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enrichmenttab.py
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enrichmenttab.py
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from qgis.core import QgsProject,Qgis
from qgis.utils import iface
from .enrichmentquerytask import EnrichmentQueryTask
from qgis.PyQt.QtWidgets import QMessageBox,QProgressDialog,QTableWidgetItem
from qgis.PyQt.QtCore import Qt
from qgis.core import QgsApplication
class EnrichmentTab:
enrichLayer=None
enrichedExport=False
dlg=None
qtask=None
originalRowCount=0
enrichLayerCounter=0
def __init__(self,dlg):
self.dlg=dlg
## Starts the process of layer enrichment according to the options selected in the enrichment dialog.
# @param self The object pointer.
def enrichLayerProcess(self):
layers = QgsProject.instance().layerTreeRoot().children()
selectedLayerIndex = self.dlg.chooseLayerEnrich.currentIndex()
self.enrichLayer = layers[selectedLayerIndex].layer().clone()
attlist={}
itemlist=[]
propertylist=[]
excludelist=[]
resultmap={}
self.dlg.enrichTableResult.clear()
self.dlg.enrichTableResult.setRowCount(0)
self.dlg.enrichTableResult.setColumnCount(self.dlg.enrichTable.rowCount())
fieldnames=[]
for row in range(self.dlg.enrichTable.rowCount()):
fieldnames.append(self.dlg.enrichTable.item(row, 0).text())
self.dlg.enrichTableResult.setHorizontalHeaderLabels(fieldnames)
self.enrichLayer.startEditing()
for row in range(self.dlg.enrichTable.rowCount()):
idfield=self.dlg.enrichTable.cellWidget(row, 5).currentText()
idprop=self.dlg.enrichTable.item(row, 6).text()
if idprop==None or idprop=="":
msgBox=QMessageBox()
msgBox.setText("ID Property has not been specified for column "+str(self.dlg.enrichTable.item(row, 0).text()))
msgBox.exec()
return
item = self.dlg.enrichTable.item(row, 0).text()
propertyy=self.dlg.enrichTable.item(row, 1)
triplestoreurl=""
if self.dlg.enrichTable.item(row, 2)!=None:
triplestoreurl=self.dlg.enrichTable.item(row, 2).text()
print(self.dlg.enrichTable.item(row, 2).text())
strategy = self.dlg.enrichTable.cellWidget(row, 3).currentText()
content=""
if self.dlg.enrichTable.cellWidget(row, 4)!=None:
content = self.dlg.enrichTable.cellWidget(row, 4).currentText()
if item!=idfield:
propertylist.append(self.dlg.enrichTable.item(row, 1))
if strategy=="Exclude":
excludelist.append(row)
if strategy!="No Enrichment" and propertyy!=None:
progress = QProgressDialog("Enriching column "+self.dlg.enrichTable.item(row, 0).text(), "Abort", 0, 0, self.dlg)
progress.setWindowModality(Qt.WindowModal)
progress.setCancelButton(None)
self.qtask=EnrichmentQueryTask("Enriching column: "+self.dlg.enrichTable.item(row, 0).text(), triplestoreurl,self.enrichLayer,strategy,self.dlg.enrichTable.item(row, 8).text(),row,len(self.enrichLayer.fields()),self.dlg.enrichTable.item(row, 0).text(),self.dlg.enrichTable,self.dlg.enrichTableResult,idfield,idprop,self.dlg.enrichTable.item(row, 1),content,progress)
QgsApplication.taskManager().addTask(self.qtask)
else:
rowww=0
for f in self.enrichLayer.getFeatures():
if rowww>=self.dlg.enrichTableResult.rowCount():
self.dlg.enrichTableResult.insertRow(rowww)
#if item in f:
newitem=QTableWidgetItem(str(f[item]))
self.dlg.enrichTableResult.setItem(rowww,row,newitem)
#if ";" in str(newitem):
# newitem.setBackground(QColor.red)
print(str(newitem))
rowww+=1
self.enrichLayer.commitChanges()
row+=1
iface.vectorLayerTools().stopEditing(self.enrichLayer)
self.enrichLayer.dataProvider().deleteAttributes(excludelist)
self.enrichLayer.updateFields()
self.dlg.enrichTable.hide()
self.dlg.enrichTableResult.show()
self.dlg.startEnrichment.setText("Enrichment Configuration")
self.dlg.startEnrichment.clicked.disconnect()
self.dlg.startEnrichment.clicked.connect(self.dlg.showConfigTable)
self.dlg.addEnrichedLayerRowButton.setEnabled(False)
return self.enrichLayer
## Adds a QGIS layer which has been previously enriched to QGIS.
# @param self The object pointer.
def addEnrichedLayer(self):
if self.enrichLayer==None:
layers = QgsProject.instance().layerTreeRoot().children()
selectedLayerIndex = self.dlg.chooseLayerEnrich.currentIndex()
self.enrichLayer = layers[selectedLayerIndex].layer().clone()
self.enrichLayerCounter+=1
self.enrichLayer.setName(self.enrichLayer.name()+"_enrich"+str(self.enrichLayerCounter))
self.enrichLayer.startEditing()
row=0
fieldnames = [field.name() for field in self.enrichLayer.fields()]
for f in self.enrichLayer.getFeatures():
fieldcounter=0
for field in fieldnames:
if self.dlg.enrichTableResult.item(row,fieldcounter)!=None:
f[field]=self.dlg.enrichTableResult.item(row,fieldcounter).text()
else:
f[field]=""
fieldcounter+=1
self.enrichLayer.updateFeature(f)
row+=1
self.enrichLayer.commitChanges()
iface.vectorLayerTools().stopEditing(self.enrichLayer)
QgsProject.instance().addMapLayer(self.enrichLayer,True)
canvas = iface.mapCanvas()
canvas.setExtent(self.enrichLayer.extent())
iface.messageBar().pushMessage("Add layer", "OK", level=Qgis.Success)
self.dlg.close()
## Prepares datastructures to export enrichments of a given layer configured in the enrichment dialog.
# @param self The object pointer.
def exportEnrichedLayer(self):
self.exportIdCol=""
self.exportNameSpace=self.dlg.interlinkNameSpace.text()
self.exportSetClass=self.dlg.interlinkOwlClassInput.text()
propurilist=[]
classurilist=[]
includelist=[]
proptypelist=[]
valuemappings={}
valuequeries=[]
for row in range(self.dlg.interlinkTable.rowCount()):
item = self.dlg.interlinkTable.item(row, 0)
if item.checkState():
includelist.append(True)
if self.dlg.interlinkTable.item(row, 1).checkState():
self.exportIdCol=self.dlg.interlinkTable.item(row, 3).text()
propurilist.append("")
classurilist.append("")
proptypelist.append("")
else:
column = self.dlg.interlinkTable.item(row, 3).text()
if self.dlg.interlinkTable.item(row,4)!=None:
column=self.dlg.interlinkTable.item(row,3).data(0)
propurilist.append(self.dlg.interlinkTable.item(row,4).data(1))
else:
propurilist.append("")
if self.dlg.interlinkTable.item(row,5)!=None:
proptypelist.append(self.dlg.interlinkTable.item(row,5).text())
else:
proptypelist.append("")
if self.dlg.interlinkTable.item(row, 6)!=None:
concept = self.dlg.interlinkTable.item(row, 6).data(0)
self.exportColConfig[column]=concept
classurilist.append(concept)
else:
classurilist.append("")
if self.dlg.interlinkTable.item(row, 7)!=None:
self.valueconcept = self.dlg.interlinkTable.item(row, 7).data(0)
valuemappings[item.text()]=self.dlg.interlinkTable.item(row,7).data(1)
valuequeries.append({self.dlg.interlinkTable.item(row,7).data(2),self.dlg.interlinkTable.item(row,7).data(3)})
else:
includelist.append(False)
propurilist.append("")
classurilist.append("")
proptypelist.append("")
self.enrichedExport=True
self.dlg.maindlg.exportLayer(propurilist,classurilist,includelist,proptypelist,valuemappings,valuequeries,self.dlg.exportTripleStore.isChecked())