beremiz

py_ext: fix CSV Writer

18 months ago, Edouard Tisserant
d2f5eb3c7d6e
py_ext: fix CSV Writer

fix POU logic :
- SAVE is a BOOL
- invocation of py_eval on rising edge of SAVE
- remove save python argument

fix python:
- use no encoding for file open (python2)
- re-use detected dialect if any
- use no "rt+" and truncate since no need to re-sniff dialect for output file
- return "OK" instead of "#SUCCESS", preventing POU logic to ACK result
- support creating new line if writing just after last line
- support appending data on short rows

fix example:
- use a HMI:Button to trigger CSV write instead of HMI:Input +1
- reload CSVs on on each new CSV opened in file browser
- add display of CSV write output
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# See COPYING file for copyrights details.
from functools import partial
import wx
from controls.IDBrowser import IDBrowser
class SchemeEditor(wx.Panel):
def __init__(self, scheme, parent, *args, **kwargs):
self.txtctrls = {}
wx.Panel.__init__(self, parent, *args, **kwargs)
self.fieldsizer = wx.FlexGridSizer(cols=2, hgap=10, vgap=10)
if self.EnableIDSelector:
self.model = self.model + [("ID", _("ID:"))]
for tag, label in self.model:
txtctrl = wx.TextCtrl(parent=self, size=wx.Size(200, -1))
self.txtctrls[tag] = txtctrl
for win, flag in [
(wx.StaticText(self, label=label),
wx.ALIGN_CENTER_VERTICAL),
(txtctrl, wx.GROW)]:
self.fieldsizer.Add(win, flag=flag)
self.fieldsizer.AddSpacer(20)
if self.EnableIDSelector:
self.mainsizer = wx.FlexGridSizer(cols=2, hgap=10, vgap=10)
self.mainsizer.Add(self.fieldsizer)
self.idselector = IDBrowser(
self, parent.ctr,
# use a callafter, as editor can be deleted by calling SetURI
partial(wx.CallAfter, parent.SetURI),
self.txtctrls["ID"].SetValue)
self.mainsizer.Add(self.idselector)
self.SetSizer(self.mainsizer)
else:
self.SetSizer(self.fieldsizer)
def SetFields(self, fields):
for tag, _label in self.model:
self.txtctrls[tag].SetValue(fields[tag])
def GetFields(self):
return {tag: self.txtctrls[tag].GetValue() for tag, _label in self.model}