Fixed and changed semantic of open relation

Now relations are always named with the default name.

Multiple relations can be opened at once from the GUI.

Removed redundant code to select the default name for a relation.

Using system dependant splitter to determine the default name for a relation.

relational_gui.py

@@ -23,6 +23,7 @@ import sys
 import os
 import os.path
 import getopt
+
 from relational import relation, parser
 version = "2.0"
 
@@ -85,8 +86,6 @@ if __name__ == "__main__":
 
         import sip  # needed on windows
         from PyQt5 import QtGui, QtWidgets
-        #FIXME remove this
-        from relational_gui import maingui, guihandler, about, surveyForm
         try:
             from relational_gui import maingui, guihandler, about, surveyForm
         except:
@@ -108,16 +107,13 @@ if __name__ == "__main__":
         ui.setupUi(form)
         form.restore_settings()
 
-        for i in range(len(files)):
+        m = enumerate(map(os.path.isfile, files))
-            if not os.path.isfile(files[i]):
+        invalid = ' '.join((files[i[0]] for i in (filter(lambda x: not x[1], m))))
-                print ("%s is not a file" % files[i],file=sys.stderr)
+        if invalid:
-                printhelp(12)
+            print ("%s: not a file" % invalid,file=sys.stderr)
-            f = files[i].split('/')
+            printhelp(12)
-            defname = f[len(f) - 1].lower()
+        if len(files):
-            if defname.endswith(".csv"):  # removes the extension
+            form.loadRelation(files)
-                defname = defname[:-4]
-            print ('Loading file "%s" with name "%s"' % (files[i], defname))
-            form.loadRelation(files[i], defname)
 
         form.show()
         sys.exit(app.exec_())

relational_gui/guihandler.py

@@ -18,6 +18,7 @@
 # author Salvo "LtWorf" Tomaselli <tiposchi@tiscali.it>
 import sys
 import os
+import os.path
 
 from PyQt5 import QtCore, QtWidgets, QtWidgets
 
@@ -276,7 +277,6 @@ class relForm(QtWidgets.QMainWindow):
         event.accept()
 
     def save_settings(self):
-        print('save')
         self.settings.setValue('maingui/geometry', self.saveGeometry())
         self.settings.setValue('maingui/windowState', self.saveState())
 
@@ -306,50 +306,40 @@ class relForm(QtWidgets.QMainWindow):
             ui.setupUi(self.About)
         self.About.show()
 
-    def loadRelation(self, filename=None, name=None):
+    def loadRelation(self, filenames=None):
         '''Loads a relation. Without parameters it will ask the user which relation to load,
         otherwise it will load filename, giving it name.
         It shouldn't be called giving filename but not giving name.'''
         # Asking for file to load
-        if filename == None:
+        if not filenames:
-            filename = QtWidgets.QFileDialog.getOpenFileName(self, QtWidgets.QApplication.translate(
+            f = QtWidgets.QFileDialog.getOpenFileNames(self, QtWidgets.QApplication.translate(
                 "Form", "Load Relation"), "", QtWidgets.QApplication.translate("Form", "Relations (*.csv);;Text Files (*.txt);;All Files (*)"))
-            filename = compatibility.get_filename(filename)
+            filenames = f[0]
 
-        # Default relation's name
+        for f in filenames:
-        f = filename.split('/')  # Split the full path
+            # Default relation's name
-        defname = f[len(f) - 1].lower()  # Takes only the lowercase filename
+            name = os.path.basename(f).lower()
 
-        if len(defname) == 0:
+            if len(name) == 0:
-            return
-
-        if (defname.endswith(".csv")):  # removes the extension
-            defname = defname[:-4]
-
-        if name == None:  # Prompt dialog to insert name for the relation
-            res = QtWidgets.QInputDialog.getText(
-                self, QtWidgets.QApplication.translate("Form", "New relation"), QtWidgets.QApplication.translate(
-                    "Form", "Insert the name for the new relation"),
-                QtWidgets.QLineEdit.Normal, defname)
-            if res[1] == False or len(res[0]) == 0:
                 return
 
-            name = compatibility.get_py_str(res[0])
+            if (name.endswith(".csv")):  # removes the extension
+                name = name[:-4]
 
-        if not rtypes.is_valid_relation_name(name):
+            if not rtypes.is_valid_relation_name(name):
-            r = QtWidgets.QApplication.translate(
+                r = QtWidgets.QApplication.translate(
-                "Form", str("Wrong name for destination relation: %s." % name))
+                    "Form", str("Wrong name for destination relation: %s." % name))
-            QtWidgets.QMessageBox.information(
+                QtWidgets.QMessageBox.information(
-                self, QtWidgets.QApplication.translate("Form", "Error"), r)
+                    self, QtWidgets.QApplication.translate("Form", "Error"), r)
-            return
+                continue
 
-        try:
+            try:
-            self.relations[name] = relation.relation(filename)
+                self.relations[name] = relation.relation(f)
-        except Exception as e:
+            except Exception as e:
-            print (e)
+                print (e)
-            QtWidgets.QMessageBox.information(None, QtWidgets.QApplication.translate("Form", "Error"), "%s\n%s" %
+                QtWidgets.QMessageBox.information(None, QtWidgets.QApplication.translate("Form", "Error"), "%s\n%s" %
                                               (QtWidgets.QApplication.translate("Form", "Check your query!"), e.__str__()))
-            return
+                continue
 
         self.updateRelations()