def put(self, story_id):
"""Updates properties of the given story."""
story = story_fetchers.get_story_by_id(story_id, strict=False)
version = self.payload.get('version')
self._require_valid_version(version, story.version)
commit_message = self.payload.get('commit_message')
if commit_message is None:
raise self.InvalidInputException(
'Expected a commit message but received none.')
if len(commit_message) > constants.MAX_COMMIT_MESSAGE_LENGTH:
raise self.InvalidInputException(
'Commit messages must be at most %s characters long.'
% constants.MAX_COMMIT_MESSAGE_LENGTH)
change_dicts = self.payload.get('change_dicts')
change_list = [
story_domain.StoryChange(change_dict)
for change_dict in change_dicts
]
try:
# Update the Story and its corresponding TopicSummary.
topic_services.update_story_and_topic_summary(
self.user_id, story_id, change_list, commit_message,
story.corresponding_topic_id)
except utils.ValidationError as e:
raise self.InvalidInputException(e)
story_dict = story_fetchers.get_story_by_id(story_id).to_dict()
self.values.update({
'story': story_dict
})
self.render_json(self.values)
def post(self, topic_id):
"""Handles POST requests.
Currently, this only adds the story to the canonical story id list of
the topic.
"""
title = self.normalized_payload.get('title')
description = self.normalized_payload.get('description')
thumbnail_filename = self.normalized_payload.get('filename')
thumbnail_bg_color = self.normalized_payload.get('thumbnailBgColor')
raw_image = self.normalized_request.get('image')
story_url_fragment = self.normalized_payload.get('story_url_fragment')
story_domain.Story.require_valid_title(title)
if story_services.does_story_exist_with_url_fragment(
story_url_fragment):
raise self.InvalidInputException(
'Story url fragment is not unique across the site.')
new_story_id = story_services.get_new_story_id()
# Add the story id to canonical_story_ids in the topic.
# Topic validation occurs right before the field is updated. If there
# is a validation failure, the story id will not be added to the
# canonical_story_ids field in the Topic and the Story model does not
# get created. Hence, topic_services.add_canonical_story is called
# before story_services.save_new_story.
topic_services.add_canonical_story(self.user_id, topic_id,
new_story_id)
story = story_domain.Story.create_default_story(
new_story_id, title, description, topic_id, story_url_fragment)
story_services.save_new_story(self.user_id, story)
try:
file_format = (
image_validation_services.validate_image_and_filename(
raw_image, thumbnail_filename))
except utils.ValidationError as e:
raise self.InvalidInputException(e)
entity_id = new_story_id
filename_prefix = 'thumbnail'
image_is_compressible = (file_format
in feconf.COMPRESSIBLE_IMAGE_FORMATS)
fs_services.save_original_and_compressed_versions_of_image(
thumbnail_filename, feconf.ENTITY_TYPE_STORY, entity_id, raw_image,
filename_prefix, image_is_compressible)
topic_services.update_story_and_topic_summary(
self.user_id, new_story_id, [
story_domain.StoryChange({
'cmd': 'update_story_property',
'property_name': 'thumbnail_filename',
'old_value': None,
'new_value': thumbnail_filename
}),
story_domain.StoryChange({
'cmd': 'update_story_property',
'property_name': 'thumbnail_bg_color',
'old_value': None,
'new_value': thumbnail_bg_color
}),
], 'Added story thumbnail.', topic_id)
self.render_json({'storyId': new_story_id})
