Global Variable - Project Script Object has no Attribute

amarks · January 10, 2024, 5:58pm

I've got a project script that is having trouble accessing one of it's global variables.

ignitionName = '/ignition-desktop-av4v6h5:'

def historyPathConvert_MasterToEdge(self):
		
	#if this is an edge panel the path needs to be updated
	if self.parent.parent.edge:
		#get the current pens dataset
		penData = system.dataset.toPyDataSet(self.tagPens)
		
		#get headers for the dataset
		headers = list(penData.getColumnNames())
		
		#initialize empty list
		newPenData = []
		
		#get the index for the tag path column
		TAG_PATH_index = penData.getColumnIndex('TAG_PATH')
		
		#for each row in the pen dataset
		for row in penData:
			#create row as a list
			newRow = list(row)
			
			#update the tag path to the tag provider
			newRow[TAG_PATH_index] = row[TAG_PATH_index].replace(Trending.ignitionName,'/')
			
			#append the row to the list
			newPenData.append(newRow)
		
		#create dataset from list and assign to dataset
		data = system.dataset.toDataSet(headers, newPenData)
		if data is not None:
			self.tagPens = data

This script comes back with an error on line 27 when I try and do the string replacement with the pre-defined global string. It's acting like the global variable doesn't exist, even though it auto-completes

Traceback (most recent call last):
  File "<event:actionPerformed>", line 1, in <module>
  File "<custom-function updatePaths>", line 7, in updatePaths
  File "<module:Trending>", line 27, in historyPathConvert_MasterToEdge
AttributeError: 'com.inductiveautomation.ignition.common.script.Pro' object has no attribute 'ignitionName'

	at org.python.core.Py.AttributeError(Py.java:178)
	at org.python.core.PyObject.noAttributeError(PyObject.java:965)
	at org.python.core.PyObject.__getattr__(PyObject.java:959)
	at org.python.pycode._pyx292.historyPathConvert_MasterToEdge$1(<module:Trending>:35)
	at org.python.pycode._pyx292.call_function(<module:Trending>)
	at org.python.core.PyTableCode.call(PyTableCode.java:173)
	at org.python.core.PyBaseCode.call(PyBaseCode.java:134)
	at org.python.core.PyFunction.__call__(PyFunction.java:416)
	at org.python.pycode._pyx294.updatePaths$1(<custom-function updatePaths>:7)
	at org.python.pycode._pyx294.call_function(<custom-function updatePaths>)
	at org.python.core.PyTableCode.call(PyTableCode.java:173)
	at org.python.core.PyBaseCode.call(PyBaseCode.java:134)
	at org.python.core.PyFunction.__call__(PyFunction.java:416)
	at org.python.core.PyMethod.__call__(PyMethod.java:126)
	at org.python.pycode._pyx293.f$0(<event:actionPerformed>:1)
	at org.python.pycode._pyx293.call_function(<event:actionPerformed>)
	at org.python.core.PyTableCode.call(PyTableCode.java:173)
	at org.python.core.PyCode.call(PyCode.java:18)
	at org.python.core.Py.runCode(Py.java:1687)
	at com.inductiveautomation.ignition.common.script.ScriptManager.runCode(ScriptManager.java:803)
	at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.runActions(ActionAdapter.java:207)
	at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.invoke(ActionAdapter.java:300)
	at com.inductiveautomation.factorypmi.application.binding.action.RelayInvocationHandler.invoke(RelayInvocationHandler.java:57)
	at com.sun.proxy.$Proxy52.actionPerformed(Unknown Source)
	at java.desktop/javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
	at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
	at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
	at java.desktop/javax.swing.DefaultButtonModel.setPressed(Unknown Source)
	at java.desktop/javax.swing.plaf.basic.BasicButtonListener.focusLost(Unknown Source)
	at java.desktop/java.awt.AWTEventMulticaster.focusLost(Unknown Source)
	at java.desktop/java.awt.AWTEventMulticaster.focusLost(Unknown Source)
	at java.desktop/java.awt.Component.processFocusEvent(Unknown Source)
	at java.desktop/java.awt.Component.processEvent(Unknown Source)
	at java.desktop/java.awt.Container.processEvent(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source)
	at java.desktop/java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
	at java.desktop/java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.KeyboardFocusManager.dispatchAndCatchException(Unknown Source)
	at java.desktop/java.awt.KeyboardFocusManager.processCurrentLightweightRequests(Unknown Source)
	at java.desktop/java.awt.KeyboardFocusManager$4.run(Unknown Source)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.run(Unknown Source)

Ignition v8.1.27 (b2023042509)
Java: Azul Systems, Inc. 11.0.18

What am I missing?

PGriffith · January 10, 2024, 5:59pm

Why are you referring to it as Trending.ignitionName in your script if it's locally defined? Just remove the qualification, and refer to it as ignitionName?

amarks · January 10, 2024, 5:59pm

Same error. Just doing it for verbosity

PGriffith · January 10, 2024, 6:02pm

Indentation?
Posted here it's all indented with spaces, but is that actually how it's all formatted in your file? You can right click and 'Show Whitespace', or paste it into a good external code editor.

amarks · January 10, 2024, 6:15pm

PGriffith · January 10, 2024, 6:30pm

I don't really know what's going wrong.
It works on a test 8.1.35 system, using a mock object for self:

class TestObject(object):
	def __init__(self):
		self.tagPens = system.dataset.toDataSet(['TAG_PATH'], [["/ignition-desktop-av4v6h5:abc"], ["def"]])
		self.edge = True

t = TestObject()
Trending.historyPathConvert_MasterToEdge(t)

pds = system.dataset.toPyDataSet(t.tagPens)
for row in pds:
	for col in row:
		print col

Restart your designer, restart your gateway? Not very satisfying answers...

amarks · January 10, 2024, 7:06pm

Doesn't make sense to me either since I have other project scripts with global variables that are working

amarks · January 10, 2024, 7:18pm

Restarted designer and gateway. Not sure which one of those 2 did the trick, but it's working now.