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
// widget_switch.ysl2
widget_desc("ListSwitch") {
longdesc
||
ListSwitch widget displays one item of an HMI:List depending on value of
given variable. Main element of the widget must be a clone of the list or
of an item of that list.
Given variable's current value is compared to list items
label. For exemple if given variable type
is HMI_INT and value is 1, then item with label '1' will be displayed.
If matching variable of type HMI_STRING, then no quotes are needed.
For exemple, 'hello' match HMI_STRING 'hello'.
||
shortdesc > Displays item of an HMI:List whose label matches value.
path name="value" accepts="HMI_INT,HMI_STRING" > value to compare to labels
}
widget_class("ListSwitch"){
||
frequency = 5;
||
}
widget_defs("ListSwitch") {
// cloned element must be part of a HMI:List or a HMI:List
const "targetid", "substring-after($hmi_element/@xlink:href,'#')";
const "from_list", "$hmi_lists[(@id | */@id) = $targetid]";
||
dispatch: function(value) {
this.element.href.baseVal = "#"+hmi_widgets["«$from_list/@id»"].items[value];
},
||
}