def __init__(self, iface, layer, parent=None): QWidget.__init__(self, parent) self.iface = iface self.layer = layer uri = QgsDataSourceURI(layer.source()) dbplugin = None db = None if layer.dataProvider().name() == 'postgres': dbplugin = createDbPlugin('postgis', 'postgres') elif layer.dataProvider().name() == 'spatialite': dbplugin = createDbPlugin('spatialite', 'spatialite') elif layer.dataProvider().name() == 'oracle': dbplugin = createDbPlugin('oracle', 'oracle') elif layer.dataProvider().name() == 'virtual': dbplugin = createDbPlugin('vlayers', 'virtual') elif layer.dataProvider().name() == 'ogr': dbplugin = createDbPlugin('gpkg', 'gpkg') if dbplugin: dbplugin.connectToUri(uri) db = dbplugin.db self.dbplugin = dbplugin self.db = db self.filter = "" self.allowMultiColumnPk = isinstance(db, PGDatabase) # at the moment only PostgreSQL allows a primary key to span multiple columns, spatialite doesn't self.aliasSubQuery = isinstance(db, PGDatabase) # only PostgreSQL requires subqueries to be aliases self.setupUi(self) self.setWindowTitle( u"%s - %s [%s]" % (self.windowTitle(), db.connection().connectionName(), db.connection().typeNameString())) self.defaultLayerName = 'QueryLayer' if self.allowMultiColumnPk: self.uniqueColumnCheck.setText(self.trUtf8("Column(s) with unique values")) else: self.uniqueColumnCheck.setText(self.trUtf8("Column with unique values")) self.editSql.setFocus() self.editSql.setVerticalScrollBarPolicy(Qt.ScrollBarAsNeeded) self.editSql.setMarginVisible(True) self.initCompleter() # allow copying results copyAction = QAction("copy", self) self.viewResult.addAction(copyAction) copyAction.setShortcuts(QKeySequence.Copy) copyAction.triggered.connect(self.copySelectedResults) self.btnExecute.clicked.connect(self.executeSql) self.btnSetFilter.clicked.connect(self.setFilter) self.btnClear.clicked.connect(self.clearSql) self.presetStore.clicked.connect(self.storePreset) self.presetDelete.clicked.connect(self.deletePreset) self.presetCombo.activated[str].connect(self.loadPreset) self.presetCombo.activated[str].connect(self.presetName.setText) self.updatePresetsCombobox() self.geomCombo.setEditable(True) self.geomCombo.lineEdit().setReadOnly(True) self.uniqueCombo.setEditable(True) self.uniqueCombo.lineEdit().setReadOnly(True) self.uniqueModel = QStandardItemModel(self.uniqueCombo) self.uniqueCombo.setModel(self.uniqueModel) if self.allowMultiColumnPk: self.uniqueCombo.setItemDelegate(QStyledItemDelegate()) self.uniqueModel.itemChanged.connect(self.uniqueChanged) # react to the (un)checking of an item self.uniqueCombo.lineEdit().textChanged.connect(self.uniqueTextChanged) # there are other events that change the displayed text and some of them can not be caught directly self.layerTypeWidget.hide() # show if load as raster is supported #self.loadLayerBtn.clicked.connect(self.loadSqlLayer) self.updateLayerBtn.clicked.connect(self.updateSqlLayer) self.getColumnsBtn.clicked.connect(self.fillColumnCombos) self.queryBuilderFirst = True self.queryBuilderBtn.setIcon(QIcon(":/db_manager/icons/sql.gif")) self.queryBuilderBtn.clicked.connect(self.displayQueryBuilder) self.presetName.textChanged.connect(self.nameChanged) # Update from layer # Fisrtly the SQL from QgsDataSourceURI table sql = uri.table() if uri.keyColumn() == '_uid_': match = re.search('^\(SELECT .+ AS _uid_,\* FROM \((.*)\) AS _subq_.+_\s*\)$', sql, re.S) if match: sql = match.group(1) else: match = re.search('^\((SELECT .+ FROM .+)\)$', sql, re.S) if match: sql = match.group(1) self.editSql.setText(sql) self.executeSql() # Then the columns self.geomCombo.setCurrentIndex(self.geomCombo.findText(uri.geometryColumn(), Qt.MatchExactly)) if uri.keyColumn() != '_uid_': self.uniqueColumnCheck.setCheckState(Qt.Checked) if self.allowMultiColumnPk: itemsData = uri.keyColumn().split(',') for item in self.uniqueModel.findItems("*", Qt.MatchWildcard): if item.data() in itemsData: item.setCheckState(Qt.Checked) else: keyColumn = uri.keyColumn() if self.uniqueModel.findItems(keyColumn): self.uniqueCombo.setEditText(keyColumn) # Finally layer name, filter and selectAtId self.layerNameEdit.setText(layer.name()) self.filter = uri.sql() if uri.selectAtIdDisabled(): self.avoidSelectById.setCheckState(Qt.Checked)
def __init__(self, iface, db, parent=None): QWidget.__init__(self, parent) self.iface = iface self.db = db self.filter = "" self.allowMultiColumnPk = isinstance( db, PGDatabase ) # at the moment only PostGIS allows a primary key to span multiple columns, spatialite doesn't self.setupUi(self) self.setWindowTitle( u"%s - %s [%s]" % (self.windowTitle(), db.connection().connectionName(), db.connection().typeNameString())) self.defaultLayerName = 'QueryLayer' if self.allowMultiColumnPk: self.uniqueColumnCheck.setText( self.trUtf8("Column(s) with unique values")) else: self.uniqueColumnCheck.setText( self.trUtf8("Column with unique values")) self.editSql.setFocus() self.editSql.setVerticalScrollBarPolicy(Qt.ScrollBarAsNeeded) self.initCompleter() # allow to copy results copyAction = QAction("copy", self) self.viewResult.addAction(copyAction) copyAction.setShortcuts(QKeySequence.Copy) copyAction.triggered.connect(self.copySelectedResults) self.btnExecute.clicked.connect(self.executeSql) self.btnSetFilter.clicked.connect(self.setFilter) self.btnClear.clicked.connect(self.clearSql) self.presetStore.clicked.connect(self.storePreset) self.presetDelete.clicked.connect(self.deletePreset) self.presetCombo.activated[str].connect(self.loadPreset) self.presetCombo.activated[str].connect(self.presetName.setText) self.updatePresetsCombobox() self.geomCombo.setEditable(True) self.geomCombo.lineEdit().setReadOnly(True) self.uniqueCombo.setEditable(True) self.uniqueCombo.lineEdit().setReadOnly(True) self.uniqueModel = QStandardItemModel(self.uniqueCombo) self.uniqueCombo.setModel(self.uniqueModel) if self.allowMultiColumnPk: self.uniqueCombo.setItemDelegate(QStyledItemDelegate()) self.uniqueModel.itemChanged.connect( self.uniqueChanged) # react to the (un)checking of an item self.uniqueCombo.lineEdit().textChanged.connect( self.uniqueTextChanged ) # there are other events that change the displayed text and some of them can not be caught directly # hide the load query as layer if feature is not supported self._loadAsLayerAvailable = self.db.connector.hasCustomQuerySupport() self.loadAsLayerGroup.setVisible(self._loadAsLayerAvailable) if self._loadAsLayerAvailable: self.layerTypeWidget.hide() # show if load as raster is supported self.loadLayerBtn.clicked.connect(self.loadSqlLayer) self.getColumnsBtn.clicked.connect(self.fillColumnCombos) self.loadAsLayerGroup.toggled.connect(self.loadAsLayerToggled) self.loadAsLayerToggled(False) self._createViewAvailable = self.db.connector.hasCreateSpatialViewSupport( ) self.btnCreateView.setVisible(self._createViewAvailable) if self._createViewAvailable: self.btnCreateView.clicked.connect(self.createView) self.queryBuilderFirst = True self.queryBuilderBtn.setIcon(QIcon(":/db_manager/icons/sql.gif")) self.queryBuilderBtn.clicked.connect(self.displayQueryBuilder) self.presetName.textChanged.connect(self.nameChanged)