[processing] add ability to choose encoding when importing into PostG…

…IS (fix #14687)

python/plugins/processing/algs/qgis/ImportIntoPostGIS.py

@@ -51,6 +51,7 @@ class ImportIntoPostGIS(GeoAlgorithm):
     LOWERCASE_NAMES = 'LOWERCASE_NAMES'
     DROP_STRING_LENGTH = 'DROP_STRING_LENGTH'
     PRIMARY_KEY = 'PRIMARY_KEY'
+    ENCODING = 'ENCODING'
 
     def defineCharacteristics(self):
         self.name, self.i18n_name = self.trAlgorithm('Import into PostGIS')
@@ -69,6 +70,9 @@ def defineCharacteristics(self):
                                               self.tr('Primary key field'), self.INPUT, optional=True))
         self.addParameter(ParameterString(self.GEOMETRY_COLUMN,
                                           self.tr('Geometry column'), 'geom'))
+        self.addParameter(ParameterString(self.ENCODING,
+                                          self.tr('Encoding'), 'UTF-8',
+                                          optional=True))
         self.addParameter(ParameterBoolean(self.OVERWRITE,
                                            self.tr('Overwrite'), True))
         self.addParameter(ParameterBoolean(self.CREATEINDEX,
@@ -86,6 +90,7 @@ def processAlgorithm(self, progress):
         convertLowerCase = self.getParameterValue(self.LOWERCASE_NAMES)
         dropStringLength = self.getParameterValue(self.DROP_STRING_LENGTH)
         primaryKeyField = self.getParameterValue(self.PRIMARY_KEY)
+        encoding = self..getParameterValue(self.ENCODING)
         settings = QSettings()
         mySettings = '/PostgreSQL/connections/' + connection
         try:
@@ -138,6 +143,9 @@ def processAlgorithm(self, progress):
         else:
             uri.setDataSource(schema, table, geomColumn, '')
 
+        if encoding:
+            layer.setProviderEncoding(encoding)
+
         (ret, errMsg) = QgsVectorLayerImport.importLayer(
             layer,
             uri.uri(),