self.iface.messageBar().pushMessage("Info", QCoreApplication.translate('PgVersion','All changes are set back to the HEAD revision: {0}').format(str(result["PGVSREVERT"][0])), level=QgsMessageBar.INFO, duration=3)
self.tools.setModified(None, True)
canvas.refresh()
myDb.close()
pass
def doLogView(self):
# try:
canvas = self.iface.mapCanvas()
theLayer = self.iface.activeLayer()
provider = theLayer.dataProvider()
uri = provider.dataSourceUri()
myDb = self.tools.layerDB('logview', theLayer)
mySchema = QgsDataSourceURI(uri).schema()
myTable = QgsDataSourceURI(uri).table()
if len(mySchema) == 0:
mySchema = 'public'
sql = "select * from versions.pgvslogview('"+mySchema+"."+myTable.replace('_version', '')+"') order by revision desc"
result = myDb.read(sql)
logHTML = "<html><head></head><body><Table>"
self.LogViewDialog.treeWidget.clear()
itemList = []
for i in range(len(result["PROJECT"])):
myItem = QTreeWidgetItem()
myItem.setText(0, result["REVISION"][i])
myItem.setText(1, result["DATUM"][i])
myItem.setText(2, result["PROJECT"][i])
myItem.setText(3, result["LOGMSG"][i])
itemList.append(myItem)
self.LogViewDialog.treeWidget.addTopLevelItems(itemList)
self.LogViewDialog.show()
myDb.close()
canvas.refresh()
# except:
# return
pass
def doDiff(self):
# QMessageBox.information(None, 'Message', 'Diff is not implemented yet!')
# try:
canvas = self.iface.mapCanvas()
theLayer = canvas.currentLayer()
provider = theLayer.dataProvider()
uri = provider.dataSourceUri()
# myDb = self.tools.layerDB('commit', theLayer)
type='diff'
self.diff = DiffDlg(self.iface)
self.diff.show()
# except:
# QMessageBox.information(None, '', QCoreApplication.translate('PgVersion','Please select a layer to show the diffs to HEAD'))
def doDrop(self):
# try:
theLayer = self.iface.activeLayer()
provider = theLayer.dataProvider()
uri = provider.dataSourceUri()
mySchema = QgsDataSourceURI(uri).schema()
if len(mySchema) == 0:
mySchema = 'public'
myTable = QgsDataSourceURI(uri).table()
if theLayer == None:
QMessageBox.information(None, '', QCoreApplication.translate('PgVersion','Please select a layer for versioning'))
return
else:
answer = QMessageBox.question(None, '', QCoreApplication.translate('PgVersion','are you sure to to drop pgvs from the table {0}?').format(mySchema+"."+myTable.replace('_version', '')), QCoreApplication.translate('PgVersion','Yes'), QCoreApplication.translate('PgVersion','No'))
if answer == 0:
myDb = self.tools.layerDB('doDrop',theLayer)
sql = "select * from versions.pgvsdrop('"+mySchema+"."+myTable.replace('_version', '')+"')"
result = myDb.read(sql)
myDb.close()
QgsMapLayerRegistry.instance().removeMapLayer(theLayer.id())
# except:
# QMessageBox.information(None, QCoreApplication.translate('PgVersion','Error'), QCoreApplication.translate('PgVersion','Please select a versionied layer for dropping'))
else:
QMessageBox.information(None, '', 'hallo')
def doHelp(self):
helpUrl = QUrl()
helpUrl.setUrl('file://'+self.plugin_dir+'/docs/help.html')
self.helpDialog.webView.load(helpUrl)
self.helpDialog.show()
pass
def doMessage(self):
QMessageBox.information(None, '', 'Hallo')
def doAbout(self):
self.about = DlgAbout(self.plugin_dir)
self.about.show()