def __init__(self):
super(Metadata, self).__init__(self)
self.vocabs = Vocabulary()
self.contacts = Contacts()
self.terms = []
def construct(self):
# default values
self.language = metadata.ResourceLanguage('English', 'eng')
self.vocabs = Vocabulary()
self.contacts = Contacts()
class Metadata(metadata.Metadata):
"""
A class that is used for the sqlalchemy mapping
This augments the base Metadata class, encapsulating differences
in the MEDIN schema behind the interface defined by the base
class.
"""
METADATAID = None
RESTYP_ID = _RESTYP_ID = _resource_type = None
SDSTYP_ID = _SDSTYP_ID = _service_type = None
ACCESS_CONSTRAINTS = _ACCESS_CONSTRAINTS = _access_constraint_terms = None
RESPARTY = _RESPARTY = _responsible_parties = None
FREQMOD_ID = _FREQMOD_ID = _update_frequency = None
terms = None
def __init__(self):
super(Metadata, self).__init__(self)
self.vocabs = Vocabulary()
self.contacts = Contacts()
self.terms = []
# Ensure the object is fully instantiated by sqlalchemy when
# creating instances using the ORM
@reconstructor
def construct(self):
# default values
self.language = metadata.ResourceLanguage('English', 'eng')
self.vocabs = Vocabulary()
self.contacts = Contacts()
@property
def resource_type(self):
if not self.RESTYP_ID:
return None
# check to see if we need to update the cached value
if self._RESTYP_ID != self.RESTYP_ID:
resource_type = self.vocabs.getResourceTypeFromCode(int(self.RESTYP_ID))
if resource_type:
self._resource_type = resource_type.term
self._RESTYP_ID = self.RESTYP_ID
return self._resource_type
@property
def service_type(self):
if not self.SDSTYP_ID:
return None
# check to see if we need to update the cached value
if self._SDSTYP_ID != self.SDSTYP_ID:
service_type = self.vocabs.getINSPIREDataTypeFromCode(int(self.SDSTYP_ID))
if service_type:
self._service_type = service_type.term
self._SDSTYP_ID = self.SDSTYP_ID
return self._service_type
def _getTerms(self, thesaurus_id):
"""
Return terms for a specific thesaurus
"""
for term in self.terms:
if term.thesaurus_id == thesaurus_id:
res = self.vocabs.getTermFromCode(term.thesaurus_id, term.code)
if not res:
continue
yield res
@property
def topic_categories(self):
return list(self._getTerms(3))
@property
def keywords(self):
categories = []
for thesaurus_id in (10, 11, 18):
categories.extend(self._getTerms(thesaurus_id))
return categories
@property
def data_formats(self):
return list(self._getTerms(16))
@property
def extents(self):
extents = []
for thesaurus_id in (2, 13, 14, 15):
extents.extend(self._getTerms(thesaurus_id))
return extents
@property
def additional_info(self):
return "\n\n".join([str(c) for c in self.ADDITIONAL_INFO])
@property
def access_constraint_terms(self):
if not self.ACCESS_CONSTRAINTS:
return []
# check to see if we need to update the cached value
if self._ACCESS_CONSTRAINTS != self.ACCESS_CONSTRAINTS:
access_constraint_terms = []
for constraint in self.ACCESS_CONSTRAINTS:
term = self.vocabs.getAccessRestrictionFromCode(int(constraint.ISOCODEID))
if term: access_constraint_terms.append(term)
self._access_constraint_terms = access_constraint_terms
self._ACCESS_CONSTRAINTS = self.ACCESS_CONSTRAINTS
return self._access_constraint_terms
@property
def responsible_parties(self):
if not self.RESPARTY:
return []
# check to see if we need to update the cached value
if self._RESPARTY != self.RESPARTY:
responsible_parties = []
for party in self.RESPARTY:
# get the role
term = self.vocabs.getContactRoleFromCode(int(party.ROLEID))
party.role = term
if not term:
continue
# get the contact information
contact = self.contacts.getOrganisation(int(party.CONTACTID))
if party.CONTACTID != party.ORGID:
org = self.contacts.getOrganisation(int(party.ORGID))
else:
org = contact
if org: party.organisation = org.name
if contact:
for attr in ('address', 'zipcode', 'city', 'state', 'country', 'website', 'phone', 'fax', 'email'):
setattr(party, attr, getattr(contact, attr))
responsible_parties.append(party)
self._responsible_parties = responsible_parties
self._RESPARTY = self.RESPARTY
return self._responsible_parties
@property
def update_frequency(self):
if not self.FREQMOD_ID:
return None
# check to see if we need to update the cached value
if self._FREQMOD_ID != self.FREQMOD_ID:
update_frequency = self.vocabs.getMaintenanceFrequencyFromCode(int(self.FREQMOD_ID))
if update_frequency:
self._update_frequency = update_frequency.term
self._FREQMOD_ID = self.FREQMOD_ID
return self._update_frequency
@property
def standard(self):
try:
return list(self._getTerms(19))[0].metadataStandardName
except IndexError:
return None
@property
def version(self):
try:
return list(self._getTerms(19))[0].metadataStandardVersion
except IndexError:
return None