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How to use add_field_selector method in autotest

Best Python code snippet using autotest_python
resources.py
Source:resources.py
...48class Label(EntryWithInvalid):49    model = models.Label50    @classmethod51    def add_query_selectors(cls, query_processor):52        query_processor.add_field_selector('name')53        query_processor.add_field_selector(54                'is_platform', field='platform',55                value_transform=query_processor.read_boolean)56    @classmethod57    def from_uri_args(cls, request, label_name, **kwargs):58        return cls(request, models.Label.objects.get(name=label_name))59    def _uri_args(self):60        return {'label_name': self.instance.name}61    def short_representation(self):62        rep = super(Label, self).short_representation()63        rep.update({'name': self.instance.name,64                    'is_platform': bool(self.instance.platform)})65        return rep66    def full_representation(self):67        rep = super(Label, self).full_representation()68        atomic_group_class = AtomicGroupClass.from_optional_instance(69                self._request, self.instance.atomic_group)70        rep.update({'atomic_group_class':71                        atomic_group_class.short_representation(),72                    'hosts': HostLabelingCollection(fixed_entry=self).link()})73        return rep74    @classmethod75    def create_instance(cls, input_dict, containing_collection):76        cls._check_for_required_fields(input_dict, ('name',))77        return models.Label.add_object(name=input_dict['name'])78    def update(self, input_dict):79        # TODO update atomic group80        if 'is_platform' in input_dict:81            self.instance.platform = input_dict['is_platform']82            self.instance.save()83class LabelCollection(resource_lib.Collection):84    queryset = models.Label.valid_objects.all()85    entry_class = Label86class AtomicLabelTagging(resource_lib.Relationship):87    related_classes = {'label': Label, 'atomic_group_class': AtomicGroupClass}88class AtomicLabelTaggingCollection(resource_lib.RelationshipCollection):89    entry_class = AtomicLabelTagging90class User(resource_lib.InstanceEntry):91    model = models.User92    _permitted_methods = ('GET,')93    @classmethod94    def from_uri_args(cls, request, username, **kwargs):95        if username == '@me':96            username = models.User.current_user().login97        return cls(request, models.User.objects.get(login=username))98    def _uri_args(self):99        return {'username': self.instance.login}100    def short_representation(self):101        rep = super(User, self).short_representation()102        rep['username'] = self.instance.login103        return rep104    def full_representation(self):105        rep = super(User, self).full_representation()106        accessible_hosts = HostCollection(self._request)107        accessible_hosts.set_query_parameters(accessible_by=self.instance.login)108        rep.update({'jobs': 'TODO',109                    'recurring_runs': 'TODO',110                    'acls':111                    UserAclMembershipCollection(fixed_entry=self).link(),112                    'accessible_hosts': accessible_hosts.link()})113        return rep114class UserCollection(resource_lib.Collection):115    _permitted_methods = ('GET',)116    queryset = models.User.objects.all()117    entry_class = User118class Acl(resource_lib.InstanceEntry):119    _permitted_methods = ('GET',)120    model = models.AclGroup121    @classmethod122    def from_uri_args(cls, request, acl_name, **kwargs):123        return cls(request, models.AclGroup.objects.get(name=acl_name))124    def _uri_args(self):125        return {'acl_name': self.instance.name}126    def short_representation(self):127        rep = super(Acl, self).short_representation()128        rep['name'] = self.instance.name129        return rep130    def full_representation(self):131        rep = super(Acl, self).full_representation()132        rep.update({'users':133                    UserAclMembershipCollection(fixed_entry=self).link(),134                    'hosts':135                    HostAclMembershipCollection(fixed_entry=self).link()})136        return rep137    @classmethod138    def create_instance(cls, input_dict, containing_collection):139        cls._check_for_required_fields(input_dict, ('name',))140        return models.AclGroup.add_object(name=input_dict['name'])141    def update(self, input_dict):142        pass143class AclCollection(resource_lib.Collection):144    queryset = models.AclGroup.objects.all()145    entry_class = Acl146class UserAclMembership(resource_lib.Relationship):147    related_classes = {'user': User, 'acl': Acl}148    # TODO: check permissions149    # TODO: check for and add/remove "Everyone"150class UserAclMembershipCollection(resource_lib.RelationshipCollection):151    entry_class = UserAclMembership152class Host(EntryWithInvalid):153    model = models.Host154    @classmethod155    def add_query_selectors(cls, query_processor):156        query_processor.add_field_selector('hostname')157        query_processor.add_field_selector(158                'locked', value_transform=query_processor.read_boolean)159        query_processor.add_field_selector(160                'locked_by', field='locked_by__login',161                doc='Username of user who locked this host, if locked')162        query_processor.add_field_selector('status')163        query_processor.add_field_selector(164                'protection_level', field='protection',165                doc='Verify/repair protection level',166                value_transform=cls._read_protection)167        query_processor.add_field_selector(168                'accessible_by', field='aclgroup__users__login',169                doc='Username of user with access to this host')170        query_processor.add_related_existence_selector(171                'has_label', models.Label, 'name')172    @classmethod173    def _read_protection(cls, protection_input):174        return host_protections.Protection.get_value(protection_input)175    @classmethod176    def from_uri_args(cls, request, hostname, **kwargs):177        return cls(request, models.Host.objects.get(hostname=hostname))178    def _uri_args(self):179        return {'hostname': self.instance.hostname}180    def short_representation(self):181        rep = super(Host, self).short_representation()182        # TODO calling platform() over and over is inefficient183        platform_rep = (Label.from_optional_instance(self._request,184                                                     self.instance.platform())185                        .short_representation())186        rep.update({'hostname': self.instance.hostname,187                    'locked': bool(self.instance.locked),188                    'status': self.instance.status,189                    'platform': platform_rep})190        return rep191    def full_representation(self):192        rep = super(Host, self).full_representation()193        protection = host_protections.Protection.get_string(194                self.instance.protection)195        locked_by = (User.from_optional_instance(self._request,196                                                 self.instance.locked_by)197                     .short_representation())198        labels = HostLabelingCollection(fixed_entry=self)199        acls = HostAclMembershipCollection(fixed_entry=self)200        queue_entries = QueueEntryCollection(self._request)201        queue_entries.set_query_parameters(host=self.instance.hostname)202        health_tasks = HealthTaskCollection(self._request)203        health_tasks.set_query_parameters(host=self.instance.hostname)204        rep.update({'locked_by': locked_by,205                    'locked_on': self._format_datetime(self.instance.lock_time),206                    'invalid': self.instance.invalid,207                    'protection_level': protection,208                    # TODO make these efficient209                    'labels': labels.full_representation(),210                    'acls': acls.full_representation(),211                    'queue_entries': queue_entries.link(),212                    'health_tasks': health_tasks.link()})213        return rep214    @classmethod215    def create_instance(cls, input_dict, containing_collection):216        cls._check_for_required_fields(input_dict, ('hostname',))217        # include locked here, rather than waiting for update(), to avoid race218        # conditions219        host = models.Host.add_object(hostname=input_dict['hostname'],220                                      locked=input_dict.get('locked', False))221        return host222    def update(self, input_dict):223        data = {'locked': input_dict.get('locked'),224                'protection': input_dict.get('protection_level')}225        data = input_dict.remove_unspecified_fields(data)226        if 'protection' in data:227            data['protection'] = self._read_protection(data['protection'])228        self.instance.update_object(**data)229        if 'platform' in input_dict:230            label = self.resolve_link(input_dict['platform']) .instance231            if not label.platform:232                raise exceptions.BadRequest('Label %s is not a platform' % label.name)233            for label in self.instance.labels.filter(platform=True):234                self.instance.labels.remove(label)235            self.instance.labels.add(label)236class HostCollection(resource_lib.Collection):237    queryset = models.Host.valid_objects.all()238    entry_class = Host239class HostLabeling(resource_lib.Relationship):240    related_classes = {'host': Host, 'label': Label}241class HostLabelingCollection(resource_lib.RelationshipCollection):242    entry_class = HostLabeling243class HostAclMembership(resource_lib.Relationship):244    related_classes = {'host': Host, 'acl': Acl}245    # TODO: acl.check_for_acl_violation_acl_group()246    # TODO: models.AclGroup.on_host_membership_change()247class HostAclMembershipCollection(resource_lib.RelationshipCollection):248    entry_class = HostAclMembership249class Test(resource_lib.InstanceEntry):250    model = models.Test251    @classmethod252    def add_query_selectors(cls, query_processor):253        query_processor.add_field_selector('name')254    @classmethod255    def from_uri_args(cls, request, test_name, **kwargs):256        return cls(request, models.Test.objects.get(name=test_name))257    def _uri_args(self):258        return {'test_name': self.instance.name}259    def short_representation(self):260        rep = super(Test, self).short_representation()261        rep['name'] = self.instance.name262        return rep263    def full_representation(self):264        rep = super(Test, self).full_representation()265        rep.update({'author': self.instance.author,266                    'class': self.instance.test_class,267                    'control_file_type':268                    control_data.CONTROL_TYPE.get_string(269                        self.instance.test_type),270                    'control_file_path': self.instance.path,271                    'sync_count': self.instance.sync_count,272                    'dependencies':273                    TestDependencyCollection(fixed_entry=self).link(),274                    })275        return rep276    @classmethod277    def create_instance(cls, input_dict, containing_collection):278        cls._check_for_required_fields(input_dict,279                                       ('name', 'control_file_type',280                                        'control_file_path'))281        test_type = control_data.CONTROL_TYPE.get_value(282            input['control_file_type'])283        return models.Test.add_object(name=input_dict['name'],284                                      test_type=test_type,285                                      path=input_dict['control_file_path'])286    def update(self, input_dict):287        data = {'test_type': input_dict.get('control_file_type'),288                'path': input_dict.get('control_file_path'),289                'class': input_dict.get('class'),290                }291        data = input_dict.remove_unspecified_fields(data)292        self.instance.update_object(**data)293class TestCollection(resource_lib.Collection):294    queryset = models.Test.objects.all()295    entry_class = Test296class TestDependency(resource_lib.Relationship):297    related_classes = {'test': Test, 'label': Label}298class TestDependencyCollection(resource_lib.RelationshipCollection):299    entry_class = TestDependency300# TODO profilers301class ExecutionInfo(resource_lib.Resource):302    _permitted_methods = ('GET','POST')303    _job_fields = models.Job.get_field_dict()304    _DEFAULTS = {305            'control_file': '',306            'is_server': True,307            'dependencies': [],308            'machines_per_execution': 1,309            'run_verify': bool(_job_fields['run_verify'].default),310            'run_reset': bool(_job_fields['run_reset'].default),311            'timeout_mins': _job_fields['timeout_mins'].default,312            'maximum_runtime_mins': _job_fields['max_runtime_mins'].default,313            'cleanup_before_job':314                model_attributes.RebootBefore.get_string(315                    models.DEFAULT_REBOOT_BEFORE),316            'cleanup_after_job':317                model_attributes.RebootAfter.get_string(318                    models.DEFAULT_REBOOT_AFTER),319            }320    def _query_parameters_accepted(self):321        return (('tests', 'Comma-separated list of test names to run'),322                ('kernels', 'TODO'),323                ('client_control_file',324                 'Client control file segment to run after all specified '325                 'tests'),326                ('profilers',327                 'Comma-separated list of profilers to activate during the '328                 'job'),329                ('use_container', 'TODO'),330                ('profile_only',331                 'If true, run only profiled iterations; otherwise, always run '332                 'at least one non-profiled iteration in addition to a '333                 'profiled iteration'),334                ('upload_kernel_config',335                 'If true, generate a server control file code that uploads '336                 'the kernel config file to the client and tells the client of '337                 'the new (local) path when compiling the kernel; the tests '338                 'must be server side tests'))339    @classmethod340    def execution_info_from_job(cls, job):341        return {'control_file': job.control_file,342                'is_server': 343                job.control_type == control_data.CONTROL_TYPE.SERVER,344                'dependencies': [label.name for label345                                 in job.dependency_labels.all()],346                'machines_per_execution': job.synch_count,347                'run_verify': bool(job.run_verify),348                'run_reset': bool(job.run_reset),349                'timeout_mins': job.timeout_mins,350                'maximum_runtime_mins': job.max_runtime_mins,351                'cleanup_before_job':352                    model_attributes.RebootBefore.get_string(job.reboot_before),353                'cleanup_after_job':354                    model_attributes.RebootAfter.get_string(job.reboot_after),355                }356    def _get_execution_info(self, input_dict):357        tests = input_dict.get('tests', '')358        client_control_file = input_dict.get('client_control_file', None)359        if not tests and not client_control_file:360            return self._DEFAULTS361        test_list = tests.split(',')362        if 'profilers' in input_dict:363            profilers_list = input_dict['profilers'].split(',')364        else:365            profilers_list = []366        kernels = input_dict.get('kernels', '') # TODO367        if kernels:368            kernels = [dict(version=kernel) for kernel in kernels.split(',')]369        cf_info, test_objects, profiler_objects, label = (370                rpc_utils.prepare_generate_control_file(371                        test_list, kernels, None, profilers_list))372        control_file_contents = control_file.generate_control(373                tests=test_objects, kernels=kernels,374                profilers=profiler_objects, is_server=cf_info['is_server'],375                client_control_file=client_control_file,376                profile_only=input_dict.get('profile_only', None),377                upload_kernel_config=input_dict.get(378                    'upload_kernel_config', None))379        return dict(self._DEFAULTS,380                    control_file=control_file_contents,381                    is_server=cf_info['is_server'],382                    dependencies=cf_info['dependencies'],383                    machines_per_execution=cf_info['synch_count'])384    def handle_request(self):385        result = self.link()386        result['execution_info'] = self._get_execution_info(387                self._request.REQUEST)388        return self._basic_response(result)389class QueueEntriesRequest(resource_lib.Resource):390    _permitted_methods = ('GET',)391    def _query_parameters_accepted(self):392        return (('hosts', 'Comma-separated list of hostnames'),393                ('one_time_hosts',394                 'Comma-separated list of hostnames not already in the '395                 'Autotest system'),396                ('meta_hosts',397                 'Comma-separated list of label names; for each one, an entry '398                 'will be created and assigned at runtime to an available host '399                 'with that label'),400                ('atomic_group_class', 'TODO'))401    def _read_list(self, list_string):402        if list_string:403            return list_string.split(',')404        return []405    def handle_request(self):406        request_dict = self._request.REQUEST407        hosts = self._read_list(request_dict.get('hosts'))408        one_time_hosts = self._read_list(request_dict.get('one_time_hosts'))409        meta_hosts = self._read_list(request_dict.get('meta_hosts'))410        atomic_group_class = request_dict.get('atomic_group_class')411        # TODO: bring in all the atomic groups magic from create_job()412        entries = []413        for hostname in one_time_hosts:414            models.Host.create_one_time_host(hostname)415        for hostname in hosts:416            entry = Host.from_uri_args(self._request, hostname)417            entries.append({'host': entry.link()})418        for label_name in meta_hosts:419            entry = Label.from_uri_args(self._request, label_name)420            entries.append({'meta_host': entry.link()})421        if atomic_group_class:422            entries.append({'atomic_group_class': atomic_group_class})423        result = self.link()424        result['queue_entries'] = entries425        return self._basic_response(result)426class Job(resource_lib.InstanceEntry):427    _permitted_methods = ('GET',)428    model = models.Job429    class _StatusConstraint(query_lib.Constraint):430        def apply_constraint(self, queryset, value, comparison_type,431                             is_inverse):432            if comparison_type != 'equals' or is_inverse:433                raise query_lib.ConstraintError('Can only use this selector '434                                                'with equals')435            non_queued_statuses = [436                    status for status, _437                    in models.HostQueueEntry.Status.choices()438                    if status != models.HostQueueEntry.Status.QUEUED]439            if value == 'queued':440                return queryset.exclude(441                        hostqueueentry__status__in=non_queued_statuses)442            elif value == 'active':443                return queryset.filter(444                        hostqueueentry__status__in=non_queued_statuses).filter(445                        hostqueueentry__complete=False).distinct()446            elif value == 'complete':447                return queryset.exclude(hostqueueentry__complete=False)448            else:449                raise query_lib.ConstraintError('Value must be one of queued, '450                                                'active or complete')451    @classmethod452    def add_query_selectors(cls, query_processor):453        query_processor.add_field_selector('id')454        query_processor.add_field_selector('name')455        query_processor.add_selector(456                query_lib.Selector('status',457                                   doc='One of queued, active or complete'),458                Job._StatusConstraint())459        query_processor.add_keyval_selector('has_keyval', models.JobKeyval,460                                            'key', 'value')461    @classmethod462    def from_uri_args(cls, request, job_id, **kwargs):463        return cls(request, models.Job.objects.get(id=job_id))464    def _uri_args(self):465        return {'job_id': self.instance.id}466    @classmethod467    def _do_prepare_for_full_representation(cls, instances):468        models.Job.objects.populate_relationships(instances, models.JobKeyval,469                                                  'keyvals')470    def short_representation(self):471        rep = super(Job, self).short_representation()472        try:473            string_priority = priorities.Priority.get_string(474                    self.instance.priority)475        except ValueError:476            string_priority = str(self.instance.priority)477        rep.update({'id': self.instance.id,478                    'owner': self.instance.owner,479                    'name': self.instance.name,480                    'priority': string_priority,481                    'created_on':482                        self._format_datetime(self.instance.created_on),483                    })484        return rep485    def full_representation(self):486        rep = super(Job, self).full_representation()487        queue_entries = QueueEntryCollection(self._request)488        queue_entries.set_query_parameters(job=self.instance.id)489        drone_set = self.instance.drone_set and self.instance.drone_set.name490        rep.update({'email_list': self.instance.email_list,491                    'parse_failed_repair':492                        bool(self.instance.parse_failed_repair),493                    'drone_set': drone_set,494                    'execution_info':495                        ExecutionInfo.execution_info_from_job(self.instance),496                    'queue_entries': queue_entries.link(),497                    'keyvals': dict((keyval.key, keyval.value)498                                    for keyval in self.instance.keyvals)499                    })500        return rep501    @classmethod502    def create_instance(cls, input_dict, containing_collection):503        owner = input_dict.get('owner')504        if not owner:505            owner = models.User.current_user().login506        cls._check_for_required_fields(input_dict, ('name', 'execution_info',507                                                    'queue_entries'))508        execution_info = input_dict['execution_info']509        cls._check_for_required_fields(execution_info, ('control_file',510                                                        'is_server'))511        if execution_info['is_server']:512            control_type = control_data.CONTROL_TYPE.SERVER513        else:514            control_type = control_data.CONTROL_TYPE.CLIENT515        options = dict(516                name=input_dict['name'],517                priority=input_dict.get('priority', None),518                control_file=execution_info['control_file'],519                control_type=control_type,520                is_template=input_dict.get('is_template', None),521                timeout_mins=execution_info.get('timeout_mins'),522                max_runtime_mins=execution_info.get('maximum_runtime_mins'),523                synch_count=execution_info.get('machines_per_execution'),524                run_verify=execution_info.get('run_verify'),525                run_reset=execution_info.get('run_reset'),526                email_list=input_dict.get('email_list', None),527                dependencies=execution_info.get('dependencies', ()),528                reboot_before=execution_info.get('cleanup_before_job'),529                reboot_after=execution_info.get('cleanup_after_job'),530                parse_failed_repair=input_dict.get('parse_failed_repair', None),531                drone_set=input_dict.get('drone_set', None),532                keyvals=input_dict.get('keyvals', None))533        host_objects, metahost_label_objects, atomic_group = [], [], None534        for queue_entry in input_dict['queue_entries']:535            if 'host' in queue_entry:536                host = queue_entry['host']537                if host: # can be None, indicated a hostless job538                    host_entry = containing_collection.resolve_link(host)539                    host_objects.append(host_entry.instance)540            elif 'meta_host' in queue_entry:541                label_entry = containing_collection.resolve_link(542                        queue_entry['meta_host'])543                metahost_label_objects.append(label_entry.instance)544            if 'atomic_group_class' in queue_entry:545                atomic_group_entry = containing_collection.resolve_link(546                        queue_entry['atomic_group_class'])547                if atomic_group:548                    assert atomic_group_entry.instance.id == atomic_group.id549                else:550                    atomic_group = atomic_group_entry.instance551        job_id = rpc_utils.create_new_job(552                owner=owner,553                options=options,554                host_objects=host_objects,555                metahost_objects=metahost_label_objects,556                atomic_group=atomic_group)557        return models.Job.objects.get(id=job_id)558    def update(self, input_dict):559        # Required for POST, doesn't actually support PUT560        pass561class JobCollection(resource_lib.Collection):562    queryset = models.Job.objects.order_by('-id')563    entry_class = Job564class QueueEntry(resource_lib.InstanceEntry):565    _permitted_methods = ('GET', 'PUT')566    model = models.HostQueueEntry567    @classmethod568    def add_query_selectors(cls, query_processor):569        query_processor.add_field_selector('host', field='host__hostname')570        query_processor.add_field_selector('job', field='job__id')571    @classmethod572    def from_uri_args(cls, request, queue_entry_id):573        instance = models.HostQueueEntry.objects.get(id=queue_entry_id)574        return cls(request, instance)575    def _uri_args(self):576        return {'queue_entry_id': self.instance.id}577    def short_representation(self):578        rep = super(QueueEntry, self).short_representation()579        if self.instance.host:580            host = (Host(self._request, self.instance.host)581                    .short_representation())582        else:583            host = None584        job = Job(self._request, self.instance.job)585        host = Host.from_optional_instance(self._request, self.instance.host)586        label = Label.from_optional_instance(self._request,587                                             self.instance.meta_host)588        atomic_group_class = AtomicGroupClass.from_optional_instance(589                self._request, self.instance.atomic_group)590        rep.update(591                {'job': job.short_representation(),592                 'host': host.short_representation(),593                 'label': label.short_representation(),594                 'atomic_group_class':595                     atomic_group_class.short_representation(),596                 'status': self.instance.status,597                 'execution_path': self.instance.execution_subdir,598                 'started_on': self._format_datetime(self.instance.started_on),599                 'aborted': bool(self.instance.aborted)})600        return rep601    def update(self, input_dict):602        if 'aborted' in input_dict:603            if input_dict['aborted'] != True:604                raise exceptions.BadRequest('"aborted" can only be set to true')605            query = models.HostQueueEntry.objects.filter(pk=self.instance.pk)606            models.AclGroup.check_abort_permissions(query)607            rpc_utils.check_abort_synchronous_jobs(query)608            self.instance.abort(thread_local.get_user())609class QueueEntryCollection(resource_lib.Collection):610    queryset = models.HostQueueEntry.objects.order_by('-id')611    entry_class = QueueEntry612class HealthTask(resource_lib.InstanceEntry):613    _permitted_methods = ('GET',)614    model = models.SpecialTask615    @classmethod616    def add_query_selectors(cls, query_processor):617        query_processor.add_field_selector('host', field='host__hostname')618    @classmethod619    def from_uri_args(cls, request, task_id):620        instance = models.SpecialTask.objects.get(id=task_id)621        return cls(request, instance)622    def _uri_args(self):623        return {'task_id': self.instance.id}624    def short_representation(self):625        rep = super(HealthTask, self).short_representation()626        host = Host(self._request, self.instance.host)627        queue_entry = QueueEntry.from_optional_instance(628                self._request, self.instance.queue_entry)629        rep.update(630                {'host': host.short_representation(),631                 'task_type': self.instance.task,...
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