xmlclass/test.xsd
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Fri, 10 Aug 2018 17:45:33 +0300
changeset 2278 a3ac46366b86
parent 814 5743cbdff669
permissions -rw-r--r--
Dirty 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


this is looks like dirty hack to fix strange problem with initial[0]
changing its type after returning from _init_ method to lxml.etree._Element
As a result all methods generated by class factory are lost.

For example, in function initMethod initial[0].__class__ points to
xmlclass.xmlclass.Config. After map(self.append, initial)
self.Config.__class__ is 'xmlclass.xmlclass.Config' as well.
But after returning from initMethod (_init) in CreateElement
self.Config.__class__ has changed to lxml.etree._Element.


I've noticed similar behavior if copy/deepcopy is used for any child
of etree.ElementBase. See simple example below.
[-------------------------------------------------------------]
#!/usr/bin/python

from __future__ import print_function
from lxml import etree
import copy

class DefaultElementClass(etree.ElementBase):
def getLocalTag(self):
return etree.QName(self.tag).localname


def printInformation(x):
print(x, x.__class__, "getLocalTag" in dir(x))


a = DefaultElementClass()
printInformation(a)

#
printInformation(copy.copy(a))
printInformation(copy.deepcopy(a))
[-------------------------------------------------------------]
814
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
     1
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
     2
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
     3
  <xsd:annotation>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
     4
    <xsd:documentation xml:lang="en">
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
     5
      Purchase order schema for Example.com.
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
     6
      Copyright 2000 Example.com. All rights reserved.
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
     7
    </xsd:documentation>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
     8
  </xsd:annotation>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
     9
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    10
  <xsd:element name="purchaseOrder" type="PurchaseOrderType"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    11
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    12
  <xsd:element name="comment" type="xsd:string"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    13
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    14
  <xsd:complexType name="PurchaseOrderType">
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    15
    <xsd:sequence>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    16
      <xsd:element name="shipTo" type="USAddress"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    17
      <xsd:element name="billTo" type="USAddress"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    18
      <xsd:element ref="comment" minOccurs="0"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    19
      <xsd:element name="items"  type="Items"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    20
    </xsd:sequence>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    21
    <xsd:attribute name="orderDate" type="xsd:date"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    22
  </xsd:complexType>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    23
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    24
  <xsd:complexType name="USAddress">
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    25
    <xsd:sequence>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    26
      <xsd:element name="name"   type="xsd:string"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    27
      <xsd:element name="street" type="xsd:string"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    28
      <xsd:element name="city"   type="xsd:string"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    29
      <xsd:element name="state"  type="xsd:string"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    30
      <xsd:element name="zip"    type="xsd:decimal"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    31
    </xsd:sequence>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    32
    <xsd:attribute name="country" type="xsd:NMTOKEN"
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    33
                   fixed="US"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    34
  </xsd:complexType>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    35
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    36
  <xsd:complexType name="Items">
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    37
    <xsd:sequence>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    38
      <xsd:element name="item" minOccurs="0" maxOccurs="unbounded">
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    39
        <xsd:complexType>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    40
          <xsd:sequence>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    41
            <xsd:element name="productName" type="xsd:string"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    42
            <xsd:element name="quantity">
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    43
              <xsd:simpleType>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    44
                <xsd:restriction base="xsd:positiveInteger">
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    45
                  <xsd:maxExclusive value="100"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    46
                </xsd:restriction>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    47
              </xsd:simpleType>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    48
            </xsd:element>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    49
            <xsd:element name="USPrice"  type="xsd:decimal"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    50
            <xsd:element ref="comment"   minOccurs="0"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    51
            <xsd:element name="shipDate" type="xsd:date" minOccurs="0"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    52
          </xsd:sequence>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    53
          <xsd:attribute name="partNum" type="SKU" use="required"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    54
        </xsd:complexType>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    55
      </xsd:element>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    56
    </xsd:sequence>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    57
  </xsd:complexType>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    58
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    59
  <!-- Stock Keeping Unit, a code for identifying products -->
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    60
  <xsd:simpleType name="SKU">
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    61
    <xsd:restriction base="xsd:string">
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    62
      <xsd:pattern value="\d{3}-[A-Z]{2}"/>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    63
    </xsd:restriction>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    64
  </xsd:simpleType>
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    65
5743cbdff669 Integration of PLCOpenEditor into Beremiz
Laurent Bessard
parents:
diff changeset
    66
</xsd:schema>