[ckan-dev] Solr/CKAN - Multi-valued theme - facet

Thu Nov 17 16:32:18 UTC 2016

Hi,

you can add it in your plugin.py. Be sure to implement IPackageController.

class YourPlugin(plugins.SingletonPlugin):
     plugins.implements(plugins.IPackageController, inherit=True)

Good luck

Le 2016-11-17 à 11:29, Armin Retterath a écrit :
> hello together,
>
> where i should insert the before_index function, if i don't have a 
> DataGCCAPackageController class like it is in the canadian 
> extension??? Which class should be modified instead?
>
> thanx in advance,
> armin
>
> 2016-11-05 19:51 GMT+01:00 Ian Ward <ian at excess.org 
> <mailto:ian at excess.org>>:
>
>     Hello Stéphane,
>
>     One feature missing from Scheming is the ability to adjust the
>     solr schema to match the extra metadata fields defined. This is
>     because the solr schema that CKAN uses is static. I CKAN moves to
>     solr's managed schema in the future so we can dynamically declare
>     multi-valued fields and have them "just work" with Scheming fields.
>
>     For now you'll need to modify the schema for each of the
>     multi-valued fields you're saving, e.g.
>     https://github.com/open-data/ckanext-canada/blob/master/conf/solr/schema.xml#L151
>     <https://github.com/open-data/ckanext-canada/blob/master/conf/solr/schema.xml#L151>
>
>     And you'll need to define a before_index method that passes the
>     multi-valued field as a list to solr, e.g.
>     https://github.com/open-data/ckanext-canada/blob/master/ckanext/canada/plugins.py#L370
>     <https://github.com/open-data/ckanext-canada/blob/master/ckanext/canada/plugins.py#L370>
>
>     Hope this helps.
>
>     On Thu, Nov 3, 2016 at 7:10 PM, Stéphane Lapointe
>     <lapointes at ogsl.ca <mailto:lapointes at ogsl.ca>> wrote:
>
>         Hi,
>
>         To translate our CKAN instance, we're using
>         ckanext-scheming/ckanext-fluent plugins.
>
>         We wanted to add a theming concept to our web site so we
>         declared a dataset.json schema which contains
>
>                 {
>                   "field_name": "theme",
>                   "preset": "multiple_checkbox",
>                   "label": {
>                     "fr": "Thème",
>                     "en": "Theme"
>                   },
>                   "choices": [
>                     {
>                       "value": "biodiversity",
>                       "label": {
>                         "fr": "Biodiversité",
>                         "en": "Biodiversity"
>                       }
>                     },
>                     {
>                       "value": "marine_conditions",
>                       "label": {
>                         "fr": "Conditions maritimes",
>                         "en": "Marine conditions"
>                       }
>                     }
>                   ]
>                 },
>
>         We can add and save dataset with multiple theme, so we're
>         assuming this part is set correctly. But, we're having problem
>         adding a facet theme.
>
>
>         After some debugging, we've found that the Solr's response is
>         quite strange. Here's what we've added in the Solr schema.xml:
>
>             <field name="theme" type="text" indexed="true"
>         stored="true" multiValued="true"/>
>
>
>         When we make a facet query to Solr, this is the response
>
>         (...)
>
>             "extras_theme":"[\"*biodiversity*\",
>         \"*marine_conditions*\"]",
>
>         (we observe that this is not normal multiValued like we see
>         with tags field. It probably should be: "biodiversity,
>         marine_conditions"... We don't know if it's plugins' fault.
>         Apparently, the side-effect is that something went wrong with
>         parsing)
>
>         (...)
>
>               "facet_counts":{
>                 "facet_queries":{},
>                 "facet_fields":{
>                   "theme":*[**
>         **            "biodivers",1,**
>         **            "condit",1,**
>         **            "marin",1,**
>         **            "marinecondit",1]*},
>                 "facet_ranges":{},
>                 "facet_intervals":{},
>                 "facet_heatmaps":{}}}
>
>
>         Our question: How can we define a parser/analyzer to obtain a
>         response like that:
>
>               "facet_counts":{
>                 "facet_queries":{},
>                 "facet_fields":{
>                   "theme":*[**
>         **            "biodiversity",1,**
>         **            "marine_condition",1]*},
>                 "facet_ranges":{},
>                 "facet_intervals":{},
>                 "facet_heatmaps":{}}}
>
>
>         Thank you very much.
>
>
>
>
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