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How to install collective.geo.geographer
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pypm install collective.geo.geographer
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Introduction
:mod:`collective.geo.geographer` provides geo annotation for Plone.
This package is based on Sean Gillies's idea (zgeo.geographer) and integrates its functionalities in collective.geo project.
Found a bug? Please, use the issue tracker.
Requirements
- Plone >= 4
Installation
This addon can be installed has any other addons, please follow official documentation.
How it work
Any object that implements :class:`IAttributeAnnotatable <zope.annotation.interfaces.IAttributeAnnotatable>` and :class:`IGeoreferenceable <collective.geo.geographer.interfaces.IGeoreferenceable>` can be adapted and geo-referenced.
The former marker is standard for Zope content objects, and the latter can be easily configured via ZCML.
Let's test with an example placemark, which provides both of the marker interfaces mentioned above.
>>> from zope.interface import implements >>> from zope.annotation.interfaces import IAttributeAnnotatable >>> from collective.geo.geographer.interfaces import IGeoreferenceable>>> class Placemark(object): ... implements(IGeoreferenceable, IAttributeAnnotatable)>>> placemark = Placemark()
Adapt it to :class:`IGeoreferenced <collective.geo.geographer.interfaces.IGeoreferenced>`
>>> from collective.geo.geographer.interfaces import IGeoreferenced >>> geo = IGeoreferenced(placemark)
Its properties should all be None
>>> geo.type is None True >>> geo.coordinates is None True >>> geo.crs is None True
Check whether geo referenceable object has coordinates or not
>>> geo.hasCoordinates() False
Now set the location geometry to type Point and coordinates 105.08 degrees West, 40.59 degrees North using :func:`setGeoInterface <IWritableGeoreference.setGeoInterface>`
>>> geo.setGeoInterface('Point', (-105.08, 40.59))
A georeferenced object has type and coordinates attributes which should give us back what we put in.
>>> geo.type
'Point'
>>> tuple(['%.2f' % x for x in geo.coordinates])
('-105.08', '40.59')
>>> geo.crs is None
True
now hasCoordinates method returns True
>>> geo.hasCoordinates() True
An event should have been sent
>>> from zope.component.eventtesting import getEvents >>> from collective.geo.geographer.event import IObjectGeoreferencedEvent >>> events = getEvents(IObjectGeoreferencedEvent) >>> events[-1].object is placemark True
To remove the coordinate from a georeferenced object, we can use :func:`removeGeoInterface <IWritableGeoreference.removeGeoInterface>` method:
>>> geo.removeGeoInterface() >>> geo.type is None True >>> geo.coordinates is None True >>> geo.crs is None True
Plone integration
Add geo-referenced content
>>> from plone.app.testing import setRoles >>> from plone.app.testing import TEST_USER_ID >>> portal = layer['portal'] >>> setRoles(portal, TEST_USER_ID, ['Manager'])>>> oid = portal.invokeFactory('Document', 'doc') >>> doc = portal[oid]
If content type doesn't implement :class:`IGeoreferenceable <collective.geo.geographer.interfaces.IGeoreferenceable>` interfaces we need to provide it
>>> from zope.interface import alsoProvides >>> alsoProvides(doc, IGeoreferenceable)
now we can set the coordinates
>>> from collective.geo.geographer.interfaces import IWriteGeoreferenced
>>> geo = IWriteGeoreferenced(doc)
>>> geo.setGeoInterface('Point', (-100, 40))
and reindex the document.
>>> doc.reindexObject(idxs=['zgeo_geometry'])
We can create a subscriber for :class:`IObjectGeoreferencedEvent <collective.geo.geographer.event.IObjectGeoreferencedEvent>` to do that automatically.
Check the catalog results
>>> from Products.CMFCore.utils import getToolByName
>>> catalog = getToolByName(portal, 'portal_catalog')
>>> brain = [b for b in catalog({'getId': 'doc'})][0]
>>> brain.zgeo_geometry['type']
'Point'
>>> brain.zgeo_geometry['coordinates']
(-100, 40)
A simple view - :class:`geoview <collective.geo.geographer.interfaces.IGeoView>` - notify us if a context is geo referenceable
>>> view = doc.restrictedTraverse('@@geoview')
>>> view.isGeoreferenceable()
True
and return its coordinates
>>> view.getCoordinates()
('Point', (-100, 40))
When we remove the coordinates, corresponding index will return None
>>> geo.removeGeoInterface()
>>> doc.reindexObject(idxs=['zgeo_geometry'])
>>> brain = [b for b in catalog({'getId': 'doc'})][0]
>>> brain.zgeo_geometry
Missing.Value
Contributors
- Sean Gillies
- Giorgio Borelli
- Christian Ledermann
- Mirco Angelini
Changelog
2.0b1 (2013-06-02)
- remove style key from zgeo_geometry metadata [gborelli]
- move IGeoCoder utility to c.geo.mapwidget [gborelli]
- remove IGeoCoder adapter [gborelli]
1.7 (2013-04-11)
- Fixed permission on GeoreferencingAnnotator. See #3 [gborelli]
- Moved showCoordinatesTab to c.geo.contentlocations [gborelli]
- Added hasCoordinates method to GeoreferencingAnnotator to check whether an object has been georeferenced or not [gborelli]
- Added a method in order to hidden Coordinates tab for dexterity content types [valentinaB]
- Changed Version of Geopy (moved from 0.94.2 to 0.95) to support Google api v3 in geocoder [cippino]
1.6 (2013-01-28)
- Fixed MANIFEST.in [gborelli]
1.5 (2013-01-28)
- Added Sphinx documentation [gborelli]
- Added travis-ci configurations [gborelli]
- Moved reindexDocSubscriber to collective.geo.contentlocations [gborelli]
- Refactored test and removed dependency from old Topic content type [gborelli]
1.4 (2012-02-11)
- changed tests using plone.app.testing [gborelli]
- Added IGeoCoder utility [gborelli]
- Marked as deprecated IGeoCoder adapter [gborelli]
- Added removeGeoInterface to remove coordinates from an object [mircoangelini]
0.1.3 (2011-09-05)
- plone 4.1 fixes [gborelli]
- include Products.CMFCore to make plone 4.1 happy [nan010]
- changed Browser import from Testing.testbrowser [gborelli]
- added z3c.autoinclude entry point [gborelli]
0.1.2 (2010-12-28)
- Moved IGeoView from c.geo.contentlocations
0.1.1 (2010-11-13)
- moved geocoderview to portal root
0.1 (2010-10-31)
- removed zgeo.geographer dependency
- zgeo.plone.geographer code refactoring
- moved from zgeo.plone.geographer
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