def validate_updates(taglist):
"""
Validates that the list of tags specified to be updated currently
exist. If one or more tags do not already exist, it generates a
`InvalidAttemptToModifyTagsError` exception.
:return: None
"""
preexisting_keys = list_of_keys_of(taglist.current_list)
keys_of_tags_to_update = list_of_keys_of(taglist.updates)
non_existent_key_set = list(
set(keys_of_tags_to_update) - set(preexisting_keys))
if non_existent_key_set:
raise_validation_error(
problematic_key_set=non_existent_key_set,
problem_message=strings['tags.tag_keys_dont_exist_for_update'],
exception_class=InvalidAttemptToModifyTagsError)
def validate_updates(taglist):
"""
Validates that the list of tags specified to be updated currently
exist. If one or more tags do not already exist, it generates a
`InvalidAttemptToModifyTagsError` exception.
:return: None
"""
preexisting_keys = list_of_keys_of(taglist.current_list)
keys_of_tags_to_update = list_of_keys_of(taglist.updates)
non_existent_key_set = list(set(keys_of_tags_to_update) - set(preexisting_keys))
if non_existent_key_set:
raise_validation_error(
problematic_key_set=non_existent_key_set,
problem_message=strings['tags.tag_keys_dont_exist_for_update'],
exception_class=InvalidAttemptToModifyTagsError
)
def validate_additions(taglist):
"""
Validates that the list of tags specified to be added do not
already exist. If one or more tags already exist, it generates a
`AttemptToCreatePreexistingTagsError` exception.
:return: None
"""
preexisting_keys = list_of_keys_of(taglist.current_list)
keys_of_tags_to_create = list_of_keys_of(taglist.additions)
preexisting_key_set = set(preexisting_keys).intersection(
keys_of_tags_to_create)
if preexisting_key_set:
raise_validation_error(
problematic_key_set=preexisting_key_set,
problem_message=strings['tags.tag_keys_already_exist'],
exception_class=InvalidAttemptToModifyTagsError)
def validate_additions(taglist):
"""
Validates that the list of tags specified to be added do not
already exist. If one or more tags already exist, it generates a
`AttemptToCreatePreexistingTagsError` exception.
:return: None
"""
preexisting_keys = list_of_keys_of(taglist.current_list)
keys_of_tags_to_create = list_of_keys_of(taglist.additions)
preexisting_key_set = set(preexisting_keys).intersection(keys_of_tags_to_create)
if preexisting_key_set:
raise_validation_error(
problematic_key_set=preexisting_key_set,
problem_message=strings['tags.tag_keys_already_exist'],
exception_class=InvalidAttemptToModifyTagsError
)
def test_list_of_keys_of(self):
list_of_tags = [
{
'Key': 'key1',
'Value': 'value',
},
{
'Key': 'key2',
'Value': 'value',
},
]
self.assertEqual(['key1', 'key2'], list_of_keys_of(list_of_tags))
def __communicate_changes_to_stdout(self):
"""
Print changes to STDOUT.
:return: None
"""
keys_to_update = list_of_keys_of(self.taglist.updates)
additions = [
addition for addition in self.taglist.additions
if addition['Key'] not in keys_to_update
]
deletions = self.taglist.deletions
updates = self.taglist.updates
if additions:
io.echo('Added Tags:')
io.echo(
linesep.join([
" Key: '{0}' Value: '{1}'".format(
addition['Key'], addition['Value'])
for addition in additions
]))
io.echo('')
if deletions:
io.echo('Deleted Tags:')
io.echo(
linesep.join([
" Key: '{0}'".format(deletion) for deletion in deletions
]))
io.echo('')
if updates:
io.echo('Updated Tags:')
io.echo(
linesep.join([
" Key: '{0}' Value: '{1}'".format(
update['Key'], update['Value']) for update in updates
]))
io.echo('')
def __communicate_changes_to_stdout(self):
"""
Print changes to STDOUT.
:return: None
"""
keys_to_update = list_of_keys_of(self.taglist.updates)
additions = [addition for addition in self.taglist.additions if addition['Key'] not in keys_to_update]
deletions = self.taglist.deletions
updates = self.taglist.updates
if additions:
io.echo('Added Tags:')
io.echo(linesep.join([" Key: '{0}' Value: '{1}'".format(addition['Key'], addition['Value']) for addition in additions]))
io.echo('')
if deletions:
io.echo('Deleted Tags:')
io.echo(linesep.join([" Key: '{0}'".format(deletion) for deletion in deletions]))
io.echo('')
if updates:
io.echo('Updated Tags:')
io.echo(linesep.join([" Key: '{0}' Value: '{1}'".format(update['Key'], update['Value']) for update in updates]))
io.echo('')
def test_list_of_keys_of__empty_list_of_tags(self):
list_of_tags = []
self.assertEqual([], list_of_keys_of(list_of_tags))
