plugin.py

# import from third parties
from dateutil.parser import parse
import json
import logging
from collections import OrderedDict

# imports from ckan
from ckan.lib.plugins import DefaultTranslation, DefaultDatasetForm
from ckan.logic.validators import tag_string_convert
import ckan.plugins as plugins
import ckan.plugins.toolkit as toolkit

# imports from this extension
import ckanext.odsh.helpers as helpers_odsh
import ckanext.odsh.helper_pkg_dict as helper_pkg_dict
from .helper_pkg_dict import HelperPgkDict
import ckanext.odsh.logic.action as action
import ckanext.odsh.validation as validation
import ckanext.odsh.search as search
import ckanext.odsh.tools as tools
from ckanext.odsh.views import default
# from ckanext.odsh.views import package
from ckanext.odsh.views import user
from ckanext.odsh.views import dashboard
from ckanext.odsh.views import harvest
from ckanext.odsh.views import feed
# from ckanext.dcat import blueprints as dcat_view

log = logging.getLogger(__name__)

_ = toolkit._


class OdshPlugin(plugins.SingletonPlugin, DefaultTranslation, DefaultDatasetForm):
    plugins.implements(plugins.IActions)
    plugins.implements(plugins.IConfigurer)
    plugins.implements(plugins.IDatasetForm)
    plugins.implements(plugins.IFacets)
    plugins.implements(plugins.IPackageController, inherit=True)
    plugins.implements(plugins.ITemplateHelpers)
    plugins.implements(plugins.ITranslation)
    plugins.implements(plugins.IValidators)
    plugins.implements(plugins.IResourceController, inherit=True)
    plugins.implements(plugins.IBlueprint)

    # IBlueprint
    def get_blueprint(self):
        log.debug("OdshPlugin::get_blueprint")

        # Default
        bp_default = default.blueprint
        rules = [
            ('/info_page', 'info_page', default.info_page),
            ('/home', 'start', default.start),
            ('/robots.txt', 'robots_txt', default.robots_txt),
            ('/not_found', 'not_found', default.not_found), ]
        for rule in rules:
            bp_default.add_url_rule(*rule)

        # DCAT
        # if toolkit.asbool(toolkit.config.get('ckanext.dcat.enable_rdf_endpoints', True)):
        #     helpers_odsh.odsh_remove_route(map, 'dcat_catalog')
        #     bp_default.add_url_rule('/catalog.<any("xml", "rdf", "n3", "ttl", "jsonld"):_format>', view_func=dcat_view.read_catalog, defaults={'_format': 'xml'}, methods=['GET'])

        # Package
        # bp_package = package.blueprint
        # rules = [
        #     ('/dataset/<id>/resource/<resource_id>', 'redirect_dataset_resource', package.redirect_dataset_resource), ]
        # for rule in rules:
        #     bp_package.add_url_rule(*rule)

        # User
        bp_user = user.blueprint
        bp_user.add_url_rule(u'/user', endpoint='user_index',
                             view_func=user.index, strict_slashes=False)
        # bp_user.add_url_rule(u'/user/register', view_func=user.register)

        # Dashboard
        bp_dashboard = dashboard.blueprint
        bp_dashboard.add_url_rule(
            u'/dashboard/datasets', view_func=dashboard.datasets)
        bp_dashboard.add_url_rule(
            u'/dashboard/organizations', view_func=dashboard.organizations)
        bp_dashboard.add_url_rule(
            u'/dashboard/groups', view_func=dashboard.groups)

        # Harvest
        bp_harvest = harvest.blueprint
        bp_harvest.add_url_rule(u'/harvest', view_func=harvest.search, strict_slashes=False)
        bp_harvest.add_url_rule(u'/harvest/new', view_func=harvest.new)
        bp_harvest.add_url_rule(u'/harvest/<id>', view_func=harvest.read)
        bp_harvest.add_url_rule(u'/harvest/about/<id>', view_func=harvest.about)

        # Feed
        bp_feed = feed.blueprint
        bp_feed.add_url_rule(u'/feeds/custom.atom', methods=[u'GET'], view_func=feed.custom)

        return [bp_default, bp_user, bp_dashboard, bp_harvest, bp_feed] #bp_package

    # IActions

    def get_actions(self):
        return {'package_create': action.odsh_package_create,
                'user_update': action.odsh_user_update,
                'user_create': action.odsh_user_create,
                'resource_create': action.odsh_resource_create, }

    # IConfigurer

    def update_config(self, config_):
        toolkit.add_template_directory(config_, 'templates')
        toolkit.add_public_directory(config_, 'public')
        toolkit.add_resource('assets', 'ckanext-odsh')

    def after_map(self, map):
        return map

    def package_types(self):
        # This plugin doesn't handle any special package types, it just
        # registers itself as the default (above).
        return []

    def is_fallback(self):
        # Return True to register this plugin as the default handler for
        # package types not handled by any other IDatasetForm plugin.
        return True

    def create_package_schema(self):
        schema = super(OdshPlugin, self).create_package_schema()
        self._update_schema(schema)
        self._update_create_or_update_package_schema(schema)
        return schema

    def update_package_schema(self):
        schema = super(OdshPlugin, self).update_package_schema()
        self._update_schema(schema)
        self._update_create_or_update_package_schema(schema)
        return schema

    def show_package_schema(self):
        schema = super(OdshPlugin, self).show_package_schema()
        self._update_show_package_schema(schema)
        return schema

    def _update_schema(self, schema):
        for field in ['title', 'license_id']:
            schema.update({field: [toolkit.get_converter('not_empty')]})

        for field in ['reference', 'is_replaced_by', 'version_notes']:
          schema.update({
              field: [
                  toolkit.get_validator('ignore_missing'),
                  toolkit.get_converter('convert_to_extras')
              ]
          })

        schema['resources'].update({
            'url': [toolkit.get_converter('not_empty')],
            'format': [toolkit.get_converter('odsh_validate_format')],
        })

        schema['extras'].update({
            'key': [
                toolkit.get_converter('known_spatial_uri'),
                toolkit.get_converter('validate_licenseAttributionByText'),
            ]
        })
        schema.update(
            {'__extras':  [toolkit.get_converter('odsh_validate_extras')]})

    def _update_create_or_update_package_schema(self, schema):
        schema.update({
            'language': [
                toolkit.get_validator('ignore_missing'),
                toolkit.get_converter('convert_to_extras')
            ],
            'thumbnail': [
                toolkit.get_validator('ignore_missing'),
                toolkit.get_converter('convert_to_extras')
            ],
            'relatedPackage': [
                toolkit.get_validator('validate_relatedPackage'),
                toolkit.get_converter('convert_to_extras')
            ],
            'accessibility': [
                toolkit.get_validator('ignore_missing'),
                toolkit.get_converter('convert_to_extras')
            ],
            'is_replaced_by': [
                toolkit.get_validator('ignore_missing'),
                toolkit.get_converter('convert_to_extras')
            ],
            'version_notes': [
                toolkit.get_validator('ignore_missing'),
                toolkit.get_converter('convert_to_extras')
            ],
        })
        return schema

    def _update_show_package_schema(self, schema):
        schema.update({
            'language': [
                toolkit.get_converter('convert_from_extras'),
                toolkit.get_validator('ignore_missing')
            ],
            'thumbnail': [
                toolkit.get_converter('convert_from_extras'),
                toolkit.get_validator('ignore_missing')
            ],
            'relatedPackage': [
                toolkit.get_converter('convert_from_extras'),
                toolkit.get_validator('ignore_missing')
            ],
            'accessibility': [
                toolkit.get_converter('convert_from_extras'),
                toolkit.get_validator('ignore_missing')
            ],
            'is_replaced_by': [
                toolkit.get_validator('ignore_missing'),
                toolkit.get_converter('convert_to_extras')
            ],
            'version_notes': [
                toolkit.get_validator('ignore_missing'),
                toolkit.get_converter('convert_to_extras')
            ],
        })
        return schema

    # IFacets

    def dataset_facets(self, facets_dict, package_type):
        return OrderedDict({'organization': _('Organizations'),
                            'groups': _('Category'),
                            'res_format': _('File format'),
                            'license_title': _('License'),
                            #                            'tags': _('Tags'),
                            'openness': _('Open-Data-Eigenschaften')
                            })

    def group_facets(self, facets_dict, group_type, package_type):
        return OrderedDict({'organization': _('Organizations'),
                            'res_format': _('File format'),
                            'license_title': _('License'),
                            'groups': _('Category')})

    def organization_facets(self, facets_dict, organization_type, package_type):
        return OrderedDict({'organization': _('Organizations'),
                            'res_format': _('File format'),
                            'license_title': _('License'),
                            'groups': _('Category')})

    # IPackageController

    def after_dataset_show(self, context, pkg_dict):
        '''
        corrects missing relationships in pkg dict
        adds the following key-value-pairs to pkg_dict:
        # key: 'is_new', value: True if the dataset has been created within the last month
        '''
        pkg_dict = helpers_odsh.correct_missing_relationship(
            pkg_dict,
            helpers_odsh.get_pkg_relationships_from_model(pkg_dict)
        )
        self._update_is_new_in_pkg_dict(pkg_dict)

        return pkg_dict

    def before_dataset_view(self, pkg_dict):
        '''
        adds the following key-value-pairs to pkg_dict:
        # key: 'is_new', value: True if the dataset has been created within the last month
        '''
        self._update_is_new_in_pkg_dict(pkg_dict)
        return pkg_dict

    def after_dataset_create(self, context, resource):
        if resource.get('package_id'):
            tools.add_attributes_resources(context, resource)

    def after_dataset_update(self, context, resource):
        if resource.get('package_id'):
            tools.add_attributes_resources(context, resource)

    @staticmethod
    def _update_is_new_in_pkg_dict(pkg_dict):
        is_new = HelperPgkDict(pkg_dict).is_package_new()
        pkg_dict.update({'is_new': is_new})

    def before_dataset_index(self, dict_pkg):
        # make special date fields solr conform
        fields = ["issued", "temporal_start", "temporal_end"]
        for field in fields:
            field = 'extras_' + field
            if field in dict_pkg and dict_pkg[field]:
                d = parse(dict_pkg[field])
                dict_pkg[field] = '{0.year:04d}-{0.month:02d}-{0.day:02d}T00:00:00Z'.format(
                    d)

        self.map_qa_score(dict_pkg)

        if 'qa' in dict_pkg:
          dict_pkg.pop('qa')

        return dict_pkg
    
    # Add the custom parameters to Solr's facet queries
    # use several daterange queries agains temporal_start and temporal_end field
    # TODO: use field of type date_range in solr index instead
    def before_dataset_search(self, search_params):
        return search.before_dataset_search(search_params)

    # ITemplateHelpers

    def get_helpers(self):
        # Template helper function names should begin with the name of the
        # extension they belong to, to avoid clashing with functions from
        # other extensions.
        return {
	        'odsh_main_groups': helpers_odsh.odsh_main_groups,
          'odsh_now': helpers_odsh.odsh_now,
          'odsh_group_id_selected': helpers_odsh.odsh_group_id_selected,
          'odsh_get_facet_items_dict': helpers_odsh.odsh_get_facet_items_dict,
          'odsh_openness_score_dataset_html': helpers_odsh.odsh_openness_score_dataset_html,
          'odsh_get_resource_details': helpers_odsh.odsh_get_resource_details,
          'odsh_get_resource_views': helpers_odsh.odsh_get_resource_views,
          'odsh_get_bounding_box': helpers_odsh.odsh_get_bounding_box,
          'odsh_get_spatial_text': helpers_odsh.odsh_get_spatial_text,
          'odsh_render_datetime': helpers_odsh.odsh_render_datetime,
          'odsh_resource_formats': helpers_odsh.odsh_resource_formats,
          'odsh_encodeurl': helpers_odsh.odsh_encodeurl,
          'odsh_extract_error': helpers_odsh.odsh_extract_error,
          'odsh_extract_error_new': helpers_odsh.odsh_extract_error_new,
          'odsh_extract_value_from_extras': helpers_odsh.odsh_extract_value_from_extras,
          'odsh_create_checksum': helpers_odsh.odsh_create_checksum,
          'presorted_license_options': helpers_odsh.presorted_license_options,
          'odsh_has_more_facets': helpers_odsh.odsh_has_more_facets,
          'odsh_public_url': helpers_odsh.odsh_public_url,
          'odsh_spatial_extends_available': helpers_odsh.spatial_extends_available,
          'odsh_public_resource_url': helpers_odsh.odsh_public_resource_url,
          'odsh_show_testbanner': helpers_odsh.odsh_show_testbanner,
          'get_daterange_prettified': helper_pkg_dict.get_daterange_prettified,
          'get_language_of_package': helpers_odsh.get_language_of_package,
          'get_language_icon': helpers_odsh.get_language_icon,
          'short_name_for_category': helpers_odsh.short_name_for_category,
          'get_spatial_for_selection': helpers_odsh.get_spatial_for_selection,
          'get_language_for_selection': helpers_odsh.get_language_for_selection,
          'get_resource_size': helpers_odsh.get_resource_size,
          'get_address_org':helpers_odsh.get_address_org,
          'get_body_mail':helpers_odsh.get_body_mail,
          'odsh_load_mdk_sample_dataset': helpers_odsh.odsh_load_mdk_sample_dataset,
          'odsh_load_raw_mdk_sample_dataset': helpers_odsh.odsh_load_raw_mdk_sample_dataset,
          'format_resource_format': helpers_odsh.format_resource_format,
         }

    
    # IValidators

    def get_validators(self):
        return validation.get_validators()

    scores = [['0OL'], ['0OL', '1RE'], ['0OL', '1RE', '2OF'], [
        '0OL', '1RE', '2OF', '3URI'], ['0OL', '1RE', '2OF', '3URI', '4LD']]

    def map_qa_score(self, dict_pkg):
        if 'validated_data_dict' in dict_pkg and 'openness_score' in dict_pkg['validated_data_dict']:
            d = json.loads(dict_pkg['validated_data_dict'])
            score = -1
            for r in d['resources']:
                if ('qa' in r) and (type(r['qa']) is dict) and ('openness_score' in r['qa']):
                    s = int(r['qa']['openness_score'])
                    if s > score:
                        score = s
            if score > 0:
                dict_pkg['openness'] = OdshPlugin.scores[score-1]