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# -*- coding: utf-8 -*- |
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from bika.lims import api |
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from bika.lims.api.snapshot import has_snapshots |
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from bika.lims.api.snapshot import supports_snapshots |
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from bika.lims.api.snapshot import take_snapshot |
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from bika.lims.interfaces import IDoNotSupportSnapshots |
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from DateTime import DateTime |
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from zope.interface import alsoProvides |
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def reindex_object(obj): |
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"""Reindex the object in the `auditlog_catalog` catalog |
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This is needed *after* the event handlers fired, because the indexing takes |
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place before the snapshot was created. |
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Also see here for more details: |
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https://docs.plone.org/develop/addons/components/events.html#modified-events |
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TL;DR: `Products.Archetypes.interfaces.IObjectEditedEvent` is fired after |
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`reindexObject()` is called. If you manipulate your content object in a |
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handler for this event, you need to manually reindex new values. |
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""" |
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auditlog_catalog = api.get_tool("auditlog_catalog") |
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auditlog_catalog.reindexObject(obj) |
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def unindex_object(obj): |
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"""Unindex the object in the `auditlog_catalog` catalog |
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""" |
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auditlog_catalog = api.get_tool("auditlog_catalog") |
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auditlog_catalog.reindexObject(obj) |
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def ObjectTransitionedEventHandler(obj, event): |
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"""Object has been transitioned to an new state |
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""" |
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# only snapshot supported objects |
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if not supports_snapshots(obj): |
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return |
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# default transition entry |
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entry = { |
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"modified": DateTime().ISO(), |
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"action": event.action, |
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} |
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# get the last history item |
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history = api.get_review_history(obj, rev=True) |
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if history: |
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entry = history[0] |
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# make transitions also a modification entry |
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timestamp = entry.pop("time", DateTime()) |
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entry["modified"] = timestamp.ISO() |
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entry["action"] = event.action |
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# take a new snapshot |
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take_snapshot(obj, **entry) |
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# reindex the object in the auditlog catalog |
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reindex_object(obj) |
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def ObjectModifiedEventHandler(obj, event): |
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"""Object has been modified |
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""" |
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# only snapshot supported objects |
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if not supports_snapshots(obj): |
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return |
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# take a new snapshot |
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take_snapshot(obj, action="edit") |
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# reindex the object in the auditlog catalog |
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reindex_object(obj) |
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def ObjectInitializedEventHandler(obj, event): |
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"""Object has been created |
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""" |
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# only snapshot supported objects |
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if not supports_snapshots(obj): |
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return |
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# object has already snapshots |
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if has_snapshots(obj): |
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return |
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# take a new snapshot |
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take_snapshot(obj, action="create") |
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def ObjectRemovedEventHandler(obj, event): |
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"""Object removed |
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""" |
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# only snapshot supported objects |
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if not supports_snapshots(obj): |
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return |
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# unindex the object |
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unindex_object(obj) |
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# freeze the object |
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alsoProvides(obj, IDoNotSupportSnapshots) |
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