I just want the tutorial

examples/tutorial/flaskr/blog.py

@@ -1,125 +0,0 @@
-from flask import Blueprint
-from flask import flash
-from flask import g
-from flask import redirect
-from flask import render_template
-from flask import request
-from flask import url_for
-from werkzeug.exceptions import abort
-
-from .auth import login_required
-from .db import get_db
-
-bp = Blueprint("blog", __name__)
-
-
-@bp.route("/")
-def index():
-    """Show all the posts, most recent first."""
-    db = get_db()
-    posts = db.execute(
-        "SELECT p.id, title, body, created, author_id, username"
-        " FROM post p JOIN user u ON p.author_id = u.id"
-        " ORDER BY created DESC"
-    ).fetchall()
-    return render_template("blog/index.html", posts=posts)
-
-
-def get_post(id, check_author=True):
-    """Get a post and its author by id.
-
-    Checks that the id exists and optionally that the current user is
-    the author.
-
-    :param id: id of post to get
-    :param check_author: require the current user to be the author
-    :return: the post with author information
-    :raise 404: if a post with the given id doesn't exist
-    :raise 403: if the current user isn't the author
-    """
-    post = (
-        get_db()
-        .execute(
-            "SELECT p.id, title, body, created, author_id, username"
-            " FROM post p JOIN user u ON p.author_id = u.id"
-            " WHERE p.id = ?",
-            (id,),
-        )
-        .fetchone()
-    )
-
-    if post is None:
-        abort(404, f"Post id {id} doesn't exist.")
-
-    if check_author and post["author_id"] != g.user["id"]:
-        abort(403)
-
-    return post
-
-
-@bp.route("/create", methods=("GET", "POST"))
-@login_required
-def create():
-    """Create a new post for the current user."""
-    if request.method == "POST":
-        title = request.form["title"]
-        body = request.form["body"]
-        error = None
-
-        if not title:
-            error = "Title is required."
-
-        if error is not None:
-            flash(error)
-        else:
-            db = get_db()
-            db.execute(
-                "INSERT INTO post (title, body, author_id) VALUES (?, ?, ?)",
-                (title, body, g.user["id"]),
-            )
-            db.commit()
-            return redirect(url_for("blog.index"))
-
-    return render_template("blog/create.html")
-
-
-@bp.route("/<int:id>/update", methods=("GET", "POST"))
-@login_required
-def update(id):
-    """Update a post if the current user is the author."""
-    post = get_post(id)
-
-    if request.method == "POST":
-        title = request.form["title"]
-        body = request.form["body"]
-        error = None
-
-        if not title:
-            error = "Title is required."
-
-        if error is not None:
-            flash(error)
-        else:
-            db = get_db()
-            db.execute(
-                "UPDATE post SET title = ?, body = ? WHERE id = ?", (title, body, id)
-            )
-            db.commit()
-            return redirect(url_for("blog.index"))
-
-    return render_template("blog/update.html", post=post)
-
-
-@bp.route("/<int:id>/delete", methods=("POST",))
-@login_required
-def delete(id):
-    """Delete a post.
-
-    Ensures that the post exists and that the logged in user is the
-    author of the post.
-    """
-    get_post(id)
-    db = get_db()
-    db.execute("DELETE FROM post WHERE id = ?", (id,))
-    db.commit()
-    return redirect(url_for("blog.index"))