dde76ea960
Ran tests, and black afterwards. Updated changes.rst and included pre-commit hooks as required. Ran isort on imports.
119 lines
3.1 KiB
Python
119 lines
3.1 KiB
Python
from flaskr.auth import login_required
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from flaskr.db import get_db
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from werkzeug.exceptions import abort
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from flask import Blueprint, flash, g, redirect, render_template, request, url_for
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bp = Blueprint("blog", __name__)
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@bp.route("/")
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def index():
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"""Show all the posts, most recent first."""
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db = get_db()
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posts = db.execute(
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"SELECT p.id, title, body, created, author_id, username"
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" FROM post p JOIN user u ON p.author_id = u.id"
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" ORDER BY created DESC"
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).fetchall()
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return render_template("blog/index.html", posts=posts)
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def get_post(id, check_author=True):
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"""Get a post and its author by id.
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Checks that the id exists and optionally that the current user is
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the author.
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:param id: id of post to get
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:param check_author: require the current user to be the author
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:return: the post with author information
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:raise 404: if a post with the given id doesn't exist
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:raise 403: if the current user isn't the author
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"""
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post = (
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get_db()
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.execute(
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"SELECT p.id, title, body, created, author_id, username"
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" FROM post p JOIN user u ON p.author_id = u.id"
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" WHERE p.id = ?",
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(id,),
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)
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.fetchone()
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)
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if post is None:
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abort(404, f"Post id {id} doesn't exist.")
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if check_author and post["author_id"] != g.user["id"]:
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abort(403)
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return post
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@bp.route("/create", methods=("GET", "POST"))
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@login_required
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def create():
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"""Create a new post for the current user."""
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if request.method == "POST":
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title = request.form["title"]
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body = request.form["body"]
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error = None
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if not title:
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error = "Title is required."
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if error is not None:
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flash(error)
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else:
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db = get_db()
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db.execute(
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"INSERT INTO post (title, body, author_id) VALUES (?, ?, ?)",
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(title, body, g.user["id"]),
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)
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db.commit()
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return redirect(url_for("blog.index"))
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return render_template("blog/create.html")
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@bp.route("/<int:id>/update", methods=("GET", "POST"))
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@login_required
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def update(id):
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"""Update a post if the current user is the author."""
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post = get_post(id)
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if request.method == "POST":
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title = request.form["title"]
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body = request.form["body"]
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error = None
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if not title:
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error = "Title is required."
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if error is not None:
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flash(error)
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else:
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db = get_db()
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db.execute(
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"UPDATE post SET title = ?, body = ? WHERE id = ?", (title, body, id)
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)
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db.commit()
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return redirect(url_for("blog.index"))
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return render_template("blog/update.html", post=post)
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@bp.route("/<int:id>/delete", methods=("POST",))
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@login_required
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def delete(id):
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"""Delete a post.
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Ensures that the post exists and that the logged in user is the
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author of the post.
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"""
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get_post(id)
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db = get_db()
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db.execute("DELETE FROM post WHERE id = ?", (id,))
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db.commit()
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return redirect(url_for("blog.index"))
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