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import colander |
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from pyramid.view import view_config |
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from pyramid.view import view_defaults |
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from skosprovider_sqlalchemy.models import Language |
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from sqlalchemy.exc import NoResultFound |
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from atramhasis.errors import LanguageNotFoundException |
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from atramhasis.errors import ValidationError |
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from atramhasis.validators import LanguageTag |
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from atramhasis.validators import languagetag_validator |
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@view_defaults(accept='application/json', renderer='skosrenderer_verbose') |
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class LanguagesCrud: |
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""" |
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This object groups CRUD REST views for languages. |
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""" |
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def __init__(self, context, request): |
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self.request = request |
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self.context = context |
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self.logged_in = request.authenticated_userid |
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self.languages_manager = self.request.data_managers['languages_manager'] |
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def _get_json_body(self): |
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json_body = self.request.json_body |
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if 'l_id' in self.request.matchdict and 'id' not in json_body: |
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json_body['id'] = self.request.matchdict['l_id'] |
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return json_body |
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def _validate_language(self, json_language, new): |
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language = LanguageTag( |
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validator=languagetag_validator |
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).bind( |
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request=self.request, |
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new=new |
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) |
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try: |
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return language.deserialize(json_language) |
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except colander.Invalid as e: |
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raise ValidationError( |
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'Language could not be validated', |
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e.asdict() |
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) |
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@view_config(route_name='atramhasis.list_languages', permission='edit') |
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def list_languages(self): |
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""" |
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Get all existing languages |
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:return: list of languages |
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""" |
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if 'sort' in self.request.params: |
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sort = self.request.params['sort'] |
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sort_desc = (sort[0:1] == '-') |
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sort = sort[1:] if sort[0:1] in ['-', '+'] else sort |
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sort = sort.strip() |
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languages = self.languages_manager.get_all_sorted(sort, sort_desc) |
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else: |
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languages = self.languages_manager.get_all() |
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return languages |
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@view_config(route_name='atramhasis.get_language', permission='edit') |
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def get_language(self): |
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""" |
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Get an existing language |
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:raises atramhasis.errors.LanguageNotFoundException: If the language can't be found |
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:return the corresponding language |
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""" |
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l_id = self.request.matchdict['l_id'] |
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try: |
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language = self.languages_manager.get(l_id) |
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except NoResultFound: |
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raise LanguageNotFoundException(l_id) |
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self.request.response.status = '200' |
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return language |
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@view_config(route_name='atramhasis.edit_language', permission='edit') |
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def edit_language(self): |
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""" |
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Edit an existing language or create when not found |
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:raises atramhasis.errors.ValidationError: If the provided json can't be validated |
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""" |
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l_id = self.request.matchdict['l_id'] |
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json_body = self._get_json_body() |
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json_body['id'] = l_id |
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try: |
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language = self.languages_manager.get(l_id) |
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validated_json_language = self._validate_language(json_body, False) |
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language.name = validated_json_language['name'] |
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except NoResultFound: |
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validated_json_language = self._validate_language(json_body, True) |
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language = Language(id=validated_json_language['id'], name=validated_json_language['name']) |
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language = self.languages_manager.save(language) |
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self.request.response.status = '200' |
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return {'id': language.id, 'name': language.name} |
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@view_config(route_name='atramhasis.delete_language', permission='edit') |
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def delete_language(self): |
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""" |
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Delete an existing concept |
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:raises atramhasis.errors.LanguageNotFoundException: If the language can't be found |
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""" |
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l_id = self.request.matchdict['l_id'] |
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try: |
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language = self.languages_manager.get(l_id) |
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except NoResultFound: |
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raise LanguageNotFoundException(l_id) |
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self.languages_manager.delete(language) |
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self.request.response.status = '200' |
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return {'id': language.id, 'name': language.name} |
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OnroerendErfgoed /
atramhasis
