oarepo-ui 2.3.1

API for javascript user interface

OARepo API for UI

API for UI in OAREPO

Instalation

    pip install oarepo-ui

Usage

This library provides a set of APIs for writing oarepo javascript UI client.

OPTIONS https://localhost:5000/api/<record list endpoint>/?ln=<lang>

Returns known facets of all mappings registered in RECORDS_REST_FACETS

Response:

{
    "facets": {
        "facet-key": {
            "label": "translated facet label",
        }
    },
    "filters": {
        "filter-key": {
            "label": "translated filter label",
            "type": "one of string, number, date, time, datetime"
        }
    }
}

Configuration

OAREPO_UI_TRANSLATOR

Unless configured otherwise, oarepo-ui uses flask-babelex to perform translation of labels/values. This setting can be changed by specifying config option OAREPO_UI_TRANSLATOR. The translator accepts key (and bunch of kwargs according to the context) and returns translated value.

Translation keys

The default keys being fed into babel are:

• oarepo.facets...label
• facet values are not translated
• oarepo.filters...label

This can be changed on index-level or facet-level.

Index-level key override

If label, value and translator are unfilled, the default will be used

from oarepo_ui import translate_facets, translate_filters

FACETS = {
    'category': {
        'terms': {
            'field': 'category',
        },
    }
}
FILTERS = ...

RECORDS_REST_FACETS = {
    'records-record-v1.0.0': {
        'aggs': translate_facets(FACETS, 
                                 label='my.own.{facet_key}', 
                                 value='my.own.{facet_key}.{value_key}', 
                                 translator=lambda key, **kwargs: ...),
        'filters': translate_filters(FILTERS, label='my.own.{filter_key}', 
                                     translator=lambda key, **kwargs: ...)
    },
}

If you do not want to translate the label, use oarepo_ui.no_translation in label or use keep_facets, keep_facet, keep_filters, keep_filter instead.

Facet-level key override

from oarepo_ui import translate_facet

RECORDS_REST_FACETS = {
    'records-record-v1.0.0': {
        'aggs': {
            'category': translate_facet(
                {
                    'terms': {
                        'field': 'category',
                    },
                }, 
                label='my.own.key', 
                value='my.own.{value_key}', 
                translator=lambda key, **kwargs: ...)
        }
   }
}

Filter-level key override

from invenio_records_rest.facets import terms_filter
from oarepo_ui import translate_filter

RECORDS_REST_FACETS = {
    'records-record-v1.0.0': {
        'filters': {
            'category': translate_filter(
                terms_filter('category'), 
                label='my.own.key', 
                translator=lambda key, **kwargs: ...)
        }
   }
}

Permissions

translate_facets, translate_facet can receive additional parameter permissions. Pass a permission factory function perm(index, facet, **kwargs) -> that returns an object with a .can() method. If it returns True, the facet will be returned in https://localhost:5000/api/oarepo/indices/<index-name>?ln=<lang> call.

Note that this does not prevent client to use any filters he/she wants - no permissions are enforced on filter level.

from oarepo_ui import translate_facets, translate_filters

FACETS = ...

def perms(index, facet, **kwargs):
    class Perm():
        def can(self):
            return True
    return Perm()

RECORDS_REST_FACETS = {
    'records-record-v1.0.0': {
        'aggs': translate_facets(FACETS, permissions=perms)
    },
}

Facets and filters library

Filters

exclude_filter: Takes one argument, which is facet function and invert search query using bool must_not query.

f = exclude_filter(terms_filter('test'))
res = f(['a', 'b']).to_dict()
res == {
  "bool": {
    "must_not": [
      {
        "terms": {
          "test": ["a", "b"]
        }
      }
    ]
  }
}

Changes

Version [Unreleased]

Added

• date histogram facet: correspond with date histogram aggragation in ES (https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-datehistogram-aggregation.html)
• group_by_terms_filter: Filter that map values to other values based on dictionary mapping

Version 1.0.0

• Initial public release.