def config_entity_subclassed(self):
"""
Resolves the config_entity to its subclass version. This garbage should all be done elegantly by Django,
maybe in the newest version. Otherwise refactor to generalize
:return:
"""
return ConfigEntity._subclassed(self.config_entity)
def config_entity_subclassed(self):
"""
Resolves the config_entity to its subclass version. This garbage should all be done elegantly by Django,
maybe in the newest version. Otherwise refactor to generalize
:return:
"""
return ConfigEntity._subclassed(self.config_entity)
def lineage(cls):
"""
A PresentationConfig can have any ConfigEntity for a parent
:param cls:
:return:
"""
return ConfigEntity.__subclasses__()
def lineage(cls):
"""
A PresentationConfig can have any ConfigEntity for a parent
:param cls:
:return:
"""
return ConfigEntity.__subclasses__()
def create_related_field(self, field_name, related_field_configuration):
"""
Creates a ForeignKey or ManyToMany field based on related_field_configuration
:param field_name:
:param related_field_configuration: A dict containing related_key or related_class_name
related_key: the instance of the sibling key of the config_entity whose dynamic_model_class is the relation type.
For DbEntity/Features this would be the db_entity_key and the dynamic_model_class would be its FeatureClass
For AnalysisModule this would be the analysis module key and its dynamic class
related_class_name: rather than related_key, any model class, such as BuiltForm, to relate to.
single: if True this is a ForeignKey (toOne) relationship. Otherwise a ManyToMany is created
:return: A two-item tuple. First item is the field name and the second is the field.
"""
config_entity = ConfigEntity._subclassed_by_id(self.configuration.scope)
# TODO temp coverage of a key name name change
related_field_configuration['related_key'] = related_field_configuration.get('related_key', related_field_configuration.get('related_db_entity_key'))
if related_field_configuration.get('related_key', False):
# field name matches name of peer self.db_entity_key--get it's feature class name
related_db_entity = get_single_value_or_none(config_entity.computed_db_entities(key=related_field_configuration['related_key']))
# Always call with no_ensure=True since the config_entity is the same. Otherwise we'd get infinite recursion
related_class_name_or_model = self.__class__(self.config_entity, related_db_entity, no_ensure=True).dynamic_model_class()
elif related_field_configuration.get('related_class_name', None):
# A model class such as BuiltForm
related_class_name_or_model = resolve_module_attr(related_field_configuration['related_class_name'])
else:
raise Exception("No related_key or related_class_name found on feature_class_configuration for self.configuration.key %s" % self.configuration.key)
logger.info('Creating %r related field for %s using %s', related_field_configuration.get('single', None) and 'single' or 'm2m',
field_name, related_field_configuration)
if related_field_configuration.get('single', None):
return [field_name,
models.ForeignKey(related_class_name_or_model, null=True)]
else:
return [field_name,
models.ManyToManyField(related_class_name_or_model,
# Pass a custom, readable table name for the through class for ManyToMany relations
db_table='"{schema}"."{table}_{field_name}"'.format(
schema=config_entity.schema(),
table=self.configuration.key,
field_name=field_name))]
def create_related_field(self, field_name, related_field_configuration):
"""
Creates a ForeignKey or ManyToMany field based on related_field_configuration
:param field_name:
:param related_field_configuration: A dict containing related_key or related_class_name
related_key: the instance of the sibling key of the config_entity whose dynamic_model_class is the relation type.
For DbEntity/Features this would be the db_entity_key and the dynamic_model_class would be its FeatureClass
For AnalysisModule this would be the analysis module key and its dynamic class
related_class_name: rather than related_key, any model class, such as BuiltForm, to relate to.
single: if True this is a ForeignKey (toOne) relationship. Otherwise a ManyToMany is created
:return: A two-item tuple. First item is the field name and the second is the field.
"""
config_entity = ConfigEntity._subclassed_by_id(self.configuration.scope)
# TODO temp coverage of a key name name change
related_field_configuration['related_key'] = related_field_configuration.get('related_key', related_field_configuration.get('related_db_entity_key'))
if related_field_configuration.get('related_key', False):
# field name matches name of peer self.db_entity_key--get it's feature class name
related_db_entity = get_single_value_or_none(config_entity.computed_db_entities(key=related_field_configuration['related_key']))
# Always call with no_ensure=True since the config_entity is the same. Otherwise we'd get infinite recursion
related_class_name_or_model = self.__class__(self.config_entity, related_db_entity, no_ensure=True).dynamic_model_class()
elif related_field_configuration.get('related_class_name', None):
# A model class such as BuiltForm
related_class_name_or_model = resolve_module_attr(related_field_configuration['related_class_name'])
else:
raise Exception("No related_key or related_class_name found on feature_class_configuration for self.configuration.key %s" % self.configuration.key)
logger.info('Creating %r related field for %s using %s', related_field_configuration.get('single', None) and 'single' or 'm2m',
field_name, related_field_configuration)
if related_field_configuration.get('single', None):
return [field_name,
models.ForeignKey(related_class_name_or_model, null=True)]
else:
return [field_name,
models.ManyToManyField(related_class_name_or_model,
# Pass a custom, readable table name for the through class for ManyToMany relations
db_table='"{schema}"."{table}_{field_name}"'.format(
schema=config_entity.schema(),
table=self.configuration.key,
field_name=field_name))]
def geography_scope(self):
return ConfigEntity._subclassed_by_id(self.configuration.geography_scope \
if self.configuration and self.configuration.key else \
self.config_entity.id)
def run_footprint_init(self, *args, **options):
if not settings.CELERY_ALWAYS_EAGER:
raise Exception('This command must run with settings.CELERY_ALWAYS_EQUAL = True. '
'Add --settings=footprint.settings_init to the command line.')
db_entity_keys = options.get('db_entity_keys').split(',') if options.get('db_entity_keys') else None
# Replace so we can use options as kwargs
options['db_entity_keys'] = db_entity_keys
config_entity_keys = options.get('config_entity_keys').split(',') if options.get('config_entity_keys') else None
# Replace so we can use options as kwargs
options['config_entity_keys'] = config_entity_keys
if not options.get('run_analysis'):
AnalysisModule._no_post_save_task_run_global = True
limit_to_classes = map(
lambda cls: resolve_model('main.%s' % cls), (options.get('class').split(',') if options.get('class') else [])
)
options['limit_to_classes'] = limit_to_classes
# Perforance testing
if options.get('memory'):
ConfigEntity.init_heapy()
ConfigEntity.start_heapy_diagnosis()
# Delete all ConfigEntity intances so they can be recreated.
# This will cascade delete related models, but it doesn't delete
# BuiltForms and other independent models
if options.get('recreate'):
for cls in filter_classes(limit_to_classes):
cls.objects.all().delete()
# Delete deleted config_entities
if options.get('recycle'):
for cls in filter_classes(limit_to_classes):
cls.objects.filter(deleted=True).delete()
if options.get('delete_clones') or options.get('delete_scenario_clones'):
# Delete clones and uploads
for cls in filter_classes(limit_to_classes):
all_config_entities = cls.objects.all()
for config_entity in all_config_entities:
if options.get('delete_clones'):
db_entities = map(
lambda db_entity_interest: db_entity_interest.db_entity,
DbEntityInterest.objects.filter(
config_entity=config_entity,
db_entity__origin_instance__isnull=False)
) +\
filter(
lambda db_entity: db_entity.feature_class_configuration and \
(isinstance(db_entity.feature_class_configuration, dict) or
db_entity.feature_class_configuration.generated),
config_entity.computed_db_entities())
layers_to_remove = Layer.objects.filter(layer_libraries__config_entity__in=[config_entity], db_entity_interest__db_entity__key__in=map(lambda db_entity: db_entity.key, db_entities))
for layer in layers_to_remove:
# Drop the layer_selection classes
layer_selection_class = get_or_create_layer_selection_class_for_layer(layer)
drop_tables_for_dynamic_classes(
layer_selection_class,
layer_selection_class.features.field.rel.through
)
layers_to_remove.delete()
for layer in Layer.objects.all():
try:
layer.db_entity_interest.db_entity
except:
# orphan
try:
# Drop the layer_selection classes
layer_selection_class = get_or_create_layer_selection_class_for_layer(layer)
drop_tables_for_dynamic_classes(
layer_selection_class,
layer_selection_class.features.field.rel.through
)
layer.delete()
except:
pass
# DbEntities
for db_entity in db_entities:
feature_class = None
try:
feature_class = FeatureClassCreator(config_entity, db_entity).dynamic_model_class()
except Exception, e:
logger.warn("No feature class for db_entity %s could be created. Exception: %s" % (db_entity.name, e.message))
DeleteImportProcessor().drop_data(config_entity, db_entity)
db_entity.delete()
if issubclass(cls, Scenario):
cloned_config_entities = cls.objects.filter(origin_instance__isnull=False)
# ConfigEntities and their schemas
if options.get('delete_clones') or options.get('delete_scenario_clones'):
for config_entity in cloned_config_entities:
PGNamespace.objects.drop_schema(config_entity.schema())
for db_entity in config_entity.owned_db_entities():
db_entity.delete()
cloned_config_entities.delete()
if options.get('delete_clones') and False:
for built_form_set in BuiltFormSet.objects.all():
built_form_set.built_forms.remove(*built_form_set.built_forms.filter(origin_instance__isnull=False))
# BuiltForms
BuiltForm.objects.filter(origin_instance__isnull=False).delete()
# Orphaned BuiltForm assets (only an issue when corrupt saves have happened)
BuildingAttributeSet.objects.annotate(
num_buildings=Count('building'), num_buildingtypes=Count('buildingtype'), num_placetypes=Count('building')).filter(
num_buildings=0, num_buildingtypes=0, num_placetypes=0).delete()
Medium.objects.annotate(num_built_form_sets=Count('builtform')).filter(num_built_form_sets=0, key__startswith='built_form').delete()
BuiltFormExample.objects.annotate(num_built_form_sets=Count('builtform')).filter(num_built_form_sets=0).delete()
def on_db_entity_interest_post_save(sender, **kwargs):
"""
Called after a DbEntityInterest saves, but not when a config_entity is running post_save publishers
In other words, this is only called after a direct DbEntityInterest save/update.
This does the same as post_save_config_entity, but starts with the 'post_save_config_entity_db_entities'
signal to do only DbEntity dependent presentation.
"""
db_entity_interest = kwargs['instance']
config_entity = ConfigEntity._subclassed(db_entity_interest.config_entity)
db_entity = db_entity_interest.db_entity
# TODO The default user should be the admin
user = db_entity.updater if db_entity.updater else get_user_model(
).objects.get(username=UserGroupKey.SUPERADMIN)
# post_save_db_entity presentation should always be disabled if we are saving a ConfigEntity
logger.info(
"Handler: post_save_db_entity_interest for config_entity {config_entity}, db_entity {db_entity}, "
"and user {username}.".format(config_entity=config_entity,
db_entity=db_entity_interest.db_entity,
username=user.username))
if kwargs.get('created', None):
db_entity = db_entity_interest.db_entity
# TODO
# While we test upload, just delete the previous DbEntitys with the same key name
# in the ConfigEntity.
db_entity_interest.config_entity.db_entities.filter(
key=db_entity.key).exclude(id=db_entity.id).delete()
# Make sure the db_entity's schema matches the config_entity's if not set
# TODO we assume that the schema should match the config_entity, rather than
# an ancestor or the config_entity (like the project or a scenario). There
# are many cases where the schema should not be that of the config_entity, so
# we might want to remove this default and force the saver to set it
if not db_entity.schema or not db_entity.table:
db_entity.schema = db_entity.schema or db_entity_interest.config_entity.schema(
)
# Always base the table name on the key
db_entity.table = db_entity.key
db_entity_interest.db_entity.save()
if db_entity_interest.config_entity.deleted:
# Do nothing for deleted config_entities
return
# Define the data_importer if not already set
if not (db_entity.feature_class_configuration
and db_entity.feature_class_configuration.data_importer):
feature_class_configuration = db_entity.feature_class_configuration = db_entity.feature_class_configuration or FeatureClassConfiguration(
)
# Choose the correct importer, if any, to set up the feature_class_configuration and features
if db_entity.origin_instance:
# Import from the origin_instance. This could be a full copy or from the current layer selection features
feature_class_configuration.data_importer = full_module_path(
OriginDbEntityProcessor)
elif '.json' in db_entity.url.lower():
# Import it using the geojson importer
feature_class_configuration.data_importer = full_module_path(
GeoJsonProcessor)
# Indicate that the feature class configuration was generated not fixture based
feature_class_configuration.generated = True
elif '.zip' in db_entity.url.lower():
feature_class_configuration.data_importer = full_module_path(
ZippedSqlFileProcessor)
# Indicate that the feature class configuration was generated not fixture based
feature_class_configuration.generated = True
elif not db_entity.no_feature_class_configuration:
feature_class_configuration.data_importer = full_module_path(
DefaultImportProcessor)
previous = DbEntityInterest._no_post_save_publishing
DbEntityInterest._no_post_save_publishing = True
db_entity.feature_class_configuration = feature_class_configuration
db_entity.save()
DbEntityInterest._no_post_save_publishing = previous
# Post save presentation section
# Quit if the publishers were turned off outside this method
if DbEntityInterest._no_post_save_publishing or db_entity_interest._no_post_save_publishing:
return
# Use this to initialize the FeatureBehavior and other stuff that might not be set
update_or_create_db_entity(config_entity, db_entity)
starting_signal_path = resolvable_module_attr_path(
__name__, 'post_save_db_entity_initial')
return post_save_publishing(
starting_signal_path,
config_entity,
user,
instance=db_entity_interest,
instance_class=DbEntity,
client_instance_path='db_entity',
instance_key=db_entity_interest.db_entity.key,
signal_proportion_lookup=signal_proportion_lookup,
dependent_signal_paths=dependent_signal_paths,
signal_prefix='post_save_db_entity',
# Update the setup_percent_complete instance attribute for new instances
# of classes with this attribute (currently only DbEntity)
update_setup_percent_complete=db_entity_interest.db_entity.
setup_percent_complete == 0,
**filter_keys(kwargs, ['created']))
def on_db_entity_interest_post_save(sender, **kwargs):
"""
Called after a DbEntityInterest saves, but not when a config_entity is running post_save publishers
In other words, this is only called after a direct DbEntityInterest save/update.
This does the same as post_save_config_entity, but starts with the 'post_save_config_entity_db_entities'
signal to do only DbEntity dependent presentation.
"""
db_entity_interest = kwargs['instance']
config_entity = ConfigEntity._subclassed(db_entity_interest.config_entity)
db_entity = db_entity_interest.db_entity
# TODO The default user should be the admin
user = db_entity.updater if db_entity.updater else get_user_model().objects.get(username=UserGroupKey.SUPERADMIN)
# post_save_db_entity presentation should always be disabled if we are saving a ConfigEntity
logger.info("Handler: post_save_db_entity_interest for config_entity {config_entity}, db_entity {db_entity}, "
"and user {username}.".format(
config_entity=config_entity,
db_entity=db_entity_interest.db_entity,
username=user.username
))
if kwargs.get('created', None):
db_entity = db_entity_interest.db_entity
# TODO
# While we test upload, just delete the previous DbEntitys with the same key name
# in the ConfigEntity.
db_entity_interest.config_entity.db_entities.filter(key=db_entity.key).exclude(id=db_entity.id).delete()
# Make sure the db_entity's schema matches the config_entity's if not set
# TODO we assume that the schema should match the config_entity, rather than
# an ancestor or the config_entity (like the project or a scenario). There
# are many cases where the schema should not be that of the config_entity, so
# we might want to remove this default and force the saver to set it
if not db_entity.schema or not db_entity.table:
db_entity.schema = db_entity.schema or db_entity_interest.config_entity.schema()
# Always base the table name on the key
db_entity.table = db_entity.key
db_entity_interest.db_entity.save()
if db_entity_interest.config_entity.deleted:
# Do nothing for deleted config_entities
return
# Define the data_importer if not already set
if not (db_entity.feature_class_configuration and db_entity.feature_class_configuration.data_importer):
feature_class_configuration = db_entity.feature_class_configuration = db_entity.feature_class_configuration or FeatureClassConfiguration()
# Choose the correct importer, if any, to set up the feature_class_configuration and features
if db_entity.origin_instance:
# Import from the origin_instance. This could be a full copy or from the current layer selection features
feature_class_configuration.data_importer = full_module_path(OriginDbEntityProcessor)
elif '.json' in db_entity.url.lower():
# Import it using the geojson importer
feature_class_configuration.data_importer = full_module_path(GeoJsonProcessor)
# Indicate that the feature class configuration was generated not fixture based
feature_class_configuration.generated = True
elif '.zip' in db_entity.url.lower():
feature_class_configuration.data_importer = full_module_path(ZippedSqlFileProcessor)
# Indicate that the feature class configuration was generated not fixture based
feature_class_configuration.generated = True
elif not db_entity.no_feature_class_configuration:
feature_class_configuration.data_importer = full_module_path(DefaultImportProcessor)
previous = DbEntityInterest._no_post_save_publishing
DbEntityInterest._no_post_save_publishing = True
db_entity.feature_class_configuration = feature_class_configuration
db_entity.save()
DbEntityInterest._no_post_save_publishing = previous
# Post save presentation section
# Quit if the publishers were turned off outside this method
if DbEntityInterest._no_post_save_publishing or db_entity_interest._no_post_save_publishing:
return
# Use this to initialize the FeatureBehavior and other stuff that might not be set
update_or_create_db_entity(config_entity, db_entity)
starting_signal_path = resolvable_module_attr_path(__name__, 'post_save_db_entity_initial')
return post_save_publishing(
starting_signal_path,
config_entity,
user,
instance=db_entity_interest,
instance_class=DbEntity,
client_instance_path='db_entity',
instance_key=db_entity_interest.db_entity.key,
signal_proportion_lookup=signal_proportion_lookup,
dependent_signal_paths=dependent_signal_paths,
signal_prefix='post_save_db_entity',
# Update the setup_percent_complete instance attribute for new instances
# of classes with this attribute (currently only DbEntity)
update_setup_percent_complete=db_entity_interest.db_entity.setup_percent_complete == 0,
**filter_keys(kwargs, ['created'])
)
