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- apparently it works, needs further testing

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git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@319 014f5005-505e-4b48-8d0a-63407b615a7c
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LtWorf
2011-10-08 22:35:24 +00:00
parent f02f54d58d
commit c5af23d05c
5 changed files with 29 additions and 48 deletions
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53
relational_gui/guihandler.py
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@@ -68,27 +68,26 @@ class relForm(QtGui.QMainWindow):
'''Performs all the possible optimizations on the query'''
self.undo=self.ui.txtQuery.text() #Storing the query in undo list
query=compatibility.get_py_str(self.ui.txtQuery.text()).encode("utf-8")
query=compatibility.get_py_str(self.ui.txtQuery.text())
result=optimizer.optimize_all(query,self.relations)
compatibility.set_utf8_text(self.ui.TxtQuery,result)
compatibility.set_utf8_text(self.ui.txtQuery,result)
def resumeHistory(self,item):
itm=compatibility.get_py_str(item.text()).split(' = ',1)
compatibility.set_utf8_text(self.ui.txtResult,itm[0])
compatibility.set_utf8_text(self.ui.txtQuery,itm[1])
compatibility.set_utf8_text(self.ui.txtQuery,itm[1])
def execute(self):
'''Executes the query'''
query=compatibility.get_py_str(self.ui.txtQuery.text())
res_rel=compatibility.get_py_str(self.ui.txtResult.text())#result relation's name
if not rtypes.is_valid_relation_name(res_rel):
QtGui.QMessageBox.information(self,QtGui.QApplication.translate("Form", "Error"),QtGui.QApplication.translate("Form", "Wrong name for destination relation."))
return
try:
#Converting string to utf8 and then from qstring to normal string
expr=parser.parse(query)#Converting expression to python code
@@ -103,16 +102,11 @@ class relForm(QtGui.QMainWindow):
print e
QtGui.QMessageBox.information(None,QtGui.QApplication.translate("Form", "Error"),"%s\n%s" % (QtGui.QApplication.translate("Form", "Check your query!"),e.__str__()) )
return
#Query was executed normally
#TODO fix THAT
#history_item=QtCore.QString()
#history_item.append(self.ui.txtResult.text())
#history_item.append(u' = ')
#history_item.append(self.ui.txtQuery.text())
#hitem=QtGui.QListWidgetItem(None,0)
#hitem.setText(history_item)
#self.ui.lstHistory.addItem (hitem)
#self.ui.lstHistory.setCurrentItem(hitem)
#Adds to history
item='%s = %s' % (compatibility.get_py_str(self.ui.txtResult.text()),compatibility.get_py_str(self.ui.txtQuery.text()))
item=unicode(item.decode('utf-8'))
compatibility.add_list_item(self.ui.lstHistory,item)
self.qcounter+=1
compatibility.set_utf8_text(self.ui.txtResult,u"_last%d"% self.qcounter) #Sets the result relation name to none
@@ -226,33 +220,6 @@ class relForm(QtGui.QMainWindow):
self.updateRelations()
def insertTuple(self):
'''Shows an input dialog and inserts the inserted tuple into the selected relation'''
res=QtGui.QInputDialog.getText(self, QtGui.QApplication.translate("Form", "New relation"),QtGui.QApplication.translate("Form", "Insert the values, comma separated"),
QtGui.QLineEdit.Normal,"")
if res[1]==False:
return
t=[]
for i in str(res[0].toUtf8()).split(","):
t.append(i.strip())
if self.selectedRelation!=None and self.selectedRelation.insert(t) > 0:
self.showRelation(self.selectedRelation)
return
def deleteTuple(self):
'''Shows an input dialog and removes the tuples corresponding to the condition.'''
res=QtGui.QInputDialog.getText(self, QtGui.QApplication.translate("Form", "New relation"),QtGui.QApplication.translate("Form", "Remove tuples: insert where condition"),
QtGui.QLineEdit.Normal,"")
if res[1]==False:
return
if self.selectedRelation!=None and self.selectedRelation.delete(str(res[0].toUtf8())) > 0:
self.showRelation(self.selectedRelation)
return
def addProduct(self):
self.addSymbolInQuery(u"*")
def addDifference(self):