def __init__(self, db):
super(KnowledgeModel, self).__init__(None, db)
self.setTable("knowledge")
self.select()
logging.debug("%d rows in KnowledgeModel" % self.rowCount())
self.knowledgeTagsModel = KnowledgeTagsModel(db)
self.tagModel = TagModel(db)
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.setWindowTitle("IKnow")
# DB-Connection
self.dbConnection = DatabaseConnection()
if self.dbConnection.connect():
logging.info("Connected to the Database")
else:
logging.error("Failed to connect to the database")
# Create Models
self.tagModel = TagModel(self.dbConnection.db)
self.knowledgeModel = KnowledgeModel(self.dbConnection.db)
# Setup views
self.ui.knowledgeTableView.setModel(self.knowledgeModel)
self.ui.knowledgeTableView.hideColumn(0)
self.ui.knowledgeTableView.setColumnWidth(1, 600)
self.ui.knowledgeTableView.setColumnWidth(2, 700)
self.ui.tagTreeWidget.setColumnWidth(0, 300)
self.ui.tagTreeWidget.setColumnWidth(1, 30)
# Load tags
self.updateTagWidget()
self.currentTag = None
self.filterKnowledgeText = ""
# Create menus
act = QtGui.QAction("Remove selected Tag", self, statusTip="Remove the selected Tag. The child Tags are not touched.", triggered=self.removeSelectedTag)
self.ui.tagTreeWidget.addAction(act)
self.ui.tagTreeWidget.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu)
# Connect signals and slots
self.ui.tagTreeWidget.currentItemChanged.connect(self.tagChanged)
self.ui.newTagButton.clicked.connect(self.showNewTagButtonDialog)
self.ui.updateTagsButton.clicked.connect(self.updateTagWidget)
self.ui.newKnowledgeButton.clicked.connect(self.showNewKnowledgeDialog)
self.ui.filterTagsEdit.textChanged.connect(self.updateTagWidget)
self.ui.filterKnowledgeEdit.textChanged.connect(self.filterKnowledgeByText)
self.ui.knowledgeTableView.doubleClicked.connect(self.showEditKnowledgeDialog)
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.setWindowTitle("IKnow")
# DB-Connection
self.dbConnection = DatabaseConnection()
if self.dbConnection.connect():
logging.info("Connected to the Database")
else:
logging.error("Failed to connect to the database")
# Create Models
self.tagModel = TagModel(self.dbConnection.db)
self.knowledgeModel = KnowledgeModel(self.dbConnection.db)
# Setup views
self.ui.knowledgeTableView.setModel(self.knowledgeModel)
self.ui.knowledgeTableView.hideColumn(0)
self.ui.knowledgeTableView.setColumnWidth(1, 600)
self.ui.knowledgeTableView.setColumnWidth(2, 700)
self.ui.tagTreeWidget.setColumnWidth(0, 300)
self.ui.tagTreeWidget.setColumnWidth(1, 30)
# Load tags
self.updateTagWidget()
self.currentTag = None
self.filterKnowledgeText = ""
# Create menus
act = QtGui.QAction("Remove selected Tag", self, statusTip="Remove the selected Tag. The child Tags are not touched.", triggered=self.removeSelectedTag)
self.ui.tagTreeWidget.addAction(act)
self.ui.tagTreeWidget.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu)
# Connect signals and slots
self.ui.tagTreeWidget.currentItemChanged.connect(self.tagChanged)
self.ui.newTagButton.clicked.connect(self.showNewTagButtonDialog)
self.ui.updateTagsButton.clicked.connect(self.updateTagWidget)
self.ui.newKnowledgeButton.clicked.connect(self.showNewKnowledgeDialog)
self.ui.filterTagsEdit.textChanged.connect(self.updateTagWidget)
self.ui.filterKnowledgeEdit.textChanged.connect(self.filterKnowledgeByText)
self.ui.knowledgeTableView.doubleClicked.connect(self.showEditKnowledgeDialog)
def removeSelectedTag(self):
selectedItem = self.ui.tagTreeWidget.selectedItems()[0]
IDtoRemove = int(selectedItem.text(1))
logging.debug("Remove selected Tag (ID=%d)." % IDtoRemove)
self.tagModel.removeTag(IDtoRemove)
self.updateTagWidget()
def updateTagWidget(self):
self.tagModel.updateTree()
logging.debug("filter-Edit=%s" % self.ui.filterTagsEdit.text())
filter = self.ui.filterTagsEdit.text()
if filter == "":
filterIDs = None
else:
foundIDs = self.tagModel.getIDsFilteredByName(filter)
logging.debug("foundIDs=" + str(foundIDs))
filterIDs = []
filterIDs.extend(foundIDs)
for ID in foundIDs:
logging.debug("foundIDs=%s" % str(foundIDs))
filterIDs.extend(self.tagModel.getParentIDsDownToRoot(ID))
filterIDs.extend(self.tagModel.getAllChildIDs(ID))
filterIDs = set(filterIDs)
logging.debug("filterIDs=" + str(filterIDs))
# Clear tree
self.ui.tagTreeWidget.clear()
# No filter applied => Show all tags
if filter == "":
self.tagModel.fillTreeWidgetWithTags(self.ui.tagTreeWidget)
# Found tags with applied filter
if filter != "" and len(foundIDs) > 0:
self.tagModel.fillTreeWidgetWithTags(self.ui.tagTreeWidget, filterIDs=filterIDs)
self.ui.tagTreeWidget.expandAll()
def showNewTagButtonDialog(self):
logging.debug("Show NewTagDialog")
newTagDlg = NewTagDialog(self, self.tagModel, self.tagModel.tagParentsModel, parentID=self.currentTag)
newTagDlg.exec_()
self.updateTagWidget()
def showNewKnowledgeDialog(self):
logging.debug("Show NewKnowledgeDialog")
newKnowledgeDlg = NewKnowledgeDialog(self, self.tagModel, self.tagModel.tagParentsModel, self.knowledgeModel, parentID=self.currentTag)
newKnowledgeDlg.exec_()
self.reloadKnowledge()
def showEditKnowledgeDialog(self, modelIndex):
logging.debug("Show EditKnowledgeDialog")
logging.debug("Row=%d" % modelIndex.row())
newKnowledgeDlg = NewKnowledgeDialog(self, self.tagModel, self.tagModel.tagParentsModel, self.knowledgeModel, editRow=modelIndex.row())
newKnowledgeDlg.exec_()
self.knowledgeModel.setFilterByTagID(self.currentTag)
def tagChanged(self, current, previous):
self.currentTag = int(current.text(1))
logging.debug("currentTag = %d", self.currentTag)
self.reloadKnowledge()
def filterKnowledgeByText(self, filterText):
self.filterKnowledgeText = filterText
logging.debug("filterKnowledgeByText: self.filterKnowledgeText=%s" % self.filterKnowledgeText)
self.reloadKnowledge()
def reloadKnowledge(self):
self.knowledgeModel.reload(self.currentTag, self.filterKnowledgeText)
class KnowledgeModel(QtSql.QSqlTableModel):
def __init__(self, db):
super(KnowledgeModel, self).__init__(None, db)
self.setTable("knowledge")
self.select()
logging.debug("%d rows in KnowledgeModel" % self.rowCount())
self.knowledgeTagsModel = KnowledgeTagsModel(db)
self.tagModel = TagModel(db)
def setFilterByTagIDsAndText(self, tagIDs, filterText):
if len(tagIDs) == 0:
filterByTags = "1"
else:
knowledgeIDs = self.knowledgeTagsModel.getKnowledgeIDsFromTagIDs(tagIDs)
logging.debug("getKnowledgeIDsFromTagIDs(%s)=%s" % (str(tagIDs), str(knowledgeIDs)))
if len(knowledgeIDs) == 0:
filterByTags = "0"
else:
filterByTags = getFilterFromIDs(knowledgeIDs, "ID")
if filterText is not None and filterText != "":
filterByText = '(title LIKE "%' + filterText + '%") OR (description LIKE "%' + filterText + '%")'
else:
filterByText = ''
logging.debug('filterByTags="%s"' % filterByTags)
logging.debug('filterByText="%s"' % filterByText)
if filterByText != "":
self.setFilter("(%s) AND (%s)" % (filterByTags, filterByText))
else:
self.setFilter(filterByTags)
logging.debug('knowledgeModel.filter = "%s"' % self.filter())
self.select()
def addNewKnowledge(self, title, description):
self.setFilter("")
self.setSort(0, QtCore.Qt.SortOrder.AscendingOrder)
self.select()
record = QtSql.QSqlRecord()
record.append(QtSql.QSqlField("ID"))
record.append(QtSql.QSqlField("title"))
record.append(QtSql.QSqlField("description"))
record.append(QtSql.QSqlField("author"))
record.setValue(1, title)
record.setValue(2, description)
record.setValue(3, "jan")
if not self.insertRecord(self.rowCount() - 1, record):
raise "Knowledge could not be inserted."
return int(self.record(self.rowCount() - 1).value(0))
def updateKnowledge(self, row, title, description, newTagIDs):
knowledgeID = self.record(row).value("ID")
self.setData(self.index(row, self.fieldIndex("title")), title)
self.setData(self.index(row, self.fieldIndex("description")), description)
self.submitAll()
logging.debug("updateKnowledge: knowledgeID=%d" % knowledgeID)
oldTagIds = set(self.getTagIDsFromKnowledgeID(knowledgeID))
newTagIDs = set(newTagIDs)
tagIDsToAdd = newTagIDs - oldTagIds
tagIDsToRemove = oldTagIds - newTagIDs
logging.debug("OldTagIDs: %s" % str(oldTagIds))
logging.debug("NewTagIDs: %s" % str(newTagIDs))
logging.debug("TagIDsToAdd: %s" % str(tagIDsToAdd))
logging.debug("TagIDsToRemove: %s" % str(tagIDsToRemove))
for tagID in tagIDsToAdd:
self.addTagForKnowledge(knowledgeID, tagID)
for tagID in tagIDsToRemove:
self.removeTagFromKnowledge(knowledgeID, tagID)
def removeTagFromKnowledge(self, knowledgeID, tagID):
self.knowledgeTagsModel.removeTagFromKnowledge(knowledgeID, tagID)
def addTagForKnowledge(self, knowledgeID, tagID):
self.knowledgeTagsModel.addTagForKnowledge(knowledgeID, tagID)
def getTagIDsFromKnowledgeID(self, knowledgeID):
return self.knowledgeTagsModel.getTagIDsFromKnowledgeID(knowledgeID)
def reload(self, currentTag=None, filterText=None):
if currentTag is not None:
tagIDs = [currentTag]
tagIDs.extend(self.tagModel.getAllChildIDs(currentTag))
else:
tagIDs = []
logging.debug("reload(): tagIDs = %s" % str(tagIDs))
self.setFilterByTagIDsAndText(tagIDs, filterText)
self.select()