python-gallery/gallery/views/image.py
Michał d36699bd1f Update database
Correctly link user to their posts and groups
Change the table names to Group, Post and User
Remove unused Bans and Logs table, possibly will return later
2023-04-12 15:16:43 +00:00

82 lines
2.4 KiB
Python

"""
Onlylegs - Image View
"""
from math import ceil
from flask import Blueprint, render_template, url_for, current_app
from gallery.models import Post, GroupJunction, Group
from gallery.extensions import db
blueprint = Blueprint("image", __name__, url_prefix="/image")
@blueprint.route("/<int:image_id>")
def image(image_id):
"""
Image view, shows the image and its metadata
"""
# Get the image, if it doesn't exist, 404
image = db.get_or_404(Post, image_id, description="Image not found :<")
# Get all groups the image is in
groups = (
GroupJunction.query.with_entities(GroupJunction.group_id)
.filter(GroupJunction.post_id == image_id)
.all()
)
# Get the group data for each group the image is in
image.groups = []
for group in groups:
image.groups.append(
Group.query.with_entities(Group.id, Group.name)
.filter(Group.id == group[0])
.first()
)
# Get the next and previous images
# Check if there is a group ID set
next_url = (
Post.query.with_entities(Post.id)
.filter(Post.id > image_id)
.order_by(Post.id.asc())
.first()
)
prev_url = (
Post.query.with_entities(Post.id)
.filter(Post.id < image_id)
.order_by(Post.id.desc())
.first()
)
# If there is a next or previous image, get the url
if next_url:
next_url = url_for("image.image", image_id=next_url[0])
if prev_url:
prev_url = url_for("image.image", image_id=prev_url[0])
# Yoink all the images in the database
total_images = Post.query.with_entities(Post.id).order_by(Post.id.desc()).all()
limit = current_app.config["UPLOAD_CONF"]["max-load"]
# If the number of items is less than the limit, no point of calculating the page
if len(total_images) <= limit:
return_page = None
else:
# How many pages should there be
for i in range(ceil(len(total_images) / limit)):
# Slice the list of IDs into chunks of the limit
for j in total_images[i * limit : (i + 1) * limit]:
# Is our image in this chunk?
if not image_id > j[-1]:
return_page = i + 1
break
return render_template(
"image.html",
image=image,
next_url=next_url,
prev_url=prev_url,
return_page=return_page,
)