def rename_post() -> None:
blog_post = get_blog_post_by_id()
old_slug_path = blog_post.slug_path
blog_post.name = input(f"Rename post \"{blog_post.name}\" to: ")
os.rename(old_slug_path, blog_post.slug_path)
db.commit()
done()
def save_changes() -> None:
print("Saving changes... ", end="")
try:
db.commit()
done()
except IntegrityError:
print("Error!\n\n" +
"This error was caused by invalid data.\n" +
"You probably created multiple records with non-unique names.")
def process_resource_files(blog_post: BlogPost) -> None:
for root, _, files in os.walk(blog_post.resources_path, topdown=True):
for file in files:
file_path = os.path.join(root, file)
extension = "." + file.rsplit(".", 1)[-1]
# Hash file contents, this is the new file name
file_hash = hash_file(file_path)
file_title = file_name_to_title(file)
# Optimize images for web (create thumbnails)
if imghdr.what(file_path):
full_size_file_name = f"{file_hash}.{IMAGE_FORMAT}"
thumbnail_file_name = f"{file_hash}-thumb.{IMAGE_FORMAT}"
db.add(
FileResource(full_size_file_name,
"high-res-" + file,
file_title,
blog_post,
is_image=True,
is_thumbnail=False))
db.add(
FileResource(thumbnail_file_name,
file,
file_title + " (Thumbnail)",
blog_post,
is_image=True,
is_thumbnail=True))
with Image.open(file_path) as image:
image.thumbnail((MAX_THUMBNAIL_WIDTH, -1))
image.save(in_res_path(thumbnail_file_name),
IMAGE_FORMAT,
optimize=True)
with Image.open(file_path) as image:
image.save(in_res_path(full_size_file_name),
IMAGE_FORMAT,
optimize=True)
else:
# Copy the file to the resources dir, no processing
new_file_name = file_hash + extension
db.add(FileResource(new_file_name, file, file_title,
blog_post))
copyfile(file_path, in_res_path(new_file_name))
db.commit()
def recreate_file_resources_for_post(blog_post: BlogPost):
for file_resource in blog_post.file_resources:
db.delete(file_resource)
db.commit()
process_resource_files(blog_post)
def try_with_integrity_protection(statement: Callable) -> None:
try:
statement()
db.commit()
except IntegrityError:
db.rollback() # Duplicate.
lambda: blog_post.comments.append(comment))
return redirect(
url_for("home.route_blog_post",
blog_post_id=blog_post_id,
_name=_name))
# The cache object is a function-static (like in C) variable
blog_post_content = route_blog_post.file_cache.get_contents(
blog_post.html_path)
# Flush the ip tracker, and then, check if we should count this request as a true hit.
route_blog_post.ip_tracker.remove_expired()
if route_blog_post.ip_tracker.should_count_request(request.remote_addr,
blog_post_id):
blog_post.hits += 1
db.commit()
# Select a random image to be served for opengraph embeds.
image_resources = [
fr for fr in blog_post.file_resources if fr.is_thumbnail
]
open_graph_image = in_res_path(
random.choice(image_resources).name) if image_resources else None
return render_template("blog_post.html",
title=blog_post.name,
return_to_root=True,
blog_post=blog_post,
blog_post_content=blog_post_content,
form=CommentForm(),
open_graph_image=open_graph_image)