gistfile1.txt

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How to implement a geospatial search with collective.solr
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Solr
----

Configure a Solr Instance with collective.recipe.solrinstance.

Add a geolocation index and a dynamic '*_coordinate' index to the Solr
configuration (buildout.cfg)::

  [solr]
  recipe = collective.recipe.solrinstance
  ...
  index =
      name:geolocation type:location indexed:true stored:true
      ...

  additionalFieldConfig =
    <dynamicField name="*_coordinate"  type="tdouble" indexed="true"  stored="false"/>

Remove solr config directory (because c.r.solrinstance sometimes fail to
override the Solr configuration)::

  $ rm -rf parts/solr

Run buildout::

  $ bin/buildout

Start Plone/Solr::

  $ bin/instance fg
  $ bin/solr-instance fg

Check if Solr is up and running::

  localhost:8983/solr/


Plone
-----

Create Dexterity or Archetypes type with a Text field 'geolocation' (interfaces.py)::

  class IGeodataBehavior(model.Schema):

      geolocation = schema.Text(
          title=_("Geolocation"),
          required=False
      )

Create an indexer for the geolocation field (profiles/default/catalog.xml)::

  <?xml version="1.0"?>
  <object name="portal_catalog" meta_type="Plone Catalog Tool">

    <index name="geolocation" meta_type="FieldIndex">
      <indexed_attr value="geolocation" />
    </index>

  </object>

Restart Plone Instance, and reinstall your product or reindex the geolocation
Index manually. You might also have to run a Solr reindex.

Then you should be able to query
Query Solr::

  http://localhost:8090/solr/collection1/select?q=*%3A*&fq={!geofilt+sfield%3Dgeolocation}&wt=json&indent=true&spatial=true&pt=50%2C7&sfield=geolocation&d=7