def test_update_children(self):
"""
test updating an item's children ensuring the definition doesn't version but the course does if it should
"""
locator = BlockUsageLocator(course_id="GreekHero", usage_id="chapter3", branch='draft')
block = modulestore().get_item(locator)
pre_def_id = block.definition_locator.definition_id
pre_version_guid = block.location.version_guid
# reorder children
self.assertGreater(len(block.children), 0, "meaningless test")
moved_child = block.children.pop()
block.save() # decache model changes
updated_problem = modulestore().update_item(block, 'childchanger')
# check that course version changed and course's previous is the other one
self.assertEqual(updated_problem.definition_locator.definition_id, pre_def_id)
self.assertNotEqual(updated_problem.location.version_guid, pre_version_guid)
self.assertEqual(updated_problem.children, block.children)
self.assertNotIn(moved_child, updated_problem.children)
locator.usage_id = "chapter1"
other_block = modulestore().get_item(locator)
other_block.children.append(moved_child)
other_block.save() # decache model changes
other_updated = modulestore().update_item(other_block, 'childchanger')
self.assertIn(moved_child, other_updated.children)
def test_get_parents(self):
'''
get_parent_locations(locator, [usage_id], [branch]): [BlockUsageLocator]
'''
locator = BlockUsageLocator(course_id="GreekHero", branch='draft', usage_id='chapter1')
parents = modulestore().get_parent_locations(locator)
self.assertEqual(len(parents), 1)
self.assertEqual(parents[0].usage_id, 'head12345')
self.assertEqual(parents[0].course_id, "GreekHero")
locator.usage_id = 'chapter2'
parents = modulestore().get_parent_locations(locator)
self.assertEqual(len(parents), 1)
self.assertEqual(parents[0].usage_id, 'head12345')
locator.usage_id = 'nosuchblock'
parents = modulestore().get_parent_locations(locator)
self.assertEqual(len(parents), 0)
