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

[Armin Retterath]

hi,

i think i've done the first thing ;-) (build the extension and activated in
production.ini). now i need a description to show the new facet (of the
solr index) in the ckan frontend - i don't find the doc where this is
described :-( . do i need to build a further extension?

thanx in advance

armin

2016-11-17 17:32 GMT+01:00 Stéphane Lapointe <lapointes at ogsl.ca>:

> 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>:
>
>> 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
>>
>> 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-d
>> ata/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>
>> 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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