python - 对象 ListView Python : Filtering

Question

我正在尝试根据数据的特定列中的文本值来过滤对象 ListView 。我不知道如何正确构建过滤器。我一直在指:

http://objectlistview.sourceforge.net/python/features.html http://objectlistview.sourceforge.net/python/majorClasses.html

我能够让 Filter.Head(n) 成功工作但无法让 Filter.TextSearch(objectListView, columns=(), text="") 工作，因为我不明白参数类型是什么假设是。

我写了下面的代码:

def OnFilterMeter(self,event):
    list = self.exception_panel.col_list   ## The lenght of my column list
    col  = list[len(list)-1]     ## I want to search the last column 
    meter_flt = Filter.TextSearch(self.exception_panel,columns = (col), text = "10") ## Create filter to find string 10 in last column
    self.exception_panel.SetFilter(meter_flt)
    self.exception_panel.populate()

我不明白为什么这不起作用。该程序在尝试再次填充 ListView 时不会过滤列表。至少它应该显示所有空白，因为它找不到任何等于“10”的项目。请帮忙。谢谢

下面是我的代码:

class Display_Manager(wx.Frame):
def __init__(self, parent, id, title):
    wx.Frame.__init__(self, parent, -1, title)          
    self.exception_panel =  Exception_Display(self,0)
    # self.exception_panel2 = Exception_Display(self,1)
    ## Setup FileMenu Bar Setup
    filemenu= wx.Menu()                                                                             ## Create Menu Bar
    filemenu.Append(ID_LOG,"Login","Login as user with password.")                                  ## Clicking shoudl load a single dailyi report which user selects
    filemenu.Append(ID_LOAD,"Load Report","Load Daliy Exception Report")                            ## Clicking shoudl load a single dailyi report which user selects
    filemenu.Append(ID_LOADS,"Load All","Load All Daliy Exception Reports")                         ## Clicking should load all daily reports in a directory which user selects
    filemenu.Append(ID_REFRESH,"Refresh DB","Refresh Database. Overwrites any un saved data.")      ## Clicking should refreseh the database and overwrite any unsaved changes
    filemenu.Append(ID_SAVE,"Save DB","Saves and commits any changes to database.")                 ## Clicking will save and commit any changes or new data to the database
    filemenu.Append(ID_EXIT,"E&xit"," Terminate the program")                                       ## exit the program
    ## Setup Edit Menu Bar
    editmenu = wx.Menu()
    editmenu.Append(ID_ADD,"Add","Add Exception")
    editmenu.Append(ID_DELETE,"Delete","Delete Exception")
    editmenu.Append(ID_UNDO,"Stepback DB","Go back to a previous version of the database")
    editmenu.Append(ID_REDO,"Stepfoward DB","Go foward to a previous version of the database")
    ## Setup Report Menu
    reportmenu = wx.Menu()
    reportmenu.Append(ID_REPORT,"Exception Report","Generate an Excel Report of selected exceptions.")
    reportmenu.Append(ID_REPORT2,"Meter Report","Generate an Excel Report of selected exceptions.")
    reportmenu.Append(ID_REPORT3,"Transformer Report","Generate an Excel Report of selected exceptions.")
    ## Setup Bucket Menu
    bucketmenu = wx.Menu()
    bucketmenu.Append(ID_METERPROB,"Meter Problem","Place the meter in the meter problem bucket.")
    bucketmenu.Append(ID_LOWVOLT,"Investigate Low Voltage","Place the meter in the investigate bucket.")
    bucketmenu.Append(ID_TURNS,"Turns Ratio","Place the meter in the turns ratio bucket.")
    ## Setup Configure Menu Menu
    configmenu = wx.Menu()
    configmenu.Append(ID_FILTER,"Set Filters","Filter by district and company.")
    configmenu.Append(ID_SAVEFIL,"Save Filters","Save Filters for Later use.")
    configmenu.Append(ID_LOADFIL,"Load Filters","Load Filters for Later use.")

    ## Add file menu bar
    menuBar = wx.MenuBar()
    menuBar.Append(filemenu,"&File")
    menuBar.Append(editmenu, "&Edit")
    menuBar.Append(reportmenu, "&Reports")
    menuBar.Append(configmenu, "&Config")
    menuBar.Append(bucketmenu, "&Bucket")
    self.SetMenuBar(menuBar)

    ## Create Toolbar
    tb = self.CreateToolBar( wx.TB_HORIZONTAL | wx.NO_BORDER | 
    wx.TB_FLAT | wx.TB_TEXT)
    tb.AddSimpleTool(10, wx.Bitmap('images/database.png'), 'Save Database')
    tb.AddSimpleTool(20, wx.Bitmap('images/excel.png'), 'Get Quick Excel Report')
    tb.AddSimpleTool(70, wx.Bitmap('images/analyze.png'), 'Analyze Selected Exceptions')
    tb.AddSimpleTool(71, wx.Bitmap('images/refresh.png'), 'Refresh Selected Relationships')
    tb.AddSeparator()
    tb.AddSimpleTool(30, wx.Bitmap('images/today.png'), 'Filter only the latest data.')
    tb.AddSimpleTool(40, wx.Bitmap('images/all_time.png'), 'Filter All Data from all time')
    tb.AddSimpleTool(41, wx.Bitmap('images/date_range.png'), 'Select a date range to view data over')
    tb.AddSeparator()
    tb.AddSimpleTool(50, wx.Bitmap('images/AMI_Meter.png'), 'Bucket as meter problem')
    tb.AddSimpleTool(60, wx.Bitmap('images/violation.png'), 'Bucket to District')
    tb.AddSimpleTool(61, wx.Bitmap('images/turns.png'), 'Bucket Turns Ratio')
    tb.AddSimpleTool(62, wx.Bitmap('images/plan.png'), 'Bucket for further review for planning engineer')
    tb.AddSeparator()
    tb.AddSimpleTool(63, wx.Bitmap('images/cyme.png'), 'Load CYME model for specific meter')
    tb.AddSimpleTool(64, wx.Bitmap('images/relate_dot.png'), 'Cluster & Relate Meter Exceptions')
    tb.AddSeparator()
    tb.AddSimpleTool(65, wx.Bitmap('images/bucket_m.png'), 'Filter Meter Bucket')
    tb.AddSimpleTool(66, wx.Bitmap('images/bucket_v.png'), 'Filter Violation Bucket')
    tb.AddSimpleTool(67, wx.Bitmap('images/bucket_t.png'), 'Filter Turns Ratio Bucket')
    tb.AddSimpleTool(68, wx.Bitmap('images/bucket_p.png'), 'Filter Planning Bucket')
    tb.SetToolBitmapSize((84,84))
    tb.Realize()




    self.Bind(wx.EVT_TOOL,self.OnRefresh,id =71)
    self.Bind(wx.EVT_TOOL,self.OnAnalyze,id =70)
    self.Bind(wx.EVT_TOOL,self.OnSave,id =10)

    self.Bind(wx.EVT_TOOL,self.OnBucketMeter,id =50)
    self.Bind(wx.EVT_TOOL,self.OnVioMeter,id =60)
    self.Bind(wx.EVT_TOOL,self.OnTurnsMeter,id =61)
    self.Bind(wx.EVT_TOOL,self.OnPlanMeter,id =62)

    self.Bind(wx.EVT_TOOL,self.OnFilterMeter,id =65)
    # self.Bind(wx.EVT_TOOL,self.OnFilterMeter,id =66)
    # self.Bind(wx.EVT_TOOL,self.OnFilterMeter,id =67)
    # self.Bind(wx.EVT_TOOL,self.OnFilterMeter,id =68)

    ## Create Sizers
    # self.main_sizer = wx.BoxSizer(wx.VERTICAL)
    # self.top_sizer = wx.BoxSizer(wx.HORIZONTAL)
    # self.bottom_sizer = wx.BoxSizer(wx.HORIZONTAL)
    # self.main_sizer.Add(self.top_sizer,0,wx.EXPAND)
    # self.main_sizer.Add(self.bottom_sizer,0,wx.EXPAND)

    ## Show the frame
    # self.SetSizer(self.main_sizer)

    self.Center()
    self.Show(True)


def OnSave(self,event):
    session.commit()
    print "ON Save"
def OnRefresh(self,event): 
    self.exception_panel.populate()
    self.ColorBuckets()
    print "OnRelate"
def OnAnalyze(self,event): 
    objectList = self.exception_panel.GetSelectedObjects()          ## Get list of selected objects to relate in the database
    for object in objectList:
        print object
        object.calculate()
    # print self.GetValueAt(self.GetObjectAt(event.rowIndex),event.subItemIndex)
    # self.temp_value = event.editor.GetValue()
    self.exception_panel.populate()
    print "OnAnalze"
def OnFilterDate1(self,event):
    print "on Filter date"
def OnFilterDate2(self,event):
    print "on Filter date"
def OnFilterDate3(self,event):
    print "on Filter date"

def OnFilterMeter(self,event):
    list = self.exception_panel.col_list
    col  = list[len(list)-1]
    # meter_flt = Filter.Head(10)
    meter_flt = Filter.TextSearch(self.exception_panel,columns = (col), text = "10")
    self.exception_panel.SetFilter(meter_flt)
    self.exception_panel.populate()
    # self.exception_panel.Refresh()


    # self.exception_panel.populate()

    # self.exception_panel.SetObjects(qrty_meters_excpt)
    # self.exception_panel.populate()

    print "On Filter Meter"

def OnBucketMeter(self,event):
    objectList = self.exception_panel.GetSelectedObjects()
    for object in objectList:
        print object
        object.known_flags = 20         ## Meter Mismatch Flag Known ***ffa500
    self.exception_panel.populate()
    self.ColorBuckets()
def OnVioMeter(self,event):
    objectList = self.exception_panel.GetSelectedObjects()
    for object in objectList:
        object.known_flags = 10         ## Meter Mismatch Flag Known ***ffa500
    self.exception_panel.populate()
    self.ColorBuckets() 
def OnTurnsMeter(self,event):
    objectList = self.exception_panel.GetSelectedObjects()
    for object in objectList:
        object.known_flags = 30         ## Meter Mismatch Flag Known ***ffa500
    self.exception_panel.populate()
    self.ColorBuckets()
def OnPlanMeter(self,event):
    objectList = self.exception_panel.GetSelectedObjects()
    for object in objectList:
        object.known_flags = 40         ## Meter Mismatch Flag Known ***ffa500
    self.exception_panel.populate()
    self.ColorBuckets() 

def ColorBuckets(self):         ## Color All Buckets according to knowflags
    ## Query the session for only items that have know_flags greate than 0
    qrty_color_buckets = session.query(Exception).filter(Exception.known_flags != "").all()
    print qrty_color_buckets
    for exception in qrty_color_buckets:
        print exception.known_flags == 10
        flag = int(exception.known_flags)       ## alias the flag
        if flag == 20:      ## Meter Mismatch
            self.exception_panel.SetItemBackgroundColour(self.exception_panel.GetIndexOf(exception),'#ffa500')      ## Oranage
        elif flag == 10:        ## Violation
            self.exception_panel.SetItemBackgroundColour(self.exception_panel.GetIndexOf(exception),'#ff0000')      ## Red
        elif flag == 30:        ## Turns Ratio
            self.exception_panel.SetItemBackgroundColour(self.exception_panel.GetIndexOf(exception),'#0066CC')      ## Blue
        elif flag == 40:    ## Plan referal
            self.exception_panel.SetItemBackgroundColour(self.exception_panel.GetIndexOf(exception),'#FFFF00')      ## Yellow

请看函数OnFilterMeter。

Answer 1

以下对我有用，它在第二列进行搜索，并且只显示一个匹配的条目。

# -*- coding: utf-8 -*-
import datetime
import wx
import wx.lib.sized_controls as SC
import ObjectListView as OLV

class MyData:
    def __init__(self, year, month, day, level, sets, reps):
        self.date = datetime.date(year, month, day)
        self.level = level
        self.sets = sets
        self.reps = reps

    def GetDate(self):
        return self.date

    def GetLevel(self):
        return self.level

    def GetSets(self):
        return self.sets

    def GetRepetitions(self):
        return self.reps


class MyListCtrl(OLV.GroupListView):
    def __init__(self, parent):
        super(MyListCtrl, self).__init__(parent, wx.ID_ANY, style=wx.LC_REPORT)
        self.SetColumns(self._ColumnDefinitions())
        meter_flt = OLV.Filter.TextSearch(self, columns=self.columns[2:3],
                                          text="7")
        self.SetFilter(meter_flt)
        self.SetObjects(self._DataObjects())

    def _DataObjects(self):
        return [MyData(2010,10,8, 1, 2, 3),
                MyData(2005,10,10, 7, 2, 3),
                MyData(2010,10,3, 2, 2, 3),
                MyData(2012,10,10, 1, 2, 3),
                MyData(2014,10,10, 1, 2, 3)
                ]

    def _ColumnDefinitions(self):
        return [OLV.ColumnDefn('Date', valueGetter='GetDate', groupKeyGetter='GetDate'),
                OLV.ColumnDefn('Level', valueGetter='GetLevel', width=150),
                OLV.ColumnDefn('Sets', valueGetter='GetSets', width=100, groupKeyGetter='GetSets'),
                OLV.ColumnDefn('Reps', valueGetter='GetRepetitions', width=200)]


class MyFrame(SC.SizedFrame):
    def __init__(self):
        super(MyFrame, self).__init__(None)
        pane = self.GetContentsPane()

        olv = MyListCtrl(pane)
        olv.SetSizerProps(expand=True, proportion=1)


if __name__ == '__main__':
    import wx.lib.mixins.inspection as WIT
    app = WIT.InspectableApp()
    win = MyFrame()
    win.Show()
    app.MainLoop()