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 connectors.ERPC_URI import schemes_desc, per_scheme_model
from connectors.SchemeEditor import SchemeEditor
## Scheme list for the dialog's combobox
Schemes = list(zip(*schemes_desc))[0]
## Specialized SchemeEditor panel for ERPC
class ERPC_dialog(SchemeEditor):
def __init__(self, scheme, *args, **kwargs):
self.model, self.EnableIDSelector, self.parser, self.builder = per_scheme_model[scheme]
SchemeEditor.__init__(self, scheme, *args, **kwargs)
def SetLoc(self, loc):
self.SetFields(self.parser(loc))
def GetLoc(self):
return self.builder(self.GetFields())