def __init__(self, rdf_data_type=None, **kwargs):
if rdf_data_type is None:
_class_uri = kwargs.get("class_uri")
_prop_uri = kwargs.get("prop_uri")
if _prop_uri:
rdf_data_type = self._find_type(_class_uri, _prop_uri)
self.lookup = uri(rdf_data_type)
#! What happens if none of these replacements?
val = self.lookup.replace(str(XSD), "").\
replace("xsd:", "").\
replace("rdf:", "").\
replace(str(RDF), "")
if "http" in val:
val = "string"
self.prefix = "xsd:{}".format(val)
self.py_prefix = "xsd_%s" % val
self.iri = iri("{}{}".format(str(XSD), val))
self.name = val
if val.lower() == "literal" or val.lower() == "langstring":
self.prefix = "rdf:{}".format(val)
self.iri = iri(str(RDF) + val)
elif val.lower() == "object":
self.prefix = "objInject"
#! Why is uri a new property if an object?
self.uri = "objInject"
def __init__(self, rdf_data_type=None, **kwargs):
if rdf_data_type is None:
_class_uri = kwargs.get("class_uri")
_prop_uri = kwargs.get("prop_uri")
if _prop_uri:
rdf_data_type = self._find_type(_class_uri, _prop_uri)
self.lookup = uri(rdf_data_type)
#! What happens if none of these replacements?
val = self.lookup.replace(str(XSD), "").\
replace("xsd:", "").\
replace("rdf:", "").\
replace(str(RDF), "")
if "http" in val:
val = "string"
self.prefix = "xsd:{}".format(val)
self.py_prefix = "xsd_%s" % val
self.iri = iri("{}{}".format(str(XSD), val))
self.name = val
if val.lower() == "literal" or val.lower() == "langstring":
self.prefix = "rdf:{}".format(val)
self.iri = iri(str(RDF) + val)
elif val.lower() == "object":
self.prefix = "objInject"
#! Why is uri a new property if an object?
self.uri = "objInject"
def query_select_options(field):
''' returns a list of key value pairs for a select field '''
_prefix = rdfw().get_prefix()
_select_query = field.kds_fieldType.get('kds_selectQuery', None)
_select_list = {}
_options = []
if _select_query:
# send query to triplestore
_select_list = requests.post(
fw_config().get('TRIPLESTORE_URL'),
data={"query": _prefix + _select_query,
"format": "json"})
_raw_options = _select_list.json().get('results', {}).get('bindings', [])
_bound_var = field.kds_fieldType.get('kds_selectBoundValue', ''\
).replace("?", "")
_display_var = field.kds_fieldType.get('kds_selectDisplay', ''\
).replace("?", "")
# format query result into key value pairs
for row in _raw_options:
_options.append(
{
"id":iri(row.get(_bound_var, {}).get('value', '')),
"value":row.get(_display_var, {}).get('value', '')
})
return _options
def calculate_default_value(field):
'''calculates the default value based on the field default input'''
_calculation_string = field.get("kds_defaultVal", field.get("defaultVal"))
_return_val = None
if _calculation_string is None:
return None
if _calculation_string.startswith("item_class"):
_return_val = iri(uri(field.get("kds_classUri",field.get("classUri"))))
else:
_calc_params = _calculation_string.split('+')
_base = _calc_params[0].strip()
if len(_calc_params) > 1:
_add_value = float(_calc_params[1].strip())
else:
_add_value = 0
if _base == 'today':
_return_val = datetime.datetime.now().date() +\
datetime.timedelta(days=_add_value)
elif _base == 'now':
_return_val = datetime.datetime.now() +\
datetime.timedelta(days=_add_value)
elif _base == 'time':
_return_val = datetime.datetime.now().time() +\
datetime.timedelta(days=_add_value)
return _return_val
def query_select_options(field):
''' returns a list of key value pairs for a select field '''
_prefix = rdfw().get_prefix()
_select_query = field.kds_fieldType.get('kds_selectQuery', None)
_select_list = {}
_options = []
if _select_query:
# send query to triplestore
_select_list = requests.post(fw_config().get('TRIPLESTORE_URL'),
data={
"query": _prefix + _select_query,
"format": "json"
})
_raw_options = _select_list.json().get('results',
{}).get('bindings', [])
_bound_var = field.kds_fieldType.get('kds_selectBoundValue', ''\
).replace("?", "")
_display_var = field.kds_fieldType.get('kds_selectDisplay', ''\
).replace("?", "")
# format query result into key value pairs
for row in _raw_options:
_options.append({
"id": iri(row.get(_bound_var, {}).get('value', '')),
"value": row.get(_display_var, {}).get('value', '')
})
return _options
def calculate_default_value(field):
'''calculates the default value based on the field default input'''
_calculation_string = field.get("kds_defaultVal", field.get("defaultVal"))
_return_val = None
if _calculation_string is None:
return None
if _calculation_string.startswith("item_class"):
_return_val = iri(uri(field.get("kds_classUri",
field.get("classUri"))))
else:
_calc_params = _calculation_string.split('+')
_base = _calc_params[0].strip()
if len(_calc_params) > 1:
_add_value = float(_calc_params[1].strip())
else:
_add_value = 0
if _base == 'today':
_return_val = datetime.datetime.now().date() +\
datetime.timedelta(days=_add_value)
elif _base == 'now':
_return_val = datetime.datetime.now() +\
datetime.timedelta(days=_add_value)
elif _base == 'time':
_return_val = datetime.datetime.now().time() +\
datetime.timedelta(days=_add_value)
return _return_val
def set_obj_data(self, **kwargs):
''' sets the data for the current form paramters
**keyword arguments
subject_uri: the URI for the subject
class_uri: the rdf class of the subject
'''
_class_uri = kwargs.get("class_uri", self.data_class_uri)
_lookup_class_uri = _class_uri
subject_uri = kwargs.get("subject_uri", self.data_subject_uri)
if not is_not_null(subject_uri):
self.query_data = {}
return None
_subform_data = {}
_parent_field = None
# test to see if a sub_obj is part of the form.
'''if self.has_subobj:
for _field in self.rdf_field_list:
if _field.type == 'FieldList':
for _entry in _field.entries:
if _entry.type == 'FormField':
_sub_rdf_obj = _entry.form
_parent_field = _field
# if the sub_obj get its data
if _sub_rdf_obj:
_subform_data = _sub_rdf_obj.query_data'''
# send the form to the query generator and get the query data back
if kwargs.get('query_data') is None:
return None
'''self.query_data = convert_obj_to_rdf_namespace(\
convert_spo_to_dict(get_data(self, **kwargs)))'''
else:
self.query_data = kwargs.get('query_data')
_data_value = None
# cycle through the query data and add the data to the fields
for _item in make_list(self.query_data):
for _prop in self.rdf_field_list:
_prop_uri = _prop.kds_propUri
_class_uri = iri(uri(_prop.kds_classUri))
for _subject in _item:
if _class_uri in _item[_subject].get("rdf_type"):
_prop.query_data = _item[_subject].get(_prop_uri)
_prop.subject_uri = _subject
for _processor in _prop.kds_processors:
run_processor(_processor, self, _prop, "load")
if _prop.processed_data is not None:
#print(_prop_uri, " __ ", _prop.query_data, "--pro--", _prop.processed_data)
_prop.old_data = _prop.processed_data
_prop.processed_data = None
else:
_prop.old_data = _prop.query_data
#print(_prop_uri, " __ ", _prop.query_data, "--old--", _prop.old_data)
if _prop.data is None and _prop.old_data is not None:
_prop.data = _prop.old_data
def sparql(self, data_value):
"formats a value for a sparql triple"
if self.name == "object":
return iri(data_value)
elif self.name == "literal":
return '"{}"'.format(json.dumps(data_value))
elif self.name == "boolean":
return '"{}"^^{}'.format(str(data_value).lower(), self.prefix)
else:
formated_data = xsd_to_python(data_value, self.py_prefix,
"literal", "string")
return '{}^^{}'.format(json.dumps(data_value), self.prefix)
def save_file_to_repository(data, repo_item_address):
''' saves a file from a form to a repository'''
object_value = ""
if repo_item_address:
print("~~~~~~~~ write code here")
else:
repository_result = requests.post(
fw_config().get("REPOSITORY_URL"),
data=data.read(),
headers={"Content-type": "'image/png'"})
object_value = repository_result.text
return iri(object_value)
def save_file_to_repository(data, repo_item_address):
''' saves a file from a form to a repository'''
object_value = ""
if repo_item_address:
print("~~~~~~~~ write code here")
else:
repository_result = requests.post(
fw_config().get("REPOSITORY_URL"),
data=data.read(),
headers={"Content-type":"'image/png'"})
object_value = repository_result.text
return iri(object_value)
def calculate_value(value, obj, prop):
if DEBUG:
debug = True
else:
debug = False
if value.startswith("<<"):
_lookup_value = value.replace("<<","").replace(">>","")
if debug: print(value)
if "|" in _lookup_value:
value_array = _lookup_value.split("|")
_lookup_value = pyuri(value_array[0])
_class_uri = iri(pyuri(value_array[1]))
else:
_lookup_value = pyuri(_lookup_value)
_class_uri = iri(prop.kds_classUri)
_query_data = obj.query_data
for _subject, _data in _query_data.items():
if _class_uri in make_list(_data.get("rdf_type")):
#if _class_uri == "<obi_Assertion>": x=y
return cbool(_data.get(pyuri(_lookup_value)), False)
elif value.startswith("!--"):
return_val = value
if value == "!--api_url":
return_val = obj.api_url
if value == "!--base_url":
return_val = obj.base_url
if value == "!--base_api_url":
return_val = obj.base_api_url
if value == "!--subjectUri":
_query_data = obj.query_data
_class_uri = iri(prop.kds_classUri)
for _subject, _data in _query_data.items():
if _class_uri in make_list(_data.get("rdf_type")):
return_val = _subject
return return_val
else:
return cbool(value, False)
def sparql(self, data_value):
"formats a value for a sparql triple"
if self.name == "object":
return iri(data_value)
elif self.name == "literal":
return '"{}"'.format(json.dumps(data_value))
elif self.name == "boolean":
return '"{}"^^{}'.format(str(data_value).lower(),
self.prefix)
else:
formated_data = xsd_to_python(data_value,
self.py_prefix,
"literal",
"string")
return '{}^^{}'.format(json.dumps(data_value), self.prefix)
def _generate_save_query(self, save_data_obj, subject_uri=None):
if not DEBUG:
debug = False
else:
debug = False
if debug: print("START RdfClass._generate_save_query -------------\n")
_save_data = save_data_obj.get("data")
# find the subject_uri positional argument or look in the save_data_obj
# or return <> as a new node
if not subject_uri:
subject_uri = iri(uri(save_data_obj.get('subjectUri', "<>")))
_save_type = self.kds_storageType
if subject_uri == "<>" and _save_type.lower() == "blanknode":
_save_type = "blanknode"
else:
_save_type = "object"
new_status = False
if self.kds_saveLocation == "triplestore" and subject_uri == "<>":
subject_uri = iri(self.new_uri())
new_status = True
_bn_insert_clause = []
_insert_clause = ""
_delete_clause = ""
_where_clause = ""
_prop_set = set()
i = 1
if debug: print("save data in generateSaveQuery\n", \
pp.pprint(_save_data))
# test to see if there is data to save
if len(_save_data) > 0:
for prop in _save_data:
_prop_set.add(uri(prop[0]))
_prop_iri = iri(uri(prop[0]))
if not isinstance(prop[1], DeleteProperty):
_obj_val = uri(prop[1])
_insert_clause += "{}\n".format(\
make_triple(subject_uri, _prop_iri, _obj_val))
_bn_insert_clause.append("\t{} {}".format(
_prop_iri, _obj_val))
if subject_uri != '<>' and not new_status:
for prop in _prop_set:
_prop_iri = iri(uri(prop))
_delete_clause += "{}\n".format(\
make_triple(subject_uri, _prop_iri, "?"+str(i)))
_where_clause += "OPTIONAL {{ {} }} .\n".format(\
make_triple(subject_uri, _prop_iri, "?"+str(i)))
i += 1
else:
_obj_val = iri(uri(self.kds_classUri))
_insert_clause += make_triple(subject_uri, "a", _obj_val) + \
"\n"
_bn_insert_clause.append("\t a {}".format(_obj_val))
if _save_type == "blanknode":
_save_query = "[\n{}\n]".format(";\n".join(_bn_insert_clause))
else:
if subject_uri != '<>' and not new_status:
save_query_template = Template("""{{ prefix }}
DELETE \n{
{{ _delete_clause }} }
INSERT \n{
{{ _insert_clause }} }
WHERE \n{
{{ _where_clause }} }""")
_save_query = save_query_template.render(
prefix=rdfw().get_prefix(),
_delete_clause=_delete_clause,
_insert_clause=_insert_clause,
_where_clause=_where_clause)
else:
_save_query = "{}\n\n{}".format(
rdfw().get_prefix("turtle"), _insert_clause)
if debug: print(_save_query)
if debug:
print("END RdfClass._generate_save_query -------------\n")
return {
"query": _save_query,
"subjectUri": subject_uri,
"new_status": new_status
}
else:
if debug:
print("END RdfClass._generate_save_query -------------\n")
return {"subjectUri": subject_uri}
def set_obj_data(self, **kwargs):
''' sets the data for the current form paramters
**keyword arguments
subject_uri: the URI for the subject
class_uri: the rdf class of the subject
'''
if not DEBUG:
debug = False
else:
debug = True
if debug: print("START Form.set_obj_data rdfforms.py --------------\n")
_class_uri = kwargs.get("class_uri", self.data_class_uri)
_lookup_class_uri = _class_uri
subject_uri = kwargs.get("subject_uri", self.data_subject_uri)
if not is_not_null(subject_uri) and not kwargs.get('query_data'):
self.query_data = {}
return None
_subform_data = {}
_parent_field = None
# test to see if a sub_obj is part of the form.
'''if self.has_subobj:
for _field in self.rdf_field_list:
if _field.type == 'FieldList':
for _entry in _field.entries:
if _entry.type == 'FormField':
_sub_rdf_obj = _entry.form
_parent_field = _field
# if the sub_obj get its data
if _sub_rdf_obj:
_subform_data = _sub_rdf_obj.query_data'''
# send the form to the query generator and get the query data back
if kwargs.get('query_data') is None:
return None
'''self.query_data = convert_obj_to_rdf_namespace(\
convert_spo_to_dict(get_data(self, **kwargs)))'''
else:
self.query_data = kwargs.get('query_data')
_data_value = None
# cycle through the query data and add the data to the fields
for _item in make_list(self.query_data):
for _prop in self.rdf_field_list:
_prop_uri = _prop.kds_propUri
_class_uri = iri(uri(_prop.kds_classUri))
for _subject in _item:
if _class_uri in _item[_subject].get("rdf_type"):
_prop.query_data = _item[_subject].get(_prop_uri)
_prop.subject_uri = _subject
for _processor in _prop.kds_processors:
run_processor(_processor, self, _prop, "load")
if _prop.processed_data is not None:
#print(_prop_uri, " __ ", _prop.query_data, "--pro--", _prop.processed_data)
_prop.old_data = _prop.processed_data
_prop.processed_data = None
else:
_prop.old_data = _prop.query_data
#print(_prop_uri, " __ ", _prop.query_data, "--old--", _prop.old_data)
if _prop.data is None and _prop.old_data is not None:
_prop.data = _prop.old_data
#pp.pprint(_prop.__dict__)
if debug: print("END Form.set_obj_data rdfforms.py --------------\n")
def _run_save_query(self, save_query_obj, subject_uri=None):
if not DEBUG:
debug = False
else:
debug = True
_save_query = save_query_obj.get("query")
if debug: print("START RdfClass._run_save_query -------------------\n")
if debug: print("triplestore: ", self.triplestore_url)
if debug: print("repository: ", self.repository_url)
if not subject_uri:
subject_uri = save_query_obj.get("subjectUri")
if debug: print("_save_query:\n", _save_query)
if _save_query:
# a "[" at the start of the save query denotes a blanknode
# return the blanknode as the query result
if _save_query[:1] == "[":
object_value = _save_query
else:
# if there is no subject_uri create a new entry in the
# repository
if subject_uri == "<>" or save_query_obj.get("new_status"):
if debug: print("Enter New")
if self.kds_saveLocation == "repository":
repository_result = requests.post(
self.repository_url,
data=_save_query,
headers={"Content-type": "text/turtle"})
if debug:
print("repository_result: ", repository_result,
" ", repository_result.text)
object_value = repository_result.text
elif self.kds_saveLocation == "triplestore":
triplestore_result = requests.post(
url=self.triplestore_url,
headers={"Content-Type": "text/turtle"},
data=_save_query)
if debug:
print("triplestore_result: ", triplestore_result,
" ", triplestore_result.text)
object_value = subject_uri
elif self.kds_saveLocation == "elasticsearch":
print("**************** ES Connection NOT Built")
elif self.kds_saveLocation == "sql_database":
print("**************** SQL Connection NOT Built")
# if the subject uri exists send an update query to the
# specified datastore
else:
if debug: print("Enter Update")
if self.kds_saveLocation == "repository":
_headers = {
"Content-type": "application/sparql-update"
}
_url = clean_iri(subject_uri)
repository_result = \
requests.patch(_url, data=_save_query,
headers=_headers)
if debug:
print("repository_result: ", repository_result,
" ", repository_result.text)
object_value = iri(subject_uri)
elif self.kds_saveLocation == "triplestore":
_url = self.triplestore_url
triplestore_result = requests.post(
_url, data={"update": _save_query})
if debug:
print("triplestore_result: ", triplestore_result,
" ", triplestore_result.text)
object_value = iri(subject_uri)
elif self.kds_saveLocation == "elasticsearch":
print("**************** ES Connection NOT Built")
elif self.kds_saveLocation == "sql_database":
print("**************** SQL Connection NOT Built")
if debug: print("END RdfClass._run_save_query ----------------\n")
return {
"status": "success",
"lastSave": {
"objectValue": object_value
}
}
else:
if debug: print("Enter No Data to Save")
if debug: print("END RdfClass._run_save_query ---NO DATA-------\n")
return {
"status": "success",
"lastSave": {
"objectValue": iri(subject_uri),
"comment": "No data to Save"
}
}
def __format_data_for_save(self, processed_data, pre_save_data):
''' takes the processed data and formats the values for the sparql
query '''
if not DEBUG:
debug = False
else:
debug = False
if debug: print("START RdfClass.__format_data_for_save -----------\n")
_save_data = []
#if "obi_recipient" in pre_save_data.keys():
# x=y
if debug: print("format data***********\n")
if debug: pp.pprint(processed_data)
# cycle throught the properties in the processed data
for _prop_uri, prop in processed_data.items():
# if the property is maked for deletion add it to the save list
if isinstance(prop, NotInFormClass):
pass
elif isinstance(prop, DeleteProperty):
_save_data.append([_prop_uri, prop])
# if the property is a file object send it to the repository and
# add the new uri to the save data list
elif isinstance(prop, FileStorage):
_file_iri = save_file_to_repository(\
prop, pre_save_data[_prop_uri][0].get('old'))
_save_data.append([_prop_uri, _file_iri])
# otherwise determine the range of the property and format it in
# the correct sparl format
else:
# some properties have more than one option for the object
# value i.e. schema:image can either store a ImageObject or
# a Url to an image. We need to determine the range options
_range_list = make_list(self.kds_properties[_prop_uri].get(\
"rdfs_range", [{}]))
_storage_types = set()
_data_types = set()
# cycle through the range_list and get the sets of options
for _range_dict in _range_list:
_storage_types.add(_range_dict.get('storageType'))
if _range_dict.get('storageType') == "literal":
_data_types.add(_range_dict.get('rangeClass'))
_data_type = "xsd_string"
for _type in _data_types:
if "xsd" in _type:
_data_type = _type
# cycle through the items in the current prop
_value_list = make_list(prop)
for item in _value_list:
if 'object' in _storage_types or 'blanknode' in \
_storage_types:
uri_test = uri(item)
if debug: print(_prop_uri, " - ", uri_test)
if uri_test.startswith("http"):
_save_data.append([_prop_uri, iri(uri(item))])
elif 'literal' in _storage_types:
_save_data.append([_prop_uri, RdfDataType(\
_data_type).sparql(str(item))])
else:
_save_data.append([_prop_uri, iri(uri(item))])
else:
_item = str(item).encode('unicode_escape')
_save_data.append([_prop_uri, RdfDataType(\
_data_type).sparql(str(item))])
if debug: print("END RdfClass.__format_data_for_save -----------\n")
return _save_data
def _make_unique_value_qry(self, form, field):
debug = False
_sparql_args = []
# determine the property and class details of the field
_prop_uri = field.kds_propUri
_class_uri = field.kds_classUri
_range = field.rdfs_range
# make the base triples for the query
if _prop_uri:
_data_value = RdfDataType(None,
class_uri=_class_uri,
prop_uri=_prop_uri).sparql(field.data)
_sparql_args.append(make_triple("?uri", "a", iri(uri(_class_uri))))
_sparql_args.append(make_triple("?uri",
iri(uri(_prop_uri)),
_data_value))
# see if the form is based on a set of triplestore data. if it is
# remove that triple from consideration in the query
if hasattr(form, "data_subject_uri"):
_subject_uri = form.data_subject_uri
_lookup_class_uri = form.data_class_uri
# if the subject class is the same as the field class
if _lookup_class_uri == _class_uri and _subject_uri:
_sparql_args.append("FILTER(?uri!={}) .".format(\
iri(_subject_uri)))
if debug: x=y
# If not need to determine how the subject is related to the field
# property
elif _subject_uri:
# class links shows the relationship between the classes in a form
_class_links = form.dependancies
_linked_lookup_class_uri = None
# cycle through the class links to find the subject linkage
for _rdf_class in _class_links:
for _prop in _class_links[_rdf_class]:
if _lookup_class_uri == _prop.get("kds_classUri"):
_linked_lookup_class_uri = _rdf_class
_linked_lookup_prop = _prop.get("kds_propUri")
break
# if there is a direct link between the subject class and
# field class add the sparql arguments
if _linked_lookup_class_uri == _class_uri:
_sparql_args.append(\
"OPTIONAL{{?uri {} ?linkedUri}} .".format(\
iri(uri(_linked_lookup_prop))))
else:
# find the indirect linkage i.e.
# field in class A that links to class B with a lookup
# subject in class C
for _rdf_class in _class_links:
for _prop in _class_links[_rdf_class]:
if _class_uri == _prop.get("kds_classUri"):
_linked_field_class_uri = _rdf_class
_linked_field_prop = _prop.get("kds_propUri")
break
if _linked_lookup_class_uri == _linked_field_class_uri:
_sparql_args.append("OPTIONAL {")
_sparql_args.append("?pass {} ?uri .".format(\
iri(uri(_linked_field_prop))))
_sparql_args.append("?pass {} ?linkedUri .".format(\
iri(uri(_linked_lookup_prop))))
_sparql_args.append("} .")
_sparql_args.append(\
"BIND(IF(bound(?linkedUri),?linkedUri,'') AS ?link)")
_sparql_args.append("FILTER(?link!={}).".format(\
iri(_subject_uri)))
return '''{}\nSELECT (COUNT(?uri)>0 AS ?uniqueValueViolation)
{{\n{}\n}}\nGROUP BY ?uri'''.format(rdfw().get_prefix(),
"\n\t".join(_sparql_args))
def validate_primary_key(self, rdf_obj, old_data):
'''query to see if PrimaryKey is Valid'''
if not DEBUG:
debug = False
else:
debug = False
if debug: print("START RdfClass.validate_primary_key --------------\n")
if debug: print("old_data:\n", json.dumps(old_data, indent=4))
if old_data is None:
old_data = {}
_prop_name_list = []
if hasattr(self, "kds_primaryKey"):
pkey = self.kds_primaryKey
if isinstance(pkey, dict):
pkey = pkey.get("kds_keyCombo", [])
pkey = make_list(pkey)
else:
pkey = []
if debug: print(self.kds_classUri, " PrimaryKeys: ", pkey, "\n")
if len(pkey) < 1:
if debug: print("END RdfClass.validate_primary_key -NO pKey----\n")
return ["valid"]
else:
_calculated_props = self._get_calculated_properties()
_old_class_data = self._select_class_query_data(old_data)
_new_class_data = {}
_query_args = [make_triple("?uri", "a", \
iri(uri(self.kds_classUri)))]
_multi_key_query_args = [
make_triple("?uri", "a", iri(uri(self.kds_classUri)))
]
_key_changed = False
_prop_uri_list = []
_key_props = []
# get primary key data from the form data
for prop in rdf_obj:
if prop.kds_propUri in pkey:
_new_class_data[prop.kds_propUri] = prop.data
_prop_name_list.append(prop.kds_formLabelName)
_key_props.append(prop)
for key in pkey:
_object_val = None
#get the _data_value to test against
_data_value = _new_class_data.get(key,
_old_class_data.get(key))
if is_not_null(_data_value):
_range_obj = make_list(self.kds_properties[key].get(\
"rdfs_range", [{}]))[0]
_data_type = _range_obj.get('storageType')
_range = _range_obj.get('rangeClass')
if debug: print("_data_type: ", _data_type)
if _data_type == 'literal':
_object_val = RdfDataType(_range).sparql(_data_value)
else:
_object_val = iri(uri(_data_value))
else:
# if data is missing from the key fields exit method and
# return valid. *** The object value does not exist and
# will be generated when another class
# is saved
if debug: print(\
"END RdfClass.validate_primary_key - NO data-------\n")
return ["valid"]
# if the old_data is not equel to the newData re-evaluate
# the primaryKey
# if the old value is not equal to the new value need to test
# the key
# if the new value is to be calculated, i.e. a dependant class
# generating a value then we don't need to test the key.
# however if there is a supplied value and it is listed as a
# calculated property we need to test.
if (_old_class_data.get(key) != _new_class_data.get(key)) and \
((key not in _calculated_props) or \
_new_class_data.get(key) is not None):
_key_changed = True
if _object_val:
_query_args.append(make_triple("?uri", iri(uri(key)), \
_object_val))
_multi_key_query_args.append(make_triple("?uri", \
iri(uri(key)), _object_val))
else:
if _object_val:
_multi_key_query_args.append(make_triple("?uri", \
iri(uri(key)), _object_val))
else:
_key_changed = False
# if the primary key changed in the form we need to
# query to see if there is a violation with the new value
if _key_changed:
if len(pkey) > 1:
args = _multi_key_query_args
else:
args = _query_args
sparql = '''
{}\nSELECT DISTINCT (COUNT(?uri)>0 AS ?keyViolation)
{{\n{}\n}}\nGROUP BY ?uri'''.format(\
rdfw().get_prefix(),
"\n".join(args))
if debug: print("----------- PrimaryKey query:\n", sparql)
_key_test_results =\
requests.post(\
self.triplestore_url,
data={"query": sparql, "format": "json"})
if debug:
print("_key_test_results: ", _key_test_results.json())
_key_test = _key_test_results.json().get('results').get( \
'bindings', [])
if debug: print(_key_test)
if len(_key_test) > 0:
_key_test = _key_test[0].get('keyViolation', {}).get( \
'value', False)
else:
_key_test = False
if not _key_test:
if debug: print(\
"END RdfClass.validate_primary_key - Key Passed --\n")
return ["valid"]
else:
error_msg = "This {} aleady exists.".format(
" / ".join(_prop_name_list))
for prop in _key_props:
if hasattr(prop, "errors"):
if isinstance(prop.errors, list):
prop.errors.append(error_msg)
else:
prop.errors = [error_msg]
else:
setattr(prop, "errors", [error_msg])
return [{
"errorType": "primaryKeyViolation",
"formErrorMessage": error_msg,
"errorData": {
"class": self.kds_classUri,
"propUri": pkey
}
}]
if debug: print(\
"START RdfClass.validate_primary_key - Skipped Everything--\n")
return ["valid"]
def validate_primary_key(self, rdf_obj, old_data):
'''query to see if PrimaryKey is Valid'''
if not DEBUG:
debug = False
else:
debug = False
if debug: print("START RdfClass.validate_primary_key --------------\n")
if debug: print("old_data:\n",json.dumps(old_data,indent=4))
if old_data is None:
old_data = {}
_prop_name_list = []
if hasattr(self, "kds_primaryKey"):
pkey = self.kds_primaryKey
if isinstance(pkey, dict):
pkey = pkey.get("kds_keyCombo",[])
pkey = make_list(pkey)
else:
pkey = []
if debug: print(self.kds_classUri, " PrimaryKeys: ", pkey, "\n")
if len(pkey) < 1:
if debug: print("END RdfClass.validate_primary_key -NO pKey----\n")
return ["valid"]
else:
_calculated_props = self._get_calculated_properties()
_old_class_data = self._select_class_query_data(old_data)
_new_class_data = {}
_query_args = [make_triple("?uri", "a", \
iri(uri(self.kds_classUri)))]
_multi_key_query_args = [make_triple("?uri",
"a",
iri(uri(self.kds_classUri)))]
_key_changed = False
_prop_uri_list = []
_key_props = []
# get primary key data from the form data
for prop in rdf_obj:
if prop.kds_propUri in pkey:
_new_class_data[prop.kds_propUri] = prop.data
_prop_name_list.append(prop.kds_formLabelName)
_key_props.append(prop)
for key in pkey:
_object_val = None
#get the _data_value to test against
_data_value = _new_class_data.get(key, _old_class_data.get(key))
if is_not_null(_data_value):
_range_obj = make_list(self.kds_properties[key].get(\
"rdfs_range", [{}]))[0]
_data_type = _range_obj.get('storageType')
_range = _range_obj.get('rangeClass')
if debug: print("_data_type: ", _data_type)
if _data_type == 'literal':
_object_val = RdfDataType(_range).sparql(_data_value)
else:
_object_val = iri(uri(_data_value))
else:
# if data is missing from the key fields exit method and
# return valid. *** The object value does not exist and
# will be generated when another class
# is saved
if debug: print(\
"END RdfClass.validate_primary_key - NO data-------\n")
return ["valid"]
# if the old_data is not equel to the newData re-evaluate
# the primaryKey
# if the old value is not equal to the new value need to test
# the key
# if the new value is to be calculated, i.e. a dependant class
# generating a value then we don't need to test the key.
# however if there is a supplied value and it is listed as a
# calculated property we need to test.
if (_old_class_data.get(key) != _new_class_data.get(key)) and \
((key not in _calculated_props) or \
_new_class_data.get(key) is not None):
_key_changed = True
if _object_val:
_query_args.append(make_triple("?uri", iri(uri(key)), \
_object_val))
_multi_key_query_args.append(make_triple("?uri", \
iri(uri(key)), _object_val))
else:
if _object_val:
_multi_key_query_args.append(make_triple("?uri", \
iri(uri(key)), _object_val))
else:
_key_changed = False
# if the primary key changed in the form we need to
# query to see if there is a violation with the new value
if _key_changed:
if len(pkey) > 1:
args = _multi_key_query_args
else:
args = _query_args
sparql = '''
{}\nSELECT DISTINCT (COUNT(?uri)>0 AS ?keyViolation)
{{\n{}\n}}\nGROUP BY ?uri'''.format(\
rdfw().get_prefix(),
"\n".join(args))
if debug: print("----------- PrimaryKey query:\n", sparql)
_key_test_results =\
requests.post(\
self.triplestore_url,
data={"query": sparql, "format": "json"})
if debug: print("_key_test_results: ", _key_test_results.json())
_key_test = _key_test_results.json().get('results').get( \
'bindings', [])
if debug: print(_key_test)
if len(_key_test) > 0:
_key_test = _key_test[0].get('keyViolation', {}).get( \
'value', False)
else:
_key_test = False
if not _key_test:
if debug: print(\
"END RdfClass.validate_primary_key - Key Passed --\n")
return ["valid"]
else:
error_msg = "This {} aleady exists.".format(
" / ".join(_prop_name_list))
for prop in _key_props:
if hasattr(prop, "errors"):
if isinstance(prop.errors, list):
prop.errors.append(error_msg)
else:
prop.errors = [error_msg]
else:
setattr(prop, "errors", [error_msg])
return [{"errorType":"primaryKeyViolation",
"formErrorMessage": error_msg,
"errorData":{"class": self.kds_classUri,
"propUri": pkey}}]
if debug: print(\
"START RdfClass.validate_primary_key - Skipped Everything--\n")
return ["valid"]
def _generate_save_query(self, save_data_obj, subject_uri=None):
if not DEBUG:
debug = False
else:
debug = False
if debug: print("START RdfClass._generate_save_query -------------\n")
_save_data = save_data_obj.get("data")
# find the subject_uri positional argument or look in the save_data_obj
# or return <> as a new node
if not subject_uri:
subject_uri = iri(uri(save_data_obj.get('subjectUri', "<>")))
_save_type = self.kds_storageType
if subject_uri == "<>" and _save_type.lower() == "blanknode":
_save_type = "blanknode"
else:
_save_type = "object"
new_status = False
if self.kds_saveLocation == "triplestore" and subject_uri == "<>":
subject_uri = iri(self.new_uri())
new_status = True
_bn_insert_clause = []
_insert_clause = ""
_delete_clause = ""
_where_clause = ""
_prop_set = set()
i = 1
if debug: print("save data in generateSaveQuery\n", \
pp.pprint(_save_data))
# test to see if there is data to save
if len(_save_data) > 0:
for prop in _save_data:
_prop_set.add(uri(prop[0]))
_prop_iri = iri(uri(prop[0]))
if not isinstance(prop[1], DeleteProperty):
_obj_val = uri(prop[1])
_insert_clause += "{}\n".format(\
make_triple(subject_uri, _prop_iri, _obj_val))
_bn_insert_clause.append("\t{} {}".format(_prop_iri, _obj_val))
if subject_uri != '<>' and not new_status:
for prop in _prop_set:
_prop_iri = iri(uri(prop))
_delete_clause += "{}\n".format(\
make_triple(subject_uri, _prop_iri, "?"+str(i)))
_where_clause += "OPTIONAL {{ {} }} .\n".format(\
make_triple(subject_uri, _prop_iri, "?"+str(i)))
i += 1
else:
_obj_val = iri(uri(self.kds_classUri))
_insert_clause += make_triple(subject_uri, "a", _obj_val) + \
"\n"
_bn_insert_clause.append("\t a {}".format(_obj_val))
if _save_type == "blanknode":
_save_query = "[\n{}\n]".format(";\n".join(_bn_insert_clause))
else:
if subject_uri != '<>' and not new_status:
save_query_template = Template("""{{ prefix }}
DELETE \n{
{{ _delete_clause }} }
INSERT \n{
{{ _insert_clause }} }
WHERE \n{
{{ _where_clause }} }""")
_save_query = save_query_template.render(
prefix=rdfw().get_prefix(),
_delete_clause=_delete_clause,
_insert_clause=_insert_clause,
_where_clause=_where_clause)
else:
_save_query = "{}\n\n{}".format(
rdfw().get_prefix("turtle"),
_insert_clause)
if debug: print(_save_query)
if debug: print("END RdfClass._generate_save_query -------------\n")
return {"query":_save_query, "subjectUri":subject_uri,
"new_status":new_status}
else:
if debug: print("END RdfClass._generate_save_query -------------\n")
return {"subjectUri":subject_uri}
def create_data_sparql_query(obj, **kwargs):
''' generates the sparql query for getting an object's data '''
if not DEBUG:
debug = False
else:
debug = False
if debug: print("START create_data_sparql_query -----------------------\n")
if debug:
print("*** kwargs ***: \n%s \n*** obj ***:\n%s" %
(pp.pformat(kwargs), pp.pformat(obj.__dict__)))
from rdfframework import RdfDataType
subject_uri = kwargs.get("subject_uri", obj.data_subject_uri)
_class_uri = kwargs.get("class_uri", obj.data_class_uri)
_formated_val = None
_lookup_triple = ""
if obj.rdf_instructions.get("kds_subjectUriTransform"):
if obj.rdf_instructions.get("kds_subjectUriTransform") == \
"kdr_UidToRepositoryUri":
id_value = kwargs.get("id_value")
if kwargs.get("id_value"):
_subject_uri = uid_to_repo_uri(id_value)
subject_uri = _subject_uri
obj.data_subject_uri = _subject_uri
elif obj.rdf_instructions.get("kds_subjectUriTransform") == \
"kdr_UidToTriplestoreUri":
id_value = kwargs.get("id_value")
if kwargs.get("id_value"):
rdf_class = getattr(rdfw(), obj.data_class_uri)
subject_uri = rdf_class.uri_patterner(id_value)
obj.data_subject_uri = subject_uri
elif kwargs.get("id_value") or obj.rdf_instructions.get(
"kds_lookupPropertyUri"):
# find the details for formating the sparql query for the supplied
# id_value or lookup via a property Value
id_value = kwargs.get("id_value")
if not id_value:
id_value = subject_uri
_kds_propUri = obj.rdf_instructions.get("kds_lookupPropertyUri")
_rdf_class_uri = obj.rdf_instructions.get("kds_lookupPropertyClass")
if not _rdf_class_uri:
_rdf_class_uri = obj.rdf_instructions.get("kds_lookupClassUri")
_rdf_class = getattr(rdfw(), _rdf_class_uri)
_rdf_prop = _rdf_class.kds_properties[_kds_propUri]
_range = make_list(_rdf_prop.get("rdfs_range"))[0]
_formated_val = RdfDataType(_range.get("rangeClass")).sparql(id_value)
_lookup_triple = "\t{}\n\t{}\n\t".format(
make_triple("?subject", "a", iri(uri(_rdf_class.kds_classUri))),
make_triple("?subject", iri(uri(_kds_propUri)), _formated_val))
subject_uri = "?subject"
subject_lookup = kwargs.get("subject_lookup")
if subject_lookup:
# subject lookup will pull a subject and all of its related data
_kds_propUri = iri(uri(subject_lookup.kds_propUri))
_data_type = uri(make_list(subject_lookup.rdfs_range)[0])
_prop_value = RdfDataType(_data_type).sparql(\
str(subject_lookup.data))
_sparql = render_without_request("sparqlRelatedItemDataTemplate.rq",
prefix=rdfw().get_prefix(),
kds_propUri=_kds_propUri,
prop_value=_prop_value)
return _sparql
_lookup_class_uri = _class_uri
_sparql_args = None
_sparql_constructor = copy.deepcopy(obj.dependancies)
if debug:
print("+++++++++++++++++++++++ Dependancies:")
pp.pprint(_sparql_constructor)
_base_subject_finder = None
_linked_class = None
_linked_prop = False
_sparql_elements = []
_subform_data = {}
_data_list = obj.is_subobj
_parent_field = None
if is_not_null(subject_uri):
# find the primary linkage between the supplied subjectId and
# other form classes
for _rdf_class in _sparql_constructor:
for _prop in _sparql_constructor[_rdf_class]:
try:
if _class_uri == _prop.get("kds_classUri"):
_sparql_args = _prop
_linked_class = _rdf_class
_sparql_constructor[_rdf_class].remove(_prop)
if _rdf_class != _lookup_class_uri:
_linked_prop = True
except:
pass
# generate the triple pattern for linked class
if debug:
print("+++++++++++++++++++++++ SPARQL Constructor")
pp.pprint(_sparql_constructor)
if _sparql_args:
# create a binding for multi-item results
if _data_list:
_list_binding = "BIND(?classID AS ?itemID) ."
else:
_list_binding = ''
# provide connection triples for the id subject and associated
# rdf class
format_string = "{}BIND({} AS ?baseSub) .\n\t{}\n\t{}\n\t{}"
_base_subject_finder = format_string.format(
_lookup_triple, iri(subject_uri),
make_triple("?baseSub", "a", iri(uri(_lookup_class_uri))),
make_triple("?classID",
iri(uri(_sparql_args.get("kds_propUri"))),
"?baseSub"), _list_binding)
# if there is a linkage between subject_uri and another associated
# property in object
if _linked_prop:
# create a binding for multi-item results
if _data_list:
_list_binding = "BIND(?s AS ?itemID) ."
else:
_list_binding = ''
format_string = \
"{}BIND({} AS ?baseSub) .\n\t{}\n\t{}\n\t{}\n\t?s ?p ?o ."
_sparql_elements.append(format_string.format(\
_lookup_triple,
iri(subject_uri),
make_triple("?baseSub",
"a",
iri(uri(_lookup_class_uri))),
make_triple("?s",
iri(uri(_sparql_args.get("kds_propUri"))),
"?baseSub"),
_list_binding))
# iterrate though the classes used in the object and generate the
# spaqrl triples to pull the data for that class
for _rdf_class in _sparql_constructor:
if _rdf_class == _class_uri:
if _data_list:
_list_binding = "BIND(?s AS ?itemID) ."
else:
_list_binding = ''
if is_not_null(_lookup_triple) and is_not_null(_list_binding):
format_string = \
"{}BIND({} AS ?basesub).\n\t{}\n\t{}\n\t{}\n\t?s ?p ?o ."
_sparql_elements.append(
format_string.format(
_lookup_triple, iri(subject_uri),
make_triple('?baseSub', 'a',
iri(uri(_lookup_class_uri))),
make_triple(
'?classID',
iri(uri(_sparql_args.get("kds_propUri"))),
'?s'), "BIND(?classID AS ?itemID) ."))
else:
format_string = \
"\t{}BIND({} AS ?s) .\n\t{}\n\t{}\n\t?s ?p ?o ."
_sparql_elements.append(
format_string.format(
_lookup_triple, iri(subject_uri),
make_triple("?s", "a",
iri(uri(_lookup_class_uri))),
_list_binding))
for _prop in _sparql_constructor[_rdf_class]:
if _rdf_class == _class_uri:
if _data_list:
_list_binding = "BIND(?s AS ?itemID) ."
else:
_list_binding = ''
format_string = \
"\t{}BIND({} AS ?baseSub) .\n\t{}\n\t{}\n\t{}\n\t?s ?p ?o ."
_sparql_arg = format_string.format(\
_lookup_triple,
iri(subject_uri),
make_triple("?baseSub",
"a",
iri(uri(_lookup_class_uri))),
make_triple("?baseSub",
iri(uri(_prop.get("kds_propUri"))),
"?s"),
_list_binding)
_sparql_elements.append(_sparql_arg)
elif _rdf_class == _linked_class:
_sparql_elements.append("\t{}\n\t{}\n\t?s ?p ?o .".format(
_base_subject_finder,
make_triple("?classID",
iri(uri(_prop.get("kds_propUri"))), "?s")))
'''**** The case where an ID looking up a the triples for
a non-linked related is not functioning i.e. password
ClassID not looking up person org triples if the org
class is not used in the form. This may not be a
problem ... the below comment out is a start to solving
if it is a problem
elif _linked_class != self.get_class_name(prop.get(\
"classUri")):
_sparql_elements.append(
"\t" +_base_subject_finder + "\n " +
"\t"+ make_triple("?classID", iri(prop.get(\
"propUri")), "?s") + "\n\t?s ?p ?o .")'''
# merge the sparql elements for each class used into one combined
# sparql union statement
_sparql_unions = "{{\n{}\n}}".format("\n} UNION {\n".join(\
_sparql_elements))
if _data_list:
_list_binding = "?itemID"
else:
_list_binding = ''
# render the statment in the jinja2 template
_sparql = render_without_request("sparqlItemTemplate.rq",
prefix=rdfw().get_prefix(),
query=_sparql_unions,
list_binding=_list_binding)
if debug:
print("SPARQL query")
print(_sparql)
if debug: print("END create_data_sparql_query ---------------------\n")
return _sparql
def __format_data_for_save(self, processed_data, pre_save_data):
''' takes the processed data and formats the values for the sparql
query '''
if not DEBUG:
debug = False
else:
debug = False
if debug: print("START RdfClass.__format_data_for_save -----------\n")
_save_data = []
#if "obi_recipient" in pre_save_data.keys():
# x=y
if debug: print("format data***********\n")
if debug: pp.pprint(processed_data)
# cycle throught the properties in the processed data
for _prop_uri, prop in processed_data.items():
# if the property is maked for deletion add it to the save list
if isinstance(prop, NotInFormClass):
pass
elif isinstance(prop, DeleteProperty):
_save_data.append([_prop_uri, prop])
# if the property is a file object send it to the repository and
# add the new uri to the save data list
elif isinstance(prop, FileStorage):
_file_iri = save_file_to_repository(\
prop, pre_save_data[_prop_uri][0].get('old'))
_save_data.append([_prop_uri, _file_iri])
# otherwise determine the range of the property and format it in
# the correct sparl format
else:
# some properties have more than one option for the object
# value i.e. schema:image can either store a ImageObject or
# a Url to an image. We need to determine the range options
_range_list = make_list(self.kds_properties[_prop_uri].get(\
"rdfs_range", [{}]))
_storage_types = set()
_data_types = set()
# cycle through the range_list and get the sets of options
for _range_dict in _range_list:
_storage_types.add(_range_dict.get('storageType'))
if _range_dict.get('storageType') == "literal":
_data_types.add(_range_dict.get('rangeClass'))
_data_type = "xsd_string"
for _type in _data_types:
if "xsd" in _type:
_data_type = _type
# cycle through the items in the current prop
_value_list = make_list(prop)
for item in _value_list:
if 'object' in _storage_types or 'blanknode' in \
_storage_types:
uri_test = uri(item)
if debug: print(_prop_uri, " - ", uri_test)
if uri_test.startswith("http"):
_save_data.append([_prop_uri, iri(uri(item))])
elif 'literal' in _storage_types:
_save_data.append([_prop_uri, RdfDataType(\
_data_type).sparql(str(item))])
else:
_save_data.append([_prop_uri, iri(uri(item))])
else:
_item = str(item).encode('unicode_escape')
_save_data.append([_prop_uri, RdfDataType(\
_data_type).sparql(str(item))])
if debug: print("END RdfClass.__format_data_for_save -----------\n")
return _save_data
def create_data_sparql_query(obj, **kwargs):
''' generates the sparql query for getting an object's data '''
if not DEBUG:
debug = False
else:
debug = False
if debug: print("START create_data_sparql_query -----------------------\n")
if debug: print("*** kwargs ***: \n%s \n*** obj ***:\n%s" %
(pp.pformat(kwargs), pp.pformat(obj.__dict__)))
from rdfframework import RdfDataType
subject_uri = kwargs.get("subject_uri", obj.data_subject_uri)
_class_uri = kwargs.get("class_uri", obj.data_class_uri)
_formated_val = None
_lookup_triple = ""
if obj.rdf_instructions.get("kds_subjectUriTransform"):
if obj.rdf_instructions.get("kds_subjectUriTransform") == \
"kdr_UidToRepositoryUri":
id_value = kwargs.get("id_value")
if kwargs.get("id_value"):
_subject_uri = uid_to_repo_uri(id_value)
subject_uri = _subject_uri
obj.data_subject_uri = _subject_uri
elif obj.rdf_instructions.get("kds_subjectUriTransform") == \
"kdr_UidToTriplestoreUri":
id_value = kwargs.get("id_value")
if kwargs.get("id_value"):
rdf_class = getattr(rdfw(), obj.data_class_uri)
subject_uri = rdf_class.uri_patterner(id_value)
obj.data_subject_uri = subject_uri
elif kwargs.get("id_value") or obj.rdf_instructions.get("kds_lookupPropertyUri"):
# find the details for formating the sparql query for the supplied
# id_value or lookup via a property Value
id_value = kwargs.get("id_value")
if not id_value:
id_value = subject_uri
_kds_propUri = obj.rdf_instructions.get("kds_lookupPropertyUri")
_rdf_class_uri = obj.rdf_instructions.get("kds_lookupPropertyClass")
if not _rdf_class_uri:
_rdf_class_uri = obj.rdf_instructions.get("kds_lookupClassUri")
_rdf_class = getattr(rdfw(),_rdf_class_uri)
_rdf_prop = _rdf_class.kds_properties[_kds_propUri]
_range = make_list(_rdf_prop.get("rdfs_range"))[0]
_formated_val = RdfDataType(_range.get("rangeClass")).sparql(id_value)
_lookup_triple = "\t{}\n\t{}\n\t".format(
make_triple("?subject",
"a",
iri(uri(_rdf_class.kds_classUri))),
make_triple("?subject",
iri(uri(_kds_propUri)),
_formated_val))
subject_uri = "?subject"
subject_lookup = kwargs.get("subject_lookup")
if subject_lookup:
# subject lookup will pull a subject and all of its related data
_kds_propUri = iri(uri(subject_lookup.kds_propUri))
_data_type = uri(make_list(subject_lookup.rdfs_range)[0])
_prop_value = RdfDataType(_data_type).sparql(\
str(subject_lookup.data))
_sparql = render_without_request("sparqlRelatedItemDataTemplate.rq",
prefix=rdfw().get_prefix(),
kds_propUri=_kds_propUri,
prop_value=_prop_value)
return _sparql
_lookup_class_uri = _class_uri
_sparql_args = None
_sparql_constructor = copy.deepcopy(obj.dependancies)
if debug:
print("+++++++++++++++++++++++ Dependancies:")
pp.pprint(_sparql_constructor)
_base_subject_finder = None
_linked_class = None
_linked_prop = False
_sparql_elements = []
_subform_data = {}
_data_list = obj.is_subobj
_parent_field = None
if is_not_null(subject_uri):
# find the primary linkage between the supplied subjectId and
# other form classes
for _rdf_class in _sparql_constructor:
for _prop in _sparql_constructor[_rdf_class]:
try:
if _class_uri == _prop.get("kds_classUri"):
_sparql_args = _prop
_linked_class = _rdf_class
_sparql_constructor[_rdf_class].remove(_prop)
if _rdf_class != _lookup_class_uri:
_linked_prop = True
except:
pass
# generate the triple pattern for linked class
if debug:
print("+++++++++++++++++++++++ SPARQL Constructor")
pp.pprint(_sparql_constructor)
if _sparql_args:
# create a binding for multi-item results
if _data_list:
_list_binding = "BIND(?classID AS ?itemID) ."
else:
_list_binding = ''
# provide connection triples for the id subject and associated
# rdf class
format_string = "{}BIND({} AS ?baseSub) .\n\t{}\n\t{}\n\t{}"
_base_subject_finder = format_string.format(
_lookup_triple,
iri(subject_uri),
make_triple("?baseSub",
"a",
iri(uri(_lookup_class_uri))),
make_triple("?classID",
iri(uri(_sparql_args.get("kds_propUri"))),
"?baseSub"),
_list_binding)
# if there is a linkage between subject_uri and another associated
# property in object
if _linked_prop:
# create a binding for multi-item results
if _data_list:
_list_binding = "BIND(?s AS ?itemID) ."
else:
_list_binding = ''
format_string = \
"{}BIND({} AS ?baseSub) .\n\t{}\n\t{}\n\t{}\n\t?s ?p ?o ."
_sparql_elements.append(format_string.format(\
_lookup_triple,
iri(subject_uri),
make_triple("?baseSub",
"a",
iri(uri(_lookup_class_uri))),
make_triple("?s",
iri(uri(_sparql_args.get("kds_propUri"))),
"?baseSub"),
_list_binding))
# iterrate though the classes used in the object and generate the
# spaqrl triples to pull the data for that class
for _rdf_class in _sparql_constructor:
if _rdf_class == _class_uri:
if _data_list:
_list_binding = "BIND(?s AS ?itemID) ."
else:
_list_binding = ''
if is_not_null(_lookup_triple) and is_not_null(_list_binding):
format_string = \
"{}BIND({} AS ?basesub).\n\t{}\n\t{}\n\t{}\n\t?s ?p ?o ."
_sparql_elements.append(format_string.format(
_lookup_triple,
iri(subject_uri),
make_triple('?baseSub','a',iri(uri(_lookup_class_uri))),
make_triple('?classID',iri(uri(_sparql_args.get("kds_propUri"))),'?s'),
"BIND(?classID AS ?itemID) ."))
else:
format_string = \
"\t{}BIND({} AS ?s) .\n\t{}\n\t{}\n\t?s ?p ?o ."
_sparql_elements.append(format_string.format(
_lookup_triple,
iri(subject_uri),
make_triple("?s", "a", iri(uri(_lookup_class_uri))),
_list_binding))
for _prop in _sparql_constructor[_rdf_class]:
if _rdf_class == _class_uri:
if _data_list:
_list_binding = "BIND(?s AS ?itemID) ."
else:
_list_binding = ''
format_string = \
"\t{}BIND({} AS ?baseSub) .\n\t{}\n\t{}\n\t{}\n\t?s ?p ?o ."
_sparql_arg = format_string.format(\
_lookup_triple,
iri(subject_uri),
make_triple("?baseSub",
"a",
iri(uri(_lookup_class_uri))),
make_triple("?baseSub",
iri(uri(_prop.get("kds_propUri"))),
"?s"),
_list_binding)
_sparql_elements.append(_sparql_arg)
elif _rdf_class == _linked_class:
_sparql_elements.append(
"\t{}\n\t{}\n\t?s ?p ?o .".format(
_base_subject_finder,
make_triple("?classID",
iri(uri(_prop.get("kds_propUri"))),
"?s")
)
)
'''**** The case where an ID looking up a the triples for
a non-linked related is not functioning i.e. password
ClassID not looking up person org triples if the org
class is not used in the form. This may not be a
problem ... the below comment out is a start to solving
if it is a problem
elif _linked_class != self.get_class_name(prop.get(\
"classUri")):
_sparql_elements.append(
"\t" +_base_subject_finder + "\n " +
"\t"+ make_triple("?classID", iri(prop.get(\
"propUri")), "?s") + "\n\t?s ?p ?o .")'''
# merge the sparql elements for each class used into one combined
# sparql union statement
_sparql_unions = "{{\n{}\n}}".format("\n} UNION {\n".join(\
_sparql_elements))
if _data_list:
_list_binding = "?itemID"
else:
_list_binding = ''
# render the statment in the jinja2 template
_sparql = render_without_request("sparqlItemTemplate.rq",
prefix=rdfw().get_prefix(),
query=_sparql_unions,
list_binding=_list_binding)
if debug:
print("SPARQL query")
print(_sparql)
if debug: print("END create_data_sparql_query ---------------------\n")
return _sparql
def _run_save_query(self, save_query_obj, subject_uri=None):
if not DEBUG:
debug = False
else:
debug = True
_save_query = save_query_obj.get("query")
if debug: print("START RdfClass._run_save_query -------------------\n")
if debug: print("triplestore: ", self.triplestore_url)
if debug: print("repository: ", self.repository_url)
if not subject_uri:
subject_uri = save_query_obj.get("subjectUri")
if debug: print("_save_query:\n", _save_query)
if _save_query:
# a "[" at the start of the save query denotes a blanknode
# return the blanknode as the query result
if _save_query[:1] == "[":
object_value = _save_query
else:
# if there is no subject_uri create a new entry in the
# repository
if subject_uri == "<>" or save_query_obj.get("new_status"):
if debug: print("Enter New")
if self.kds_saveLocation == "repository":
repository_result = requests.post(
self.repository_url,
data=_save_query,
headers={"Content-type": "text/turtle"})
if debug: print("repository_result: ",
repository_result,
" ",
repository_result.text)
object_value = repository_result.text
elif self.kds_saveLocation == "triplestore":
triplestore_result = requests.post(
url=self.triplestore_url,
headers={"Content-Type":
"text/turtle"},
data=_save_query)
if debug: print("triplestore_result: ",
triplestore_result,
" ",
triplestore_result.text)
object_value = subject_uri
elif self.kds_saveLocation == "elasticsearch":
print ("**************** ES Connection NOT Built")
elif self.kds_saveLocation == "sql_database":
print ("**************** SQL Connection NOT Built")
# if the subject uri exists send an update query to the
# specified datastore
else:
if debug: print("Enter Update")
if self.kds_saveLocation == "repository":
_headers = {"Content-type":
"application/sparql-update"}
_url = clean_iri(subject_uri)
repository_result = \
requests.patch(_url, data=_save_query,
headers=_headers)
if debug: print("repository_result: ",
repository_result,
" ",
repository_result.text)
object_value = iri(subject_uri)
elif self.kds_saveLocation == "triplestore":
_url = self.triplestore_url
triplestore_result = requests.post(_url,
data={"update":_save_query})
if debug: print("triplestore_result: ",
triplestore_result,
" ",
triplestore_result.text)
object_value = iri(subject_uri)
elif self.kds_saveLocation == "elasticsearch":
print ("**************** ES Connection NOT Built")
elif self.kds_saveLocation == "sql_database":
print ("**************** SQL Connection NOT Built")
if debug: print("END RdfClass._run_save_query ----------------\n")
return {"status": "success",
"lastSave": {
"objectValue": object_value}
}
else:
if debug: print("Enter No Data to Save")
if debug: print("END RdfClass._run_save_query ---NO DATA-------\n")
return {"status": "success",
"lastSave": {
"objectValue": iri(subject_uri),
"comment": "No data to Save"}
}
