Action

Process once, with Context and Plugin as input.

Source Added
Link 1.2.0

Inherits Plugin




Public Functions

Output Method
process(context, plugin)




Properties

property type
icon str
on str




Usage

Attach any functionality to a plug-in and tailor it to a particular state; like an action only available via a failed validator, or a successful extraction, or just all-round functionality associated with a particular plug-in.

image

Each action is passed both the Context and it's parent plug-in at run-time and can be accessed via their argument signature, similar to plug-ins.

Actions in QML are arranged in a menu with optional customisable groups and separators. Actions with any kind of implementation error show up as well, including a helpful error message for simplified debugging.

Argument signature

These objects are available via the argument signature.

  • context: The global context
  • plugin: The parent plug-in

Full list of features

  • Per-plugin actions
  • Action API ~= Plug-in API, it is more or less a 1-1 match between their interfaces, including process() and label.
  • Standard logging and exception reporting, identical to plug-ins
  • Customisable icon per action, from Awesome Icon
  • Customisable availability
    • all: Always
    • processed: After plug-in has been processed
    • failed: After plug-in has been processed, and failed
    • succeeded: After plug-in has been processed, and succeeded




Example

class OpenInExplorer(pyblish.api.Action):
    label = "Open in Explorer"
    on = "failed"  # This action is only available on a failed plug-in
    icon = "hand-o-up"  # Icon from Awesome Icon

    def process(self, context, plugin):
        import subprocess
        subprocess.call("start .", shell=True)  # Launch explorer at the cwd


class Validate(pyblish.api.InstancePlugin):
    order = pyblish.api.ValidatorOrder
    actions = [
        # Order of items is preserved
        pyblish.api.Category("My Actions"),
        MyAction,
        pyblish.api.Separator,
    ]

    def process(self, instance):
        self.log.info("Standard log messages apply here.")
        raise Exception("Exceptions too.")

Extended Example

Every possible combination of an action.

class ContextAction(pyblish.api.Action):
    label = "Context action"

    def process(self, context):
        self.log.info("I have access to the context")
        self.log.info("Context.instances: %s" % str(list(context)))


class FailingAction(pyblish.api.Action):
    label = "Failing action"

    def process(self, context, plugin):
        self.log.info("About to fail..")
        raise Exception("I failed")


class LongRunningAction(pyblish.api.Action):
    label = "Long-running action"

    def process(self, context, plugin):
        self.log.info("Sleeping for 2 seconds..")
        time.sleep(2)
        self.log.info("Ah, that's better")


class IconAction(pyblish.api.Action):
    label = "Icon action"
    icon = "crop"

    def process(self, context, plugin):
        self.log.info("I have an icon")


class PluginAction(pyblish.api.Action):
    label = "Plugin action"

    def process(self, context, plugin):
        self.log.info("I have access to my parent plug-in")
        self.log.info("Which is %s" % plugin.id)


class LaunchExplorerAction(pyblish.api.Action):
    label = "Open in Explorer"
    icon = "folder-open"

    def process(self, context, plugin):
        import os
        import subprocess

        cwd = context.data["cwd"]
        self.log.info("Opening %s in Explorer" % cwd)
        result = subprocess.call("start .", cwd=cwd, shell=True)
        self.log.debug(result)


class ProcessedAction(pyblish.api.Action):
    label = "Success action"
    icon = "check"
    on = "processed"

    def process(self, context, plugin):
        self.log.info("I am only available on a successful plug-in")


class FailedAction(pyblish.api.Action):
    label = "Failure action"
    icon = "close"
    on = "failed"


class SucceededAction(pyblish.api.Action):
    label = "Success action"
    icon = "check"
    on = "succeeded"

    def process(self, context, plugin):
        self.log.info("I am only available on a successful plug-in")


class BadEventAction(pyblish.api.Action):
    label = "Bad event action"
    on = "not exist"


class InactiveAction(pyblish.api.Action):
    active = False


class PluginWithActions(pyblish.api.InstancePlugin):
    order = pyblish.api.ValidatorOrder
    optional = True
    actions = [
        pyblish.api.Category("General"),
        ContextAction,
        FailingAction,
        LongRunningAction,
        IconAction,
        PluginAction,
        pyblish.api.Category("OS"),
        LaunchExplorerAction,
        pyblish.api.Separator,
        FailedAction,
        SucceededAction,
        pyblish.api.Category("Debug"),
        BadEventAction,
        InactiveAction,
    ]

    def process(self, instance):
        self.log.info("Ran PluginWithActions")

Maya Example

import time
import pyblish.api
import pyblish_qml


class Collect(pyblish.api.Collector):
    def process(self, context):
        i = context.create_instance("MyInstance")
        i.data["family"] = "default"
        i.append("pCube1")


class SelectInvalidNodes(pyblish.api.Action):
    label = "Select broken nodes"
    on = "failed"
    icon = "hand-o-up"

    def process(self, context):
        self.log.info("Finding bad nodes..")
        nodes = []
        for result in context.data["results"]:
            if result["error"]:
                instance = result["instance"]
                nodes.extend(instance)

        self.log.info("Selecting bad nodes: %s" % ", ".join(nodes))
        cmds.select(deselect=True)
        cmds.select(nodes)


class Validate(pyblish.api.Validator):
    actions = [
        pyblish.api.Category("Scene"),
        SelectInvalidNodes
    ]

    def process(self, instance):
        raise Exception("I failed")


pyblish.api.register_plugin(Collect)
pyblish.api.register_plugin(Validate)

import pyblish_maya
pyblish_maya.show()
Fri Aug 18 2017 08:16:29 GMT+0000 (UTC)

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