def update_story(committer_id, story_id, change_list, commit_message):
"""Updates a story. Commits changes.
Args:
committer_id: str. The id of the user who is performing the update
action.
story_id: str. The story id.
change_list: list(StoryChange). These changes are applied in sequence to
produce the resulting story.
commit_message: str or None. A description of changes made to the
story.
Raises:
ValidationError. Exploration is already linked to a different story.
"""
if not commit_message:
raise ValueError('Expected a commit message but received none.')
old_story = story_fetchers.get_story_by_id(story_id)
new_story, exp_ids_removed_from_story, exp_ids_added_to_story = (
apply_change_list(story_id, change_list))
story_is_published = _is_story_published_and_present_in_topic(new_story)
if (old_story.url_fragment != new_story.url_fragment
and does_story_exist_with_url_fragment(new_story.url_fragment)):
raise utils.ValidationError(
'Story Url Fragment is not unique across the site.')
_save_story(committer_id, new_story, commit_message, change_list,
story_is_published)
create_story_summary(new_story.id)
if story_is_published and _is_topic_published(new_story):
opportunity_services.update_exploration_opportunities(
old_story, new_story)
suggestion_services.auto_reject_translation_suggestions_for_exp_ids(
exp_ids_removed_from_story)
exploration_context_models_to_be_deleted = (
exp_models.ExplorationContextModel.get_multi(
exp_ids_removed_from_story))
exploration_context_models_to_be_deleted = [
model for model in exploration_context_models_to_be_deleted
if model is not None
]
exp_models.ExplorationContextModel.delete_multi(
exploration_context_models_to_be_deleted)
exploration_context_models_collisions_list = (
exp_models.ExplorationContextModel.get_multi(exp_ids_added_to_story))
for context_model in exploration_context_models_collisions_list:
if context_model is not None and context_model.story_id != story_id:
raise utils.ValidationError(
'The exploration with ID %s is already linked to story '
'with ID %s' % (context_model.id, context_model.story_id))
new_exploration_context_models = [
exp_models.ExplorationContextModel(id=exp_id, story_id=story_id)
for exp_id in exp_ids_added_to_story
]
exp_models.ExplorationContextModel.put_multi(
new_exploration_context_models)
def update_story(committer_id, story_id, change_list, commit_message):
"""Updates a story. Commits changes.
Args:
committer_id: str. The id of the user who is performing the update
action.
story_id: str. The story id.
change_list: list(StoryChange).These changes are applied in sequence to
produce the resulting story.
commit_message: str or None. A description of changes made to the
story.
"""
if not commit_message:
raise ValueError('Expected a commit message but received none.')
old_story = story_fetchers.get_story_by_id(story_id)
new_story = apply_change_list(story_id, change_list)
_save_story(committer_id, new_story, commit_message, change_list)
create_story_summary(new_story.id)
opportunity_services.update_exploration_opportunities(old_story, new_story)
