def root_taxonomy(db):
"""Create root taxonomy element."""
from flask_taxonomies.models import Taxonomy
root = Taxonomy.create_taxonomy(code="root")
db.session.add(root)
db.session.commit()
return root
def create_taxonomy(cls, code, extra_data=None) -> Taxonomy:
"""Creates a new taxonomy.
:param code: taxonomy code
:param extra_data: taxonomy metadata
:raises IntegrityError
:returns Taxonomy
"""
before_taxonomy_created.send(current_app._get_current_object(),
code=code, extra_data=extra_data)
created = Taxonomy.create_taxonomy(code=code, extra_data=extra_data)
db.session.commit()
after_taxonomy_created.send(created)
return created
def create_update_taxonomy(data, drop):
tax_dict = next(convert_data_to_dict(data))
if 'code' not in tax_dict:
raise ValueError('Taxonomy does not contain "code"')
code = tax_dict.pop('code')
taxonomy = Taxonomy.get(code=code)
if taxonomy and drop:
db.session.delete(taxonomy)
db.session.commit()
taxonomy = None
if taxonomy:
merged_dict = taxonomy.extra_data
merged_dict.update(tax_dict)
taxonomy.update(extra_data=merged_dict)
else:
taxonomy = Taxonomy.create_taxonomy(code, tax_dict)
db.session.commit()
return taxonomy
