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plcopen/yslt_noindent.yml2
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Fri, 24 Aug 2018 13:41:43 +0300
changeset 2297 96ca6b056c55
parent 1936 b85b13b1c2ec
permissions -rw-r--r--
Proper fix for error 'object has no attribute 'getSlave' in EtherCAT extension

traceback:
File "/home/developer/WorkData/PLC/beremiz/beremiz/IDEFrame.py", line 1433, in OnPouSelectedChanged
window.RefreshView()
File "/home/developer/WorkData/PLC/beremiz/beremiz/etherlab/ConfigEditor.py", line 837, in RefreshView
self.RefreshProcessVariables()
File "/home/developer/WorkData/PLC/beremiz/beremiz/etherlab/ConfigEditor.py", line 886, in RefreshProcessVariables
slaves = self.Controler.GetSlaves(**self.CurrentNodesFilter)
File "/home/developer/WorkData/PLC/beremiz/beremiz/etherlab/EthercatMaster.py", line 341, in GetSlaves
for slave in self.Config.getConfig().getSlave():
<type 'exceptions.AttributeError'>:_'lxml.etree._Element'_object_has_no_attribute_'getSlave'

Steps to reproduce problem:

- Add new EtherCAT master
- Add new EthercatNode to the master
- double click on


Revert commit "Dirty fix for error '_object_has_no_attribute_'getSlave' in EtherCAT extension"
[a3ac46366b86a0b237dac93be6b2281ac70b98a8].

The problem was that XML elements (proxy object) in some cases were created using custom XML
classes constructors and lxml.etree.Element() call and live python
patching. This causes that lxml backend doesn't know that custom python class
should be used for these XML elements.
Proxy object can be move/deleted and recreated by lxml
backend at any point in time or this can be done in python by copy/deepcopy operations.
If this happens, then newly created
proxy elements are using default class lxml.etree._Element. And all
custom functionality is lost.

All created XML elements should be always created through corresponding
parser and class lookup callback done by lxml backend.
It's described in more details in lxml documentation:
https://lxml.de/element_classes.html
1936
b85b13b1c2ec YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset 
     1
 
include yslt.yml2
b85b13b1c2ec YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset 
     2
 












b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




     3


in xsl {













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




     4


    decl istylesheet (













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




     5


        *output="xml",













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




     6


        version="1.0",













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




     7


        xmlns:xsl="http://www.w3.org/1999/XSL/Transform",













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




     8


        xmlns:exsl='http://exslt.org/common',













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




     9


        extension-element-prefixes='exsl'













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    10


    ) alias stylesheet {













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    11


        output *output;













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    12


        content;













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    13


    };













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    14














b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    15


    decl template(match) {













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    16


        content;













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    17


    };













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    18














b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    19


    decl function(name) alias template {













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    20


        content;













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    21


    };













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    22


   













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    23


    decl call(name) alias call-template {













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    24


        content;













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    25


    };













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    26














b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    27


    decl apply(select) alias apply-templates {













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    28


        content;













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    29


    };













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    30


}













b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    31














b85b13b1c2ec
YSLT auto indent trick is useless here, added yslt_noindent.yml2, regenerated XSLT files



Edouard Tisserant <edouard.tisserant@gmail.com>


parents: 

diff
changeset




    32














beremiz